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Question :
(a) State whether the following statement is FALSE or TRUE: It is always better to have various access points to the Internet so that if a hacker takes one down your company still has access.
(b) Mention limitations of a firewall.
(c) How does a packet filtering firewall operate?
(d) How can NAT be used to protect your network?
(e) What is the role of an intrusion detection system? Explain the operation of the signature based intrusion detection system.
(a) Describe DES encryption with a block diagram and brief steps. (b) How does triple DES improve security. What is the effective key length of triple DES? How can 3DES be compa
Border Gateway Protocol It is a protocol needed to advertise the set of networks that can be achieved within an autonomous machine. BGP activates this information to be shared
Produce a short report of your experiences in installing and using PGP. The report should be written in the form of a journal that contains at least the following items: A de
Question (a) Inspect the following ifconfig output of an IPv6 interface: i. What is the hidden Hardware Address of the interface on Line #1? ii. What is the hidden subn
What are the main differences between TCP/IP vs OSI?
Question: Human telephone conversations are characterized by irregular pauses, alternating with irregular bursts of speech. In contrast, communication via computers is char
How does the POP functions? What are the advantages/benefits of IMAP over POP? POP stands for Post Office Protocol, version 3 (POP3) is one of the easiest message access protoc
Hybrid Cryptography Systems This makes use of different cryptography systems. Except digital certificates, pure asymmetric key encryption is not used extensively. Asymmetric enc
TRANSPORT PROTOCOLS: Give application-to-application communication. Require extended addressing mechanisms to check applications. Are known end-to-end communicatio
Question (a) For the bit stream 010011, show the waveforms for each of the code indicated. Consider that the signal level for NRZ-L for mark is positive; the signal level for t
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