Wide Area Networks - Technical MCQs

Q1:

Which encapsulations can be configured on a serial interface?
  1. Ethernet
  2. Token Ring
  3. HDLC
  4. Frame Relay
  5. PPP

A 1 and 4

B 2 only

C 3, 4 and 5

D All of the above

ANS:C - 3, 4 and 5

Ethernet and Token Ring are LAN technologies and cannot be configured on a serial interface. PPP, HDLC, and Frame Relay are layer 2 WAN technologies that are typically configured on a serial interface.