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(a) Mention the five main security services.
(b) What is a passive attack? Give an example of passive attack?
(c) What four types of active attacks and mention their respective attacks to which security services?
(d) Distinguish between authentication and non-repudiation.
(e) Which type of algorithms can be used to provide the following security services:
i. Message integrity
ii. Message integrity and authentication
(f) Describe how public key cryptography can be used to provide message confidentiality when Alice wants to communicate with Bob.
(a) What is a pseudorandom generator? Give an example describing how it works. (b) Explain the key components of a wireless network and their purpose. (c) Describe the authen
IPV6 BASE HEADER FORMAT: It has less information than IPV4 message header. Next header shows to first extension message header. Flow label is partitioned into a TRAFFIC CLASS
ADDRESS RESOLUTION WITH CLOSED-FORM COMPUTATION For networks use reliable addressing, it is possible to select an address that creates closed-form address resolution possible.
Question: (a) African governments are slowly shifting to more transparent ICT regulations. However, but limited spectrum availability remains a key barrier to sustaining lon
Information asset classification-risk management A number of organizations have data classification schemes (for instance confidential, internal, public data). The classificat
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A digital signature is a stamp on the data, which is unique and very hard to forge. A digital signature has 2 steps and creates 2 things from the security perspective. STEP 1
Screened Subnet Architecture This setup provides an extra security layer to screened host architecture by creating a perimeter subnet which further isolates internal network f
In BUS topology every computer is directly connected to primary network cable in a single way. Bus networks are the easiest way to connect multiple users, but can have problems
Guided Media These are those that give a conduit from one machine to another that add twisted-pair, fiber-optic cable and coaxial cable. A signal traveling along any of these
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