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Which WAN encapsulations can be configured on an asynchronous serial connection?
1. PPP
2. ATM
3. HDLC
4. SDLC
5. Frame Relay

A. 1 and 2

B. 2 and 4

C. 3, 4 and 5

D. All of the above

Answer: Option A

Solution(By Examveda Team)

Please do not freak out because ATM is an answer to this question. ATM is not covered in depth on the CCNA exam. PPP is mostly used for dial-up (async) services, but ATM could be used as well, though it typically is not used anymore since PPP is so efficient.

This Question Belongs to Networking >> Wide Area Networks

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