What is the value of 'd' after this line of code has been executed? double d=Math.round(2.5 + Math.random() );

Which of the following command options are displayed when you use the Router# show frame-relay ? command?
1. dlci
2. neighbors
3. lmi
4. pvc
5. map

A

1 only

B

2 and 4

C

3, 4 and 5

D

All of the above

what is the value of 'd' after this line of code has been executed ? double d = Math round ( 2.5 + math random () );

A

2

B

2.5

C

3

D

4

What is the value of 'd after this line of code has been executed? double d= Math. round (2.5 math. random() );

A

2

B

2.5

C

3

D

4

Consider a fully-associative data cache with 32 blocks of 64 bytes each. The cache uses LRU (Least Recently Used) replacement. Consider the following C code to sum together all of the elements of a 64 by 64 two-dimensional array of 64-bit double-precision floating point numbers. double sum (double A [64] [64] ) { int i, j ; double sum = 0 ; for (i = 0 ; i < 64; i++) for (j = 0; j < 64; j++) sum += A [i] [j] ; return sum ; } Assume all blocks in the cache are initially invalid. How many cache misses will result from the code?

A

256

B

512

C

128

D

1024

What one of the following is best practice to handle Null Pointer exception?
i) int noOfStudents = line.listStudents().count;
ii) int noOfStudents = getCountOfStudents(line);

public int getCountOfStudents(List line){if(line != null) {if(line.listOfStudents() != null) { return line.listOfStudents().size();}}throw new NullPointerException("List is empty");}

A

Option (i)

B

Option (ii)

C

Compilation Error

D

Option (ii) gives incorrect result

Which of the following commands will display the current IP addressing and the layer 1 and 2 status of an interface?
1. show version
2. show protocols
3. show interfaces
4. show controllers
5. show ip interface

A

1, 2 and 4

B

2, 3 and 5

C

3 and 4 only

D

None of the above

Which three commands can be used to check LAN connectivity problems on a router?
1. show interfaces
2. show ip route
3. tracert
4. ping
5. dns lookups

A

1 ,2 and 4

B

2 and 5

C

3 and 5

D

None of the above

To enable EIGRP, which of the following would you use?
1. Router1(config-if)# ipv6 ospf 10 area 0.0.0.0
2. Router1(config-if)# ipv6 router rip 1
3. Router1(config)# ipv6 router eigrp 10
4. Router1(config-rtr)# no shutdown
5. Router1(config-if)# ipv6 eigrp 10

A

1, 3 and 5

B

3, 4 and 5

C

1 and 3

D

5 only

You need to allow one host to be permitted to attach dynamically to each switch interface. Which two commands must you configure on your catalyst switch to meet this policy?
1. Switch (config-if) # ip access-group 10
2. Switch (config-if) # switchport port-security maximum 1
3. Switch (config) # access-list 10 permit ip host 1
4. Switch (config-if) # switchport port-security violation shutdown
5. Switch (config) # mac-address-table secure

A

1 and 3

B

2 and 4

C

2, 3 and 5

D

4 and 5

Which two of the following commands will place network 10.2.3.0/24 into area 0?
1. router eigrp 10
2. router ospf 10
3. network 10.0.0.0
4. network 10.2.3.0 0.0.0.255 area0
5. network 10.2.3.0 0.0.0.255 area 0

A

1 and 4

B

2, 4, and 5

C

2 and 5

D

3 and 4

What is the value of 'd' after this line of code has been executed? double d=Math.round(2.5 + Math.random() );

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