350-001 Cisco Certified Internetworking Expert Practice Exams

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350-001 Cisco Certified Internetworking Expert

Note 1: 350-001 Exhibit and all related diagrams are not shown in demo questions.
Note 2: 350-001 Answers are not shown in demo questions.
Exhibits and Answers are only provided in the Full Version.

Demo Question 2.

The EliteCertify frame relay network is shown in the display below: At which interfaces can the DE bit be set for frame relay packets flowing from CK1 to CK2 ? (Select all that apply)

A. A
B. B
C. C
D. D
E. E

Display Answer

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Answer: A, B, C, D

Explanation: The frame relay provider's backbone is shared by many users and possibly multiple services. To keep you (and everybody else) from sending more data than the network can hold, frames sent above your contracted rate may be marked as Discard Eligible (DE. . DE bits are set by the carrier network, not your equipment. They are also an indication of congestion within the frame relay network, so the DE bits are set on the interior of the carrier network, not at the provider edge to customer edge portion. If your equipment receives DE. marked frames, this indicates that data sent at this rate in the future may get dropped. This may be an early indicator of traffic rates that you didn't plan for in the design of your frame relay WAN. Frame relay equipment notices congestion when it sees frames marked with the Forward Error Correction Notification (FECN) and Backward Error Correction (BECN) bits. These merely indicate an overload within the carrier network, and are only of value in monitoring the carrier's health. The Cisco router can be configured to mark packets as DE using the "frame-relay de-list" command, making choice A also correct. Incorrect