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QUESTION
(a) Describe the role of DNS root servers in the Internet network.
(b) What do you understand by the handover concept in a mobile network?
(c) List five methods which can be used to secure a LAN?
(d) An end user has reported that he is not getting connection to the main server. Assuming that the computer of the user and the server are connected to a switch, write down a procedure for troubleshooting the above problem using
(i) A command in the operating system.
(ii) Physical inspection.
QUESTION (a) Define and distinguish between Electronic Commerce and Electronic Business (b) According to you what are the benefits that Electronic Commerce can brings to org
Q1 (15 marks, 5 marks each part): This question has three parts: In a short paragraph (200-300 words) explain the fundamentals of Packet Switching and how it works. In a short pa
Problem: (a) What is a firewall and which are its most important tasks? (b) What is the difference between default deny and default permit? Which advantages and disadvanta
Stateless Packet Filtering Stateless or static packet filtering is the most straightforward kind of packet filtering that allows or disallows data transfer based on the addres
(a) Using the extended Euclidean algorithm, find the multiplicative inverse of 504 mod 67. (b) Decrypt the following ciphertext, which has been encrypted using Caesar cipher:
what is computer network?
Intercultural sensitivity: recognising differences You represent a Mauritian computer company which is negotiating to buy hardware from a manufacturer in Japan. In your first
why is it that sometime we put password in our account to login or signup and it would not work?
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 you
implementing password policy in organisation
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