CCNP|CCDP Remote Access (642-821) practice questions: WAN connection speeds

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Q6. Typically, which type of WAN connection has the lowest speed?

A. Frame Relay

B. X.25

C. ISDN BRI

D. Asynchronous

Correct Answer: D

Explanation: The typical WAN link speeds for various technologies is given below:
1. Leased lines/ Frame Relay: Up to E3/T3
2. ISDN PRI: E1/T1
3. X.25, ISDN-BRI: 128 Kbps
4. Asynchronous Dial-up: Up to 56/64 Kbps.

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