1
GATE CSE 2016 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Which of the following is/are example(s) of stateful application layer protocols?

(i) HTTP
(ii) FTP
(iii) TCP
(iv) POP3

A
(i) and (ii) only
B
(ii) and (iii) only
C
(ii) and (iv) only
D
(iv) only
2
GATE CSE 2016 Set 1
MCQ (Single Correct Answer)
+2
-0.6
Consider that B wants to send a message m that is digitally signed to A. Let the pair of private and public keys for A and B be denoted by $$K_x^ - $$ and $$K_x^ + $$ for x = A, B, respectively. Let Kx(m) represent the operation of encrypting m with a key Kx and H(m) represent the message digest. Which one of the following indicates the CORRECT way of sending the message m along with the digital signature to A?
A
$$\left\{ {m,K_B^ + \left( {H\left( m \right)} \right)} \right\}$$
B
$$\left\{ {m,K_B^ - \left( {H\left( m \right)} \right)} \right\}$$
C
$$\left\{ {m,K_A^ - \left( {H\left( m \right)} \right)} \right\}$$
D
$$\left\{ {m,K_A^ + (m)} \right\}$$
3
GATE CSE 2016 Set 1
Numerical
+1
-0
A processor can support a maximum memory of $$4$$ $$GB,$$ where the memory is word-addressable (a word consists of two bytes). The size of the address bus of the processor is at least ___________ bits.
Your input ____
4
GATE CSE 2016 Set 1
Numerical
+2
-0
The size of the data count register of a $$DMA$$ controller is $$16$$ bits. The processor needs to transfer a file of $$29,154$$ kilobytes from disk to main memory. The memory is byte addressable. The minimum number of times the $$DMA$$ controller needs to get the control of the system bus from the processor to transfer the file from the disk to main memory is ___________.
Your input ____
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