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NETWORK ANALYZERS:
A network analyzer also known network monitor or a network sniffer is used to calculate the performance of or debug a network.
It may report statistics such as capacity distribution of frame size, utilization, token circulation time or collision rate.
OPERATION OF NETWORK ANALYZERS:
The main idea behind the function of network analyzer is a device with a network interface that accept all frames, which is known promiscuous mode. Several desktop computers have interface that may be configured for promiscuous type. When combined with software computer can calculate any frame on LAN. In this way the interaction across LAN is have to be private. This device receives and displays frames on the LAN.
Network analyzer may be configured to process and filter frames. It may count frames of specific kind of size. It shows only frames from or to specific device. In general it may be configured to check any value of any field and save only these frames acting the filter specifications.
FDDI -(Fiber Distributed Data Interface) FDDI Basics: FDDI (Fiber Distributed Data Interface) came about because system managers became concerned with network reliability i
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i) Identify at least two items at every site that needs upgrading [2 Marks] ii) What type of WAN connection (link) might you use to connect the three sites to each other?
Control Flow: Once the client has established a network connection with a server, the server must instantiate a new, empty, BasicEnrollmentManager implementation for this client,
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Some multiple WAN methods are defined below: ARPANET: It start in 1960's. It was operated by Advanced Research Project Agency, which is a company of US defense department.
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