It provides a common link used by all the devices.

It cannot be used for microwave or satellite connections.

Its capacity of channel is reserved.

Its capacity of channel is shared.

It is a time-shared connection.

It is half part of a network.

The sender can transmit only in one direction always.

The stations can both transmit and receive but not at the same time.

The sender can transmit in both directions at the same time.

Both 1 and 3.

They are the points of connection between two devices.

They are the networks connected by switching stations.

ISP networks are connected to each other by private switching stations called peering points.

ISP networks are connected to each other by public switching stations called peering points.

Peering points provide connectivity between end users.

Data link layer divides the stream of bits in manageable data units.

It is the rate at which data is transmitted.

It is the conversion of bits into analog signal.

It is the addition of a header to the data.

It is the addition of a trailer to the data.

Each device has a dedicated point-to-point link with the neighbour.

Each device is connected to a hub.

Hub is the central controller.

Both 2 and 3

Each device is connected to every other device on the network.

Performance

Reliability

Type of connection

Mode of data transmission

Both 1 and 2

It has a dedicated link.

It has a ring-like structure.

All devices can communicate at the same time in bus topology.

It has a common bus with a cable as backbone and all devices are connected to this central cable.

It has a hub.

Representation of bits

Physical topology and line configuration

Flow control

Both 1 and 2

Access control

Its size is not limited by distance.

It can be used to connect nodes in a city or town.

It is used to connect nodes across continents.

LAN is a network used to connect devices within an office building, home or any similar-size network.

Options 1 and 4 are correct.

processing the delivery

segmentation and reassembly

routing

logical addressing

both 1 and 2

Two or more devices can send and receive data.

It is a protocol.

It is a topology.

It is a network model.

It is a mode in which communication is unidirectional as a one-way street.

Accuracy

Timeliness

Delivery

Variation in packet arrival time

Efficiency

a structure or format of data

timing of data

meaning of each section of bits

speed of data

route of data

They provide service to the server.

They provide service to the regional ISP.

They provide direct service to the end user.

Each local ISP is connected to a national or regional ISP.

Both 3 and 4 are correct.

The scientific, technological and economical activities

Telecommunication

Electrical engineering, electronics and radio

Computing and communications

Programming languages