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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 its relevance in electronic transactions.
(c) How could intranets be useful in an organisation
(d) Explain how prototyping can help having better Information Systems in an organisation.
DNS in the Internet -Domain name space is split into three sections: country, generic and inverse -Generic domains define hosts by generic behavior -Country domains are
802.11g OFDM a) Uses OFDM with same 2.4 GHz band b) Achieves a 54-Mbps data rate c) Works with same 802.11b equipment
Question: (a) With mobile telecommunications providing an important engine for growth, continuing to stimulate growth and to ensure mobiles remain affordable for all, will re
what is routing
What is a Database Server? With a database server, the client passes SQL requests as messages to the database server. The results of every SQL command are returned over the net
Retransmission of packets The disadvantage of thronging away a correctly received packet is that the subsequent retransmission of the packet might be lost or garbled and
Persistent and No persistent Connections HTTP can use both persistent and non persistent connection. By defaults uses persistent connections. Persistent Connections
Coaxial Cable Coaxial cable carries signals of higher frequency ranges than those in twisted pair cable. In part because the two media are constructed quite differently.
What are the disimialr tables in OSPF?
Q. What is Sliding Window protocols? Alternatives: Sliding Window protocols - One task begins prior to the other one ends (concept of
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