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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.
ARP is used to search a devices MAC address given an IP address.
Computer Networks A computer networks can be defined as set of computer that interact among the individual computers sharing resources or information. Reference models
Explain how does IGRP work?
QUESTION a) National regulations require the availability of the following services for all IP to PSTN, PSTN to IP, and IP to IP calls. Name any three types of these features
The compression protocols for PPP are:- A. Stac B. Predictor
Session layer examples are Netbios Names, SQL, NFS, X Windows, and RPC.
Retransmission of packets The disadvantage of thronging away a correctly received packet is that the subsequent retransmission of the packet might be lost or garbled and
Q. Example of go back - N protocol? The window size is 4. A sender has sent frame 6 as well as the timer expires for frame 3 (frame 3 not ACKn'd). The sender goes back as we
A default route is analogous to a default gateway. It is used to decrease the length of routing tables and to give complete routing capabilities when a router may not know the rout
A statistical encoding algorithm is being considered for the transmission of a large number of long text files over a public network. Part of the file content is as follows: DOD
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