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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?
In the e-mail system, where the e-mail messages are saved and why? E-mail messages are saved in user’s private electronic mailbox. A mailbox refers to a local/domestic hard drive c
Ask question #MHow Ethical are Major Internet Companies?
Title: Perimeter Network Security System Outline Requirements The University is based in Glasgow, and provides higher education services to its students and staff. It is loc
I have an assignment of Computer Security to submit. Will you guys help me making my assignment???
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 w
There are various benefits related with providing the security. They are given below, (i) Confidentiality/ Privacy (ii) Integrity (iii) Availability (iv)Authenticatio
Divide the user data into 6 equal sets. Use the first set for the enrollment phase of your system, and the rest for the verification phase. Use the following formula to calculate t
Consider the details of the X.509 certificate shown below. a. Identify the key elements in this certificate, including the owner''s name and public key, its validity dates, the nam
Discuss how developers should apply the following countermeasures to improve the security of their code:
In this assignment, you are required to emulate the operation of a link layer and network layer protocols in a small computer network. Your program should behave like a single node
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