TRUE/FALSE QUESTIONS:

Quiz chapter 10/12TRUE/FALSE QUESTIONS:

1) Circuit switching is the basis for private networks built on leased lines and using on site circuit switches. _________

2) Circuit switching is very efficient in handling digital data. _________

3) With circuit switching, switching and transmission resources within the network are reserved for the exclusive use of the circuit for the duration of the connection. _________

4) Circuit switching connections do not appear to attached devices as direct connections. _________

5) Each packet contains some portion of the user data plus control information needed for proper functioning of the network. _________

6) Circuit switching and packet switching are traditional approaches to wide area network design. _________

7) Circuit switching remains one of the few effective technologies for long distance communications. _________

8) The packet switching network is a distributed collection of packet switching nodes. Because the nodes are distributed, there is a time delay between a change in status in one portion of the network and knowledge of that change elsewhere. _________

9) Analog data must be converted to digital before transmission for packet switching. _________

10) The X.25 approach results in considerable overhead. _________

FILL IN THE BLANK QUESTIONS:

1) __________ switching is used in public telephone networks.

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

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

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

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

6) The standard protocol for the interface between an end system and a packet switching network is __________ .

7) Flexibility, resource sharing, robustness, and responsiveness are all advantages of _________ switching.

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

9) Communication via circuit switching involves three phases: circuit establishment, data transfer and __________ .

10) The branches between exchanges are called __________ . They carry multiple voice frequency circuits using either FDM or synchronous TDM.