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Question:
(a) How can you prevent someone from accessing your computer when you leave your office for some time?
(b) What is the difference between a classic login and a welcome login in Windows XP professional? Which one is more secure?
(c) Describe how access control is implemented on windows XP.
(d) How can you protect files on Windows XP computer such that they can be read only by yourself?
(e) List the 6 settings that can be configured for the password policy in Windows XP.
(f) What is the use of cookies? Can they contain viruses? What serious threat can cookies prove to security?
(g) Describe how and where a secret key can be securely stored, assuming Windows XP operating system.
Topic -Spam is an ever-growing problem, with some network administrators reporting that 90% or moreof the email delivered to their mail servers is spam. Identify and briefly evalua
INTRODUCTION TO CRYPTOGRAPHY Cryptography The word cryptography is derived from Greek words kryptos, which means hidden and graphein, meaning to write, this is the process of
Q. Attacks on wireless network WSN are vulnerable to attacks which compromise the integrity of the WSN nodes by decreasing the nodes' fault tolerance capabilities, data distrib
Question: (a) i. Explain what is meant by Discretionary Access Control and Mandatory Access Control ii. Which method would be the most effective to ensure that users do
(a) (i) If m = p·q·r where p, q, and r are prime numbers, what is Φ(m)? (ii) Therefore, Determine Φ(440). (b) Describe the following terms as used in cryptography: (i)
Question: (a) Prove that every positive integer n can be factorized into a product of prime powers. (b) State the Fermat-Euler theorem as needed in the RSA system. (c) Us
which security protocols are predominantly used in web-based e-commerce
QUESTION (a) Hashing and salting is commonly used as password storage techniques for most applications. Describe how hashing and salting enable secure storage of password (b
Simplex data exchange Simplex communication defines to communication that happens in one direction only. Two definitions have made over time: a common definition, which is des
1. We used the National Vulnerability Database. Select a recent vulnerability from that Database and analyse it from the following aspects: Criticality level Impact in
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