1
GATE CSE 2009
MCQ (Single Correct Answer)
+2
-0.6
Frames of 1000 bits are sent over a 106 bps duplex link between two hosts. The propagation time is 25 ms. Frames are to be transmitted into this link to maximally pack them in transit (within the link).
What is the minimum number of bits (I) that will be required to represent the sequence numbers distinctly? Assume that no time gap needs to be given between transmission of two frames.
A
I = 2
B
I = 3
C
I = 4
D
I = 5
2
GATE CSE 2009
MCQ (Single Correct Answer)
+2
-0.6
Let G(x) be the generator polynomial used for CRC checking. What is the condition that should be satisfied by G(x) to detect odd number of bits in error?
A
G(x) contains more than two terms
B
G(x) does not divide 1 + xk, for any k not exceeding the frame length
C
1 + x is a factor of G(x)
D
G(x) has an odd number of terms
3
GATE CSE 2009
MCQ (Single Correct Answer)
+1
-0.3
A $$CPU$$ generally handles an interrupt by executing an interrupt service routine
A
as soon as an interrupt is raised
B
by checking the interrupt register at the end of fetch cycle
C
by checking the interrupt register after finishing the execution of the current instruction
D
by checking the interrupt register at fixed time intervals.
4
GATE CSE 2009
MCQ (Single Correct Answer)
+1
-0.3
How many $$32k$$ x $$1$$ $$RAM$$ chips are needed to provide a memory capacity of $$256$$ $$K$$-bytes?
A
$$8$$
B
$$32$$
C
$$64$$
D
$$128$$