Technical Papers Technical Questions: Technical Questions Part I
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- A 2MB PCM (pulse code modulation) has
- 32 channels
- 30 voice channels & 1 signalling channel.
- 31 voice channels & 1 signalling channel.
- 32 channels out of which 30 voice channels, 1 signalling channel, & 1 Synchronizatio channel.
- Answer: c
- Time taken for 1 satellite hop in voice communication is
- second
- 1 seconds
- 4 seconds
- 2 seconds
- Answer: a
- Max number of satellite hops allowed in voice communication is:
- only one
- more han one
- two hops
- four hops
- Answer: c
- What is the max. Decimal number that can be accomodated in a byte.
- 128
- 256
- 255
- 512
- Answer: c
- Conditional results after execution of an instruction in a micro processor is stored in
- register
- accumulator
- flag register
- flag register part of PSW (Program Status Word)
- Answer: d
- Frequency at which VOICE is sampled is
- 4 Khz
- 8 Khz
- 16 Khz
- 64 Khz
- Answer: a
- Line of Sight is
- Straight Line
- Parabolic
- Tx & Rx should be visible to each other
- none
- Answer: c
- Purpose of PC (Program Counter) in a MicroProcessor is
- To store address of TOS (Top Of Stack)
- To store address of next instruction to be executed.
- count the number of instructions.
- to store base address of the stack.
- Answer: b
- What action is taken when the processor under execution is interrupted by a non-maskable interrupt?
- Processor serves the interrupt request after completing the execution of the current instruction.
- Processor serves the interupt request after completing the current task.
- Processor serves the interupt request immediately.
- Processor serving the interrupt request depends upon the priority of the current task under execution.
- Answer: a
- The status of the Kernel is
- task
- process
- not defined.
- none of the above:
- Answer: b
- To send a data packet using datagram, connection will be established
- before data transmission.
- connection is not established before data transmission.
- no connection is required.
- none of the above:
- Answer: c
- Word allignment is
- alligning the address to the next word boundary of the machine.
- alligning to even boundary.
- alligning to word boundary.
- none of the above:
- Answer: a
- When a āCā function call is made, the order in which parameters passed to the function are pushed into the stack is
- left to right
- right to left
- bigger variables are moved first than the smaller variales.
- smaller variables are moved first than the bigger ones.
- none of the above:
- Answer: b
- What is the type of signalling used between two exchanges?
- inband
- common channel signalling
- any of the above
- none of the above:
- Answer: a
- Buffering is
- the process of temporarily storing the data to allow for small variation in device speeds
- a method to reduce cross talks
- storage of data within transmitting medium until the receiver is ready to receive.
- a method to reduce routing overhead.
- Answer: a
- Memory allocation of variables declared in a program is
- allocated in RAM.
- allocated in ROM.
- allocated on stack.
- assigned to registers.
- Answer: c
- A software that allows a personal computer to pretend as a computer terminal is
- terminal adapter
- bulletin board
- modem
- terminal emulation
- Answer: d
- Find the output of the following program int ā¹ p, ā¹ q; p = (int ā¹) 1000; q = (int ā¹) 2000; printf ( ā% dā (q-p) ,) ; Ans: 500
- Which addressing mode is used in the following statements:
- MVI B, 55
- MOV B, A
- MOV M, A
- Answer: a
- ā¹ -232C standard is used in ________. Ans. Serial I/O
- Memory. Management in Operating Systems is done by
- Memory Management Unit
- Memory management software of the Operating System
- Kernel
- Answer: b
- What is done for a Push opertion? Ans: SP is decremented and then the value is stored.
- Binary equivalent of 52 Ans. 110100
- Hexadecimal equivalent of 3452 Ans. 72A
- Explain Just In Time Concept? Ans. Elimination of waste by purchasing manufacturing exactly when needed
- A good way of unit testing s/w program is Ans. User test
- OOT uses
Ans. Encapsulated of detect methods