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Efficiency of a data communications system depends on three fundamental characteristics
- Delivery: The system should deliver data to the correct destination. Data should be received by the intended device or user and only by that device or user
- Accuracy: The system should deliver the data accurately. Data that have been altered in transmission as well as left uncorrected are unusable
- Timeliness: The system should deliver data in a timely manner. Data delivered not on time are useless. Delivering the data in the similar order that they are produced and without significant delay (real time transmission)
What is redirector in Networking? Redirector is software that intercepts file or prints I/O requests and changes them into network requests. This comes under presentation layer
Connection to backbone LAN In most cases, interconnection with stations on a wired backbone LAN is needed. For infrastructure wireless LANs, this is simply accomplished by the
What are the types of Transmission media? Signals are usually transmitted over some transmission media that are broadly divided in to two categories:- Guided Media: Th
Q. What are the trends in Network Security ? Trends in Network Security Improved vigilance for virus infections Continual maturation of firewall technologies
Question 1 A) Explain briefly the advantages wireless communication systems B) What is a cellular network? Question 2 Explain fundamental architecture of
Error Detecting Code - Parity bit: The general idea for achieving error detection and correction is to add some redundancy (i.e., some extra data) to a message, which receiver
Write the RIP timers in detail?
What is Ping? Ping is a utility program that permits you to check connectivity among network devices on the network. You can ping a device by using its IP address or device nam
Carrier Sense Multiple Access/Collision Avoidance a) Necessary since wireless LANs cannot implement CSMA/CD b) Collision detection requires increased bandwidth requirements
Describe packet filtering firewall?
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