Chapter 4 Flashcards

1
Q

The maximum average data rate that a service provider guarantees to a customer is known as the ?

A

CIR: Commited Information rate

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2
Q

What are three mechanisms used by Frame Relay to reduce network overhead caused by congestion?

A

BECN, FECN, DE

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3
Q

The encapsulation frame-relay ietf command enables Frame Relay and supports?

A

multivendor devices:

the router can communicate with a non-cisco Frame Relay Switch

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4
Q

A router in a Frame Relay network needs to forward a message received from a host. What two methods does the router use to identify the correct VC to forward the message?

A

The router searches Inverse ARP tables for maps of DLCIs to IP addresses.
**
A table of static mappings can be searched.

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5
Q

Which two functions are provided by the Local Management Interface (LMI) that is used in Frame Relay networks?

A

exchange of information about the status of virtual circuits and simple flow control

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6
Q

Why would a customer request a Frame Relay circuit with a CIR of zero?

A

to have a link with reduced costs

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7
Q

When would the multipoint keyword be used in Frame Relay PVCs configuration

A

when participating routers are in the same subnet

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