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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.
What are the characteristics of Client/Server? Service Encapsulation of services Shared resources Asymmetrical protocols Mix-and-match Transparency of location
Explain Asynchronous FDDI Asynchronous bandwidth is allocated utilizing an eight-level priority scheme. Every station is assigned an asynchronous priority level. FDDI as wel
do you do paraphrase
Q. Difficulties in Internetwork Communication? - Data arrive at interface f1 of s1 - How does s1 know that they must be sent out from interface f3? - There is no provisio
what's the difference among Symmetric and Asymmetric cryptosystem?
In connectionless schema, there is no connection required. The source of data includes destination information in data and transmit to the network. Network transmit each data item
What is meant by Asymmetrical protocols? There is a many-to-one relationship among clients and server. Clients always initiate the dialog by requesting a service. Servers are p
Q. What do you mean by Addressing? Addressing Require to uniquely and universally identify every device to allow global communication Internet address or IP address is us
Explain ISO's OSI Architecture The Open System Interconnection (OSI) is a standard reference model for communication among two end users in a network. It is used in developing
You are the Senior Project Manager in a software company and have, as part of your team, a student on a three month internship. The student has proudly told you that they have stu
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