lab 9

A communication protocol is defined as :

• A set of instructions and programming language.

• A set of rules to govern the data communication between the two entities.

• A set of network devices that are used to connect hosts.

• All of the above.

Which of these is not a guided media?

• Fiber optical cable

• Coaxial cable

• Wireless LAN

• Copper wire

Which among the following network topologies has the highest transmission speed?

• Local Area Network

  (LAN)

• Wide Area Network

  (WAN)

• Personal Area Network

  (PAN)

• Metropolitan Area Network

  (MAN)

Bluetooth is an example of:

• Wide Area Network

  (WAN)

• Local Area Network

  (LAN)

• Metropolitan Area Network

  (MAN)

• Personal Area Network

  (PAN)

In full duplex data transmission, both the sender and the receiver ______

• Can send or receive data one at a time

• Can receive and send data simultaneously

• Can do one way data transmission only

• Cannot do one way data transmission only

Communication circuits that transmit data in both directions but not at the same time are operating in ______

• simplex mode

• asynchronous mode

• Full-Duplex mode

• Half-Duplex mode

How many types of twisted pairs are there?

• One

• Two

• Three

• Four

Which of the following topologies has the highest reliability

• Star Topology

• Mesh Topology

• Ring Topology

• Bus Topology

The communication in simplex data flow is always __________

• Uni-directional

• Multi-directional

• Bi-directional

• None of the above

___________ is an example of half-duplex data flow

• Walkie-Talkies

• Keyboards

• Telephones

• None of the above