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Question:
(a) Give 2 benefits of using IPsec.
(b) IPSec uses two protocol for security: Authentication Header protocol (AH) and the Encapsulated Security Header Protocol (ESP). Why is AH required with ESP even though ESP provides authentication?
(c) Describe how the Encapsulated Security Header protocol (ESP) can be used to provide traffic analysis confidentiality using IPSec.
(d) What is a Security Association (SA) and what does it define? Why are there two SAs per one connection? How can two communicating peers agree on what kind of SAs they use?
(e) List two types of firewall that can be used.
(f) Describe the following threats to firewalls: (i) Denial of service, (ii) IP Spoofing and
What countermeasures can be adopted against these threats.
(g) What is a honey pot and why is it commonly used?
IP DATAGRAM SIZE: Datagrams may have different sizes i.e. Header area is generally fixed (20 octets) but can have various options. Data area may contain between 1 octet and 6
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QUESTION: a) Below is a capture of an Ethernet II frame which has an IPv4 packet and a segment. Provide the source MAC address in hexadecimal; the source IP address, the length
Question: (a) What are the various options to mitigate risks in an Information Security Management System (ISMS)? For each option specify an instance where it can be used.
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PARITY BIT: A parity bit is an extra bit transmitted with data item select to give the resulting bit odd or even parity. For example an even parity data packet 10100001 has p
table for inverse z transform
What is information Information comprises the meanings and interpretations which people place upon the facts, or data. The value of information springs from the ways it can be i
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