What are the functions of datalink layer?

2 Data Link Layer. The data link layer is responsible for multiplexing data streams, data frame detection, medium access, and error control. It ensures reliable point-to-point and point-to-multipoint connections in a communication network.

What are the sub components of the data link layer?

The data link layer is also made up of two sublayers: the Media Access Control (MAC) sublayer — the unique identifier of a device — and the Logical Link Control (LLC) sublayer — the interface between the device and the network layer, which comes next in the OSI model.

What is datalink layer in TCP IP?

The data-link layer identifies the network protocol type of the packet, in this instance TCP/IP. The data-link layer also provides error control and “framing.” Examples of data-link layer protocols are Ethernet IEEE 802.2 framing and Point-to-Point Protocol (PPP) framing.

What is the function of data link layer briefly discuss the two sublayers of datalink layer?

Data link layer has two sub-layers: Logical Link Control: It deals with protocols, flow-control, and error control. Media Access Control: It deals with actual control of media.

What is framing in data link layer?

Framing is a function of the data link layer. It provides a way for a sender to transmit a set of bits that are meaningful to the receiver. Ethernet, token ring, frame relay, and other data link layer technologies have their own frame structures.

Which two functions are performed at the MAC sublayer of the OSI data link layer?

Which two functions are performed at the MAC sublayer of the OSI data link layer? (Choose two.) Adds Layer 2 control information to network protocol data. Places information in the frame that identifies which network layer protocol is being used for the frame.

What is the difference between datalink layer and network layer?

In OSI model Network layer is responsible for ‘source-to-destination’ delivery of a packet possibly across the multiple networks( links ),whereas the data link layer oversees the delivery of the packets btw ‘two’ systems on same network.

What are two functions supported by a data link layer protocol choose two?

The three main functions of the data link layer are to deal with transmission errors, regulate the flow of data, and provide a well-defined interface to the network layer.

What are the framing methods?

Types of Framing Framing can be of two types, fixed sized framing and variable sized framing. Here the size of the frame is fixed and so the frame length acts as delimiter of the frame. Consequently, it does not require additional boundary bits to identify the start and end of the frame.

Which two functions are performed at the MAC sublayer of the OSI data link layer to facilitate Ethernet communication choose two CCNA?

implements CSMA/CD over legacy shared half-duplex media

  • implements CSMA/CD over legacy shared half-duplex media.
  • enables IPv4 and IPv6 to utilize the same physical medium.
  • adds Ethernet control information to network protocol data.
  • handles communication between upper layer networking software and Ethernet NIC hardware.

Which two functions are performed at the MAC sublayer of the OSI data link layer quizlet?

Which two functions are performed at the MAC sublayer of the OSI data link layer? Implements a trailer to detect transmission errors. / Controls the NIC responsible for sending and receiving data on the physical medium.

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