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Q.1. In OSI network architecture, the routing is performed by ............. ?
(1) Network layer
(2) Data link layer
(3) Transport layer
(4) Session layer
(5) None of these
Q.2. Which of the following performs modulation and demodulation ?
(1) Fiber optics
(2) Satellite
(3) Coaxial Cable
(4) Encoder/Decoder
(5) None of these
Q.3. Which is the first layer of OSI model-
(1) Physical layer
(2) Link layer
(3) Transport layer
(4) Network layer
(5) None of these
Q.4. Which of the following is not a transmission medium ?
(1) Telephones lines
(2) Coaxial cables
(3) Modem
(4) Micro wave system
(5) None of these
Q.5. What is the minimum number of wires needed to send data over a serial communication link layer ?
(1) 1
(2) 2
(3) 4
(4) 6
(5) None of these
Q.6. The loss in signal power as light travels down the fiber is called
(1) Attenuation
(2) Interruption
(3) Scattering
(4) Propogation
(5) None of these
Q.7. Device that connect to the network without using cables is called———.
(1) Distributed
(2) Wireless
(3) Centralized
(4) Open source
(5) None of these
Q.8. The most important and powerful computer are typically____.
(1) Desktop
(2) Network client
(3) Network server
(4) Networkstation
(5) Super computer
Q.9. Example of connectivity is_______.
(1) Internet
(2) Floppy disk
(3) Powercord
(4) Data
(5) None of these
Q.10. Which of the following has highest complex interconnection ?
(1) Bus
(2) Ring
(3) Star
(4) Mesh
(5) None of these
ANSWERS
Q.1. (1) Network layer
Q.2. (5) None of these
Q.3. (1) Physical layer
Q.4. (3) Modem
Q.5. (2) 2
Q.6. (1) Attenuation
Q.7. (2) Wireless
Q.8. (5) Super computer
Q.9. (1) Internet is example of connectivity.
Q.10. (4) Mesh
