June 2015 - Paper 2

26:  

Match the following port numbers with their uses :

List - I

List - II

(a) 23

(i) World wide web

(b) 25

(ii) Remote Login

(c) 80

(iii) USENET news

(d) 119

(iv) Email

 

A.

(a)  (b)  (c)  (d)

(iv)   (i)  (ii)  (iii)

B.

(a)  (b)  (c)  (d)

(ii)   (i)  (iv)  (iii)

C.

(a)  (b)    (c)  (d)

(ii)   (iv)  (iii)   (i)

D.

a       b     c       d

(ii)  (iv)   (i)     (iii)

 
 

Option: D

Explanation :

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D.Krishnakumar said: (9:05pm on Monday 29th June 2015)
Option(D) is correct WWW 80Remote Login 23Usenet news 119E-mail 25

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27:  

Which of the following is not associated with the session layer ?

A.

Dialog control

B.

Token management

C.

Semantics of the information transmitted

D.

Synchronization

 
 

Option: C

Explanation :

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28:  

What is the size of the'total length' field in IPv 4 datagram ?

A.

4 bits

B.

8 bits

C.

16 bits

D.

32 bits

 
 

Option: C

Explanation :

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Nismon Rio said: (12:00am on Tuesday 30th June 2015)
16 is wrong answer of this question.. 32 is the correct answer

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29:  

Which of the following isf are restriction(s) in classless addressing ?

A.

The number of addresses needs to be a power of 2.

B.

The mask needs to be included in the address to define the block.

C.

The starting address must be divisible by lhe number of addresses in the block.

D.

All of the above

 
 

Option: D

Explanation :

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30:  

Match the following:

List - I

List - II

(a) Forward Reference Table

(i) Assembler directive

(b) Mnemonic Table

(ii) Uses array data structure

(c) Segment Register Table

(iii) Contains machine OP code

(d) EQU

(iv) Uses linked list data structure

 

A.

(a)   (b)   (c)  (d)

(ii)   (iii)  (iv)  (i)

B.

(a)   (b)   (c)  (d)

(iii)   (iv)  (ii)  (i)

C.

(a)   (b)   (c)  (d)

(iv)   (i)  (iii)  (ii)

D.

(a)   (b)   (c)  (d)

(iv)   (iii)  (ii)  (i)

 
 

Option: D

Explanation :

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