Question 1

With ________ virtual circuits a route is defined between two endpoints and all packets for that virtual circuit follow the same route.

Accepted Answer

The answer of With ________ virtual circuits a route is...

Question 2

Communication via circuit switching involves three phases: circuit establishment,data transfer and ________.

Accepted Answer

The answer of Communication via circuit switching involves three phases:...

Question 3

In a ________ network,data entering the network from a station are routed to the destination by being switched from node to node.

Accepted Answer

Switched communication networks route data by switching it from node to node, allowing for more efficient and flexible routing compared to other types of networks such as ATM or packet switching. Therefore, C) is the best choice for the given description.

Question 4

The ________ element represents the functions and hardware needed to connect digital devices such as data processing devices and digital telephones to the network.

Accepted Answer

The network interface represents the functions and hardware needed to connect digital devices such as data processing devices and digital telephones to the network. The media gateway is used primarily for translating between different types of data networks, the digital switch is used for directing network traffic, and the control unit is used for managing network activity.

Question 5

The devices attached to a network are referred to as ________.These may be computers,terminals,telephones or other communicating devices.

Accepted Answer

The answer of The devices attached to a network are...

Question 6

In the ________ approach in packet switching each packet is treated independently with no reference to packets that have gone before.

Accepted Answer

The datagram approach in packet switching treats each packet as an independent entity with no reference to packets that have gone before. In this approach, each packet is routed individually and can take different paths through the network. This is in contrast to the virtual circuit approach, where a predetermined path is set for all packets in a particular session. Media gateway and softswitch are not relevant to this question as they pertain to different aspects of network communication.

Question 7

________ switching is used in public telephone networks.

Accepted Answer

The answer of ________ switching is used in public telephone...

Question 8

A switching center that directly supports subscribers is known as ________.

Accepted Answer

An end office is a switching center that directly supports subscribers by providing them with access to the network and allows them to make and receive calls. It is also known as a local central office or exchange.

Question 9

A ________ can convert a stream of digitized voice bits into packets.

Accepted Answer

A softswitch is a software-based device that can be used to control voice traffic on a network. It can convert digitized voice bits into packets, among other functions. Nodes are points on a network that facilitate the transmission of data, but they do not necessarily handle voice traffic specifically. LAPF (Link Access Procedure for Frame Relay) is a protocol used to control the transmission of data over frame relay networks, while virtual circuits are logical connections that can be established between two devices on a network.

Question 10

Flexibility,resource sharing,robustness,and responsiveness are all advantages of ________ switching.

Accepted Answer

The answer of Flexibility,resource sharing,robustness,and responsiveness are all advantages of...

Question 11

On a network,the switching devices whose purpose is to provide communication are called ________.These are connected to one another in some topology by transmission links.

Accepted Answer

Nodes are the devices on a network that serve as communication points. They can be computers, printers, or any other device capable of sending or receiving data. The term encompasses all such devices, making it the correct answer for the description given.

Question 12

A specific preplanned route through the network between two stations is a(n)________ virtual circuit.

Accepted Answer

The answer of A specific preplanned route through the network...

Question 13

________ switching was designed to provide a more efficient facility for bursty data traffic.The attached stations must organize their data into packets for transmission.

Accepted Answer

The answer of ________ switching was designed to provide a...

Question 14

The term ________ refers to the logical connection between two stations through the network.

Accepted Answer

The answer of The term ________ refers to the logical...

Question 15

________ switching involves the partitioning of a lower speed bit stream into pieces that share a higher speed stream with other bit streams.The individual pieces are manipulated by control logic to route data from input to output.

Accepted Answer

The description matches the characteristics of time division switching, where a low-speed bit stream is divided into pieces that are alternated in time with other bit streams to share a high-speed stream. Control logic manipulates the pieces to route data from input to output.

Question 16

Three types of delays are: propagation delay,transmission time and ________ delay.

Accepted Answer

The answer of Three types of delays are: propagation delay,transmission...

Question 17

Each station in a network connects to a node,and the collection of nodes is referred to as a ________ network.

Accepted Answer

The answer of Each station in a network connects to...

Question 18

A key distinguishing element of packet switching networks is whether the internal operation is datagram or ________.

Accepted Answer

The answer of A key distinguishing element of packet switching...

Question 19

Dynamic use of bandwidth is utilized with ________.

Accepted Answer

Dynamic use of bandwidth is a characteristic of both virtual circuit packet switching and datagram packet switching. Circuit switching does not utilize dynamic use of bandwidth, and space division switching is not a form of packet switching. Therefore, the best choice is B.

Question 20

With internal ________ each packet is treated independently and packets intended for the same destination may follow different routes.

Accepted Answer

The answer of With internal ________ each packet is treated...

Quiz 9: Wan Technology and Protocols