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Questions and Answers
What is the primary purpose of the Network Access Layer in the OSI model?
What is the primary purpose of the Network Access Layer in the OSI model?
- Error-free transfer of data frames
- Routing and congestion control
- Multiplexing and demultiplexing
- Providing logical addressing (correct)
What is the function of the LLC sublayer in the OSI model?
What is the function of the LLC sublayer in the OSI model?
- Multiplexing and demultiplexing (correct)
- Routing and congestion control
- Providing logical addressing
- Error-free transfer of data frames
What is the primary function of the MAC sublayer in the OSI model?
What is the primary function of the MAC sublayer in the OSI model?
- Logical addressing
- Routing and congestion control
- Error-free transfer of data frames
- Media access control (correct)
What is the purpose of the padding field in an Ethernet frame?
What is the purpose of the padding field in an Ethernet frame?
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What is the purpose of the CRC (Cyclic Redundancy Check) in an Ethernet frame?
What is the purpose of the CRC (Cyclic Redundancy Check) in an Ethernet frame?
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Study Notes
Network Access Layer (OSI Model)
- Provides services to allow data to be transmitted between devices on the same network
- Routes data between devices on different networks
- Defines how devices access the network and how data is framed
LLC Sublayer (OSI Model)
- Provides error-checking and correction capabilities
- Manages multiplexing, allowing multiple devices to share the same network
- Establishes and terminates connections between devices
MAC Sublayer (OSI Model)
- Manages access to the network, ensuring devices take turns transmitting data
- Provides addressing and routing functions at the data link layer
- Converts logical addresses into physical addresses
Ethernet Frame Components
- Padding field: Ensures that the minimum frame size is met, adding extra bytes if necessary
- CRC (Cyclic Redundancy Check): Verifies the integrity of the data by detecting errors during transmission
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Description
Quiz on OSI model's Network Access Layer, LLC sublayer, MAC sublayer, Ethernet frame's padding field, and CRC. Test your knowledge of computer networks and data transmission.
