Define proxy servers and how do they protect computer networks?


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The rules used to define the objects that can be accessed via a network management protocol is called ?

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Define mesh topology?

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What does DNS stand for ?

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Explain how to securing a computer network?

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Which network conforms to IEEE 802.3 specs and is called standard Ethernet ?

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how i can Design a client–server network with two servers operating at 100Base- T Fast Ethernet speed and the clients operating at regular 10Base-T Ethernet speed using a 10/100 Mbps NIC. The hub is located in a wiring closet, but the servers and clients are not. Assume that a satisfactory performance is achieved at 40% utilization of the LAN.

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Difference b/w SCSI AND IDE

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What would you put in the /etc/gateways file such that a route is defined to network called net2 via router called host4? Assume that net2 is 3 hops away. Also, assume that the gateway is not expected to exchange RIP information.

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In PPP, a protocol frame is used for selecting and configuring the network layer protocol ?

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