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Question: (a) Describe the importance of backups and the use of antivirus software. (b) With the help of an example/ illustration, explain the term encryption and explain
What are the key functions of data link layer? Data link layer transfers data in a structured and reliable manner so that the service given by the physical layer is utilized by
What are the benefits of using subneting?
Which layer is responsible for negotiating data transfer syntax? Ans) The Presentation layer does the following: Manages data representation conversions, or data transfer syntax
Advantages of VPNs Advantages discussed in the following section include those related to security. Consolidation transparency cost. And administration. a. Improved secur
Applications of Fiber Optics - Backbone networks because of wide bandwidth and cost effectiveness - Cable TV - LANS - 100Base-FX (Fast Ethernet)
How does Intranet Work? An Intranet can be defined as a private network which uses Internet tools. The principal tool is the Web browser, but there are other Internet tools su
Explain IBM's SNA Architecture SNA is a computer networking architecture that was formed by IBM to give a network structure for IBM mainframe, midrange, and personal computer s
(i) Suppose that frames are 1250 bytes long including 25 bytes of overhead. Also assume that ACK frames are 25 bytes long. a) Calculate the efficiency of stop-and-wait ARQ in
What is the difference between TFTP and FTP application layer protocols? The Trivial File Transfer Protocol (TFTP) allows a local host to obtain files from a remote host but d
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