Which two functions or operations are performed by the MAC sublayer? (Choose two.)It is responsible for Media Access Control.It handles communication between upper and lower layers.It performs the function of NIC driver software.It adds control information to network protocol layer data.It adds a header and trailer to form an OSI Layer 2 PDU.Navigation Bar
Question
Which two functions or operations are performed by the MAC sublayer? (Choose two.)It is responsible for Media Access Control.It handles communication between upper and lower layers.It performs the function of NIC driver software.It adds control information to network protocol layer data.It adds a header and trailer to form an OSI Layer 2 PDU.Navigation Bar
Solution
The two functions or operations performed by the MAC (Media Access Control) sublayer are:
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It is responsible for Media Access Control: The MAC sublayer controls how a computer on the network gains access to the data and permission to transmit it. It uses protocols to prevent collisions and to permit retransmission in case of lost data.
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It adds a header and trailer to form an OSI Layer 2 PDU: The MAC sublayer adds control information (like source and destination MAC addresses) to the network layer data. This process forms a PDU (Protocol Data Unit) for the OSI Layer 2, also known as a frame. The header contains information for the receiving device, while the trailer allows the receiving device to determine when a message is finished.
Similar Questions
Which two functions are performed at the MAC sublayer of the OSI data link layer? (Choose two.)Please select 2 correct answersGroup of answer choicesImplements a trailer to detect transmission errors.Controls the NIC responsible for sending and receiving data on the physical medium.Adds Layer 2 control information to network protocol data.Enables IPv4 and IPv6 to utilize the same network interface and media.Places information in the frame that identifies which network layer protocol is being used for the frame.
What is the function of a Layer 2 switch?A. Determines which interface is used to forward a frame based on the destinationMAC addressB. Forwards data based on logical addressingC. Duplicates the electrical signal of each frame to every portD. Learns the port assigned to a host by examining the destination MAC address
Which two functions are performed at the LLC sublayer of the OSI data link layer? (Choose two.)
MAC Sublayer
Give the purpose of layering. Which layer implementsthe node channel connection in OSI layeredarchitecture?
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