Computer Knowledge For RBI Assistant Exam
1. The most common communications devices all use __________ transmission, a continuous electrical signal in the form of a wave.
(1) analog
(2) digital
(3) automatic
(4) all
(5) None of these
Ans. (1) Analog Transmission
2. __________ cards and internal modems have given portable computers full connectivity capability outside the constraints of an office.
(1) Graphics
(2) PC
(3) Router
(4) Video
(5) Micro-SD
Ans. (2) PC card
3. A (n) __________ adapter can move data at 128,000 bps, more than double a standard modem.
(1) fax
(2) Dial-Up
(3) Telephone modem
(4) ISDN
(5) None of these
Ans. (4) ISDN adapter
4. The __________ modem uses the coaxial television cables that are already in place without interrupting normal cable TV reception.
(1) cellular
(2) computer
(3) Telephone
(4) Fax
(5) cable
Ans. (5) Cable modem
5. A popular communications medium is __________ transmission, which uses line-of-sight transmission of data signals through the atmosphere.
(1) fiber optics
(2) microwave
(3) Twisted pair cable
(4) Unshielded Twisted pair cable
(5) Co-axial
Ans. (2) Microwave Transmission
6. A __________ is a set of rules for the exchange of data between a terminal and a computer or between two computers.
(1) protocol
(2) standard
(3) Program
(4) Network
(5) None of these
Ans. (1) A Protocol is a set of rules for the exchange of data between a terminal and a computer or between two computers.
7. A __________ network has a central (hub) computer that is responsible for managing the network
(1) ring
(2) star
(3) tree
(4) bus
(5) mesh
Ans. (2) A star network has a central (hub) computer that is responsible for managing the network.
8. A __________ card connects each computer to the wiring in the network.
(1) PC interface
(2) network interface
(3) Wire interface
(4) All
(5) None of these
Ans. (2) A Network Interface card connects each computer to the wiring in the network.
9. Wi-Fi uses the IEEE ________wireless networking standard.
(1) 802.11
(2) 803
(3) 802.7
(4) 802.6
(5) 803.11
Ans. (1) IEEE 802.11
10. A combinational logic circuit which sends data coming from a single source to two or more separate destinations is _______.
(1) Decoder
(2) Encoder
(3) Multiplexer
(4) Simplex
(5) Demultiplexer
Ans. (5) Demultiplexer
