What is data link layer, Computer Engineering

Assignment Help:

Q. What is Data link layer?

Data link layer: data link layer is responsible for transmitting a group of bits between adjacent nodes. Group of bits is termed as frame. Network layer passes a data unit to data link layer and data link layer adds header information to this data unit. Data link layer performs below functions:

• Addressing: Headers and trailers are added containing physical addresses of adjacent nodes and removed on a successful delivery.

• Framing: Grouping of/bits received from network layer into manageable units termed as frame.

• Flow control: to regulate the amount of data which can be sent to the receiver.

• Media access control (MAC): who decide who can send data, when and how much.

• Synchronization: this layer also comprise bits to synchronize the timing to know the bit interval to recognize bit correctly.

• Error control: it incorporates CRC to ensure the correctness of the frame.

• Node to node delivery: it's also responsible for error-free delivery of entire packet/frame to the next adjacent node.


Related Discussions:- What is data link layer

Evaluate expression by using convention , Evaluate x = A ‾.B + C ( ) usin...

Evaluate x = A ‾.B + C ( ) using the convention A = True and B = False. Ans. Simplify given expression x = A ‾ .B + C ( ) as = A ‾ B + C (A ‾ + D ‾ ) (As = A ‾ +D ‾ usin

Linux, Explain about unix file system architecture

Explain about unix file system architecture

Interconnection network, Interconnection Network Introduction Th...

Interconnection Network Introduction This unit discusses the types and properties of interconnection networks.  In multiprocessor systems, there are multiple I/O modules

Explain the characteristics of program interpretation model, Explain the ch...

Explain the characteristics of program interpretation model. The program interpretation model characteristics are: The source program is retained into the source form it

Balanced trees and their operations, what is ment by avl tree n insertion n...

what is ment by avl tree n insertion n deletion ,2-3 tress insertion n deletion

Associative array processing, Consider that a list of record or a table is ...

Consider that a list of record or a table is stored in the memory and you wish to find some information in that particular list. E.g. the list comprises three fields as displayed b

What are conditional chain statement, What are conditional chain statement?...

What are conditional chain statement? ON CHAIN-INPUT similar to ON INPUT. The ABAP/4 module is called if any one of the fields in the chain having a value other than its in

What is typical storage hierarchy, Q. What is typical storage hierarchy? ...

Q. What is typical storage hierarchy? A typical storage hierarchy is displayed in Figure above. Though Figure shows only block diagram however it includes storage hierarchy:

Explain the processor-memory interconnection network (pmin), Processor-Memo...

Processor-Memory Interconnection Network (PMIN): It's a switch which attaches several processors to distinct memory modules. Connecting each processor to every memory module in

Explain the data dependency, Data Dependency It indicates to the situ...

Data Dependency It indicates to the situation in which two or more instructions share same data. The instructions in a program are able to be arranged based on relationship o

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd