Explain physical layer of osi reference model, Computer Networking

Assignment Help:

Q. Explain physical layer of Osi reference model?

- The physical layer deals among the physical characteristics of the transmission medium.

- It defines the mechanical, electrical, procedural and functional specifications for maintaining, activating and deactivating the physical link between end systems.

- Such characteristics like timing of voltage changes, voltage levels, physical data rates, maximum transmission distances, physical connectors and other similar attributes are defined by physical layer specifications.

- Instances RJ45, EIA/TIA-232 and NRZ


Related Discussions:- Explain physical layer of osi reference model

State 802.11 DSSS , 802.11 DSSS a) Direct sequence spread spectrum in a...

802.11 DSSS a) Direct sequence spread spectrum in a 2.4 GHz band b) Each bit is replaced by a sequence of bits called a chip code, implemented at the physical layer c) Se

Error control in TCP, Q. Show the Error control in TCP? Error control ...

Q. Show the Error control in TCP? Error control in TCP Detect lost segments, out-of-order segments, corrupted segments and duplicated segments Three tools: chec

What is virtual channel, What is virtual channel? Virtual channel is no...

What is virtual channel? Virtual channel is normally a connection from single source to one destination, although multicast connections are also allowed. The other name for vir

Determine the value of slow start threshold, Assuming that TCP Reno is used...

Assuming that TCP Reno is used, consider the following diagram illustrating the behaviour of congestion window, and answer the questions below. a)  What was the value of sl

Packet takes through an internetwork, What utility can you use to see the p...

What utility can you use to see the path a packet takes through an internetwork? Ans) Trace - Uses Time-To-Live (TTL) values to make messages from each router used along the pat

Link state packet - network layer and routing , Link State Packet When ...

Link State Packet When  a router floods  the network  with information about its  neighbourhood. It is said to  be advertising. The basis of this  advertising is  a short  pack

SAN, Case study on SAN Providers and Products available in the market.

Case study on SAN Providers and Products available in the market.

Define about unix systems and windows servers, What protocol can be applied...

What protocol can be applied when you need to transfer files between different platforms, such among UNIX systems and Windows servers? Use FTP (File Transfer Protocol) for file

Factors effects the quality of image of monitor, Q. Factors effects the qua...

Q. Factors effects the quality of image of monitor? Four factors effects the quality of image of monitor:   1.  Phosphor coating: This affects the colour and persistence (Th

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