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Q. What do you mean by Substitutional Ciphers?
Substitutional Ciphers
Monoalphabetic Substitution
Polyalphabetic Substitution
- Transpositional - characters retain their plaintext form but change their positions to create ciphertext.
- Text is organized into a two-dimensional table and columns are interchanged according to a key.
- Character frequencies are still preserved, however.
Q. Quality of Service - multiplicative decrease? Quality of Service The collective consequence of service performance which determines the degree of satisfaction of a
Example of transport layer are:- a) TCP is connection oriented. b) UDP is connectionless
Q. What is Domain Names ? - Full domain name is a sequence of labels separated by dots (.) - Fully competent domain name (FQDN) contains the full name of a host cis.usouthal
Virtual Private Network (VPN) adds the features of both public and private networks. It is fixed to single organization and needs public network for connectivity. These connect
what is max length of cable I can use
In FLSM subnet mask of all subnets will b same. But in FLSM it changes.
DNS cache poisoning The DNA cache poisoning generally refers to the process of maintaining or developing the false information, in the cache of DNS server. This process refers
Question 1 Explain classification of computer Network by range Question 2 Explain three major problems of Transmission lines Question 3 What is the maximum data rate of
Transparent Bridges & Learning Bridges - Builds table by examining destination as well as source address of each packet it receives - Learning bridges - If address is not
Reliable data transfer over a channel bit error rdt : 20 A more realist model of the underlying channel is one in which bits in packet may be computed. Such bit erro
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