Server+ Glossary & Acronyms

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This is a glossary of terms commonly used when studying for Server+ certification exam

To add new definitions, please use the format:

;item

the item's definition and explanation paragraph, if any

Contents

0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Top of page — See also — External links

[edit section] A

ACK

Acknowledgment.

ADR

Advanced Digital Recording

AFC

Automatic File Compression.

AGP

Advanced Graphics Port.

AIT

Advanced Intelligent Tape.

ALB

Adapter Load Balancing.

2 NIC's statically configured with the same IP.

ALU

Arithmetic Logic Unit.

APIC

Advanced Programmable Interrupt Controller.

API

Application Programming Interface.

ARP

Address Resolution Protocol.

ASPI

Advanced SCSI Programming Interface.

ATA

Advanced Technology Attachment.

ATAPI

Advanced Technology Attachment Programming Interface.

[edit section] B

BDC

Backup Domain Controller.

BIOS

Basic Input Output System.

Bit

Binary digit. Can either be a 0 or 1 (on or off state)

BPS

Bits per second.

Byte

Set of 8 bits. Used to represent 1 character.

[edit section] C

Cache

A type (or amount) of memory specifically allocated for the fast access of pre-stored information.

CISC

Complex Instruction Set Computing.

Client

Workstation.

CMOS

Complementary Metal Oxide Semiconductor.

Coax

A Cable Type.

CPU

Central Processing Unit. (The computer in the computer)

CRC

Cyclical Redundancy Check.

CSMA/CD

Carrier Sense Multipul Access/Collision Detection.

[edit section] D

DAT

Digital Audio Tape. A data backup method (medium).

DAS

Direct Attached Storage.

DDR

Double Data Rate.

DHCP

Dynamic Host Configuration Protocol.

Differential Backup

Backs up only the information added since the last FULL backup.

DIMM

Dual In-Line Memory Module.

DLT

Digital Linear Tape. A data backup method (medium).

DMA

Direct Memory Address.

DMI

Desktop Management Interface.

DMTF

Desktop Management Task Force.

DNS

Domain Name Service. (IP based service)

DRAM

Dynamic Random Access Memory.

DRP

Disaster Recovery Plan

[edit section] E

ECC

Error Checking and Correcting. Error Correction Code. A memory (hardware) type.

EDO

Extended Data Out.

EISA

Extended Industry Standard Architecture. (Supports 32 bits)

ESD

ElectroStatic Discharge.

[edit section] F

FAU

File Allocation Unit.

FCAL

Fiber Channel Arbitrated Loop.

FCIP

Fiber Channel Internet Protocol.

FDDI

Fiber Distributed Data Interface.

F-Port

Stands for Fabric Port. Fabric Port is located at the switch end.

FPU

Floating Point Unit.

Fragmentation

Breaking packets into smaller chunks.

FRU

Field Replaceable Unit.

FSB

Front-side Bus. (a speed measurement).

FTP

File Transfer Protocol. (IP based service)

[edit section] G

'Grandfather''''Back-Up.

Part of the Grandfather, Father, Son backup rotation method. The Grandfather Back-Up is traditionally performed once a month and is used to back up the entire server.

[edit section] H

HCL

Hardware Compatibility List.

HTTP

HyperText Transfer Protocol.

[edit section] I

IAS

Internet Authentication Service.

ICMP

Internet Control Message Protocol.

IDE

Integrated Drive Electronics.

IEEE

Institute of Electrical and Electronics Engineers, Inc.

IETF

Internet Engineering Task Force.

IIS

Internet Information Service.

IMAP

Internet Message Access Protocol.

Int13h

"Int" = interrupt and "13h" = the number 19 in hexadecimal notation.

I/O

Input/Output.

IP (TCP/IP)

Internet Protocol. (Transmission Control Protocol / Internet Protocol)

IPSec

IP security. (Used for WAN security)

IPMI

Intelligent Platform Managment Interface.

IRC

Internet Relay Chat.

IRQ

Interrupt Request.

ISA

Industry Standard Architecture. (Supports 8 bits)

ISC

Intel Server Control. (A management console)

iSCSI

Internet SCSI. A mapping of SCSI devices over the TCP/IP protocol.

ISP

Internet Service Provider.

[edit section] J

JMXs

Java Management Extensions.

[edit section] K

Kerberos

A security protocol used for authenticating LAN users.

KVM

Keyboard, Video, Mouse interface.

[edit section] L

L1

Level One. A type of cache memory built into the CPU chip circuit.

L2

Level Two. A secondary cache of memory built into the CPU chip circuit.

L2TP

Layer 2 Tunneling Protocol. (Used to support Virtual Private Networks)

LAN

Local Area Network.

LBA

Logical block addressing

LDAP

Lightweight Directory Access Protocol.

LUN

Logical Unit Number.

LVD

Low Voltage Differential.

[edit section] M

MAC

Media Access Control.

MBF

Meantime Before Failure.

MBR

Master Boot Record.

MCA

Micro Channel Architecture (Bus) An IBM proprietary architecture.

MCI

Micro Channel Interconnect.

MIB

Management Information Base.

MIF

Management Information Format.

MMC

Microsoft Management Console.

MOS

Metal Oxide Semiconductor.

[edit section] N

NAS

Network-Attached Storage.

NDS

Novell Directory Services.

NFE

Native File Encryption.

NIC

Network Interface Card.

NMS

Network Management System.

NNTP

Network News Transfer Protocol.

NOS

Network Operating System.

N_Port

Node Port. Located at the termination (Node) end.

NTFS

New Technology File System. (Microsoft Proprietary)

[edit section] O

OIDs

Object Identifiers.

OS

Operating System.

OSI

Open System Interconnect.

[edit section] P

Packet

A unit of data.

Paging File

AKA Swap File. *Virtual Memory*.

PCI

Peripheral Component Interconnect. (Supports 32-bits)

PDC

Primary Domain Controller.

POP

Post Office Protocol.

POP3

Post Office Protocol version 3.

POST

Power On Self Test.

POTS

Plain Old Telephone Service.

PPP

Point to Point Protocol.

[edit section] Q

QIC

Quarter Inch Cartridge. A slow data backup method (medium).

QoS

Quality of Service

[edit section] R

RAID

Redundant Array of Inexpensive Disks (Drives).

AKA - Redundant Array of Independent Disks (Drives).

RAM

Random Access Memory.

RAS

Remote Access Services.

RRAS

Routing and Remote Access Service.

RISC

Reduced Instruction Set Computing.

RU

Rack Unit. A standard measurement for rack mounting devices.

1 RU = 1.75 (one and three-quarter inches).

[edit section] S

SAN

Storage Area Network.

SATA

Serial ATA. Supports hardware RAID and up to 16 devices per controller.

SCSI

Small Computer Systems Interface.

SCSI-1 5MBPS 8 bit bus.

Fast-Wide SCSI-2 20MBPS 16 bit bus.

Ultra Wide SCSI-3 40MBPS 16 bit bus.

SDLT

Super Digital Linear Tape (backup medium).

SDRAM

Synchronous Dynamic Random Access Memory.

SIMM

Single In-Line Memory Module.

SMB

Server Management Bus.

SMP

Symmetric Multi-Processing.

SMTP

Simple Mail Transfer Protocol.

SNA

Systems Network Architecture (IBM) (File Sharing Protocall Stack).

SNMP

Simple Network Management Protocol. (TCP/IP based service)(Uses TCP port #161)

SRAM

Static Random Access Memory.

SSL

Secure Socket Layer.

Swap File

AKA Paging File. *Virtual memory*.

[edit section] T

TCP

Transmission Control Protocol.

TCP/IP

Transmission Control Protocol / Internet Protocol.

[edit section] U

UDP

User Datagram Protocol. (Part of the TCP/IP protocol suite)

UFS

UNIX File System.

UPS

Uninterruptible Power Supply.

URL

Uniform Resource Locator.

USB

Universal Serial Bus.

[edit section] V

VC-SDRAM

Virtual Channel SDRAM.

VESA

Video Electronics Standards Association.

[edit section] W

WAN

Wide Area Network

WINS

Windows Internet Naming Service.

WWW

World Wide Web.

[edit section] X

[edit section] Y

[edit section] Z

ZCR

Zero Channel RAID.

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