1. In which of the following flow control techniques does the source entity transmits a
frame, after reception where the receiving entity indicates its willingness to accept
another frame by sending back an acknowledgment of the frame received?
2. Which of the following flow control techniques supports the simultaneous
transmission of multiple frames over a full duplex link using sequence numbers for
acknowledgments?
a. sliding window
b. stop-and-wait
3. Which HDLC protocol element appears at the beginning and end of the frame; used
for synchronization?
4. Which HDLC protocol element contains a 16 or 32 bot cyclic redundancy check used
for error detection?
5. Which HDLC protocol element indicates the secondary station in a transmission?
6. Which HDLC protocol element contains the user data to be transmitted?
a. frame check sequence
b. address
c. flag
d. information
7. Which of the following data link control protocols is used with frame relay networks?
8. Which of the following is one of the most commonly used data link protocols for
point-to-point links and on multidrop links between a primary and multiple secondary
stations?
9. Which of the following data link control protocols is part of the IEEE 802 family of
standards for operation over LANs?
10. Which of the following data link control protocols is based on HDLC and is used
with ISDN?
11. Which of the following data link control protocols is used as part of the X.25 standard
to connect a device to a packet switched network?
a. LAPB
b. HDLC
c. LLC
d. LAPF
e. LAPD