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WorksheetsData Link Layer Quiz
Total questions: 25
Worksheet time: 13mins
What is the primary responsibility of the Data Link Layer?
End-to-end data delivery
Node-to-node data transfer
Data encryption
Data compression
Which layer of the OSI model does the Data Link Layer correspond to?
Second Layer
First Layer
Fourth Layer
Third Layer
What is the purpose of framing in the Data Link Layer?
To encapsulate datagrams into frames
To route data
To encrypt data
To compress data
What type of addressing does the Data Link Layer use?
Hierarchical Addressing
Geographical Addressing
Physical Addressing
Logical Addressing
Which of the following is a function of the Data Link Layer?
Error detection and correction
Session management
Data encryption
Routing
What is the size of a typical MAC address?
128 bits
64 bits
48 bits
32 bits
What does flow control in the Data Link Layer prevent?
Data routing issues
Data loss due to buffer overflow
Data encryption
Data compression
Which technique is used for error detection in the Data Link Layer?
Data compression
Routing
Checksum
Data encryption
What is the main advantage of fixed-size framing?
Error correction
Simplicity
Flexibility
Efficiency
What is the purpose of bit stuffing in variable-size framing?
To mark frame boundaries
To compress data
To encrypt data
To prevent data loss
Which error detection technique uses a parity bit?
Checksum
Cyclic Redundancy Check
Parity Check
Hamming Code
What is the main function of the CSMA/CD protocol?
To compress data
To prevent data collisions
To encrypt data
To route data
In which protocol does a token circulate among stations?
CSMA/CD
Token Ring
ALOHA
FDMA
What does the term 'Hamming distance' refer to?
The length of a MAC address
The number of positions at which two codewords differ
The size of a data packet
The number of bits in a frame
Which of the following is a characteristic of TDMA?
Allows simultaneous transmission
Divides the channel into frequency bands
Uses time slots for transmission
Uses a token for access
What is the main disadvantage of the Stop-and-Wait ARQ protocol?
High efficiency
Low complexity
Increased latency
No error detection
Which protocol allows multiple frames to be sent before waiting for an acknowledgment?
Go-Back-N ARQ
Stop-and-Wait ARQ
Selective Repeat ARQ
All of the above
What is the main purpose of the sliding window protocol?
To increase data security
To encrypt data
To compress data
To allow multiple frames to be sent
What happens in the Go-Back-N ARQ protocol when an error is detected?
No frames are retransmitted
All frames from the corrupted frame onward are retransmitted
Only the corrupted frame is retransmitted
The transmission is aborted
Which of the following is NOT a type of MAC protocol?
Random Access Protocols
Controlled Access Protocols
Channelization Protocols
Data Encryption Protocols
What is the main function of the Checksum error detection technique?
To compress data
To route data
To add redundancy to data
To encrypt data
Which of the following protocols is used for error detection in Ethernet?
Cyclic Redundancy Check
Checksum
Parity Check
Hamming Code
What is the main advantage of Selective Repeat ARQ over Go-Back-N ARQ?
Simplicity
Efficiency in bandwidth usage
Lower latency
Higher error detection rate
What does the term 'polling' refer to in Controlled Access Protocols?
A token circulating among devices
Stations transmitting whenever they want
A master device asking slave devices if they have data to send
Dividing the channel into frequency bands
What is the primary function of the Data Link Layer in a network?
To route data packets
To provide error-free transmission
To manage user sessions
To manage data encryption
