computer networks set 3 Detailed Explanation And More Example

Question : 1

To connect networks of similar protocols ______ are used

a) Routers

b) Bridges

c) Gateways

d) Dial-up routers

e) None of these

Question : 2

Frames from one LAN can be transmitted to another LAN via the device

a) Router

b) Bridge

c) Repeater

d) Modem

e) None of these

Question : 3

Which of the following statement is incorrect?

a) Multiplexers are designed to accept data from several I/O devices and transmit a unified stream of. data on one communication tine

b) RTS/CTS is the way the terminal indicates ringing

c) RTS/CTS is the way the DTE indicates that it is ready to transmit data and the way the DCW indicates that it is ready to accept data

d) HDLC is a standard synchronous communication protocol.

Question : 4

Which of the following types of channels moves data relatively slowly?

a) narrow band channel

b) voice band channel

c) wide band channel

d) side band channel

Question : 5

A popular way to learn about computers without ever going to a classroom is called __________.

a) i-learning

b) isolated learning

c) e-learning

d) close learning

e) distance learning

Question : 6

Avalanche photodiode receivers can detect bits of transmitted data by receiving

a) 200 photons

b) 100 photons

c) 2000 photons

d) 300 photons'

e) none of the above