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Question 1
(a) Explain briefly the following terms as used in network security:
(i) Denial of service (DoS) attack
(ii) Birthday attack
(iii) DeMilitarized Zone (DMZ)
(iv) Social Engineering
(v) Pretty Good Privacy (PGP) algorithm
(b) (i) List three benefits of using IPSec.
(c) Briefly explain the Cipher Block Chaining (CBC) mode of operation stating its advantages, disadvantages and uses.
(d) Describe five guidelines for a desirable password selection and use policy in a corporate organisation.
Dynamic Packet Filtering Dynamic Packet Filtering is also referred to as stateful firewalling. Here the firewall maintains the status of connections as well. When a connection
Question: (a) What is the use of digital certificate? (b) What is meant by a hierarchical trust model in a Public Key Infrastructure? How does the Pretty Good Privacy (PG
The Cost Benefit Analysis (CBA) Formula CBA determines that whether the control alternative being evaluated is worth cost incurred to control vulnerability or not. CBA easily ca
You are an IT Security administrator in a banking organization. Your organization hired an outside IT firm to do a proof of Concept for new equipment which is a computer based syst
Your rules should ensure that Internet access will be restricted to the following: Only the following services will be permitted as OUTBOUND traffic (to the Internet from the DM
Protocols for Secure Communications Securing Internet Communication by using S-HTTP and SSL Secure Socket Layer (SSL) protocol is a protocol that uses public key encryption t
what is guided media or unguided media
QUESTION (a) What do you understand by a VLAN? Provide one advantage of using a VLAN. (b) What is a trunk port in a VLAN? (c) A VLAN will be created using one or more
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
Problem (a) Below is a capture of an Ethernet II frame which contains an IPv4 packet and a TCP segment. The second screen capture is from the data portion of the frame.
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