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NEED FOR SECURITYPrimary mission of information security to ensure that the systems and contents stay the same If no threats, could focus on improving the systems, resulting in vast improvements in ease of use and usefulness. Attacks on information systems are occurs daily, and the requirement of information security increases as sophistication of such attacks increase.
COMPONENTS OF AN INFORMATION SYSTEM The components of an information system are software, data, hardware, people, procedures and Networks. These 6 components are critical to ena
Question: a. State briefly three reasons why computer networks are used? b. Differentiate between simplex, half-duplex and full-duplex mode of transmission. c. State any
FRAGMENTATION Fragmentation information is kept in different extension header. Every fragment has base header and fragmentation header. Whole datagram including original hea
Innovative nature of triple key management The triple key management scheme provides secure services by combining different techniques whic contribute to the security and priv
SECURITY ANALYSIS Overview • Know yourself: examine, identify, and understand the information and systems which are currently in place • Know the enemy: examine, identify,
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Repeater known as regenerator ; it is an electronic machine that performs only at physical layer. It gets the signal in the network before it becomes loss or weak, recreates the
The method used to check errors is checksum . In this method data is treated as a sequence of integers and their arithmetic sum is calculated and the carry bits are added to the
a) Explain the contents of the Cost Assessment. b) Various Documents are needed for Configuration Management. State three of them, and describe their importance. c) Given tha
W h a t do you understand by the terms security, network security and information security? How network security and information security are connected? Security can be def
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