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Q. Show the Character-level Encryption?
- Substitutional
- Monoalphabetic - simplest form; also called Caesar cipher
- Every character is replaced with another character in the set
- Ke and Kd are the similar and define the added or subtracted value
- Can be broken easily; does not hide repetition
- Polyalphabetic - each occurrence can have a different substitute (ex. Vigenere)
- Based also on position of character in the text
- Frequencies are not preserved; more difficult to break than monoalphabetic
What are the value added services Many organisations are demanding higher services (also called value added services) such as faxing, minimal cost call routing, connectivity to
difference between spambox and inbox in gmail
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Q. What are the basic key functions of data link layer? Ans: Data link layer transfers data in a structured and reliable manner so that the service given by the physical layer
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What is the minimum size of MTU bytes is
Network Protocols In computer networks communication occurs between the entities in different systems an entity is anything that is capable of sending or receiving
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