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What is Proxy Sever and Firewall
Proxy Sever
Also known as a proxy or application level gateway. It is an application that breaks the connection among sender and receiver. Thus, it helps us to stop hacker from getting Internet address and detail of a private network.
Firewall
Firewall is a method for keeping a network secure. It is mainly used in giving user's access to the Internet in a secure fashion as well as to separate a company's public web server from its internal network.
What are the basic LAN topologies? The three simple LAN topologies that are combined to shape any practical topology are called as basic LAN topologies. They are, Bus Topology
Drawback of Repeaters. Repeater has no filtering capability as it forwards every frame. Repeater shell be placed at accurate distance before actual signal becomes
Configure the management interface address on all three switches. S1(config)#interface vlan1 S1(config-if)#ip address 172.17.10.1 255.255.255.0 S1(config-if)#no shutdown
Solve the following CPM/PERT Network Analysis problem: Given the following network and activity time estimates, determine earliest and latest activity times, slack, the expecte
How optimal MTU size is measured
IPv6 The internet engineering task force begin the effort to develop a successor protocols to IPv4 in the early 1990 is an internet layer protocols for packet switched
Illustrate the term- Search Engine and Surfing Search Engine: Software used to find information on the Web. Examples are Google, Lycos and Yahoo. Server: A computer with
When we specifically block, single router update for other routers
Assume the following 64-bit DES key (expressed in hexadecimal): FEFE FEFE FEFE FEFE (a) What is the term for such a key? (b) State the value of each of the 48-bit round keys
a) What does the "CD" mean in the CSMA/CD? How is it implemented in the Ethernet? b) Consider an Ethernet hub with 8 ports and an Ethernet switch with 8 ports. In both cases
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