SPSC Lecturer Computer Science Past Paper
02-02-2011

21- The operation of a staircase switch statement best explains the:

A. OR operation
B. AND operation
C. Exclusive AND operation
D. XOR operation

Answer : D. XOR operation

22- In a time-sharing operating system, when the time slot given to a process is completed, the process goes from the RUNNING state to the?

A. BLOCKED state
B. READY state
C. SUSPENDED state
D. TERMINATED state

Answer : B. READY state

23- Which of the following is a service not supported by the operating system?

A. Protection
B. Accounting
C. Compilation
D. I/O operation

Answer : C. Compilation

24- Bounded minimization is a technique for:

A. Proving whether a primitive recursive function is Turning computable or not
B. Proving whether a primitive recursive function is total function or not
C. Generating primitive recursive functions
D. Generating partial recursive functions

Answer : D. Generating partial recursive functions

25- Bipolar devices are desirable in the fabrication of which of the following components?

A. Main memory
B. Cache memory
C. Micro program memory
D. All of these

Answer : D. All of these

26- Any given Boolean expression can be implemented by using:

A. only NAND gates
B. only XOR gates
C. only OR gates
D. only AND gates

Answer : A. only NAND gates

27- Choose the correct statement:

A. A file having two dimensional layout of data elements is called as a flat file
B. Uniquely defined primary key always consist of a single field
C. The index table where files are stored in reverse order is called as the inverted list
D. All of these

Answer : C. The index table where files are stored in reverse order is called as the inverted list

28- The method of communication in which transmission takes place in the both directions, but only in one direction at a time, is called?

A. Simplex
B. Four wire circuit
C. Full duplex
D. Half duplex

Answer : D. Half duplex

29- Bit stuffing refers to?

A. Inserting a ‘0’ in user data stream to differentiate it with a flag
B. inserting a ‘0’ in flag stream to avoid ambiguity
C. Appending a nibble to the user data stream
D. Appending a nibble to the flag sequence

Answer : A. Inserting a ‘0’ in user data stream to differentiate it with a flag

30- The extent to which the software can continue to operate correctly despite the introduction of invalid input is called as?

A. Reliability
B. Robustness
C. Fault-tolerance
D. Portability

Answer : B. Robustness

31- What is stack and queue?

A. Stack and queue are also known as GIGO
B. Stack is known as LIFO and queue as FIFO
C. Stack and queue are also known as LIFO
D. Stack is known as FIFO and queue as LIFO

Answer : B. Stack is known as LIFO and queue as FIFO

32- RISC Stand For?

A. Random Instruction Set Computers
B. Random Instruction Sequence Computers
C. Reduced Instruction Set Computers
D. Really Intelligent System Compiler

Answer : C. Reduced Instruction Set Computers

33- CISC has more instruction than?

A. RISC
B. DISC
C. DVD
D. LINUX

Answer : A. RISC

34- Windows and Linux are?

A. Processors
B. Operating Systems
C. Computers
D. Compilers

Answer : B. Operating Systems

35- A modem is?

A. Modulator / Demodulator
B. Mode / Demode
C. Move/ Demove
D. Mount / Demount

Answer : A. Modulator / Demodulator

36- Which of the following is an encryption algorithm?

A. OSPF
B. ISIS
C. DES
D. BGP

Answer : C. DES

37- Choose the incorrect statement about microcomputer, minicomputers?

A. A microcomputer can be placed on a single silicon chip
B. A minicomputer can have more processing capability than a mainframe model
C. ROM chips may be used in micros to permanently store program instructions
D. A microcomputer chip performs the arithmetic logic and control functions of a microcomputer

Answer : B. A minicomputer can have more processing capability than a mainframe model

38- The branch of biology that deals with cell structure is called:

A. histology
B. cytology
C. embryology
D. paleontology

Answer : B. cytology

39- Ampere hour is a unit of:

A. quantity of electricity
B. strength of current
C. energy
D. power

Answer : A. quantity of electricity

40- Samuel Hahnemann was the father of:

A. Ancient surgery
B. Allopathy
C. Antiseptic surgery
D. homoeopathy

Answer : D. homoeopathy

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