17-09-2012, 11:27 AM
Technical Questions
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1. A 2MB PCM(pulse code modulation) has
a) 32 channels
b) 30 voice channels & 1 signalling channel.
c) 31 voice channels & 1 signalling channel.
d) 32 channels out of which 30 voice channels, 1 signalling channel, & 1
Synchronizatio channel.
Ans: ©
2. Time taken for 1 satellite hop in voice communication is
a) 1/2 second
b) 1 seconds
c) 4 seconds
d) 2 seconds
Ans: (a)
3. Max number of satellite hops allowed in voice communication is :
a) only one
b) more han one
c) two hops
d) four hops
Ans: ©
4. What is the max. decimal number that can be accomodated in a byte.
a) 128
b) 256
c) 255
d) 512
Ans: ©
5. Conditional results after execution of an instruction in a micro processor is stored
in
a) register
b) accumulator
c) flag register
d) flag register part of PSW(Program Status Word)
Ans: (d)
6. Frequency at which VOICE is sampled is
a) 4 Khz
b) 8 Khz
c) 16 Khz
d) 64 Khz
Ans: (a)
7. Line of Sight is
a) Straight Line
b) Parabolic
c) Tx & Rx should be visible to each other
d) none
Ans: ©
8. Purpose of PC(Program Counter) in a MicroProcessor is
a) To store address of TOS(Top Of Stack)
b) To store address of next instruction to be executed.
c) count the number of instructions.
d) to store base address of the stack.
Ans: (b)
9. What action is taken when the processor under execution is interrupted by a nonmaskable
interrupt?
a) Processor serves the interrupt request after completing the execution of the current
instruction.
b) Processor serves the interupt request after completing the current task.
c) Processor serves the interupt request immediately.
d) Processor serving the interrupt request depends upon the priority of the current task
under execution.
Ans: (a)
10. The status of the Kernel is
a) task
b) process
c) not defined.
d) none of the above.
Ans: (b)
11. To send a data packet using datagram , connection will be established
a) before data transmission.
b) connection is not established before data transmission.
c) no connection is required.
d) none of the above.
Ans: ©
12. Word allignment is
a) alligning the address to the next word boundary of the machine.
b) alligning to even boundary.
c) alligning to word boundary.
d) none of the above.
Ans: (a)
13 When a 'C' function call is made, the order in which parameters passed to the
function are pushed into the stack is
a) left to right
b) right to left
c) bigger variables are moved first than the smaller variales.
d) smaller variables are moved first than the bigger ones.
e) none of the above.
Ans: (b)