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Instaling is the act of puting a software on one's system. Configuring is when one sets up the software to run properly or how one wants it to run.
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The principle of least privilege requires that an application be given only those privileges that it needs to carry out its function and no more.
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It contains Destination address , subnet mask , default gateway .
The routing table consists of at least three information fields --
-> the network id - The destination network id
-> cost - The cost of the path through which the packet is to be sent .
-> Next hop - The address of the next station to which the packet is to be sent on the way to destination .
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UTP is unshielded twisted pair cable.
this cable define in catagory
CAT 1,CAT 2,CAT 3,CAT 4,CAT 5,CAT 6,CAT 7
CAT 2 cable use in Telephone Wire.
CAT 5 & Later Catagories use in LAN
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Datalink layer is further divided into two sub layers
1. M.A.C.(Media Access Control)
2. L.L.C.(Logical Link Layer)
Main Responsibilities Datalink layer are
-> Framing
-> Physical Adderessing.
-> Flow Control
-> Error Control
-> Access Control
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Forward Lookup resolves a Hostname to its IP address.
Reverse Lookup resolves a IP Address to its Hostname.
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VoIP is Voice Over Internet Protocol. voice based network used to communicate through IP
It works...like Vonage...
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A VPN connection is the extension of a private network that includes links across
shared or public networks, such as the Internet. VPN connections (VPNs) enable
organizations to send data between two computers across the Internet in a manner
that emulates the properties of a point-to-point private link.
Basically, a VPN is a private network that uses a public network (usually the
Internet) to connect remote sites or users together. Instead of using a dedicated,
real-world connection such as leased line, a VPN uses "virtual" connections routed
through the Internet from the company's private network to the remote site or
employee. In this article, you will gain a fundamental understanding of VPNs,
and learn about basic VPN components, technologies, tunneling and security.
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There are five topologies for networks
-> Ring Topology
-> Star Topology.
-> Bus Topology.
-> Mess Topology.
-> Hybrid Topology.
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A continuous signaling of error conditions on a LAN. In a token ring network, a beacon frame is sent by the adapter if a failure in the line is detected.
In a wireless network, the continuous transmission of small packets (beacons) from the access point (base station) that advertise its presence. The mobile units sense the beacons and attempt to establish a wireless connection.
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