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Network+ Abkürzungen (CompTIA)

verwendete Abkürzungen unter Anderem für die Prüfung bei CompTIA, keinerlei Haftung jeglicher Art und Weise (private Zusammenstellen, Nutzung auf eigene Verantwortung) Urheberrecht/Markenrecht der jeweiligen Rechteinhaber ist zu beachten

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ASIC
Application Specific Integrated Circuit (Anwendungsspezifische integrierte Schaltung)
TLD
Top Level Domain
SSH
Secure Shell (TCP Port 22)
IDF
Intermediate Distribution Frame (Stockwerkverteiler)
HIPS
Hostbased Intrusion Prevention System
PoE
Power over Ethernet (IEEE 802.3af, 802.3at, 802.3bt)
MLA
Master License Agreement (Lizenzrahmenvertrag) Multilateral Agreement (Multilaterales Abkommen)
TDM
Time Division Multiplexing
MTP
Message Transfer Part
NLM
NetWare Loadable Module
RSA
Rivest, Shamir, Adleman (USA-Firma, Verschlüsselung)
TACACS+
Terminal Access Controller Access Control System+ (Port 49)
AAAA
Authentication, Autorization, Accounting and Auditing (Authentifizierung, Autorisierung, Abrechnung und Audit) NS-Resource Record zur Zuweisung einer IPv6-Adresse zu einem Namen
RTSP
Real Time Streaming Protocol
DIG
Domain Information Groper (Programm zur DNS-Abfrage)
NCP
Network Control Protocol
IEEE
Institute of Electrical and Electronics Engineers
SPI
Stateful Packet Inspection
CRAM-MD5
Challenge-Response Authentication Mechanism, Message Digest 5 (Authentifizierungsverfahren nach dem Challenge-Response-Prinzip auf der Basis des MD5-HMAC-Algorithmus)
BAN
Body Area Network (persönliches Netzwerk nach IEEE 802.15, gebräuchlich Bluetooth)
EAP-FAST
EAP Flexible Authentication via Secure Tunneling (Cisco WLAN Verschlüsselung)
SNTP
Simple Network Time Protocol
MDS
Multilayer Data Switch (Cisco)
RAT
Remote Access Trojaner, Remote Access Tool
ACL
Access Control List (Zugriffskontrollliste, zentrale Benutzerliste)
UC
Unified Communication
TDMA
Time Division Multiple Access (bei GSM im Einsatz)
WMS
Warehouse Management System
ISM
Industrial, Scientific and Medical
TTLS
Tunneled Transport Layer Security
ACR
Attenuation to Crosstalk (Verhältniswert)
DLC
Data Link Control (Daten Übertragungssteuerung)
NetBIOS
Network Basic Input / Output System (TCP/UDP Port 137,138,139)

SIP

Session Initiation Protocol (Protokoll für die IP-Telefonie, Port 5060)

HASH
Checksum (in der Regel Einmal-Hash Funktionen z.B. MD5, SHA, Whirlpool)
SFF
Small Form Factor
IT
Information Technology (Informationstechnologie)
PCM
Phase-Change Memory (CD-RW, DVD-RAM, BD-RE)
IMAP4
Internet Message Access Protocol Version 4 (TCP Port 143, sicherer Port 993)
Demarc
Demarcation Point (Hausanschluß zum ISP)
NIPS
Network Intrusion Prevention System
LBFO
Load Balancing Fail Over
SCADA
Supervisory Control and Data Acquisition
SAT
Source Address Table (Adresstabelle in Switching-Hubs)
HT
High Throughput
Confidentiality
Vertraulichkeit
WDM
Wavelength-Division-Multiplexing
NAPT
Network Address Port Translation
CARP
Common Address Redundancy Protocol
SDP
Session Description Protocol
BIND
Berkeley Internet Name Domain
WAN
Wide Area Network
EIGRP
Enhanced Interior Gateway Routing Protocol
MGCP
Media Gateway Control Protocol
DECT
Digital Enhanced Cordless Telecommunication
SSO
Single Sign On
Loopback plug
Brücke (Kupfer oder LWL für Testzwecke)
BERT
Bit-Error Rate Test (Bitfehlertest)
802.11ax
(Wi-Fi 6) 2,4 + 5 GHz, 11 GBit/s, 8x8 MU-MIMO, WPA3
SMTP
Simple Mail Transfer Protocol (TCP Port 25, sicherer Port 587)
Wire Stripper
Abisolierzange
CAC
Common Access Card
AES
Advanced Encryption Standard (Erweiterter Verschlüsselungsstandard)
IBM-SNA
IBM System Network Architecture (Netzwerkarchitektur)
CRC
Cyclic Redundancy Check
TCP
Transmission Control Protocol
TDR
Time Domain Reflectometer (hochwertiges Kabel-Testgerät)
ARP
Address Resolution Protocol (Adress-Auflösungs-Protokoll)
PPTP
Point-to-Point Tunneling Protocol
TCL
Terminal Control Language
Zeroconf
Zero Configuration (siehe auch APIPA)
LDAP
Lightweight Directory Access Protocol (TCP/UDP Port 389, 636)
PVC
Permanent Virtual Circuit (Permanente virtuelle Verbindung)
IETF
Internet Engineering Task Force
UDP
User Datagram Protocol
OCSP
Online Certificate Status Protocol
SMB
Server Message Block (Port 445)
TTL
Time to Live
MBps
Megabytes per second (Megabytes pro Sekunde, MB/s)
WAF
Web Application Firewall
NNTP
Network News Transport Protocol
GPG
GNU Privacy Guard
NDA
Non Disclosure Agreement (Verschwiegenheitsvereinbarung)
LAN
Local Area Network (Lokales Netzwerk)
IaaS
Infrastracture as a Service
NAT
Network Address Translation (Netzwerk-Adressumleitung)
ACPI
Advanced Configuration and Power Management Interface
IS-IS
Intemediate System to Intermediate System (Protocol)
MSA
Master Service Agreement (Dienstleistungsrahmenvertrag)
WPA
Wi-Fi Protected Access (Nachfolger: WPA2, WPA3)
S/MIME
Secure Multipurpose Internet Mail Extensions
HSRP
Hot Standby Router Protocol
OFDM
Orthogonal Frequenzy Division Multiplex
ATM
Asynchronous Transfer Mode (Asynchroner Übertragungsmodus)
HTTP
Hypertext Transfer Protocol (Hypertext-Übertragungsprotokoll, TCP Port 80)
TP
Twisted Pair (siehe auch FTP, STP und UTP)
RSTP
Rapid Spanning Tree Protocol (802.1w)
LPD
Line Printer Deamon
MAN
Metropolitan Area Network
AFP
Apple Filing Protocol
MTA
Mail Transfer Agent
HTTPS
Hypertext Transfer Protocol Secure (Sicheres Hypertext-Übertragungsprotokoll, TCP Port 443)
ISDN
Integrated Services Digital Network (2 x B-Kanal 64kBit/s + 16kBit/s D-Kanal)
RIPng
Routing Internet Protocol next generation
WWW
World Wide Web
MD5
Message Digest 5 (kryptografische Hash-Funktion)
CAM
Channel Access Method
CSU
Channel Service Unit (neuerdings im Router integriert)
BSSID
Basic Service Set Identifier (WLAN)
SPB
Shortest Path Bridging
802.11a
(Wi-Fi 2) 5 GHz, 54 MBit/s
IOS
Internetwork Operation System (Cisco OS für Netzwerkgeräte)
MIME
Multipurpose Internet Mail Extensions (Mailformat)
dB
Dezibel = 10 log P1/P2 (dB)
PC
Personal Computer
PaaS
Platform as a Service
DHCP
Dynamic Host Configuration Protocol (UDP Port 67/68)
RIP
Routing Internet Protocol
E3
E-Carrier Level 3 (Europa, 512 x 64kBit/s Daten-Kanäle, 34,368 Mbit/s)
MDIX
Media Dependent Interface Crossover
MUMIMO
Multiuser Multiple Input, Multiple Output (WLAN)
QAM
Quadratur-Amplituden-Modulation (kombiniert Amplituden- und Phasen-Modulation)
DSSS
Direct Sequence Spread Spectrum
NFC
Near Field Communication
PRP
Parallel Redundancy Protocol (eingesetzt bei High Availability)
IPX/SPX
Internetwork Packet Exchange / Sequenced Packet Exchange (eingesetzt bei Novell Netware)
Zero Day Exployed
Software Schwachstelle ohne Patch
NIDS
Network Intusion Detection System
ISOC
Internet Society
E1
E-Carrier Level 1 (Europa, 32 x 64kBit/s Daten-Kanäle, 2,048 Mbit/s)
FTP
File Transfer Protocol (Daten Übertragungsprotokoll, TCP Port 20+21) Foiled Twisted Pair (FTP-Kabel)
DAI
Dynamic ARP Inspection (prevent many Address Resolution Protocol (ARP) attacks)
802.11
2,4 GHz, 2MBit/s
HSPA
High Speed Packet Access
IIoT
Industrial Internet of Things (Industrie Internet der Dinge)
TOS
Type of Service
NDR
Non-Delivery Receipt
ARP-Spoofing
ARP Request Poisoning (gefälschte ARP-Pakete für Man-in-the-Middle Angriffe)
PIV
Personal Identity Verification (Mitarbeiter-Ausweis)
STD
Synchronous Time Divison (Multiplexing)
SA
Security Association
W3C
World Wide Web Consortium
IP
Internet Protocol (Internetprotokoll)
RSH
Remote Shell
SLIP
Serial Line Internet Protocol
NaaS
Network as a Service
ISAKMP
Internet Security Association and Key Management Protocol
MIB
Management Information Base (Verwaltungsdatenbank, SNMP)
PTP
Point-to-Point (Punkt zu Punkt)
MDF
Main Distribution Frame (Hauptverteiler)
NTP
Network Time Protocol (Port 123)
ADSL
Asymmetric Digital Subscriber Line (asymmetrischer digitaler Teilnehmer-Anschluss)
MAC
Media Access Control / Medium Access Control (Medienzugriffssteuerung) eindeutige 6 Byte(48Bit) Identifikator einer Netzwerkkarte
SPX
Sequence Packet Exchange (Novell Netware)
PTR
Point (DNS-Eintrag)
VTP
Virtual Trunk Protocol
DoD
Department od Defense (DoD-Modell)
MOA
Memorandum od Agreement
BGP
Border Gateway Protocol
AM
Amplitude Modulation (Amplitudenmodulation)
ICA
Independent Computer Architecture
CIFS
Common Internet File System
SNMP
Simple Network Management Protocol (UDP Port 161/162)
DDoS
Distributed Denial of Service (siehe auch DoS)
DSCP
Differentiated Service Code Point (wird bei QoS eingesetzt, DiffServ-QoS Modell)
RAID
Redundant Array of Independent Disk (auch: of inexpensive Disks)
BRI
Basic Rate Interface (Standardanschluß für ISDN-Telekommunikationsnetz)
HSDPA
High Speed Downlink Packet Access
IGP
Interior Gateway Protocol (Protokollgruppe)
HDMI
High Definition Multimedia Interface (Monitor-Anschluß)
DC
Domain Controller
VDSL
Very high bit-rate Digital Subscriber Line
TDx/Tx
Transmitter (x stellvertretend fur Wert, z. B. T5)
MTTR
Mean Time to Repair/Mean Time to Restore
RFB
Remote Frame Buffer protocol
FTPS
File Transfer Protocol Security (FTP über SSL)
PON
Passive Optical Network
NOS
Network Operation System
ECDH
Elliptic Curve Diffie-Hellman (bei WPA3 Enterprise)
Availability
Verfügbarkeitsheuristik
RTT
Round Trip Time (Paketumlaufzeit) oder Real Transfer Time
IIS
Internet Information Services (früher MS-Server)
SMF
Single Mode Fibre (LWL Glasfaser)
VPN
Virtual Private Network
SSID
Service Set Identifier (Netzwerkname im WLAN)
MTBF
Mean Time between Failure
LPR
Line Printer Remote
SDLC
Synchronous Data Link Control (Datentübertragungsprotokoll)
PMF
Protected Management Frames (WLAN-Sicherheit bei WPA3 802.11w)
UFI
Unique Firewall Identifier
CWDM
Course Wave Division Multiplexing
EAP
Extensible Authentication Protocol
HA
High Availability
UTM
Unified Threat Management (Web Security Gateway)
QSFP
Quad Small Form-Factor Pluggable
PEAP
Protected Extensible Authentication Protocol
EBCDIC
Extended Binary Coded Decimal Interchange Code (Zeichensatz)
BCP
Business Continuity Plan
EGP
Exterior Gateway Protocol (Protokollgruppe)
AD, ADS
Active Directory (Windows)
FCS
Frame Check Sequence
STP
Shielded Twisted-Pair (geschirmtes Netzwerk-Kabel) Spanning Tree Protocol (Switch-Steuerung, 802.1D)
FQDN
Fully Qualified Domain Name / Fully Qualified Distinguished Name
MITM
Man-in-the-Middle
OS
Operating System (Betriebssystem)
BootP
Boot Protocol / Bootstrap Protocol
IAB
Internet Architecture Board
ISP
Internet Service Provider (Internetdienstanbieter)
Jumbo Frame
MTU > 1522 Byte (vorwiegend für LAN für Backup oder Video, dadurch weniger Overhead)
InterNIC
Internet Network Information Center
IKE
Internet Key Exchange (Internetschlüsselaustausch)
Sonet
Synchronous Optical Network
LDAPS
LDAP Secure (Port 636)
CHAP
Challenge Handshake Authentication Protocol
BSD
Berkeley Software Distribution
FTTH
Fiber to the Home
ICANN
Internet Corporation for Assigned Names and Numbers
TACACS
Terminal Access Controller Access Control System (Alternativ zu Radius,Port 49)
SOHO
Small Office / Home Office
EUI
Extended Unique Identifier
PDU
Protocol Data Unit
PSK
Pre-Shared Key (mit anderen Teilnehmer im Voraus geteilter Schlüssel) Phase Shift Keying (Phasenumtastung, Modulationsart)
FHSS
Frequency Hopping Spread Spectrum
Mbps
Megabits per second (Megabits pro Sekunde, Mbit/s)
UTP
Unshielded Twisted Pair (nicht abgeschirmtes Kabel mit verdrillten Adernpaaren)
PPPoE
Point-to-Point Protocol over Ethernet
GLBP
Gateway Load Balancing Protocol
PKI
Public Key Infrastructure
OU
Organizational Unit (Begriff im Verzeichnisdienst wie ADS od. NDS)
AH
Authentication Header (Authentifizierungsheader)
Telco
Telefon Company (Slang fur Telefonanbieter)
NAS
Network Attached Storage (ans Netzwerk angeschloßene Festplatten)
DSU
Data Service Unit (neuerdings im Router integriert)
DES
Data Encryption Standard (symmetrische Datenverschlüsselung)
DMZ
Demilitarized Zone (Entmilitarisierte Zone, auch Perimeternetzwerk genannt)
DSLAM
Digital Subscriber Line Access Multiplexer
APIPA
Automatic Private Internet Protocol Addressing (automatische Generierung privater IP-Adresse von 169.254.1.0 - 169.254.254.255, auch Zeroconf genannt)
SMON
Switched Monitoring
RAS
Remote Access Service
ICS
Internet Connection Sharing (Internetverbindungsfreigabe)
DOCSIS
Data-Over-Cable Service Interface Specification (Netzwerkanschluß vom ISP über Koax-Kabel)
IV
Initialization Vector (Initialisierungsvektor z.B. bei WEP)
HVAC
Heating, Ventilation and Air Conditioning (Heizung, Klima und Kühlung)
CSMA/CA
Carrier Sense Multiple Access / Collision Avoidance
DaaS
Desktop as a Service
WWN
World Wide Name
RG
Radio Guide (Normbezeichnung für Koaxialkabel, z.B. RG58)
SMURF
Form eines DDoS-Angriffs, benannt nach dem Quellcode smurf.c
VNC
Virtual Network Connection (Virtuelle Netzwerkverbindung mit RFB) oder Fernsteuerungssoftware
GSM
Global System for Mobile Communications
MDI
Media Dependent Interface
WiMAX
Worldwide Interoperability for Microwave Access
OTDR
Optical Time Domain Reflectometer (Optisches Meßgerät)
ISO
International Organisation for Standardization Information Security Officer
SDSL
Symmetric Digital Subscriber Line (symmetrischer digitaler Teilnehmer-Anschluss)
WLAN
Wireless Local Area Network
AXTLK
Alien Crosstalk (Fremd-Nebensprechen)
SMS
Storage Management Services Short Message Service
CVW
Collaborative Virtual Workspace
CaaS
Communication as a Service
SOW
State of Work (Leistungsbeschreibung)
ONT
Optical Network Termination
CAN
Campus Area Network
RDx/Rx
Receiver
PUA
Privileged User Agreement
RADIUS
Remote Authentication Dial-In User Service (Authentifizierungsdienst für Remote-User, Ports 1812, 1813, 1645, 1646)
USB
Universal Serial Bus (USB 1.1, USB 2.0=480MBit/s, USB 3.0=5GBit/s, USB 3.1 Gen1=10GBit/s, USB 3.2 Gen2=20GBit/s)
Kbps
Kilobits per second (Kilobits pro Sekunde, Kbit/s)
IANA
Internet Assigned Numbers Authority
ECDSA
Elliptic Curve Digital Signature Algorithm (bei WPA3 Enterprise)
NWLINK
Microsoft IPX/SPX Protocol
XTACACS
Cisco-Variante von TACACS (Radius)
802.11b
(Wi-Fi 1) 2,4 GHz, 11 MBit/s
OCx
Optical Carrier (SONET, ca. 52MBit/s * X)
MT-RJ
Mechanical Transfer-Registered Jack
DWDM
Dense Wavelength Division Multiplexing
ARIN
American Registry for Internet Numbers (in Europa die RIPE)
OLT
Optical Line Terminal
WINS
Window Internet Name Service
AS
Autonomes System (im Bereich Routing Protokolle)
RTP
Realtime Transport Protocol (Protokoll fur Audio-/Videostream)
RJ
Registered Jack (genormte Buchse)
UPS
Uninterruptible Power Supply (unterbrechungsfreie Stromversorgung siehe auch USV)
DSL
Digital Subscriber Line (digitaler Teilnehmeranschluss)
LLDP
Link Layer Discovery Protocol
PLC
Powerline Communication
MPLS
Multiprotocol Label Switching
DCS
Distributed Computer System
XML
Extensible Markup Language
NIU
Network Interface Unit
GRE
Generic Routing Encapsulation
Packet shaper
Packet Shaping bzw. Traffic Shaping ist eine Methode zur Gewährleistung der Servicequalität (Quality of Service, QoS) des Netzwerkverkehrs.
LC
Local Connector (LC-Stecker)
IRC
Internet Relay Chat
Butt set
Testgerät für Telephonie
Cable Crimper
Crimp-Zange
TPM
Trusted Platform Module
RARP
Reverse Address Resolution Protocol
CCTV
Closed Circuit TV (Kabel-TV Anbieter)
Hz
Hertz (Frequenzeinheit)
AUP
Acceptable Use Policy (Nutzungsverordnung)
SLA
Service Level Agreement (Dienstleistungsvertrag)
OUI
Organizationally Unique Identifier (z.B.: Herstellernummer bei MAC-Adresse)
RPC
Remote Procedure Call
EIA
Electronic Industries Alliance
MS-CHAP
Microsoft Challenge Handshake Authentication Protocol
EMI
Electromagnetic Interference (Elektromagnetische Interferenz)
SaaS
Software as a Service
T3
T-Carrier Level 3 (672 Kanäle, 44,736 Mbit/s)
802.11n
(Wi-Fi 4) 2,4 + 5 GHz, 600 MBit/s, 4x4 MIMO
RIPE
Réseaux IP Européens, RIR für Europa - heute RIPE NCC
CDMA
Code Division Multiple Access
ITS
Intelligent Transportation System
L2F
Layer 2 Forwarding
NIS
Network Information Service
QPSK
Quadrature Phase-Shift Keying (Modulationsverfahren)
802.11ac
(Wi-Fi 5) 5 GHz, 867 MBit/s - 6,936 GBit/s, 8x8 MIMO
IRTF
Internet Research Task Force
ICMP
Internet Control Message Protocol (Ping)
SSL
Secure Sockets Layer
SFTP
Secure File Transfer Protocol (FTP über SSH)
SPS
Standby Power Supply (Standby-Stromversorgung)
POTS
Plain Old Telephone System (analoges Telefonsystem)
MIMO
Multiple Input Multiple Output
DTLS
Datagram Transport Layer Security (Verschlüsselungsprotokoll über UDP)
APT
Advanced Persistent Threat Advanced Persistent Attacks  
NEXT
Near End Crosstalk (Übersprechen)
WEP
Wired Equivalent Privacy
TIA
Telecommunications Industry Association
RTO
Recovery Time Objective
WAP
Wireless Application Protocol / Wired Access Point
A
Resource-Eintrag in DNS für Adresse
TKIP
Temporal Key Integrity Protocol
VoIP
Voice over IP (Internet-Telefonie, Port 1720)
802.11g
(Wi-Fi 3) 2,4 GHz, 54 MBit/s
PBX
Private Branch Exchange (Telefon-Switch)
FDDI
Fiber Distributed Data Interface
SC
Standard Connector / Subscriber Connector (Glasfaseranschluss)
Gbps
Giga bits per second (Gigabits pro Sekunde, GBit/s)
ESP
Encapsulated Security Packets
ACK
Acknowlegde (Kommunikations-Steuerungs Kommando)
PAT
Port Address Translation
Kerberos
Authentifizierungsdienst (UDP Port 88)
PAN
Personal Area Network
SFP
Small Form-factor Pluggable (auch Mini GBIC genannt)
VRRP
Virtual Router Redundancy Protocol
SMX
Spatial-Multiplexing
NFS
Network File Service
MAU
Multistation Access Unit
LWAPP
Light Weight Access Point Protocol (Cisco Protokoll)
Integrity
Echtheit
Stratum
Schichtbezeichnung im NTP-Protokoll
OSPF
Open Shortest Path First (Routing Protokoll für kürzesten Pfad)
SDN
Software Defined Network
SAN
Storage Area Network (Festplatten-Netzwerk, blocklevel, meist über Fiberchannel)
SHA
Secure Hash Algorithm
IGRP
Interior Gateway Routing Protocol (Cisco Routing-Protokoll)
POP3
Post Office Protocol Version 3 (TCP Port 110, sicher Port 995)
L2TP
Layer 2 Tunneling Protocol
PDoS
Permanenr Denial of Service
MaaS
Mobility as a Service
MSAU
MultiStation Access Unit
IPS
Intrusion Prevention System
TFTP
Trivial File Transfer Protocol (FTP ohne Sicherheit, UDP Port 69)
SOP
Standard Operation Procedure
PSTN
Public Switched Telephone Network (Festnetz)
NVP
Nominal Velocity of Propagation (Ausbreitungsgeschwindigkeit)
AAL
ATM Adaption Layer
LED
Light Emitting Diode (Leuchtdiode)
LWAP
Light Weight Access Point (Cisco)
AV
Anti-Virus
S/STP
Screened STP-Kabel
URL
Uniform Resource Locator
ST
Straight Tip oder Snap Twist (LWL-Stecker)
SLAAC
Stateless Address Auto Configuration
RFP
Request for Proposal
GPO
Group Policy Object
DMVPN
Dynamic Multipoint VPN
RDP
Remote Desktop Protocol (MS-Fernwartungsprotokoll, TCP Port 3389)
IPAM
IP Address Management
SVC
Switched Virtual Circuit
Rogue Access Point
offener WLAN-Accesspoint um Besucher anzulocken
TCP/IP
Transmission Control Protocol / Internet Protocol
FDM
Frequency Division Multiplexing
Attenuation
Dämpfung
InfiniBand
High-Speed switching (100/200 Gbit/s, Alternative zu Fibre Channel)
NTFS
New Technology File System (Filesystem von Microsoft)
CoS
Class of Service
OSI
Open Systems Interconnection (OSI-Modell)
CA
Certificate Authority
DNAT
Destination Network Address Translation
ESSID
Extended Service Set Identifier (WLAN)
Single-Sign-On
Anmeldung und Authentifizierung auf mehreren Systeme
SOA
Start of Authority (Zonenbeginn)
SYSLOG
System log
FEP
Fluorinated Ethylene Polymer (für Plemum-Kabel, feuersicher)
SCTP
Stream Control Transmission Protocol
UNC
Universal Naming Convention (Allgemeine Namenskonvention)
CTI
Computer Telephony Integration
TLAP
TokenTalk Link Access Protocol (zur Übertragung zwischen den Knoten in einem Token Ring-Netz)
EDNS
Extension Mechanisms for DNS
BYOD
Bring your own device
nm
Nanometer (=10-9m = 0,000 000 001m)
Nmap
Network mapper (Port Scanner)
RFC
Request for Comment
Telnet
Teletype Network (Dateiübertragungsprotokoll, TCP Port 23)
XDSL
Extended Digital Subscriber Line (erweiterter digitaler Teilnehmeranschluss)
PDC
Primary Domain Controller (Windows NT)
IESG
Internet Engineering Steering Group
DAS
Direct Attached Storage (z.B.: USB-Festplatte, eSATA-Festplatte)
LSA
Link State Advertisements
CIDR
Classless Inter-Domain Routing
MTU
Maximum Transfer Unit (Ethernet Frame)
DoS
Denial of Service (Dienstverweigerung, siehe auch DDoS)
Cable certifier
Kabel Zertivizierungsgerät
IPSec
Internet Protocol Security (verschlüßeltes Internetprotokollsicherheit)
VTC
Video Teleconference
NDP
Neighbor Discovery Protocol (arbeitet mit ICMPv6)
BNC
British Naval Connector / Bayonet Niell-Concelman (BNC-Steckverbinder)
KVM
Keyboard Video Mouse Switch
NetBEUI
NetBIOS Extended User Interface
RPO
Recovery Point Objective
T1
T-Carrier Level 1 (24 x 64 kBit/s Daten-Kanäle, 1,544 Mbit/s)
PAP
Password Authentication Protocol
GPRS
General Packet Radio Service
RFI
Radio Frequency Interface
TA
Terminal Adapter
FC
Fibre Channel (Hochgeschwindigkeits Topologie zur Anbindung von Festplatten an Server, LWL, SAN)
TAN
Transaktionsnummer, mTAN = mobile Transaktionsnummer
AAA
Authentication, Autorization and Accounting (Authentifizierung, Autorisierung und Abrechnung)
NAC
Network Access Control (Netzwerk-Zugangskontrolle, IEEE 802.1X)
MX
Mail Exchanger
CNAME
Canonical Name (kanonischer Name)

SIPS

Session Initiation Protocol Secure (sicheres Protokoll für die IP-Telefonie, Port 5061)

IPv4
Internet Protocol version 4 (64 Bit lang)
WPS
WiFi Protected Setup (automatisierte WLAN-Client-Einrichtung)
NIC
Network Interface Card (Netzwerkkarte)
TLS
Transport Layer Security (Weiterentwicklung zu SSL)
QoS
Quality of Service (garantierte Dienstleitung))
PGP
Pretty Good Privacy (Verschlüsselungsprogramm)
PRI
Primary Rate Interface (Primärmultiplexanschluss, PMxA)
Coupler
Verbindungsstück (LWL oder Kupfer)
Evil Twin
in betrügerischer Absicht platzierter Wi-Fi-Zugriffspunkt mit bekannter SSID
MOU
Memorandum of Understanding (Absichtserklärung)
SNAT
Source Network Address Translation (Statische Netzwerk-Adressübersetzung)
DNS
Domain Name Service / Domain Name Server / Domain Name System (UDP Port 53)
CASB
Cloud Access Security Broker
ESD
Electrostatic Discharge (Elektrostatische Entladung)
IBSSID
Independent Basic Set Identification (Ad-hoc-WLAN)
NGFW
Next Generation Firewall
IPv6
Internet Protocol version 6 (128 Bit lang)
BPDU
Bridge Protocol Data Unit
HDLC
High-Level Data Link Control (bei X.25 eingesetzt)
ATP
AppleTalk Transport Protocol
VRF
Virtual Routing Forwarding
CPU
Central Processing Unit (Prozessor)
X.25
CCITT (heute ITU) Packet Switching Protocol
BLE
Bluetooth Low Energy
FM
Frequency Modulation (Frequenzmodulation)
iSCSI
Internet Small Computer System Interface
SIEM
Security Information and Event Management
ASP
Application Service Provider (Anwendungs-Dienstleister)
PPP
Point-to-Point Protocol
SGCP
Simple Gateway Control Protocol
MMF
Multimode Fiber (Multimode-Glasfaser)
APC
Angle Polished Connector (LWL-Adapter)
AP
Access Point (WLAN)
DLP
Data Leak Prevention/ Data Loss Prevention
UMTS
Universal Mobile Telecommunications System
CSMA/CD
Carrier Sense Multiple Access / Collision Detection
UPC
Ultra Polished Connector
SYN
Synchronize (Kommunikationssteuerungskommando)
GBIC
Gigabit Interface Converter
Punch Down Tool
LSA-Werkzeug zum Auflegen der LAN-Kabel auf Patch-Panel
LEC
Local Exchange Carrier (Teilnehmernetzbetreiber)
USV
Unterbrechungsfreie Stromversorgung
CAT
Computer and Telephone
IDS
Intrusion Detection System (Angrifferkennungssystem)
RIR
Regional Internet Registries
FCoE
Fiber Channel over Ethernet
DR
Designated Router
IoT
Internet of Things (Internet der Dinge)
NGN
Next Generation Network (unterschiedliche neue WAN-Technologien)
IGMP
Internet Group Multicast Protocol Internet Group Management Protocol
TMS
Transportation Management System
MSDS
Material Safety Data Sheet
RMON
Remote Monitoring
LLC
Logical Link Control
SCP
Secure Copy Protocol
VLAN
Virtual Local Area Network (Virtuelles lokales Netzwerk)
RF
Radio Frequency
DAD
Duplicate Address Detection (bei IPv6)
LACP
Link Aggregation Control Protocol
LTE
Long Term Evolution
XMPP
Extensible Messaging and Presence Protocol (erweiterbares Nachrichten- und Anwesenheitsprotokoll; früher Jabber, Port 5222,5269,5223)
EFS
Encrypting File System (verschlüsseltes Dateisystem unter Windows)
DLR
Device Level Ring
HIDS
Hostbased Intrusion Detection System
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