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Categories of ControlsControlling risk through mitigation, avoidance or transference is accomplished by implementing controls. There are 4 effective approaches to select the controls by category:Control function: Controls (safeguards) designed to defend systems are preventive or detective.Architectural layer: Some of the controls apply to one or more layers of organization’s technical architectureStrategy layer: Controls classified by risk control strategy (avoidance, transference, mitigation) in which they operate.Information security principle: Controls can be classified according to characteristics of secure information they assure. These characteristics include: accountability integrity, availability, confidentiality, authorization, authentication, and privacy.
COLLISION DETECTION The signals from two devices will interfere with each other and the overlapping of frames is known a collision. It does not cause to the hardware but data
Question: a) Explain what the following intermediate systems are and how they work? i. Repeater ii. Bridge b) A service is formally specified by a set of primitives (op
a. PKI and PGP are two methods for generating and managing public keys for use in protocols such as secure email. Compare and contrast the trust models for public keys used in PKI
(a) Show four Network Security attacks. How do they compromise security? (b) In what ways do the following devices or services contribute to security: (i) Firewall (ii) In
Question: (a) What is the main security vulnerability of IPv4? (b) Which protocol can be used for secure remote login? (c) Distinguish between the transport and tunnel
A Network is described as a system for connecting computers using a single transmission technology. The computers can interact with each other in a network. They can receive an
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
PARSING IPv6 HEADERS Base header is fixed in size i.e. 40 octets. NEXT HEADER field in the base header describe kind of header and it seems at end of fixed-size base header. S
COLLISION: The receiver can get simultaneous requests, which gives in collision at receivers and both service lost and in this way no transmitter accepts reservations and both use
What questions should Iris ask Charlie about the new job, about Kelvin''s team, and about the future of the company?
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