CS601 spring 2016 assignment # 1 solution

Q ii: Which OSI layers deal with error control?
Ans: (i) Data Link Layer deals with error control. Data link layer adds reliability to physical layer by adding mechanisms to detect and retransmit lost or damaged frames. Also uses a mechanism to prevent duplication of frames. Also uses a mechanism to prevent duplication of frames.
Error Control bits are added to the form in the TRAILER.
(ii) Transport layer is also responsible for the Error Control. Error control is performed end-to-end. This layer makes sure that entire message reaches Rx Transport layer w/o error. Error can be a result of Lost, damaged or duplicated data and usually Re Tx is done.

Q iii: To ensure unauthorized use of data, it should be encrypted and decrypted during the transmission. Which OSI layer performs encryption and decryption?
Ans: Presentation Layer is concerned with Syntax and Semantics of info exchange between two systems. This Layer Encrypt, Encode and compress data and also perform Decryption, Decoding and Decompressing Data process.

Q v: What is the effect of Compression in data transmission?
Ans: Compression reduces the number of bits to be transmitted. Compression of Data becomes particularly important in transmission of multimedia such as text, audio and video.

Attached Files
.docx   CS 601 Assignment Solution.docx (Size: 11.47 KB / Downloads: 12)

Possibly Related Threads...
Thread Author Replies Views Last Post
  cs601 assignment soultion spring 2018 Syra Younas 1 139 08-04-2018, 09:42 AM
Last Post: Admin
  CS601 Assignment 2 Solution Fall 2017 Admin 1 1,888 01-14-2018, 10:21 PM
Last Post: fahadmukhtar
  CS601 Quiz 1 Screenshots Admin 0 913 11-18-2017, 05:07 PM
Last Post: Admin
  CS601 Assignment 1 Solution Fall 2017 Pakistani 0 3,001 11-03-2017, 07:50 PM
Last Post: Pakistani
  CS601 Assignment 4 Solution Admin 0 1,296 07-24-2017, 11:49 AM
Last Post: Admin
  CS601 Assignment 3 Solution Pakistani 2 889 07-13-2017, 10:57 AM
Last Post: Admin
  cs601 ansh 1 1,171 07-11-2017, 11:11 AM
Last Post: Pakistani
  CS601 Data Communication Assignment Solution Admin 2 2,500 02-07-2017, 06:00 PM
Last Post: Pakistani
  CS601 Assignment 3 Solution Admin 0 2,029 01-12-2017, 01:41 PM
Last Post: Admin
  CS601 assignment_1 solution 2016 Rubaisha(Moody Girl) 0 739 11-16-2016, 10:31 AM
Last Post: Rubaisha(Moody Girl)

Users browsing this thread:
1 Guest(s)