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

Central processing unit - computer architecture, Central processing unit (C...

Central processing unit (CPU) : The part of the computer which executes program instructions is known as the processor or central processing unit (CPU). CPU is over single ele

Mips simulator: testing, Your code will be tested using a command script. T...

Your code will be tested using a command script. The script is available on Blackboard in the archive MIPSimTest.zip. It contains a ReadMe file that explains how to run the script

Transition table for sequential circuits, sovling questions on transition t...

sovling questions on transition table for sequential circuits

Distinguish between ROM, Distinguish between ROM, PROM, EPROM, EEPROM. ...

Distinguish between ROM, PROM, EPROM, EEPROM. Ans: ROM: It also called Read Only Memory is a Permanent Memory. The data is permanently stored and cannot be changed in Perm

Why echo suppressor is detrimental to full duplex operation, Echo suppresso...

Echo suppressor is detrimental to full duplex operation because? This disables one of the two pairs in a four-wire trunk line while a signal is detected upon another pair.

What is cgi, CGI stands for Common Gateway Interface, and is a mechanism by...

CGI stands for Common Gateway Interface, and is a mechanism by which a browser is permitted to communicate with programs running on a server. If you look at every word in turn it m

Describe about the database marketing application of olap, Database marketi...

Database marketing tool or application helps a user or marketing professional in determining the right tool or plan for his valuable add campaign. This tool haves data from all sou

Find the minimum sop and pos expression, Q.  Find the minimum SOP and POS e...

Q.  Find the minimum SOP and POS expression for the following functions using K- Map and realize the expression using appropriate gates. Also realize SOP form using NAND-to-NAND ga

C++, What are virtual Functions

What are virtual Functions

How the information should be retrieved from the database, In a report with...

In a report with an LDB attribute, you do not have to explain how the information should be retrieved from the database tables, but only how the data should be shown on the screen.

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