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Question
(a) Name 3 popular electronic mail access protocols?
(b)
i. What is DNS?
ii. Briefly, describe what it does and how it works?
iii. Why does DNS use a distributed approach as opposed to a single server?
(c) HTTP supports both non-persistent and persistent connections.
i. Describe each type of connection and state which HTTP protocol version supports each type?
ii. How and where is the type of connection specified in the HTTP protocol?
(d) Assume that a new application layer protocol is developed for video conferencing application. Which transport layer protocol do you think will be used and why?
(e) FTP is said to have an "out-of-band" connection. Explain what it means?
The first and foremost need of any business is a role to perform for its client base, and for the spammer this will typically be the role of advertising products which, due to the
Question 1 a) What is a NMS? Question 2 Explain about Structure of Management Information Question 3 A)In which UDP port number does a protocol entity receive message?
Discuss the risks of having a single root user
SDES encryption and decryption
CSMA/CA Wireless needs collision avoid ness rather than collision checking. Transmitting computer puts very short codes to receiver. Receiver responds with short message getti
QUESTION (a) Illustrate the term file carving. (b) What are the basic three main techniques for image steganography? (c) Distinguish between vector graphics and raster
(a) Which PKI (Public Key Infrastructure) model is typically favored by business organization? (b) Give one possible use of the "extensions" field of an X.509 certificate
Computer networks is a complex subject due to the given reasons: MANY DIFFERENT TECHNOLOGIES EXIST: The first reason for the complexity of networks is that there are s
Ask question #MHow Ethical are Major Internet Companies?
INTRODUCTION TO RISK MANAGEMENT Risk management is the procedure of identifying and controlling risks facing an organization. Risk management is the discipline which is employed
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