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Exam 400-101 topic 1 question 94 discussion

Actual exam question from Cisco's 400-101
Question #: 94
Topic #: 1
[All 400-101 Questions]

Which three statements about Cisco HDLC are true? (Choose three.)

  • A. HDLC serial encapsulation provides asynchronous framing and error detection.
  • B. Serial link keepalives are maintained by SLARP.
  • C. HDLC serial encapsulation provides synchronous framing without retransmission.
  • D. HDLC frame size can be reduced with MPPC compression.
  • E. The interface is brought down after five ignored keepalives.
  • F. The interface is brought down after three ignored keepalives.
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Suggested Answer: BCF 🗳️
Cisco High-Level Data Link Controller (HDLC) is the Cisco proprietary protocol for sending data over synchronous serial links using HDLC. Cisco HDLC also provides a simple control protocol called Serial Line Address Resolution Protocol (SLARP) to maintain serial link keepalives. For each encapsulation type, a certain number of keepalives ignored by a peer triggers the serial interface to transition to the down state. For HDLC encapsulation, three ignored keepalives causes the interface to be brought down.
By default, synchronous serial lines use the High-Level Data Link Control (HDLC) serial
"Pass Any Exam. Any Time." - www.actualtests.com 99
encapsulation method, which provides the synchronous framing and error detection functions of HDLC without windowing or retransmission.
Reference:
http://www.cisco.com/c/en/us/td/docs/routers/access/800/819/software/configuration/Guide/819_S CG/6ser_conf.html#78662
by kidschannel1988 at April 3, 2025, 6:11 p.m.

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