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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 mode in IPSec.
(d) Why does the Authentication Header (AH) not authenticate the user of an application?
(e) Name two VPN protocols. Explain how tunneling is used for building Virtual Private Networks. What are the disadvantages of using tunneling?
nstissc secuiryt model
Problem (a) Using Vigenère cipher and given the key abc, find the ciphertext for the message: simplicity Only the 26 lower-case alphabetical characters are used in messa
Network Virtual Terminal It is a set of principles describing a very simple virtual terminal interaction. The NVT is needed in the start of a Telnet session. Communication wit
ASSET IDENTIFICATION AND VALUATION This process begins with identification of assets that includes all elements of an organization’s system (people, procedures, data and informa
What is Authentication/confirmation? How it is different from the Authorization/approval? Explain in brief different authentication protocols along with their merits and demerit
(a) Consider the subsequent authentication options: A. Using password. B. Using pin and fingerprint Which option A or B provides stronger security and why? (b) Give
Benchmarking An alternative approach to risk management is Benchmarking. It is process of seeking out and studying practices in other organizations which one’s own organization de
Base lining • Organizations do not have any contact to each other • No two organizations are identical to each other • The best practices are a moving target • K
VULNERABILITY SCANNERS Active vulnerability scanners scan networks for detailed information, it initiate traffic to determine security holes. This scanner identifies usernames a
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
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