Previous Years Solved Placement Papers
- What does the statement
int(*x[])()indicate? - Which addressing mode is used in the following statements:
(A) MVI B,55
(B) MOV B,A
(C) MOV M,A
Ans:
(A) Immediate addressing mode
(B) Register Addressing Mode
(C) Direct addressing mode
- How are parameters passed to the main function?
- What does the file
stdio.hcontain?
(A) Function definition
(B) Function declaration
(C) Both function definition & function declaration
sscanfis used for?- Memory management in operating systems is done by:
(A) Memory Management Unit
(B) Memory management software of the Operating System
(C) Kernel
(Ans: B) - 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 synchronization channel
(Ans: C) - Time taken for 1 satellite hop in voice communication is:
(A) 1/2 second
(B) 1 second
(C) 4 seconds
(D) 2 seconds
(Ans: A) - Max number of satellite hops allowed in voice communication is:
(A) Only one
(B) More than one
(C) Two hops
(D) Four hops
(Ans: C) - What is the maximum decimal number that can be accommodated in a byte?
(A) 128
(B) 256
(C) 255
(D) 512
(Ans: C) - Conditional results after execution of an instruction in a microprocessor are stored in:
(A) Register
(B) Accumulator
(C) Flag register
(D) Flag register part of PSW (Program Status Word)
(Ans: D) - Frequency at which voice is sampled is:
(A) 4 KHz
(B) 8 KHz
(C) 16 KHz
(D) 64 KHz
(Ans: A) - Line of sight is:
(A) Straight line
(B) Parabolic
(C) Tx & Rx should be visible to each other
(D) None
(Ans: C) - 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) - What action is taken when the processor under execution is interrupted by a non-maskable interrupt?
(A) Processor serves the interrupt request after completing the execution of the current instruction
(B) Processor serves the interrupt request after completing the current task
(C) Processor serves the interrupt request immediately
(D) Processor serving the interrupt request depends upon the priority of the current task under execution
(Ans: A) - The status of the Kernel is:
(A) Task
(B) Process
(C) Not defined
(D) None of the above
(Ans: B) - What is the nominal voltage required in a subscriber loop connected to the local exchange?
(A) +48 volts
(B) -48 volts
(C) 230 volts
(D) 110 volts
- To send a data packet using a 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: C)