Which transmission media has the highest transmission speed in a network?
a. Coaxial cable
b.Twisted pair cable
c. Optical fiber
d. Electrical cable
2. Bits can be send over guided and unguided media as analog signal by
a. Digital modulation
b. Amplitude modulation
c. Frequency modulation
d. Phase modulation
3. Loss in signal power as light travels down the fiber is called?
a. Attenuation
b. Propagation
c. Scattering
d. Interruption
4. Which of the following is not a transmission medium?
a. Telephone lines
b. Coaxial cables
c. Modem
d. Microwave systems
5. The copper wire is the example of
a. Unguided media
b. Guided media
c. Group media
d. None
6. ......... cables carry data signals in the form of light.
a. Coaxial
b. Fiber-optic
c. Twisted-pair
d. None of the above
7. A switch in a datagram network uses a routing table that is based on the ........ address.
a. Source
b. Destination
c. Local
d. None of the above
8. A local telephone network is an example of a ........... network.
a. Packet-switched
b. Circuit-switched
c. Message-switched
d. None of the above
9. In .........., there is no resource allocation for a packet.
a. Datagram switching
b. Circuit switching
c. Frame switching
d. None of the above
10. We can say that a packet switch has .......... types of components.
a. Two
b. Three
c. Four
d. None of the above
11. In ........... switching, the paths in the circuit are separated from one another spatially.
a. Time-division
b. Space-division
c. Two-dimensional
d. Three-dimensional
12. In ............., we combine signals from different sources to fit into a larger bandwidth.
a. Line coding
b. Block coding
c. Spread spectrum
d. None of the above