Briefly explain the services provided by the data link layer. ( ii ) Identify the two sub
Question:
Briefly explain the services provided by the data link layer.
ii Identify the two sublayers of the data link layer and state function of each in data transmission.
iii Given the MAC address of a computer as c:::ca:cf: Identify the organisational Unique identifier OUI and the Network Interface Card Specific Number.
iv Why is an ARP query sent within a broadcast frame? Why is an ARP response sent within a frame with a specific destination MAC address?
The following figure is a wireshark packet capture of an ARP. Explain each field of the packet.
v Distinguish between Single bit and Burst Error and state any four methods used to detect transmission errors.
vi What is humming distance and what role does it play in data transmission.
vii Given a data coding scheme with the dataword and the corresponding codewords as shown the table below. Determine the maximum number of bits error the scheme can detect.
viii A category of error detecting and correcting code, called the Hamming code, is a code in which dmin This code can detect up to two errors or correct one single error In this code, the values of n k and r are related as: n r and k n r Find the number of bits in the dataword and the codewords if r is