Zainul (FInal 2)

In IEEE standards, 802.5 is also called?

• (A) Ithernet

• (B) Token Bus

• (C) Wireless Token Area Network

• (D) Token Ring

Which of the following is an advantage of using fiber optic data transmission?

• Resistant to data theft

• Fast data transmission rate

• Lowest noise level

• All the answers are true

In the layer hierarchy when the data packet passes through the upper layers to the lower layers, the headers are _____

• Added

• Removed

• Rearranged

• Changed

The first network is called ____

• CNNET

• NSFNET

• ASAPNET

• ARPANET

Which of the following is used for modulation and demodulation?

• Modem

• Protocols

• Gateway

• Multiplexer

Coaxil cable has conductors with ____

• a common axis

• equal resistance

• the same diameter

• none of these

What is the main difference between synchronous and asynchronous transmission?

• band width required is different

• pulse height is different

• clocking is derived from the data in synchronous transmission

• clocking is mixed with data in asynchronous transmission

The loss in signal power as light travels down the fiber is called

• propagation

• attenuation

• scattering

• absorprtion

The most flexibility how devices are wired together is provided by ___

• bus networks

• ring networks

• star networks

• T-switched networks

To connect a computer to a device in the same room, we might be likely to use A _____

• coaxial cable

• dedicated line

• ground station

• all of these