What is frame relay?

In computer networks, frame relay is an efficient, reasonably cheap, and fast way to transfer data. It is usually used to organize data exchange between local area networks (LANs) through…

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What is SMTP ?

SMTP SMTP (Simple Mail Transfer Protocol) - This protocol is TCP / IP, which is a set of rules and guidelines that must be followed by the system, and which is used…

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Cisco Discovery Protocol

Cisco Discovery Protocol (CDP) is a powerful network monitoring and diagnostic tool. CDP is an information collection tool used by network administrators to obtain information about directly connected Cisco devices. CDP…

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Windows Networking Commands

Windows Command Line Tools has many commands , lets look some of the networking commands. ping command Ping is used to test if a remote computer is reachable using its…

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Cisco IOS Basic Configuration Commands

Command PurposeenableLogs you into enable mode, which is also known as user exec mode or privileged modeconfigure terminalLogs you into configuration modeinterface fastethernet/numberEnters interface configuration mode for the specified fast ethernet interfacereloadAn…

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What is a “DNS Sinkhole”?

Domain Name Service (DNS) On the internet, computers communicate with each other by using numerical identifiers known as IP addresses. Human readable addresses are more intuitive and easier to remember,…

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What is Port Scan ?

Port scan is a process to look for open ports on a host , it is done by sending requests to a host of a range of server port addresses…

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WHAT IS IGMP SNOOPING ?

A number of platforms on the Internet use the multicast method to transfer data to a group of users. This technology is used for online games, live broadcasts, distance learning,…

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What is IP Spoofing ?

What is IP Spoofing ? In computer networking, IP address spoofing or IP spoofing means creating packets with a false source IP address, to impersonate another computing system. The basic…

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