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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.
On a LAN where are IP Datagram transported?
The Data link layer performs the following: Responsible for physically passing data from single node to another. Translates messages from the upper layers into data frames and adds
What is Ring topology The network consists of a set of repeaters joined by point-to-point links in a closed loop. Each station attaches to the network at a repeater and can tra
Question: a) One of the most important duties of a system administrator is to protect the information that is stored on network servers. In the same context, describe both Ma
What is the difference between routable and non- routable protocols? Routable protocols can work with a router and can be used to make huge networks. Non-Routable protocols
detail discusion
what is variable ip address
What is the function of the OSI Session Layer? This layer gives the protocols and means for two devices on the network to communicate with each other by holding a session. Thi
TPC and UDP are 2 layer of Transport protocols.
This assignment will assess parts of objectives 2-6 from the subject outline: 1 Explain the principles of logical design 2 Discuss the strengths and weaknesses of various net
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