Practice Test: Question Set - 36
1. A type of channel used to connect a central processor and peripherals which uses multipling is known as
- (A) Modem
- (B) Network
- (C) Multiplexer
- (D) All of the
above
2. A file that includes an index directory to facilitate random access is
- (A) Sequential
file
- (B) Indexed file
- (C) Random file
- (D) Serial file
3. A beam of light used to record and retrieve data on optical disks is known as
- (A) Polarized
light
- (B) Un-polarized
concentric light
- (C) Laser
- (D) Coloured light
4. A connection between two end points, either physical or logical, over which data may travel in both directions simultaneously is called _______
- (A) Dump
point
- (B) Duplex
- (C) Networks
- (D) None of the
above
5. A dot-matrix printer
- (A) Is an input
device
- (B) Is an output
device
- (C) Cannot print
alphabet
- (D) Has a speed
of 1000 cps
6. A software package to implement a data base is
- (A) System
analysis
- (B) DBMS
- (C) Database
- (D) DASD
7. The working principles of today's computers were provided by an English mathematician
- (A) Charles
Babbage
- (B) Dr.
Hollerith
- (C) Donald
Reach
- (D) None
of the above
8. A path by which communication is achieved between a central processor and other devices is called
- (A) Audit trail
- (B) Network
- (C) Bus
- (D) Channel
9. A device that stores one item of information is
- (A) Memory
element
- (B) Block
Compaction
- (C) MDR
- (D) Memory
guard
10. What is the name of the printer which prints all the A's in a line before all the B's?
- (A) Thermal
printer
- (B) Electrostatic
printer
- (C) Line
printer
- (D) Ink-jet
printer
11. The memory which is ultraviolet light erasable and electrically programmable is
- (A) ROM
- (B) PROM
- (C) RAM
- (D) EPROM
12. The Josephson tunnelling device illustrates principles associated with the advanced storage technique:
- (A) Cryogenics
- (B) CCD
- (C) EBAM
- (D) None of the
above
13. The estimation of the value of a function at a point beyond the interval in which the data lies is called known as
- (A) Interpolation
- (B) Simulation
- (C) Emulation
- (D) None of the
above
14. For a memory system, the cycle time is
- (A) Same as the
access time
- (B) Longer than
the access time
- (C) Shorter than
the access time
- (D) Sub-multiple
of the access time
15. A file containing relatively permanent data is
- (A) Random file
- (B) Transaction
file
- (C) Master file
- (D) Sequential
file
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