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Question 1 Describe the architecture and usage of ISDN
Question 2 Write about different network structures in use
Question 3 Explain the concept of framing in Data Link Layer and its importance in data communication
Question 4 Differentiate Noisy and Noiseless channels in Data Communication
Question 5 Explain firewall and also explain the components of firewall system
Question 6 Explain the two modes of IP Security
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
Can you define Network Layer?
Name the activities does routing protocol perform?
Explain the term - primary memory and hard disk A peculiar situation arises when the existing server arrives at a stage when it cannot handle the requests quickly and most of i
State the term - Lot of care required while programming It is a common and well-known saying that many developers of "secure systems" leave a "back door" way for themselves so
Command Structure: Commands are all-upper-case strings, either 4 or 6 characters in length. Table 1 shows the commands, and (for method commands) the parameters, return values, ex
What are Triggers and Rules? Triggers are special user defined actions generally in the form of stored processes that are automatically invoked by the server based on data rel
How Does a Firewall Protect Firewalls work by controlling the information that comes in and out of the network. By using the Application Proxy service, the flow of information
PROTOCOL SOFTWARE AND ETHERNET WIRING: All wiring methods use identical Ethernet specifications. e.g. they need same message format. They need same CSMA/CD algorithems. They m
Security risks present on the networks Lots of risks are present everywhere on Internet as well as on Intranet, if it is not known what is being done. Every day a number of
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