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PPSC Lecturer Recruitment 2015 Computer science Important Mcqs from Past Papers for Lecturer Test Preparation 2015

PPSC Lecturer Recruitment 2015 Computer science Important  Mcqs from Past Papers for Lecturer Test Preparation 2015

During the program execution, temporary/intermediate values are stored in _____________.
a. Registers
b. Peripherals
c. LAN
d. None of these

12. The objects can be inherited by _____________.
a. A single object only
b. Multiple objects
c. Both (a) and (b)
d. Either (a) or (a)

13. The operating system may perform _____________ operation to manage the memory while running a large program.
a. Sorting
b. Scheduling
c. Paging
d. None of these

14. When the LAN is arranged in such a way that each computer is connected directly to the HUB the configuration can be termed as _____________ network.
a. Bus
b. Star
c. Ring
d. None of these

15. To communicate with other computers over a telephone line the computer must have _____________ installed.
a. Telephone set
b. Modem
c. LAN Card
d. None of these

16. When each item of data in a database is directly linked with every other item of data, the database is called _____________.
a. Relational
b. Hierarchical
c. Network
d. None of these

17. _____________ is the most efficient method to reduce the duplication of data.
a. Duplication
c. Normalisation
c. Empty fields
d. None of these

18. The _____________ operation changes the coordinate values of objects being displayed.
a. Transformation
b. Windowing
c. Both (a) and (b)
d. None of these

19. A linear sequential software development model is also referred to as ____________ .
a. Prototype Model
b. RAD Model
c. Spiral Model
d. None of these

20. State Transition Diagram gives information of ___________.
a. Data Flow
b. Entry Relationship
c. Control Flow
d. None of these
State Transition Diagram gives information of
(a) Prototype Model
(b) RAD Model
(c) Spiral Model
(d) None of these

(12) The concept of meaning represented by an algorithm is known as its:
(a) Control Structure
(b) Sequence
(c) Semantics
(d) Syntax

(13) Each cell of memory is numbered and that number is referred to as the cell’s
(a) Block
(b) Identity
(c) Address
(d) Size

(14) Main memory is called RAM because
(a) It is volatile, like a ram’s temper.
(b) The computer starts at address 0 and reads every byte until it reaches the correct address.
(c) It can Read all memory
(d) The memory is accessible randomly

(15) To use internet, the computer must have
(a) Telephone
(b) Modem
(c) ISP Connection
(d) All of the above
What is the long form of ‘CMOS’?
(a) Complimentary Metal Oxide Semiconductor
(b) Complex Metal Oxide Semiconductor
(c) Controller Metal Oxide Semiconductor
(d) Complimentary Metal Oxide Sets.

(12) What is a Y-Connector? ‘
(a) A’Y-Shaped splitter cable that divides a source input into two output signals.
(b) A Y-Shaped splitter connector that divides a source input into two output signals.
(c) A Y-Shaped splitter card that divides’a source input into two output signals.
(d) None of the above.

(13) What do you mean by IBM-Compatible’?
(a) A computer that has a processor that is compatible vvith the original IBM PC.
(b) A computer that has a processor that is similar to original IBM PC
(c) A computer that has a casing that is similar original IBM PC.
(d) None of the above

(14) What do you mean by “virtual? Select’all that apply:
(a) In general, it distinguishes something that is merely conceptual from something that has physical reality,
(b) Real
(c) Not real.
(d) None of the above

(15) Select correct statement describing a term ‘stateless’?
(a) Having all information about what occurred previously
(b) Having some information aboot what occurred previously
(c) Having no information about what occurred previously
(d) Having new information about what occurred previously
When all access and processing is done in one location, a computer system is said to be
(a) networked
(b) distributed
(c) centralized
(d) linked

(ii) Tools to change PROM chips, called
(a) chip kits
(b) RAM burners
(c) PROM burners
(d) none of
these

(iii) The type of modulation that changes the height of the single is called (a) frequency
(b) phase
(c) amplitude
(d) prophase

(iv) A connection for similar network:
(a) satellite
(b) bridge
(c) gateway
(d) fax

(v) The technology whereby part of the program is stored on disk and is brought into memory for execution as needed is called
(a) memory allocation
(b) virtual storage
(c) interrupts
(d) prioritized memory
The processor’s components are synchronized by:
a. Instructions
b. Data
c. Information
d. Clock pulses
7) External devices are linked to a small computer system through:
a. Channels
b. Control units
c. Plugs
d. interfaces
8) Data on disk are recorded on a series of concentric circle called:
a. Sectors
b. Cylinders
c. Blocks
d. Tracks

9) The simplest data structure is a:
a. File
b. List
c. Record
d. Array

10) Several computers linked by communication lines for a:
a. Network
b. Distributed system
c. Time share system
d. Ring

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