Networking Chapter 11 Flashcards
HDLC is an acronym for _______.
High-Level Data Link Control
The shortest frame in HDLC protocol is usually the _______ frame.
supervisory
The address field of a frame in HDLC protocol contains the address of the _______ station.
secondary
The HDLC _______ field defines the beginning and end of a frame.
flag
What is present in all HDLC control fields?
P/F bit
According to the PPP transition-phase diagram, options are negotiated in the _______ state.
establishing
According to the PPP transition-phase diagram, verification of user identification occurs in the _______ state.
authenticating
In the PPP frame, the _______ field defines the contents of the data field.
protocol
In the PPP frame, the _______ field is similar to that of the U-frame in HDLC.
control
In the PPP frame, the _______ field has a value of 11111111 to indicate the broadcast address of HDLC.
address
In PPP, what is the purpose of LCP packets?
Configuration
Termination
Option negotiation
In the PPP frame, the _______ field is for error control.
FCS
For CHAP authentication, the user takes the system’s _______ and its own _______ to create a result that is then sent to the system.
challenge value; password
In byte stuffing, we need sometimes to add a (an) ___________ in the payload.
ESC byte
In bit stuffing, we sometimes need to add an extra ___________ bit in the payload.
0’s
