GATE CSE 2015 Set 1 | GATE CSE Year Wise Previous Years Questions

GATE CSE 2015 Set 1

MCQ (Single Correct Answer)

-0.3

Which one of the following is TRUE at any valid state in shift-reduce parsing?

Viable prefixes appear only at the bottom of the stack and not inside

Viable prefixes appear only at the top of the stack and not inside

The stack contains only a set of viable prefixes

The stack never contains viable prefixes

GATE CSE 2015 Set 1

MCQ (Single Correct Answer)

-0.3

Which one of the following fields of an IP header is NOT modified by a typical IP router?

Checksum

Source address

Time to Live (TTL)

Length

GATE CSE 2015 Set 1

MCQ (Single Correct Answer)

-0.3

Suppose that everyone in a group of N people wants to communicate secretly with the N - 1 others using symmetric key cryptographic system. The communication between any two persons should not be decodable by the others in the group. The number of keys required in the system as a whole to satisfy the confidentiality requirement is

N(N - 1)

$${{N(N - 1)} \over 2}$$

(N - 1)²

GATE CSE 2015 Set 1

MCQ (Single Correct Answer)

-0.3

In one of the pairs of protocols given below, both the protocols can use multiple TCP connections between the same client and the server. Which one is that?

HTTP, FTP

HTTP, TELNET

FTP, SMTP

HTTP, SMTP

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