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Exam Code: 310-090
Exam Name: SUN (Sun Certified Business Component Developer for J2EE 1.3)
One year free update, No help, Full refund!
Total Q&A: 409 Questions and Answers
Last Update: 2013-12-16

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NO.1 Which two actions could adversely affect the portability of an EJB 2.0 bean? (Choose two.)
A. changing a thread's priority
B. directly reading or writing a file descriptor
C. using java.net.Socket to be a network client
D. demarcating a transaction in a stateless session bean
E. using bean-managed transactions in a message-driven bean
Answer: A B

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NO.2 Click the Exhibit button.
All beans involved use container-managed transactions and all methods are marked as Required. At
runtime, methodB is unable to communicate with its resource and calls the setRollbackOnly method.
What is the result?
A. JMS message redelivery semantics will apply.
B. The rollback will propagate to the sender of the message.
C. The bean's onMessage method will reattempt the sequence.
D. Transactions started by the onMessage method will always commit.
Answer: A

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NO.3 Given:
Which two elements must be included in the <resource-ref> tag? (Choose two.)
A. <res-type>
B. <res-ref-name>
C. <resource-env-ref>
D. <environment-resource>
Answer: A B

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NO.4 Given:
Which EJB role is responsible for supplying this information?
A. Deployer
B. Bean Provider
C. Container Provider
D. System Administrator
E. Application Assembler
Answer: E

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NO.5 What are two programming restrictions in the EJB 2.0 specification? (Choose two.)
A. An enterprise bean must not declare static fields as final .
B. An enterprise bean must not attempt to load a native library.
C. An enterprise bean must not attempt to create a new security manager.
D. An enterprise bean must not propagate a RuntimeException to the container.
E. An enterprise bean must not attempt to obtain a javax.naming.InitialContext .
Answer: B C

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NO.6 Which is a feature of EJB 2.0?
A. It provides synchronous message handling through message driven beans.
B. It provides support for both local and remote client views for session beans.
C. It provides support for both local and remote client views for message driven beans.
D. It guarantees that all services represented by an object will have conversational state.
Answer: B

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NO.7 Which method can be found in BOTH the EJBHome and EJBLocalHome interface?
A. getHomeHandle()
B. getEJBMetaData()
C. remove(Handle handle)
D. remove(Object primaryKey)
Answer: D

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NO.8 Which two must a Bean Provider avoid in an enterprise bean to ensure that the bean is portable to
any compliant EJB 2.0 container? (Choose two.)
(Assume that all reference variables have been correctly and legally initialized.)
A. java.sql.Connection c = aDataSource.getConnection();
B. java.security.Principal p = context.getCallerPrincipal();
C. QueueSession q = aQueueConnection.createQueueSession(true, 0);
D. Object o = new Object();
Object o2 = o.getClass().getClassLoader();
E. java.io.FileInputStream fs = new java.io.FileInputStream("MyFile");
Answer: D E

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NO.9 Which two statements are true? (Choose two.)
A. The EJB container must not allow the same enterprise bean to be deployed multiple times.
B. The EJB container must allow IIOP invocations on remote component and home interfaces.
C. The EJB container is not required to support publishing home references in a CORBA CosNaming
service.
D. The EJB container must implement the resource manager connection factory classes for resource
managers configured with the container.
E. The EJB container must allow enterprise beans deployed in the same enterprise archive to access one
another directly without having to go through home or remote interfaces.
Answer: B D

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NO.10 Which two APIs are provided to the Bean Provider by an EJB 2.0 container? (Choose two.)
A. JTA
B. JMX
C. JSP
D. JDO
E. JAXP
Answer: A E

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NO.11 Which is a capability guaranteed by all EJB 2.0 containers?
A. JTA support
B. server failover
C. load balancing
D. servlet support
E. server clustering
Answer: A

SUN   310-090   310-090   310-090

NO.12 Place the expertise on its associated EJB role.
Answer:

NO.13 Which exception can be thrown by the findByPrimaryKey method of a remotely called entity bean using
container-managed persistence?
A. javax.ejb.EJBException
B. javax.ejb.DuplicateKeyException
C. javax.ejb.NoSuchEntityException
D. javax.ejb.ObjectNotFoundException
Answer: D

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NO.14 What is true about using java.net.Socket and java.net.ServerSocket within session bean business
methods?
A. Both classes can be used.
B. Neither class can be used.
C. Of the two classes, only java.net.Socket can be used.
D. Of the two classes, only java.net.ServerSocket can be used.
Answer: C

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NO.15 Which two are guaranteed to a Bean Provider using an EJB 2.0 container? (Choose two.)
A. access to the JCE API
B. access to JavaMail API
C. access to the JXTA API
D. access to the JAXP API
Answer: B D

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NO.16 Which method from javax.ejb.EJBContext returns an object that allows a Bean Provider to demarcate
transactions?
A. begin()
B. getAutoCommit()
C. getTransaction()
D. beginTransaction()
E. getUserTransaction()
Answer: E

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NO.17 Which feature is mandatory for an EJB 2.0 compliant container?
A. JMX support
B. JVM co-resident JSPs
C. deferred database writes
D. lazy loading of entity bean data
E. client principal caller propagation
Answer: E

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NO.18 Which transaction attribute may cause a javax.transaction.TransactionRequiredException to be
thrown?
A. Required
B. Supports
C. Mandatory
D. RequiresNew
Answer: C

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NO.19 Which is a Bean Provider's security-related responsibility?
A. assigns principals to roles in the application server
B. declares the role-link element in the deployment descriptor
C. declares the security-role element in the deployment descriptor
D. declares the security-role-ref element in the deployment descriptor
Answer: D

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NO.20 Which statement about EJB QL is true?
A. An EJB QL query must contain the ORDER BY clause.
B. An EJB QL query is statically defined in the ejb-jar.xml deployment descriptor.
C. Duplicate values are always removed from EJB QL query results by the container.
D. It is legal to use an input parameter in the FROM clause or the SELECT clause of an EJB QL query.
Answer: B

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NO.21 Label the methods according to whether the container ensures that the identity of the associated
entity object is available or unavailable to the instance during the method.
Answer:

NO.22 Which two are required to properly implement a CMP entity bean class? (Choose two.)
A. Declare variables for all persistent fields.
B. Provide constructors to initialize the CMP fields.
C. Do not implement the ejbFind<METHOD> methods.
D. Provide implementation code for get and set methods to store and retrieve the persistent fields.
E. Implement ejbCreate<METHOD> methods for all home interface create<METHOD> methods.
Answer: C E

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NO.23 Which two are valid types for persistent fields in a CMP 2.0 entity bean? (Choose two.)
A. Java primitives
B. entity bean local interfaces
C. classes implementing java.io.Serializable
D. either java.util.Collection or java.util.Set
Answer: A C

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NO.24 Which statement is true about a session bean's lifecycle?
A. Session beans cannot receive re-entrant loopback calls.
B. A stateless session bean's home interface can have overloaded create methods.
C. Stateless session beans can implement javax.ejb.SessionSynchronization.
D. The EJB 2.0 container can make concurrent calls to any stateful session bean instance.
Answer: A

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NO.25 Who must ensure that a bean's environment entries are set to meaningful values?
A. Deployer
B. Bean Provider
C. EJB Server Provider
D. System Administrator
E. Application Assembler
F. EJB Container Provider
Answer: A

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NO.26 What two statements are true about EJB 2.0 container crashes? (Choose two.)
A. Entities will survive.
B. An entity bean's primary key will survive.
C. Message-driven bean instances will survive.
D. Stateful session bean instances will survive.
E. Crashes are guaranteed to be transparent to clients using entity beans.
Answer: A B

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NO.27 Which two must a Bean Provider supply for each enterprise bean in the deployment descriptor?
(Choose two.)
A. security roles
B. the JNDI name of the enterprise bean
C. the enterprise bean type: session, entity, or message-driven
D. the value of the transaction attributes for the home and component interface methods
E. the fully-qualified name of the class that implements the enterprise bean's business methods
Answer: C E

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NO.28 Which two must be in an ejb-jar file, either by inclusion or reference? (Choose two.)
A. an enterprise archive (.ear) file
B. a deployment descriptor in the format defined by the EJB 2.0 specification
C. the class files for the classes that implement the home and remote interfaces
D. the class files for the interfaces and superinterfaces used by the bean, except J2SE or J2EE interfaces
E. the class files for the stub classes of the EJBHome andEJBObject interfaces, if remote interfaces are
deployed for the bean
Answer: B D

SUN   310-090   310-090

NO.29 Which two statements about a client's reference to a session bean's remote home interface are true?
(Choose two.)
A. The reference can be passed as a method argument.
B. The reference provides the client with the IP address of the bean instance.
C. The reference provides the client with access to at least one create method.
D. A new home reference must be obtained for each new reference to a remote component interface.
Answer: A C

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NO.30 Which accurately describes a characteristic of EJB 2.0?
A. EJB 2.0 is an example of a web-based component model.
B. EJB 2.0 components must be directly accessible via HTTP.
C. EJB 2.0 is an example of a component model for GUI applications.
D. EJB 2.0 applications can link to legacy systems using a J2EE connector.
Answer: D

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Exam Code: 310-019
Exam Name: SUN (Sun Certified Associate.Java Platform.Se. Exam Version 1.0)
One year free update, No help, Full refund!
Total Q&A: 242 Questions and Answers
Last Update: 2013-12-16

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NO.1 Click the Exhibit button. Which is an abstract class?
A.Cat
B.Dog
C.Rabbit
D.Mouse
Correct:D

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NO.2 Click the Exhibit button. Which two are true? (Choose two.)
A.It is valid for a Zippy to have no associated Dippy.
B.It is valid for a Dippy to have no associated Zippy.
C.Every Zippy must be associated with exactly one Dippy.
D.Every Dippy must be associated with exactly one Zippy.
E.Every Dippy must be associated with at least one Zippy.
F.It is valid for a Zippy to be associated with more than one Dippy.
Correct:A E

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NO.3 Click the Exhibit button. Which class correctly implements the interface Flyer?
A.Lark
B.Airplane
C.Penguin
D.Helicopter
Correct:B

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NO.4 Which is true?
A.All JDBC drivers are pure Java.
B.The JDBC API is included in J2SE.
C.The JDBC API is an extension of the ODBC API.
D.JDBC is used to connect to MOM (Message-Oriented Middleware) products.
Correct:B

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NO.5 Which is true?
A.A J2SE program can create no more than 10 concurrent threads.
B.The Java threading model provides equal processor time to all threads.
C.All threads created by a given Java program share the same invocation stack.
D.Threading allows GUI applications to perform lengthy calculations and respond to user events at the
same time.
Correct:D

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NO.6 What is the definition of the acronym SQL?
A.Special Query Language
B.System Query Language
C.Special Queue Language
D.System Queue Language
E.Structured Query Language
F.Structured Queue Language
Correct:E

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NO.7 Which two are true? (Choose two.)
A.J2EE includes the MIDP API.
B.J2EE application developers need J2SE.
C.J2EE includes servlet APIs and EJB APIs.
D.J2EE applications depend on web servers.
E.J2EE runs on consumer and embedded devices.
Correct:B C

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NO.8 Click the Exhibit button. Which two are true? (Choose two.)
A.Every Flurb contains a reference to itself.
B.Every Flurb is associated with exactly one Flurb.
C.There can only be one instance of the Flurb class.
D.There must always be an even number of Flurb instances.
E.A Flurb can be associated with itself, but it also could be associated with a different Flurb.
Correct:B E

SUN answers real questions   310-019 answers real questions   310-019

NO.9 Which two are characteristics of an RDBMS? (Choose two.)
A.J2EE provides a cross-platform RDBMS.
B.An RDBMS represents data using two-dimensional tables.
C.An RDBMS represents data using three-dimensional tables.
D.Business-tier applications use session beans to represent rows in an RDBMS.
E.Java technologies provide capabilities for connecting a legacy RDBMS to a web application.
Correct:B E

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NO.10 A Java programmer wants to develop a browser-based multitier application for a large bank.
Which Java edition (or editions) should be used to develop this system?
A.only J2SE
B.only J2EE
C.only J2ME
D.J2SE and J2EE
E.J2SE and J2ME
F.J2EE and J2ME
Correct:D

SUN answers real questions   310-019 answers real questions   310-019

NO.11 Which two are valid representations of operations in UML? (Choose two.)
A.- op(p : P) : P
B.+ int op(int param)
C.* op(param : int) : int
D.+ op(param : int) : int
E.public void op(int param)
Correct:A D

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NO.12 Click the Exhibit button. Which two are true? (Choose two.)
A.The diagram shows a composition relation.
B.The diagram does NOT show a composition relation.
C.A Foo instance has access to the Bar with which it is associated.
D.A Bar instance has access to the Foo with which it is associated.
E.It cannot be determined from the diagram whether instances of Foo and Bar will have access to each
other.
Correct:B D

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NO.13 Which two are true? (Choose two.)
A.SQL commands cannot be contained in servlets.
B.SQL is a web services technology used to parse large XML files.
C.SQL technology is used to access JMS queues from within EJB technology.
D.SQL commands can be written in applications that use NO Java technologies.
E.SQL allows you to modify multiple rows in a table with a single command.
Correct:D E

SUN answers real questions   310-019 answers real questions   310-019

NO.14 Which statement about threading in Java is false?
A.A thread is a special type of method.
B.The synchronized keyword is used to lock objects.
C.A thread whose execution has completed is no longer runnable.
D.Threads waiting to be executed are generally chosen for execution based on priority.
Correct:A

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NO.15 Click the Exhibit button. Which is the class name?
A.eat
B.age
C.Dog
D.bark
E.name
Correct:C

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NO.16 Which statement is true?
A.The JMS API is located in the java.jms package.
B.JMS provides interfaces to naming and directory services.
C.JMS enables an application to provide flexible, asynchronous data exchange.
D.JMS enables an application to provide tightly coupled, distributed communication.
Correct:C

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NO.17 Which is true about RMI?
A.RMI is used to create thin web clients.
B.RMI allows objects to be sent from one computer to another.
C.RMI is the Java API used for executing queries on a database.
D.RMI is used to develop applications for wireless mobile devices.
E.RMI is the transport protocol used by web servers and browsers.
Correct:B

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NO.18 Which three about JMS are true? (Choose three.)
A.JMS is the acronym for Java Mail Service.
B.JMS supports an event-oriented approach to message reception.
C.JMS supports both synchronous and asynchronous message passing.
D.JMS does NOT depend on MOM (Messaging-Oriented Middleware) products.
E.JMS provides a common way for Java programs to access an enterprise messaging system's
messages.
Correct:B C E

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NO.19 What is the purpose of JNDI?
A.to parse XML documents
B.to access native code from a Java application
C.to register Java Web Start applications with a web server
D.to access various directory services using a single interface
Correct:D

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NO.20 A Java programmer wants to develop a small application to run on mobile phones. Which Java
edition (or editions) are required to develop the application?
A.only J2SE
B.only J2EE
C.only J2ME
D.J2SE and J2EE
E.J2SE and J2ME
F.J2EE and J2ME
Correct:E

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Exam Code: 310-045
Exam Name: SUN (NetBeans Integrated Development Environment 6.1 Programmer Certified Expert Exam)
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Total Q&A: 122 Questions and Answers
Last Update: 2013-12-16

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Exam Code: 310-025
Exam Name: SUN (Sun Java Certified Programmer)
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Total Q&A: 160 Questions and Answers
Last Update: 2013-12-11

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NO.1 )
What is the decimal value of j at line 5?
A. 0
B. 1
C. 14
D. -15
E. An error at line 3 causes compilation to fail.
F. An error at line 4 causes compilation to fail.
Answer.C
2.Given.Integer i = new Integer (42); Long 1 = new Long (42); Double d = new Double (42.0); Which two
expressions evaluate to True? (Choose Two)
A. (i ==1)
B. (i == d)
C. (d == 1)
D. (i.equals (d))
E. (d.equals (i))
F. (i.equals (42))
Answer.D, E
3.Exhibit .
1. public class test (
2. private static int j = 0;
3.
4. private static boolean methodB(int k) (
5. j += k;
6. return true;
1. )
2.
3. public static void methodA(int i) {
4. boolean b.
5. b = i < 10 | methodB (4);
6. b = i < 10 || methodB (8);
7. )

SUN practice test   310-025   310-025   310-025 practice test

NO.2 Given.
1. public class test (

SUN practice test   310-025   310-025   310-025 practice test

NO.3 Given.
1. byte [] arry1, array2[];
2. byte array3 [][];
3. byte[][] array4;
If each array has been initialized, which statement will cause a compiler error?
A. Array2 = array1;
B. Array2 = array3;
C. Array2 = array4;
D. Both A and B
E. Both A and C
F. Both B and C
Answer.F

SUN practice test   310-025   310-025   310-025 practice test

NO.4

SUN practice test   310-025   310-025   310-025 practice test

NO.5 public static void main (String args[] } (

SUN practice test   310-025   310-025   310-025 practice test

NO.6 stringReplace (textString);

SUN practice test   310-025   310-025   310-025 practice test

NO.7 Given.
1. class super {
2. public float getNum() {return 3.0f;}
3. )
4.
5. public class Sub extends Super {
6.
7. )
Which method, placed at line 6, will cause a compiler error?
A. Public float getNum() {return 4.0f; }
B. Public void getNum () { }
C. Public void getNum (double d) { }
D. Public double getNum (float d) {retrun 4.0f; }
Answer.B

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NO.8 System.out.printLn (textString + textBuffer);

SUN practice test   310-025   310-025   310-025 practice test

NO.9 )

SUN practice test   310-025   310-025   310-025 practice test

NO.10 Given.
1. public class foo {
2. public static void main (String[]args) {
3. String s;
4. system.out.printIn ("s=" + s);
5. }
6. }
What is the result?
A. The code compiles and "s=" is printed.
B. The code compiles and "s=null" is printed.
C. The code does not compile because string s is not initialized.
D. The code does not compile because string s cannot be referenced.
E. The code compiles, but a NullPointerException is thrown when toString is called.
Answer.C

SUN practice test   310-025   310-025   310-025 practice test

NO.11 Exhibit.
1. class super (
2. public int I = 0;
3.
4. public super (string text) (
5. I = 1
6. )
7. )
8.
9. public class sub extends super (
10. public sub (string text) (
11. i= 2
12. )
13.
14. public static void main (straing args[]) (
15. sub sub = new sub ("Hello");
16. system.out. PrintIn(sub.i);
17. )
18. )
What is the result?
A. Compilation will fail.
B. Compilation will succeed and the program will print "0"
C. Compilation will succeed and the program will print "1"
D. Compilation will succeed and the program will print "2"
Answer.A

SUN practice test   310-025   310-025   310-025 practice test

NO.12 methodA (0);

SUN practice test   310-025   310-025   310-025 practice test

NO.13

SUN practice test   310-025   310-025   310-025 practice test

NO.14 int i = 0xFFFFFFF1;

SUN practice test   310-025   310-025   310-025 practice test

NO.15 BufferReplace (textBuffer);

SUN practice test   310-025   310-025   310-025 practice test

NO.16 Which will declare a method that forces a subclass to implement it?
A. Public double methoda();
B. Static void methoda (double d1) {}
C. Public native double methoda();
D. Abstract public void methoda();
E. Protected void methoda (double d1){}
Answer.D

SUN practice test   310-025   310-025   310-025 practice test

NO.17 )
What is the output?
Answer.JAVAJAVA
7.Exhibit.
1. public class test {
2. public static void add3 (Integer i) }
3. int val = i.intValue ( );
4. val += 3;
5. i = new Integer (val);
6. }
7.
8. public static void main (String args [ ] ) {
9. Integer i = new Integer (0);
10. add3 (i);
11. system.out.printIn (i.intValue ( ) );
12. }
13. )
What is the result?
A. Compilation will fail.
B. The program prints "0".
C. The program prints "3".
D. Compilation will succeed but an exception will be thrown at line 3.
Answer.B
8.Given.
1. public class ConstOver {
2. public ConstOver (int x, int y, int z) {
3. }
4. }
Which two overload the ConstOver constructor? (Choose Two)
A. ConstOver ( ) { }
B. Protected int ConstOver ( ) { }
C. Private ConstOver (int z, int y, byte x) { }
D. Public Object ConstOver (int x, int y, int z) { }
E. Public void ConstOver (byte x, byte y, byte z) { }
Answer.A, C
9.Given.
1. public class MethodOver {
2. public void setVar (int a, int b, float c) {
3. }
4. }
Which two overload the setVar method? (Choose Two)
A. Private void setVar (int a, float c, int b) { }
B. Protected void setVar (int a, int b, float c) { }
C. Public int setVar (int a, float c, int b) (return a;)
D. Public int setVar (int a, int b, float c) (return a;)
E. Protected float setVar (int a, int b, float c) (return c;)
Answer.A, C
10.Given.
1. class BaseClass {
2. Private float x = 1.0f ;
3. protected float getVar ( ) ( return x;)
4. }
5. class Subclass extends BaseClass (
6. private float x = 2.0f;
7. //insert code here
8. )
Which two are valid examples of method overriding? (Choose Two)
A. Float getVar ( ) { return x;}
B. Public float getVar ( ) { return x;}
C. Float double getVar ( ) { return x;}
D. Public float getVar ( ) { return x;}
E. Public float getVar (float f ) { return f;}
Answer.B, D
11.Which two demonstrate an "is a" relationship? (Choose Two)
A. public interface Person { } public class Employee extends Person { }
B. public interface Shape { } public class Employee extends Shape { }
C. public interface Color { } public class Employee extends Color { }
D. public class Species { }
public class Animal (private Species species;)
E. interface Component { } Class Container implements Component ( Private Component[ ] children;
)
Answer.D, E
12.Which statement is true?
A. An anonymous inner class may be declared as final.
B. An anonymous inner class can be declared as private.
C. An anonymous inner class can implement multiple interfaces.
D. An anonymous inner class can access final variables in any enclosing scope.
E. Construction of an instance of a static inner class requires an instance of the enclosing outer class.
Answer.D
13.Given.
1. package foo;
2.
3. public class Outer (
4. public static class Inner (
5. )
6. )
Which statement is true?
A. An instance of the Inner class can be constructed with "new Outer.Inner ()"
B. An instance of the inner class cannot be constructed outside of package foo.
C. An instance of the inner class can only be constructed from within the outer class.
D. From within the package bar, an instance of the inner class can be constructed with "new inner()"
Answer.A
14.Exhibit.
1. public class enclosingone (
2. public class insideone{}
3. )
4. public class inertest(
5. public static void main (string[]args)(
6. enclosingone eo= new enclosingone ();
7. //insert code here
8. )
9. )
Which statement at line 7 constructs an instance of the inner class?
A. InsideOnew ei= eo.new InsideOn();
B. Eo.InsideOne ei = eo.new InsideOne();
C. InsideOne ei = EnclosingOne.new InsideOne();
D. EnclosingOne.InsideOne ei = eo.new InsideOne();
Answer.D
15.Exhibit.
1. interface foo {
2. int k = 0;
3. ]
4.
5. public class test implements Foo (
6. public static void main(String args[]) (
7. int i;
8. Test test = new test ();
9. i= cert.k;
10.i= cert.k;
11.i= Foo.k;
12.)
13.)
14
What is the result?
A. Compilation succeeds.
B. An error at line 2 causes compilation to fail.
C. An error at line 9 causes compilation to fail.
D. An error at line 10 causes compilation to fail.
E. An error at line 11 causes compilation to fail.
Answer.A
16.Given.
1. //point X
2. public class foo (
3. public static void main (String[]args) throws Exception {
4. printWriter out = new PrintWriter (new
5. java.io.outputStreamWriter (System.out), true;
6. out.printIn("Hello");
7. }
8. )
Which statement at PointX on line 1 allows this code to compile and run?
A. Import java.io.PrintWriter;
B. Include java.io.PrintWriter;
C. Import java.io.OutputStreamWriter;
D. Include java.io.OutputStreamWriter;
E. No statement is needed.
Answer.A
17.Which two statements are reserved words in Java? (Choose Two)
A. Run
B. Import
C. Default
D. Implement
Answer.B, C
18.Which three are valid declarations of a float? (Choose Three)
A. Float foo = -1;
B. Float foo = 1.0;
C. Float foo = 42e1;
D. Float foo = 2.02f;
E. Float foo = 3.03d;
F. Float foo = 0x0123;
Answer.A, D, F
19.Given.
1. int index = 1;
2. boolean[] test = new Boolean[3];
3. boolean foo= test [index]; What is the result?
A. Foo has the value of 0.
B. Foo has the value of null.
C. Foo has the value of true.
D. Foo has the value of false.
E. An exception is thrown.
F. The code will not compile.
Answer.D

SUN practice test   310-025   310-025   310-025 practice test

NO.18

SUN practice test   310-025   310-025   310-025 practice test

NO.19 Exhibit.
1. public class test(
2. public int aMethod()[
3. static int i=0;
4. i++;
5. return I;
6. )
7. public static void main (String args[]){
8. test test = new test();
9. test.aMethod(); 10.int j = test.aMethod(); 11.System.out.printIn(j); 12.] 13.} What is the result?
A. Compilation will fail.
B. Compilation will succeed and the program will print "0"
C. Compilation will succeed and the program will print "1"
D. Compilation will succeed and the program will print "2"
Answer.D

SUN practice test   310-025   310-025   310-025 practice test

NO.20 Given.
1. public class test(
2. public static void main(string[]args){
3. string foo = args [1];
4. string foo = args [2];
5. string foo = args [3];
6. }
7. } And command line invocation.Java Test red green blue What is the result?
A. Baz has the value of ""
B. Baz has the value of null
C. Baz has the value of "red"
D. Baz has the value of "blue"
E. Bax has the value of "green"
F. The code does not compile.
G. The program throws an exception.
Answer.G

SUN practice test   310-025   310-025   310-025 practice test

NO.21 )
What is the result?
A. The program prints "0"
B. The program prints "4"
C. The program prints "8"
D. The program prints "12"
E. The code does not complete.
Answer.B
4.Given
1. Public class test (
2. Public static void main (String args[]) (
3. System.out.printIn (6

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Exam Code: 310-811
Exam Name: SUN (Sun Certified MySQL 5.0 Database Administrator Part II)
One year free update, No help, Full refund!
Total Q&A: 138 Questions and Answers
Last Update: 2013-12-11

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NO.1 You have been granted SELECT, INSERT and DELETE privileges on the table city in the world
database. You log in, and exercise all your privileges without any problems.
While you are still connected and doing work, the administrator removes your DELETE privileges and
informs you by mail that you can no longer delete from table city.
Being skeptical, you decided to test your privileges and realize that you still have them all. What is are the
most likely causes of this?
A. The administrator forgot to revoke your UPDATE privilege
B. The administrator forgot to revoke your SELECT privilege
C. The administrator removed the DELETE privilege by performing an UPDATE directly on the
mysql.table_priv table
D. The administrator did not execute FLUSH PRIVILEGES
Answer: CD

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NO.2 Is the following statement true or false? The username you use to connect to MySQL must be the same
as the login used to access the operating system.
A. true
B. false
Answer: B

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NO.3 Assuming that the account 'joe'@'%' does not already exist on the server, executing the statement
mysql> CREATE USER 'joe'@'%' IDENTIFIED BY 'sakila'
will have the following consequences:
A. The account 'joe'@'%' is created on the server. However, clients cannot connect using this account
until further privileges have been assigned to the account.
B. The account 'joe'@'%' is created on the server. Clients may connect to the server using this account,
but will not be able to access any databases, tables or stored routines
C. The account 'joe'@'%' is created on the server. Clients may connect to the server using this account
and execute stored routines, but will not be able to access any databases or tables
D. Nothing; there is no such command as CREATE USER
Answer: B

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NO.4 Privileges for using stored routines can be specified at the following levels:
A. Server-wide
B. Per database
C. Per routine
D. The ability to use stored procedures is not governed by the privilege system.
Answer: ABC

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NO.5 Consider the following GRANT statement:
GRANT USAGE ON *.* TO 'kofi'@'localhost' IDENTIFIED BY 'password'
What is the implications of executing that statement?
A. Kofi can access all database objects.
B. Kofi can access all his tables.
C. Kofi can display server system and status variables.
D. Kofi can grant privileges to others.
E. Kofi can access all database objects belonging to localhost.
Answer: C

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NO.6 Which of the following statements about the slow query log is true?
A. The slow query log will always contain just slow queries.
B. The slow query log may not always contain just slow queries.
C. The slow query log always logs more than just slow queries.
Answer: B

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NO.7 Which of the following best describes how the relay log works?
A. It records the times when the slave connects to the master.
B. When a slave receives a change from the master, it is recorded in the relay log first and processed
later.
C. When a slave receives a change from the master, it is processed first and then recorded in the relay
log.
Answer: B

SUN   310-811   310-811 original questions

NO.8 Given the following MyISAM table structure:
mysql> desc city;
+-------------+----------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------------+----------+------+-----+---------+----------------+
| ID | int(11) | | PRI | NULL | auto_increment |
| Name | char(35) | | | | |
| CountryCode | char(3) | | | | |
| District | char(20) | | | | |
| Population | int(11) | | MUL | 0 | |
+-------------+----------+------+-----+---------+----------------+
and the following SQL statement:
SELECT Population
FROM city
WHERE Population = 10000
ORDER BY Population
LIMIT 5;
which of the following statements best describes how MySQL optimizer executes the query?
A. The optimizer uses the primary key column ID to read the index values, then uses the index on
Population to filter the results. The optimizer will always choose to use a unique index first, then use a
secondary index if available.
B. The optimizer uses the index on the Population column to search and filter the WHERE clause. A
temporary table is used to perform a filesort on the results, and then only 5 records are returned to the
client.
C. The optimizer uses the index on the Population column to search, filter and sort the Population column,
then returns 5 records to the client. The optimizer does not need to read the data rows, and can return
values from the index only, because the index contains just integer values that form a leftmost prefix for
the key.
D. The optimizer uses the index on the Population column to search, filter and sort the Population column,
and returns 5 records to the client. The optimizer does not need to read the data rows, and can return
values from the index only because only those columns where specified in the SELECT statement.
E. The optimizer will never read data from disk, since MySQL caches both data and index in the key
buffer.
Answer: D

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NO.9 With replication, what on the master is used to send commands to the slave?
A. The relay log.
B. The binary log.
C. The SQL Thread.
Answer: B

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NO.10 Consider the following:
mysql> EXPLAIN SELECT Name FROM Country WHERE Code = 'CAN'\G
*************************** 1. row ***************************
id: 1
select_type: SIMPLE
table: Country
type: const
possible_keys: PRIMARY
key: PRIMARY
key_len: 3
ref: const
rows: 1
Extra:
Which of the following best describes the meaning of the value of the type column?
A. The table has exactly one row.
B. Several rows may be read from the table.
C. Only one row of all its rows need to be read.
Answer: C

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NO.11 Which of the following statements are required to create a key cache of 4 MB, assign the MyISAM table
world.City to it and preload the index?
A. mysql> SET GLOBAL city_cache.key_buffer_size = 4194304;mysql> CACHE INDEX world.City IN
city_cache;mysql> LOAD INDEX INTO CACHE world.City;
B. mysql> ALTER TABLE world.city KEY_CACHE = 4194304;
C. mysql> CREATE CACHE FOR world.City SIZE = 4194304;
D. It is not possible to create a key cache for a specific MyISAM table, only the global key cache can be
used.
Answer: A

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NO.12 How can stored routines be used to check for constraints or legality of incoming data?
A. They can make use of the VALIDATE DEFINER setting.
B. They can not be used to check for constraints or legality of data.
C. They can check and only perform an action if the incoming values match a specified value.
Answer: C

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NO.13 When working with stored routines, which of the following are true in regards to the effect on the
amount of data exchanged between client and server?
A. They may increase the amount of data exchanged.
B. They can help reduce the amount of data exchanged.
C. They have no effect on the amount of data exchanged.
Answer: B

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NO.14 Which of the following statements are true of how access control is based?
A. It is based off of an access control table in the mysql database.
B. It is based off of grant tables in the mysql database.
C. It is based off of an access control list stored in the data directory.
D. It is based off of an access control list stored inside the .frm files of each table.
Answer: B

SUN   310-811   310-811

NO.15 For which of the following objects can privileges be specified?
A. Host
B. Global
C. Database
D. Table
E. Column
F. Row
Answer: BCDE

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NO.16 Which of the following best describes why InnoDB tables should always have primary keys and why
they should be short?
A. Because InnoDB uses primary keys to locate tables, and shorter keys make quicker lookups.
B. Because InnoDB uses primary keys to locate table rows, and shorter keys make quicker lookups.
C. Because InnoDB stores pointers in a log to all the primary keys and shorter keys make this log smaller.
Answer: B

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NO.17 The stored function year_to_date is created by the 'root'@'localhost' account as follows:
CREATE FUNCTION year_to_date ()
RETURNS DECIMAL(10,2)
SQL SECURITY DEFINER
BEGIN
...
END;
Within the routine body, a number of calculations are made on data in the financials table and the
calculated value is returned. The only account which can access the financials table is 'root'@'localhost'.
If a client connects with the account 'joe'@'localhost' and calls the year_to_date function, what will
happen?
A. The function will always execute as if it was 'root'@'localhost' that invoked it since SQL SECURITY
DEFINER has been specified.
B. The function will not execute, as 'joe'@'localhost' does not have access to the financials table
C. The function will not execute as SQL SECURITY DEFINER has been specified. It would execute if
instead SQL SECURITY INVOKER had been specified
D. If the account 'joe'@'localhost' has the EXECUTE privilege on year_to_date, the function will complete
successfully
Answer: D

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NO.18 Consider the following query:
GRANT ALL ON world.* TO 'web'@'hostname'
What privileges would this give this user?
A. All privileges including GRANT.
B. All privileges except GRANT.
C. SELECT, INSERT, UPDATE and DELETE.
D. ALL can not be used when granting privileges.
Answer: B

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NO.19 What are reasons to prefer using GRANT and REVOKE statements over editing the privilege tables
directly?
A. Using GRANT and REVOKE allows the server to figure out the right tables and do all the appropriate
work
B. All grant tables in memory are immediately updated on GRANT and REVOKE
C. Making changes directly to the grant tables, one must remember to execute flush privileges to make
the
changes take effect
D. GRANT and REVOKE statements allow you to do more fine-grained tuning of user privileges than
does
editing the grant tables directly.
E. None of the above
Answer: BCD

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NO.20 How can the SHOW PROCESSLIST command be helpful when optimizing queries?
A. It shows if a query is using an index or not.
B. It shows how the server processes a query.
C. If checked periodically, it can reveal queries that cause other queries to hang.
D. It shows the percentage of processing power that each query is using on a server.
Answer: C

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Exam Code: 310-015
Exam Name: SUN (SUN Certified SYSTEM ADMINISTRATOR FOR SOLARIS 9 PART II)
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NO.1 What can be added to the /etc/vfstab file to automatically mount the /var directory from the NFS server
saturn onto the mount point /test during boot?
A. /var - /test nfs - yes -
B. saturn:/var - /test - yes -
C. saturn:/var - /test nfs - yes
D. saturn:/var /test nfs yes
E. saturn:/var - /test nfs - yes -
Answer: E

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NO.2 You are receiving error messages that the /lard file system is full. You check and see that it has a
large file called swapfile. Your system has more than enough swap space. You suspect that the file is in
use as swap space. Which sequence of commands confirms that the file was in use as swap space, and
helps correct the file system problem?
A. swap -r /lard/swapfile ; rm /lard/swapfile
B. swap -l ; swap -d /lard/swapfile ; rm /lard/swapfile
C. swap -l ; rm /lard/swapfile ; swap -d /lard/swapfile
D. swap -l ; swap -r /lard/swapfile ; rm /lard/swapfile
Answer: B

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NO.3 You have a system used for application development. The process app-rev23 owned by user
epiphylla terminates abnormally. Which two effects can the root user configure? (Choose two.)
A. The process app-rev23 produces no core file at all.
B. The process app-rev23 produces a core file without the string "core" appearing anywhere within the file
name.
C. The process app-rev23 produces a global core file readable by any user in a global /var/corefiles
directory.
D. The process app-rev23 produces a total of three core files, one in the current directory of the process,
one in epiphylla's home directory, and one in a global /var/corefiles directory.
Answer: AB

SUN   310-015 practice test   310-015

NO.4 The auto_home automount map is an example of which type of map?
A. xfn
B. direct
C. master
D. generic
E. indirect
Answer: E

SUN   310-015   310-015   310-015

NO.5 Under which two conditions will the automounter automatically mount resources listed in an AutoFS
direct map? (Choose two.)
A. only if the mount point has first been created
B. only if the resources are to be mounted read-only
C. only if the reference used in the direct map uses relative path names
D. only if an entry for the direct map has been added to the master map
E. only if the reference used in the direct map uses absolute path names
Answer: DE

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NO.6 You are working on a system connected to the network. You attempt to access a directory which you
know is providedto your system using NFS, and which you have not accessed for some time. Your
system displays the message: stale NFS file handle What is a possible cause of this problem?
A. The lockd daemon on the local system is no longer running.
B. The mountd daemon on the local system has out of date configuration information.
C. The automountd daemon has not been informed of changes to the automount maps.
D. The file or directory has been removed on the NFS server without the client's knowledge.
Answer: D

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NO.7 You want to automatically mount an NFS resource. You also want to mount the NFS resource so that
if the server becomes unavailable, and the client reboots, system initialization will continue without waiting
for the resource to mount.Which mount option can be added to the client's /etc/vfstab file to achieve this?
A. fg
B. ro
C. bg
D. intr
E. soft
F. hard
Answer: C

SUN certification   310-015   310-015 exam   310-015

NO.8 You have Solaris Volume Manager installed on your system and want to create your first metadevice.
What initial action must you take?
A. run a command to create the first state database
B. run a utility to add a license to enable SVM for Solaris 9
C. run a command to initialize the configuration metadevice
D. run the vxinstall utility to initialize the volume manager software for use
E. create a soft partition using the -s initialize option with the appropriate command
Answer: A

SUN   310-015   310-015 test questions

NO.9 The /etc/dfs/dfstab file on your Solaris system contains the entries: share -o log=global /export/home
share -o ro /opt/NSCPcom What is the purpose of the entry global?
A. It specifies that all NFS transactions are logged in the /var/adm/global file.
B. It specifies the tag to send to the syslogd daemon when logging the NFS share.
C. It specifies the logging configuration to use from the NFS logging configuration file.
D. It specifies the file in the /export/home directory in which to record NFS mount requests.
Answer: C

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NO.10 While configuring NIS on a system, you execute the command string:# domainname
testlab.Region.Org.COM Which two statements about this command are true? (Choose two.)
A. The server's name is testlab, and it resides in the region.org.com domain.
B. Executing this command populates the /etc/defaultdomain file with the domain name.
C. The domain name is case sensitive, and must be configured exactly as specified on this
command-line.
D. The domain name is the entire character string testlab.Region.Org.COM, and no DNS domain is
specified.
Answer: CD

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NO.11 Solaris Volume Manager offers advantages over storing data in traditional disk slices. What are two of
these advantages? (Choose two.)
A. It facilitates the rotational interleaving of data.
B. It enables the definition of disk usage patterns.
C. It offers the possibility of significant performance improvement.
D. It manages the data to ensure that disk failure does not automatically lead to data loss.
Answer: CD

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NO.12 You are working on a system connected to the network. You are attempting to access a currently
mounted NFS directory. Your system displays the message: nfs mount: host1: : NFS: Service not
responding nfs mount: retrying: /usr/share/man What can you do to solve this problem?
A. ensure that nfsd is running on the NFS server
B. ensure that mountd is running on the NFS server
C. send a HUP signal to inetd process on the NFS server
D. send a HUP signal to the rpcbind process on the NFS server
Answer: A

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NO.13 Interlace size is a tunable parameter associated with which three levels of RAID? (Choose three.)
A. RAID 0
B. RAID 1
C. RAID 5
D. RAID 0+1
Answer: ACD

SUN original questions   310-015   310-015 questions

NO.14 Which command should be used to create a file system on a virtual volume (d0) under Solaris Volume
Manager control?
A. newfs /dev/rdsk/d0
B. newfs /dev/rdsk/md/d0 C. newfs /dev/md/rdsk/d0
D. newfs -F sds /dev/rdsk/d0
Answer: C

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NO.15 You have two 50-MByte UFS file systems, one located on a single disk, and the other located on a
RAID 1 mirror. Both file systems are full. The RAID 1 mirror uses a round-robin read policy. Statistically,
which is true of the RAID 1 mirror when reading data?
A. The mirror is faster.
B. The mirror is slower.
C. Round-robin read policies are not allowed.
D. The mirror and single disk exhibit the same performance.
Answer: A

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NO.16 The default run level is 3 and the host is configured as an NFS server with valid entries in
/etc/dfs/dfstab. Which two command strings restart NFS services? (Choose two.)
A. init 6
B. pkill -HUP inetd
C. /etc/init.d/nfs.server restart
D. /etc/init.d/nfs.server stop;/etc/init.d/nfs.server start
Answer: AD

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NO.17 In which situation will Solaris Volume Manager volumes continue to function normally in the event of
the corruption of one copy of its state database?
A. Solaris Volume Manager volumes will function normally if the master copy of the state database is not
corrupted.
B. Solaris Volume Manager volumes will function normally if the copy of the state database on the boot
disk is available.
C. Solaris Volume Manager volumes will function normally if no more than a single copy of the state
database is corrupted.
D. Solaris Volume Manager volumes will function normally if more than half of the copies of the state
database are available.
Answer: D

SUN   310-015   310-015   310-015 original questions   310-015

NO.18 Which two are functions of an NFS client? (Choose two.)
A. runs the nfsd daemon
B. makes resources available over the network
C. mounts remote resources across the network
D. is configured using the /etc/dfs/dfstab file
E. mounts a remote resource and uses it as though it were local
Answer: CE

SUN demo   310-015   310-015   310-015   310-015

NO.19 An inexperienced administrator reports to you that they would like to see if a system is a functioning
native LDAPclient. You suggest that they run a command to verify that the system is configured as a
native LDAP client. Whichcommand should you suggest?
A. ldaplist
B. ldapclient -v
C. ldapadd client
D. ldapsearch client
Answer: A

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NO.20 After creating and adding additional swap space, what should you do to ensure that the swap space is
available following subsequent reboots?
A. You add it as a line entry to the /etc/vfstab file.
B. You modify the startup scripts to include a swap add command.
C. The additional swap space cannot be made available following subsequent reboots.
D. No additional steps are required because the necessary changes are made to the startup file when the
swap space is added.
Answer: A

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