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Question 114.
Given:
1. public class WhileFoo {
2. public static void main(String[] args) {
3. int x = 1,y = 6;
4. while (y--) {x++;)
5. System.out.println("x="+x+"y="xy);
6. }
7. }
What is the result?
A. The output is x = 6 y = 0.
B. The output is x = 7 y = 0.
C. The output is x = 6 y = -1.
D. The output is x = 7 y = -1.
E. Compilation fail.
Answer: E
Question 115.
The current architecture has servlets making calls to EJB. The system has grown to over 200 servlets causing development and configuration problems. Because the system is still evolving, the APIs to the EJB have changed quite often. This has caused the servlet writers to adapt the new APIs every time a change is made.
Which two statements about this problem are true? (Choose two)
A. Introducing a configuration control system will fix the problem.
B. This is an example of brittle code dependencies and tight coupling.
C. This problem can be corrected by converting all entity EJB to stateless session EJB.
D. Introducing a client-side abstraction which sits between the servlet and FJB will break the tight
coupling.
E. Having the servlets communicate with EJB using JMS will prevent changing servlet code every
time an EJB API changes.
F. Introducing a session bean, in front of all EJB, which mimics the EJB APIs will prevent
changing servlet code every time an EJB API changes.
Answer: B, D
Question 116.
Given:
8. int index = 1;
9. int[] foo = new int[3];
10. int bar = foo[index];
11. int baz = bar + index;
What is the result?
A. baz has the value of 0.
B. baz has the value of 1.
C. baz has the value of 2.
D. An exception is thrown.
E. The code will not compile.
Answer: B
Question 117.
Given:
1. public interface Foo {
2. int k = 4:
3. }
Which three are equivalent to line 2? (Choose three)
A. final int k = 4:
B. public int k = 4;
C. static int k = 4;
D. private int k = 4:
E. abstract int k = 4;
F. volatile int k = 4:
G. transient int k = 4;
Answer: A, B, C
Question 118.
Given:
1. public class X {
2. public Object m() {
3. Object o = new Float(3.14F);
4. Object [] oa = new Object[1];
5. oa[0] = o;
6. o = null;
7. oa[0] = null;
8. return o;
9. }
10. }
When is the Float object, created in line 3, eligible for garbage collection?
A. Just after line 5.
B. Just after line 6.
C. Just after line 7.
D. Just after line 8 (that is, as the method returns)
Answer: C
Question 119.
Given:
1. class Super {
2. public float getNum() { return 3.of; }
3. ]
4.
5. public class Sub extends Super {
6.
7. }
Which method, places 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) { return 4.0d; }
Answer: B
Question 120.
Exhibit:
1. public class Test {
2. public static String output = "";
3.
4. public static void foo(int i) {
5. try {
6. if(I == 1) {
7. throw new Exception();
8. }
9. output += "1";
10. }
11. catch(Exception e) {
12. output += "2";
13. return;
14. }
15. finally {
16. output += "3";
17. }
18. output += "4";
19. }
20.
21. public static void main(String args[]) {
22. foo(0);
23. foo(1);
24.
25. }
26. }
What is the value of the variable output at line 24?
Answer: 13423
Question 121.
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
Question 122.
Given:
1. public class Test {
2. public static void main(String args[]) {
3. System.out.println(6 3);
4. }
5. }
What is the output?
Answer: 5
Question 123.
Given:
1. public class X {
2. public X aMethod() { return this;}
3. }
4. public class Y extends X {
5.
6. }
Which two methods can be added to the definition of class Y? (Choose two)
A. public void aMethod() {}
B. private void aMethod() {}
C. public void aMethod(String s) {}
D. private Y aMethod() { return null; }
E. public X aMethod() { return new Y(); }
Answer: C, E
Question 124.
Given:
10. int i = 0;
11. for (; i <4; i += 2) {
12. System.out.print(i + "");
13. }
14. System.out.println(i);
What is the result?
A. 0 2 4
B. 0 2 4 5
C. 0 1 2 3 4
D. Compilation fails.
E. An exception is thrown at runtime.
Answer: A
Question 125.
Which statement is true?
A. Programs will not run out of memory.
B. Objects that will never again be used are eligible for garbage collection.
C. Objects that are referred to by other objects will never be garbage collected.
D. Objects that can be reached from a live thread will never be garbage collected.
E. Objects are garbage collected immediately after the system recognizes they are eligible.
Answer: D
Question 126.
Which two cause a compiler error? (Choose two)
A. float[] = new float(3);
B. float f2[] = new float[];
C. float[] f1 = new float[3];
D. float f3[] = new float[3];
E. float f5[] = { 1.0f, 2.0f, 2.0f };
F. float f4[] = new float[] { 1.0f. 2.0f. 3.0f};
Answer: A. B
Question 127.
Which three statements are true? (Choose three)
A. The default constructor initializes method variables.
B. The default constructor has the same access as its class.
C. The default constructor invoked the no-arg constructor of the superclass.
D. If a class lacks a no-arg constructor, the compiler always creates a default constructor.
E. The compiler creates a default constructor only when there are no other constructors for the
class.
Answer: B, C, E
Question 128.
Given:
1. class TestSuper {
2. TestSuper(int i) { }
3. }
4. class TestSub extends TestSuper{ }
5. class TestAll {
6. public static void main (String [] args) {
7. new TestSub();
8. }
9. }
Which is true?
A. Compilation fails.
B. The code runs without exception.
C. An exception is thrown at line 7.
D. An exception is thrown at line 2.
Answer: A
Question 129.
Given:
11. for (int i =0; i <3; i++) {
12. switch(i) {
13. case 0: break;
14. case 1: System.out.print("one ");
15. case 2: System.out.print("two ");
16. case 3: System.out.print("three ");
17. }
18. }
19. System.out.println("done");
What is the result?
A. done
B. one two done
C. one two three done
D. one two three two three done
E. Compilation fails.
Answer: D
Question 130.
Given:
1. public class ReturnIt {
2. return Type methodA(byte x, double y) {
3. return (long)x / y * 2;
4. }
5. }
What is the narrowest valid returnType for methodA in line2?
A. int
B. byte
C. long
D. short
E. float
F. double
Answer: F
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Question 1.
True of False: A proper end-to-end QoS solution is becoming more of an issue even as more bandwidth is being made available to today's bandwidth-intensive, interactive multimedia applications.
A. True
B. False
Answer: A
Question 2.
Which of the following are examples of metrics for QoS?
A. Delay, jitter, packet loss
B. Latency, FIFO, WRED
C. Signal degradation, attenuation, line loss
D. SNR, radial CODEC inversion, latency
E. Inverse Queue Depletion, delay, packet loss
Answer: A
Question 3.
Which of the following are Ethernet SAP encapsulation types? Choose all that apply.
A. Null
B. Dot1Q
C. Q-in-Q
D. IPCP
E. BCP-Null
F. BCPdot1.q
G. Frame Relay
Answer: A, B, C
Question 4.
Which of the following are not considered a differentiator/classifier of customer traffic at layer 2 or 3 of the OSI model? Choose all that apply.
A. DSCP
B. 802.1p
C. IP Precedence
D. TCP/UDP Port numbers
E. HTML version
Answer: D, E
Question 5.
Which of the following statements are true regarding the DSCP bits? Choose 3 answers.
A. The precedence level bits define 4 Assured Forwarding Classes
B. The three least significant bits of the DSCP bits specify the drop probability
C. The 8 bits of the TOS field are used for DSCP
D. To convert DSCP to IP Precedence the three most significant bits are matched
E. DSCP provides for 64 precedence levels with 3 drop probabilities
Answer: A, B, D
Question 6.
Pick from the following list the 3 major components of the QoS features on the Alcatel-Lucent 7750 SR.
A. Virtual inflow classification
B. Real-timeQoS shaping
C. Traffic classification
D. 802.1q p-bit rate-limiting
E. Buffer memory management
F. Traffic scheduling
Answer: C, E, F
Question 7.
The IOM is responsible for which of the tasks listed below? Choose 3 answers.
A. Local processing of critical control plane functions
B. IPSec VPN hardware accelerated encryption
C. Queuing, scheduling, and buffer management
D. IP/MPLS/MAC forwarding lookup
E. Layer 2 / Layer 3 encapsulation
Answer: C, D, E
Question 8.
Which of the following statement is true with regards to Q-in-Q on the Alcatel-Lucent 7750 SR?
A. Q-in-Q defines a mechanism for encapsulating queued DSCP traffic at the provider edge
B. Q-in-Q is a new protocol thatsupercedes 802.1p priority-bit mapping in a QoS-aware network
C. The use of either the inner or outer 802.1p bits in the 802.1q frames forQoS classification can
be configured on the Alcatel-Lucent 7750 SR
D. Q-in-Q is a protocol which re-encapsulates trunked p-bits in an outer label that is mapped into
the EXP bits in an MPLS backbone
E. none of the above
Answer: C
Question 9.
Which of the following are not categories of forwarding classes on the Alcatel-Lucent 7750 SR? Choose 3 answers.
A. Real-time
B. Assured
C. Non-conforming
D. High Priority
E. Expedited
Answer: A, C, E
Question 10.
Which of the following are Trusted boundaries by default? Choose 2 answers.
A. An IES SAP
B. A VPLS SAP
C. A network port
D. A VPRN SAP
E. An access port
Answer: C, D
Question 11.
True of False. There is a default network policy applied to all router interfaces?
A. True
B. False
Answer: A
Question 12.
Which of the following are characteristics of DSCP. Choose 3 answers?
A. Part of the layer 3 header
B. A 6-bit field of which the first 3 bits indicate the IP Precedence bits
C. Specifies 8 different priorities
D. Specifies 3 precedence levels
E. Part of the layer 2 header
F. Specifies 64 different per hop behaviors
Answer: A, B, F
Question 13.
Which of the following QoS policies does not have a default policy?
A. Scheduler policies
B. Service ingress
C. Service egress
D. Network queue
E. Network
F. Slope
Answer: A
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