18 Questions
What is the purpose of the flag field in a HDLC frame?
To mark the beginning and the end of the frame
What type of communications is HDLC applicable for?
Both point-to-point and multipoint
What is the minimum size of the address field in a HDLC frame?
1 byte
What is the purpose of the FCS field in a HDLC frame?
To detect errors in the frame
How many fields can a HDLC frame contain?
6
What is the orientation of the HDLC protocol?
Bit-oriented
What is the primary function of ARP in a network?
To map IP addresses to MAC addresses
Which type of channel partitioning allocates a specific time slot to each node for transmission?
TDMA
What is the purpose of a CRC field in a data transmission protocol?
To detect errors in data transmission
Which protocol is used to carry network data of any network layer protocol at the same time?
PPP
What is the primary characteristic of a Random Access protocol?
Nodes contend for access to the channel
Which protocol is used to limit the amount of data sent between the sender and receiver?
SPN
What is a characteristic of TDMA in digital cellular telephone and mobile radio communication?
Unused slots go idle
What happens when two or more transmitting nodes send in the same time in Random Access protocols?
There is a chance of collision
Which MAC protocol is typically used with 'dumb' slave devices?
Polling
What is a method of 'recovery' in CSMA/CD protocol?
Transmission is retried after a collision
What is a characteristic of FDMA?
Channel spectrum divided into frequency bands
What is the purpose of Token Passing in MAC protocols?
To allow nodes to take turns in transmitting
Test your knowledge of data link protocols, including simplex protocols, sliding window protocols, and error control mechanisms.
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