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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

#

10/100/1000 Ethernet

1U, 2U, 4U

24x7 Support

2FA (Two-factor Authentication)

3-2-1 Backup Rule

40/100 Gigabit Ethernet

4G/5G Cellular Networks

64-bit Computing

802.11

802.1X

9xx Series Processors

A

AC (Alternating Current)

Access Control

Aggregation Layer

Airflow Management

Alternating Current (AC)

Anycast Routing

API (Application Programming Interface)

Application Programming Interface (API)

Archiving

Asset Management

Audit Trails

Authentication

Availability

B

Backup

Bandwidth

BGP (Border Gateway Protocol)

Biometrics

Bit Rate

Blade Server

Blockchain

BMS (Building Management System)

Border Gateway Protocol (BGP)

Bring Your Own Device (BYOD)

Building Management System (BMS)

Busway

BYOD (Bring Your Own Device)

C

Cabling Infrastructure

CDN (Content Delivery Network)

CFD (Computational Fluid Dynamics)

Cloud Computing

Colo (Colocation)

Colocation

Compliance

Computational Fluid Dynamics (CFD)

Computer Room Air Conditioner (CRAG)

Containerization

Content Delivery Network (CDN)

Converged Infrastructure

CRAC (Computer Room Air Conditioner) -

D

DAS (Direct Attached Storage)

Data Center Infrastructure Management (DCIM)

Data Sovereignty

DCIM (Data Center Infrastructure Management)

DDoS (Distributed Denial of Service)

De-duplication

Demilitarized Zone (DMZ)

Density

DHCP (Dynamic Host Configuration Protocol)

Direct Attached Storage (DAS)

Disaster Recovery (DR)

Distributed Denial of Service (DDoS)

DMZ (Demilitarized Zone)

Downtime

DR (Disaster Recovery)

Duplex

Dynamic Host Configuration Protocol (DHCP)

E

Edge Computing

Edge Servers

Efficiency

Elasticity

Encryption

Environmental Monitoring

Equipment Rack

Escalation Management

ETL (Extract, Transform, Load)

Exascale Computing

Extended Detection and Response (XDR)

eXtensible Markup Language (XML)

Extract, Transform, Load (ETL)

F

Failover

Fault Tolerance

FC (Fibre Channel)

FCoE (Fibre Channel over Ethernet)

Fibre Channel (FC)

Fibre Channel over Ethernet (FCoE)

File Transfer Protocol (FTP)

Firewall

Firmware

Fragmentation

Free Cooling

Front-End Processor (FEP)

FEP (Front-End Processor)

FTP (File Transfer Protocol)

G

Galvanized Steel

Gateway

GB (Gigabyte)

Gigabyte (GB)

Gbps (Gigabits per second)

Gigabits per second (Gbps)

Georedundancy

GPU (Graphics Processing Unit)

Graphics Processing Unit GPU)

Green Data Centers

Grey Water Cooling

Grid Computing

Grounding

H

HA (High Availability)

Hardening

Hashing

HCI (Hyperconverged Infrastructure)

Heating, Ventilation, and Air Conditioning (HVAC)

High Availability (HA)

High Density Server

Hot Aisle/Cold Aisle

Hot Swap

HTTP (Hypertext Transfer Protocol)

HTTPS (Hypertext Transfer Protocol Secure)

HVAC (Heating, Ventilation, and Air Conditioning)

Hybrid Cloud

Hyperconvergent Infrastructure

Hyperscale

Hypertext Transfer Protocol (HTTP)

Hypertext Transfer Protocol Secure (HTTPS)

Hyper-V

Hypervisor

I

IaaS (Infrastructure as a Service)

IC (Integrated Circuit)

IDS (Intrusion Detection System)

Immutable Infrastructure

Incident Management

Information Technology Infrastructure Library (ITIL)

Infrastructure as a Service (IaaS)

Ingress/Egress

Integrated Circuit (IC)

Internet Protocol Address (IP Address)

Internet Small Computer System Interface (iSCSI)

Intrusion Detection System (IDS)

IP Address (Internet Protocol Address)

iSCSI (Internet Small Computer System Interface)

ISO Certification

ITIL (Information Technology Infrastructure Library)

J

Java

Java Virtual Machine (JVM)

JavaScript Object Notation (JSON)

JBOD (Just a Bunch Of Disks)

Jitter

Jitter Buffer

Job Scheduling

Joule

JSON (JavaScript Object Notation)

Jumbo Frames

Jump Server

Just a Bunch Of Disks (JBOD)

JVM (Java Virtual Machine)

K

Kerberos

Kernel

Key Management

Key Performance Indicator (KPI)

Keyboard, Video, Mouse Switch (KVM Switch)

Kilowatt (kW)

Kilowatt-hour (kWh)

Knowledge Base

KPI (Key Performance Indicator)

Kubernetes

KVM Switch (Keyboard, Video, Mouse Switch)

kW (Kilowatt)

kWh (Kilowatt-hour)

L

LAMP (Linux, Apache, MySQL, PHP/Perl/Python)

Latency

LDAP (Lightweight Directory Access Protocol)

Leased Line

Lightning Protection System

Lightweight Directory Access Protocol (LDAP)

Liquid Cooling

Live Migration

Load Balancing

Logical Partition (LPAR)

Logical Unit Number (LUN)

LPAR (Logical Partition)

LUN (Logical Unit Number)

M

Main Distribution Frame (MDF)

Managed Hosting

MDF (Main Distribution Frame)

Mean Time Between Failures (MTBF)

Megahertz (MHz)

MHz (Megahertz)

Microservices

Middleware

Mirroring

Mission-Critical Servers

Modularity

MPLS (Multiprotocol Label Switching)

MTBF (Mean Time Between Failures)

Multiprotocol Label Switching (MPLS)

Multi-tenant

N

N+1 Redundancy

Namespace

NAS (Network Attached Storage)

Network Attached Storage (NAS)

Network Interface Card (NIC)

Network Operations Center (NOC)

Network Service Provider (NSP)

Network Virtualization

NIC (Network Interface Card)

NOC (Network Operations Center)

Node

Non-Volatile Memory (NVM)

Non-Volatile Memory Express (NVMe)

NSP (Network Service Provider)

NVM (Non-Volatile Memory)

NVMe (Non-Volatile Memory Express)

O

Object Storage

Offsite Backup

On-Premises

OOBM (Out-of-Band Management)

Open Source Software

Open Systems Interconnection Model (OSI Model)

Operations Support System (OSS)

Optical Fiber Cable

Orchestration

OSI Model (Open Systems Interconnection Model)

OSS (Operations Support System)

Out-of-Band Management (OOBM)

Outsourcing

Overprovisioning

P

PaaS (Platform as a Service)

Packet

Patch Panel

PDU (Power Distribution Unit)

Peering

Platform as a Service (PaaS)

Power Distribution Unit (PDU

Power Usage Effectiveness (PUE)

Private Cloud

Provisioning

Proxmox

Public Cloud

PUE (Power Usage Effectiveness)

Puppet

Q

QA (Quality Assurance)

QoS (Quality of Service)

QPI (QuickPath Interconnect)

Quad-Core

Quality Assurance (QA)

Quality of Service (QoS)

Quantitative Analysis

Qubit

Query

Queue

QuickPath Interconnect (QPI)

Quiescence

Quota

R

Rack

Rack Servers

Rack Unit (RU or U)

RAID (Redundant Array of Independent Disks)

RCA (Root Cause Analysis)

Recovery Point Objective(RPO)

Recovery Time Objective (RTO)

Redundancy

Redundant Array of Independent Disks (RAID)

Remote Hands

Replication

Root Cause Analysis (RCA)

Router

RPO (Recovery Point Objective)

RTO (Recovery Time Objective)

RU (Rack Unit)

S

SAN (Storage Area Network)

Scalability

SCCM (System Center Configuration Manager)

SDDC (Software-Defined Data Center)

Server Virtualization

Service Level Agreement (SLA)

Service Organization Control (SOC)

Shadow IT

Simple Network Management Protocol (SNMP)

SLA (Service Level Agreement)

SNMP (Simple Network Management Protocol)

SOC (Service Organization Control)

Software-Defined Data Center (SDDC)

Solid-State Drive (SSD)

SSD (Solid-State Drive)

Storage Area Network (SAN)

Switch

System Center Configuration Manager (SCCM)

T

TB (Terabyte)

Terabyte (TB)

Thermal Management

Thin Client

Throughput

TIA-942

Tier System

Tokenization

Top of Rack (ToR)

ToR (Top of Rack)

Tower Servers

Transformer

Two-factor Authentication (2FA)

U

U (Rack Unit)

UDP (User Datagram Protocol)

UFAD (Underfloor Air Distribution)

Underfloor Air Distribution (UFAD)

Uninterruptible Power Supply (UPS)

Universally Unique Identifier (UUID)

Unix

Unshielded Twisted Pair (UTP)

Uplink

UPS (Uninterruptible Power Supply)

Uptime

User Datagram Protocol (UDP)

Utility Computing

Utilization Rate

UTP (Unshielded Twisted Pair)

UUID (Universally Unique Identifier)

V

vCenter

VDC (Virtual Data Center)

VDI (Virtual Desktop Infrastructure)

Virtual Data Center (VDC)

Virtual Desktop Infrastructure (VDI)

Virtual Local Area Network (VLAN)

Virtual Machine (VM)

Virtual Private Network (VPN)

Virtual Private Server (VPS)

Virtual Storage System (VSS)

Virtual Tape Library (VTL)

Virtualization

VLAN (Virtual Local Area Network)

VM (Virtual Machine)

Voice over Internet Protocol (VoIP)

VoIP (Voice over Internet Protocol)

VPN (Virtual Private Network)

VPS (Virtual Private Server)

vSphere

VSS (Virtual Storage System)

VTL (Virtual Tape Library)

W

WAF (Web Application Firewall)

WAN (Wide Area Network)

Wavelength Division Multiplexing (WDM)

WDM (Wavelength Division Multiplexing)

Web Application Firewall (WAF)

Web Hosting

Web Server

White Space

Wide Area Network (WAN)

Wi-Fi

Workflow Automation

Workload

Write Throughput

X

X.509

x86 Architecture

XaaS (Everything as a Service)

XDR (Extended Detection and Response)

Xen

Xeon

XFDF (XML Forms Data Format)

XML (eXtensible Markup Language)

XML Forms Data Format (XFDF)

XML Path Language (XPath)

XOR (Exclusive OR)

XPath (XML Path Language)

Y

YAML (YAML Ain't Markup Language)

YANG

YARN (Yet Another Resource Negotiator)

YB (Yottabyte)

Yearly Yield Savings (YYS)

Yet Another Resource Negotiator (YARN)

Yield

Yottabit

Yottabyte (YB)

YubiKey

YYS (Yearly Yield Savings)

Z

Zabbix

ZB (Zettabyte)

Zero Downtime

Zero Trust Security Model

Zettabyte (ZB)

Zettabyte File System (ZFS)

ZFS (Zettabyte File System)

Zigbee

Zombie Process (or Zombie Server)

Zombie Server (or Zombie Process)

Zone Redundancy

Zoning

Z-Wave