___
.__
is one of the five major functional units ofa computer.
(a) mouse
(b) bard-disk
(e) CD ROM
(d) Memory
2. Which two units make up the CPU?
(a) RAM and ROM (b) ALU and RAM (e) ALU andCU (d) CU and RAM
3. Which memory is users' memory?
(a) Register
(b) ROM
(c) RAM
(d) cache
4. A microcomputer usually has a CPU that is on a single chip called a
..__ .
(a) microcontroller
(b) microchip (c) microprocessor
Cd)micrologic
5. A mega byte is approximately
.
(a) lOOO characters
(b) 1000000 characters
(e) 1000 words
(d) 1000000 word
6. A nanosecond is
. (a) 10"3second
(b) 106 second(c) 10 9 seconded)
10 12 second
7. The movement afdata between a computer units and outside is called
(a) data movement
(b) Data transmission (e) data communication (d) computer network ----8. The amount of space in memory or on a disk needed to store on character is
.
(a) 1 byte (b) 8 byte (e) 1 bit
(d) 16 bits
The most common class of computer in use today is __
~_~~_
(a) microcomputer
(b) laptop
(c) desktop
(d) supercomputer
10.
computers process continuous data signals.
(a) analog
(b) digital
(c) hybrid
(d) microcomputer
11. In
computers, quantities are represented by symbols.
(a) analog (b) digital (c) hybrid
(d) mainframe
12. The software that helps the computer to manage its own internal resources is called
.
(a) Resource Manager (b) System software (c) Utility
(d) Device driver
13. The software that allow particular input or output device to communicate with the rest of the computer
system is called
(a) Translator (b) System software (c) Utility
(d) Device driver
14. A compiler is __ ~ __
. (a) a Translator (b) an operating system (c) a Utility(d) a Device driver
15. Windows Vista is _~
__
~_
(a) a Translator
(b) an operating system
(c) a Utility
(d) a Device driver
16.
software provides users' interface (a) a Translator (b) an operating system (c) a Utility
(d) a Device driver
17. Which generation of computer was based on integrated circuit technology?
(a) first
(b) second
(c) Third
(d) None of the above
18.
generation was based on transistor technology (a) first (b) second (c) Third (d) None of the ah(
19. A Text is represented in a computer in
(a) byte-pattern
(b) bite-pattel11 (;)~'ord-p;u:r~~ (d) bit-pattern
20
,_,
is a 32 bit code pattern?
(a) ASCII
(b) Extended ASCU (c) Unicode
(d) ISO
21.
is a 16 hit code pattern?
(a) ASCII
(b) Extended ASCI] (c) Unicode
(d) ISO
22.
~._is an 8 bit code pattern?
a) ASCII
(b) Extended ASCII (c) Unicode
(d) ISO
23, What is the decimal equivalent of 110112'1 (a) 5 (b) 72 (c) 27 (d)127
24. In serial transmission
flows in a series of continuous stream.
(a) bytes (b) bits
(c) packets
(d) data
25. [n asynchronous transmission
flows in continuous stream.
(a) bytes
(b) bits (c) packets
(d) data
26. A data communication system consist of the
main components
(a) 2 (h) 3 (c) 4 (d) 5
27. In what topology do all devices share a common wire to transmit and receive data?
(a) star (b) bus (c) ring (d) hybrid
28. TCP is an acronym for
. (a) transfer control protocol (b) transport control protocol
(c) Transmission Convcrter protocol (d) Transmission control protocol
29. SLIP is an acronym for
,
. (a) serial line Internet protocol (b) Serial Link Internet Protocol
(c) Serial Link Internet Path (d) Serial Line Internet Path
30, HTTP is an acronym for
. (a) Hybrid Text Transfer protocol (h) Hyper Text Transmission
Protocol (c) Hybrid Text Transmission protocol
(d) Hyper Text transfer Protocol
31. What is the binary equivalence of the decimal number 137?
(a) 000100110111
(b) 10010001
(e) 10001001
(d) none of the above
32. What is the BCD equivalence of the decimal number 137'1
(a) 000100110111
(bIIOOIOOOI
(c) 10001001
(d) none ofthe above
33, ~Vhich ofthe,f0llowing numbers is ill standard normalised fonn? (a) 123.40xlO°
(b) 12.34x101
(c) 1.234xlO(d) O.1234xl 0
(e) nOlle of the above
34. What is the p},'o's complement represcntation of the decimal number -37 in an 8 bit system?
(a) 010t0011
(b) llOlOOIl
(c) 10101100
(d) 10101101
(e) None of the ahove
35, The information to be communicated in a data communications system is the
(a) protocol
(b) medium
(c) message
(d) transmission
36. Frequency of failure and network recovery time after a failure are measures of the following
(a) p~rformanc~
(b) Reliability (c) Security
(d) Feasibility
37. An unauthoriscd us~r is a network
Issue
(a) Performance
(b) Reliability~- (c) security
(d) All of the above
38. Which topology requires a ccntral controller? (a) Mesh
(b) star
(e) Bus
(d) Ring
39. Which topology requires a multipoint connection? (a) Mesh
(b) star (c) Bus
(d) Ring
40. Communication between a computer and a monitor involves
.
(a) simplex
(b) Half-duplex
(c) Full~Duplex
(d) Automatic
41. In a nctwork with 25 computers, which topology would require the most extensive cabling?
(a) Mesh
(b) sta;
(0) Bus
(d) Ring
42, A television broadcast is an example of
_.
transmission.
(a) simplex
(b) Half-duplex
-~)-Fl~Duplcx
(d) Automatic
43. In a
communication, more than two devices can share a single link.
(a) Point-to-Point (b) Multipoint
(c) Primary
(d) sccondmy stops all Transmission
44. A cable break in a ._)opology
stops all transmission_ (a)Mesh
(b) Bus
(c) stal
(d) Primary
45. mas is an acronym for
~
. (a) Basic Information and Output systcm
(b) Bayesian Input and output system (e) Basic Input and Output System (d) All oflhc above
46, The measure of the proportion of records that are updated in a master file on any run referred to as
(a) Volatility
(b) Hit rate
(c) trans.:lction
(d) file processing
j;;;
_~~
"' __ ~_'~U
••• ~ •••• '1•.••...•..•.••
J ••••.•! VY11I"'U••••.•••.
UIU;:, an:;
i:lUUl;U
lU
ur
UeiClCa
Iram
a lue.
(a) Volatility
(b) Hit rate
(c) transaction
(d) file processing
48. File maintenance refers to the operation of_~_~_.
(a) updating records (b) Interrogating records
(c) adding or deleting a record (d) copying records.
49. A
System provides support for sharing common data by multiple applications.
(a) computer file
(b) database
(c) electronic file
(d) data processing
50. One of the setbacks of
system is that change in data format may require re-writing all programs
that will use the changed data format.
(a) Database
(b) file
(c) network
(d) software
51. The
is software used to structure data in a database (a) structural program
(b) Database system
(c) database Management system
(d) electronic processing system
52. The Basic features of database system does not include
' (a) data independence
(b) data integrity
(c) data flexibility
(d) data redundancy
53. The
acts as the nerve centre of the computer.
(a) operating system
(b) control counter
(c) control unit
(d) motherboard
54. A banker that uses a computer for transaction processing could be referred to as
~ __.
(a) Programmer
(b) Database Administrator
(c) Computer Operator
(d) End ~ User
55. An accountant uses
software for daily transactions.
(a) Operating system (b) utility (c) application software (d) database management system
56.
software is suitable for analysis and organisation of numeric data.
(a) spreadsheet
(b) word processor
(c) Presentation graphics
(d) DBMS
57.
is used for creating slides.
(a) spreadsheet (b) word processor (c) Presentation graphics (d) DBMS
58. A common feature of a word processor is
~~
(a) spell checker
(b) formula checker
(c) grid ofrows and columns
(d) add and drop
59. Basic applications do not include _. __
. (a) word processors
(b) spreadsheets
(c) DBMS
(d) AUTOCAD
60. Browsers are
.
(a) people who browse th~-Nct
(b) Application software
(c) hardware
(d) operating systems
61.
software organise data into grid ofrows and columns.
(a) word processors
(b) spreadsheet
(c) Presentation Graphics
(d) Grid Computing
62. An e-mail address uses __
~. (a) the Internet name system
(b) the Web name system
(c) the Domain name system (d) All of the above
63. Which of the units performs the data manipulation functions?
(a) Control unit (b) Registers
(c)ALU
(d) ROM
64. BIOS is stored in
~ __ . (a) RAM
(b) ROM
(c) Hard-disk (d) cache
65. The information system that captures and process data about business routine activities is called __
~.
(a) Transaction Processing system
(b) Management Information system (c) Decision support system
(d) Expert system
66. The organisation of people, data, processes and interfaces that interact to support and improve day to day
operations in a business is called
. (a) Information system
(b) Information technology
(c) decision support system (d) None of the ahove
67. Front-office information system supports functions that reach out to _~__
. (a) customers (b) suppliers
(c) internal business operations
(d) All of the above
68. Back-office Information systems supports
. (a) customers
(b) suppliers
(c) internal business operations
(d) a and b
(e) band c
69. The first ever counting machine was the
' (a) Mark 1 (b) Abacus
(c) Babbage engine
(d)EDVAC
70. LEO mark III is a good example of the ~
computer generation. (a) first
(b) second
(e) third (d) fourth