Data & Comp Commu for ISNE

What is the number of cable links required for a network with 6 devices using "mesh topology"? Assume that you use full-duplex.

15

Three criteria for an effective and efficient network are:

performance,security,reliability

A walkie-talkie is an example of:

Half-duplex communication

Match the type of topology and its key advantage compared to other types.

Mesh -> secure
bus -> easy installation
ring -> easy fault isolation
star -> robust

In half-duplex communication, data can be transmitted in

One direction

Group the attributes to the type of network connection.

Point-to-point
- mesh , star and ring topology
- provides a dedicated link between two devices
- connection between remote control and the television's control system

Multi-point
- bus topology
- more than two specific devices share a single link
- ease of installation and low cost.

Match the components of data communication system by its descriptions.

a device that sends data message -> sender
data or piece of information which is to be communicated -> message
destination where finally message sent by source has arrived -> receiver
a set of rules that govern data communication. -> protocol
a medium by which data or message travels from sender to receiver -> transmission medium

What is the number of cable links required for a network with 6 devices using "star topology"?

6

Performance is inversely related to delay. Order the following applications in terms of sensitivity to delay.

Most sensitive one on top.
Surfing the internet
Sending an email