Previous Years Solved Placement Papers
- 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 the address of TOS (Top of Stack)
(B) To store the address of the next instruction to be executed
(C) To count the number of instructions
(D) To store the 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 a local exchange?
(A) +48 volts
(B) -48 volts
(C) 230 volts
(D) 110 volts
(Ans: B) - 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) - Word alignment is:
(A) Aligning the address to the next word boundary of the machine
(B) Aligning to even boundary
(C) Aligning to word boundary
(D) None of the above
(Ans: A) - 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 variables
(D) Smaller variables are moved first than the bigger ones
(E) None of the above
(Ans: B) - What is the type of signaling used between two exchanges?
(A) In-band
(B) Common channel signaling
(C) Any of the above
(D) None of the above
(Ans: A) - Buffering is:
(A) The process of temporarily storing data to allow for small variation in device speeds
(B) A method to reduce cross-talks
(C) Storage of data within the transmitting medium until the receiver is ready to receive
(D) A method to reduce routing overhead
(Ans: A) - A protocol is a set of rules governing a time sequence of events that must take place between:
(A) Peers
(B) Non-peers
(C) Allocated on stack
(D) Assigned to registers
(Ans: A) - Memory allocation of variables declared in a program is:
(A) Allocated in RAM
(B) Allocated in ROM
(C) Allocated on stack
(D) Assigned to registers
(Ans: C)