Computer Science - Linux - Discussion

Discussion :: Linux - Section 1 (Q.No.6)


The physical layer of a network

[A]. constructs packets of data and sends them across the network
[B]. controls error detection and correction
[C]. defines the electrical characteristics of signals passed between the computer and communication devices
[D]. All of the above
[E]. None of the above

Answer: Option C


No answer description available for this question.

Pawan Tripathi said: (Apr 9, 2017)  
In the Open Systems Interconnection (OSI) model, the physical layer supports the electrical or mechanical interface to the physical medium.

For example, this layer determines how to put a stream of bits from the upper (data link) layer on to the pins for a parallel printer interface, an optical fiber transmitter, or a radio carrier.

Pawan Tripathi said: (Apr 9, 2017)  
This layer defines electrical and physical details represented as 0 or 1.

How many pins a network will contain, when the data can be transmitted or not and how the data would be synchronized?

Buganda said: (Oct 11, 2017)  
Well explained @Pawan.

Ragavi said: (Dec 22, 2017)  
Nice explanations. Thanks.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.