Term
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Definition
| a network to which access is limited, restricted, or controlled. Most corporate networks are private networks. |
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Term
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Definition
| The DNS server that offers zone data from files that are stored locally on the machine |
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Term
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Definition
| a standard or specification that is created by a single manufacturer, vendor, or other private enterprise |
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Term
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Definition
| a set of rules or standards that control data transmission and other interactions between networks, computers, peripheral devices, and operating systems. |
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Term
| protocol identification field |
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Definition
| in a frame, a 5-byte field used to identify to the destination node the protocol that is being used in the data transmission |
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Term
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Definition
| two or more protocols that work together, such as TCP and IP or IPX and SPX. Also known as a protocol stack. |
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Term
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Definition
| a device, application, or server eliminating the ability for direct communication |
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Term
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Definition
| A server that acts as a go-between for a workstation and the internet. A proxy server typically provides an increased level of security, caching, and administrative control. |
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Term
| PTSN(Public Switched Telephone Network) |
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Definition
| A term that refers to all the telephone networks and services in the world. The same as POTS, PTSN refers to the world's collection of interconnected public telephone networks that are both commercially and government owned. All the PSTN is digital, except the connection between local exchanges and customers |
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Term
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Definition
| A network, such as the internet, to which anyone can connect with the most minimal of restrictions |
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Term
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Definition
| A set of ports that are connected to the network ports throughout a building. Connections to networking equipment, such as hubs or switches, are established at the punchdown block |
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Term
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Definition
| A hand tool that enables the connection of twisted pair wires to wiring equipment such as a patch. |
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Term
| PVC (permanent virtual circuit) |
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Definition
| a logical path that is established between two locations in a packet-switching network. A PVC is similar to a dedicated line and is known as a permanent virtual connection in ATM terminology. |
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Term
| RAID(Redundant Arrays of Inexpensive Disks |
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Definition
| A method of storing data on multiple hard drives, allowing the overlapping of I/O operations. |
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Term
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Definition
| Data is striped and split among multiple hard drives; data is not redundant is is most vulnerable in RAID 0. |
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Term
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Definition
| Redundant method of mirroring two hard drives identically, exponentially increasing fault tolerance; more expensive and half the data capacity over RAID 0 |
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Term
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Definition
| Fault-tolerant method that uses disk stripping with error correction |
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Term
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Definition
| A fault tolerant method that uses disk stripping with a single disk for parity. |
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Term
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Definition
| A fault-tolerant method that uses disk stripping with a single disk for parity. Striping is done across the disk in blocks |
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