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Explain in detail about wireless network
Think about unseen terminal problem. Imagine a wireless network consist of five stations, A through E, such that each one them is in range of only its direct neighbours. Then A can talk to B at same time D is talking to E. Wireless networks have possible parallelism and in this way it is differ from Ethernet.
ARP sent the request in broadcast, response is unicast When a source sends ARP request the switch broadcast the ARP req. if it doesn't have the destination mac address in its ma
Application Layer The application layer provides an interface between application entities and the users computer. This layer offers services to a variety of aspects of d
What is a Java package and how is it used? A Java package is a naming context for classes and interfaces. A package is used to make a separate name space for groups of classes
Q. What do you understand by OSI? Ans: The Open System Interconnection (OSI) reference model illustrates how information from a software application in one computer goes throug
What are firewalls? Firewalls serve to protect an internal network from external attacks. These external threats can be hackers who need to steal data or computer viruses that
Can you define the concept of VLSM?
What are the key design issues of a computer Network? a. Connectivity b. Cost-effective Resource Sharing c. Support for common Services d. Performance
Can you tell how actually NAT works?
Token Bus Frame Format No length field Data is able to be much larger (timers prevent hogs) Frame control Ack required? Data vs Control frame and how is
Uses of fragmentation and reassembly The More bit is used for fragmentation and reassembly. If this bit is 0, then either there has been no fragmentation of this packet or this
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