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What are proxy servers and how do they protect computer networks?
Proxy servers primarily stop external users who identifying the IP addresses of an internal network. Without information of the correct IP address, even the physical location of the network can't be identified. Proxy servers can make a network virtually invisible to external users.
State about the communications network 1) The communications network may only accept blocks of data up to a specific size. (2) Error control might be more effective with a
Identify Connectivity Problems Step 1: Use the ping command to test network connectivity. Use the following table to test the connectivity of every network device.
Describe the static routing process A static routing method does not adapt to changing conditions on the network but uses a fixed method developed ahead of time. With alternat
Control Frame: set_successor Station X wants to leave Successor S Predecessor P X sends set_successor frame to P With S as data field P changes its
What are IP addresses? IP address refers to the name of a computer on a network, like the Internet. An Identifier for a computer or device on a TCP/IP network, like the
Many instance of IGRP run on one physical router
What are the important topologies for networks? BUS topology: In this every computer is directly linked to primary network cable in a single line. Advantages: Inexpensive,
Networks are more frequently being prepared to allow specification of the quality of service needed by users. For example: - a typical voice telephone call may give a QoS para
Gateway A gateway is an internetwork device which joins different network protocols together. It woods on all seven layers of OSI model. Gateways are also known as pro
how does the near/far effects infulence TDMA system?what happen CDMA system? what are countermeasures in TDMA system/
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