All Acronyms recommended for Security+ 401 exam
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| 3DES | 6.2 : Triple Digital Encryption Standard
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| 802.1x | 1.2 : Authenticate and Secure wireless and wired LANs
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| AAA | : Authentication, Authorization and Accounting
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| ACL | 5.2 : Access Control List
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| AES | 6.2 : Advanced Encryption Standard
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| AES256 | 6.2 : Advanced Encryption Standards 256-bit
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| AH | : Authentication Header
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| ALE | 2.1 : Annualized Loss Expectancy
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| AP | : Access Point
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| API | 3.6 : Application Programming Interface
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| APT | 2.1 : Advanced Persistent Threat
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| ARO | 2.1 : Annualized Rate of Occurrence
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| ARP | 1.4 : Address Resolution Protocol
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| ASLR | : Address Space Layout Randomization
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| ASP | : Application Service Provider
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| AUP | 2.1 : Acceptable Use Policy
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| AV | 4.3 : Antivirus
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| BAC | 2.8 : Business Availability Center
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| BCP | 2.8 : Business Continuity Planning
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| BIA | 2.8 : Business Impact Analysis
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| BIOS | : Basic Input/Output System
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| BPA | 2.2 : Business Partners Agreement
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| BPDU | : Bridge Protocol Data Unit
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| BYOD | 4.2 : Bring Your Own Device
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| CA | 6.3 : Certificate Authority
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| CAC | 5.2 : Common Access Card
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| CAN | 1.1 : Controller Area Network
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| CAPTCHA | 5.2 : Completely Automated Public Turing test to tell Computers and Humans Apart
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| CAR | : Corrective Action Report
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| CCMP | 1.5 : Counter-mode/CBC-MAC Protocol
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| CCTV | 2.8 : Closed-Circuit Television
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| CERT | 2.5 : Computer Emergency Response Team
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| CFB | : Cipher Feedback
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| CHAP | 5.2 : Challenge Handshake Authentication Protocol
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| CIO | : Chief Information Officer
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| CIRT | 2.5 : Computer Incident Response Team
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| CMS | : Content Management System
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| COOP | 2.8 : Continuity Of Operation Planning
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| CP | 2.8 : Contingency Planning
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| CRC | : Cyclical Redundancy Check
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| CRL | 6.3 : Certificate Revocation List
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| CRM | : Customer Relationship Management
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| CSO | : Chief Security Officer
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| CSP | 1.3 : Cloud Service Provider
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| CSR | 6.3 : Certificate Signing Request
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| CSRF | 3.5 : Cross-Site Request Forgery
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| CSU | : Channel Service Unit
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| CTO | : Chief Technology Officer
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| DAC | 5.2 : Discretionary Access Control
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| DBA | : Database Administrator
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| DDoS | 3.2 : Distributed Denial of Service
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| DEP | : Data Execution Prevention
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| DES | 6.2 : Digital Encryption Standard
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| DHCP | 1.4 : Dynamic Host Configuration Protocol
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| DHE | 6.2 : Data-Handling Electronics
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| DHE | 6.2 : Diffie-Hellman Ephemeral
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| DLL | : Dynamic Link Library
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| DLP | 2.3 : Data Loss Prevention
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| DMZ | 1.3 : Demilitarized Zone
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| DNAT | 1.3 : Destination Network Address Transaction
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| DNS | 1.4 : Domain Name Service (Server)
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| DoS | 3.2 : Denial of Service
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| DRP | 2.8 : Disaster Recovery Plan
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| DSA | 6.2 : Digital Signature Algorithm
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| DSL | : Digital Subscriber Line
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| DSU | : Data Service Unit
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| EAP | 1.5 : Extensible Authentication Protocol
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| ECC | 6.1 : Elliptic Curve Cryptography
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| ECDHE | 6.2 : Elliptic Curve Diffie-Hellman Exchange
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| ECDSA | 6.1 : Elliptic Curve Digital Signature Algorithm
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| EFS | : Encrypted File System
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| EMI | : Electromagnetic Interference
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| ERP | : Enterprise Resource Planning
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| ESN | : Electronic Serial Number
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| ESP | : Encapsulated Security Payload
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| FACL | : File system Access Control List
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| FCoE | 1.4 : Fibre Channel over Ethernet
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| FDE | 4.4 : Full Disk Encryption
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| FQDN | : Fully Qualified Domain Name
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| FRR | : FALSE Rejection Rate
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| FTP | 1.4 : File Transfer Protocol
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| FTPS | 1.4 : Secured File Transfer Protocol
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| GCM | : Galois Counter Mode
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| GPG | 6.2 : GNU Privacy Guard
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| GPO | 5.3 : Group Policy Object
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| GPS | 4.2 : Global Positioning System
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| GPU | : Graphic Processing Unit
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| GRE | : Generic Routing Encapsulation
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| HA | 2.8 : High Availability
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| HDD | : Hard Disk Drive
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| HIDS | 4.3 : Host-based Intrusion Detection System
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| HIPS | 4.3 : Host-based Intrusion Prevention System
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| HMAC | 6.2 : Hashed Message Authentication Code
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| HOTP | 5.2 : HMAC-based One Time Password
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| HSM | 4.4 : Hardware Security Module
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| HSRP | : Hot Standby Router Protocol
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| HTML | 1.4 : Hypertext Markup Language
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| HTTP | 1.4 : Hypertext Transfer Protocol
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| HTTPS | 1.4 : Hypertext Transfer Protocol over SSL
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| HVAC | 2.7 : Heating, Ventilation and Air Conditioning
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| IaaS | 1.3 : Infrastructure as a Service
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| ICMP | 1.4 : Internet Control Message Protocol
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| ICS | : Industrial Control Systems
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| ID | : Identification
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| IDEA | : International Data Encryption Algorithm
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| IDF | : Intermediate Distribution Frame
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| IdP | : Identity Provider
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| IDS | 1.1 : Intrusion Detection System
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| IKE | 6.1 : Internet Key Exchange
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| IM | : Instant Messaging
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| IMAP4 | 1.4 : Internet Message Access Protocol v4
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| IoT | : Internet of Things
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| IP | : Internet Protocol
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| IPS | 1.1 : Intrusion Prevention System
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| IPSec | 1.4 : Internet Protocol Security
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| IPv4 | 1.4 : IP version 4 (x.x.x.x)
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| IPv6 | 1.4 : IP version 6 (FE80:FF00:FF00:FF00:FF00:FF00:FF00:FF00)
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| IR | 2.5 : Incident Response
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| IRC | 1.4 : Internet Relay Chat
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| IRP | 2.5 : Incident Response Procedure
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| ISA | 2.2 : Interconnection Security Agreement
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| iSCSI | 1.4 : Internet Small Computer System Interface (TCP based Storage Area Network)
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| ISP | : Internet Service Provider
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| ISSO | : Information Systems Security Officer
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| ITCP | 2.8 : IT Contingency Plan
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| IV | : Initialization Vector
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| JBOD | : Just a Bunch Of Disks
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| KDC | 5.1 : Key Distribution Center
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| KEK | : Key Encryption Key
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| L2TP | : Layer 2 Tunneling Protocol
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| LAN | 1.1 : Local Area Network
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| LDAP | 5.1 : Lightweight Directory Access Protocol
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| LEAP | 1.5 : Lightweight Extensible Authentication Protocol
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| MaaS | 1.3 : Monitoring as a Service
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| MAC | 2.9 or : Mandatory Access Control or Media Access Control or Message Authentication Code
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| MAN | 1.1 : Metropolitan Area Network
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| MBR | 4.4 : Master Boot Record
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| MD5 | 6.2 : Message Digest 5
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| MDF | : Main Distribution Frame
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| MITM | 3.2 : Man-In-The-Middle
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| MOU | 2.2 : Memorandum Of Understanding
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| MPLS | : Multi-Protocol Layer Switch
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| MSCHAP | 5.3 : Microsoft Challenge Handshake Authentication Protocol
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| MTBF | 2.1 : Mean Time Between Failures
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| MTTF | 2.1 : Mean Time To Failure
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| MTTR | 2.1 : Mean Time To Recover
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| MTU | : Maximum Transmission Unit
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| NAC | 1.3 : Network Access Control
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| NAT | 1.3 : Network Address Translation
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| NDA | 2.2 : Non-Disclosure Agreement
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| NFC | 3.4 : Near Field Communication
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| NIDS | 3.6 : Network-based Intrusion Detection System
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| NIPS | 3.6 : Network-based Intrusion Prevention System
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| NIST | : National Institute of Standards and Technology
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| NOS | 1.1 : Network Operating System
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| NTFS | : New Technology File System
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| NTLM | 6.2 : New Technology LANMAN
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| NTP | 1.1 : Network Time Protocol
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| OAUTH | 1.5 : Open Authorization
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| OCSP | 6.3 : Online Certificate Status Protocol
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| OLA | 2.2 : Open License Agreement
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| OS | : Operating System
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| OVAL | : Open Vulnerability Assessment Language
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| P2P | : Peer to Peer
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| PaaS | 1.3 : Platform as a Service
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| PAC | : Proxy Auto Configuration
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| PAM | : Pluggable Authentication Modules
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| PAP | 5.2 : Password Authentication Protocol
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| PAT | : Port Address Translation
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| PBKDF2 | 6.2 : Password-Based Key Derivation Function 2
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| PBX | : Private Branch Exchange
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| PCAP | : Packet Capture
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| PEAP | 1.5 : Protected Extensible Authentication Protocol
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| PED | : Personal Electronic Device
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| PFS | : Perfect Forward Secrecy
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| PGP | : Pretty Good Privacy
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| PII | : Personally Identifiable Information
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| PIV | : Personal Identity Verification
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| PKI | 6.3 : Public Key Infrastructure
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| POTS | : Plain Old Telephone Service
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| PPP | : Point-to-Point Protocol
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| PPTP | : Point-to-Point Tunneling Protocol
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| PSK | : Pre-Shared Key
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| PTZ | : Pan-Tilt-Zoom
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| RA | : Recovery Agent
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| RA | : Registration Authority
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| RAD | : Rapid Application Development
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| RADIUS | 5.1 : Remote Authentication Dial-In User Server
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| RAID | : Redundant Array of Inexpensive Disks
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| RAS | : Remote Access Server
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| RBAC | : Role-Based Access Control
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| RBAC | : Rule-Based Access Control
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| RC4 | 6.2 : RSA Variable Key Size Encryption Algorithm
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| RDP | 1.4 : Remote Desktop Protocol
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| RIPEMD | 6.2 : RACE Integrity Primitives Evaluation Message Digest
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| ROI | : Return On Investment
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| RPO | : Recovery Point Objective
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| RSA | 6.2 : Rivest, Shamir and Adleman
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| RTBH | : Remote Triggered Black Hole
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| RTO | : Recovery Time Objective
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| RTP | : Real-time Transport Protocol
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| S/MIME | 1.4 : Secure/Multipurpose Internet Mail Extensions
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| SaaS | 1.3 : Software as a Service
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| SAML | 5.1 : Security Assertions Markup Language
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| SAN | 4.4 : Storage Area Network
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| SCADA | 4.5 : System Control and Data Acquisition
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| SCAP | : Security Content Automation Protocol
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| SCEP | : Simple Certificate Enrollment Protocol
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| SCP | 1.4 : Secure Copy
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| SCSI | : Small Computer System Interface
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| SDLC | : Software Development Life Cycle
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| SDLM | : Software Development Life Cycle Methodology
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| SEH | : Structured Exception Handler
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| SFTP | 1.4 : Secured File Transfer Protocol
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| SHA | : Secure Hashing Algorithm
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| SHTTP | 1.4 : Secure Hypertext Transfer Protocol
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| SIEM | : Security Information and Event Management
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| SIM | : Subscriber Identity Module
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| SLA | 2.2 : Service Level Agreement
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| SLE | 2.1 : Single Loss Expectancy
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| SMS | : Short Message Service
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| SMTP | 1.4 : Simple Mail Transfer Protocol
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| SMTPS | 1.4 : Simple Mail Transfer Protocol Secure
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| SNMP | 1.4 : Simple Network Management Protocol
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| SOAP | : Simple Object Access Protocol
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| SONET | : Synchronous Optical Network Technologies
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| SPIM | 3.2 : Spam over Internet Messaging
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| SQL | : Structured Query Language
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| SSD | : Solid State Drive
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| SSH | 1.4 : Secure Shell
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| SSL | 1.4 : Secure Sockets Layer
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| SSO | : Single Sign-On
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| STP | : Shielded Twisted Pair or Spanning Tree Protocol
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| TACACS+ | 5.1 : Terminal Access Controller Access control system
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| TCP/IP | 1.4 : Transmission Control Protocol/Internet Protocol
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| Telnet | 1.4 : Unsecured remote access terminal emulator replaced with SSH
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| TFTP | 1.4 : Trivial File Transfer Protocol
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| TGT | : Ticket Granting Ticket
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| TKIP | 1.5 : Temporal Key Integrity Protocol
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| TLS | 1.4 : Transport Layer Security
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| TOTP | 5.2 : Time-based One-Time Password
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| TPM | 4.4 : Trusted Platform Module
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| TSIG | : Transaction Signature
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| UAT | : User Acceptance Testing
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| UDP | : User Datagram Protocol
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| UEFI | : Unified Extensible Firmware Interface
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| UPS | : Uninterruptable Power Supply
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| URI | : Uniform Resource Identifier
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| URL | : Universal Resource Locator
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| USB | : Universal Serial Bus
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| UTM | : Unified Threat Management
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| UTP | : Unshielded Twisted Pair
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| VDI | : Virtualization Desktop Infrastructure
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| VLAN | 1.3 : Virtual Local Area Network
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| VLSM | : Variable Length Subnet Masking
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| VM | : Virtual Machine
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| VoIP | : Voice over IP
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| VPN | : Virtual Private Network
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| VTC | : Video Teleconferencing
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| WAF | : Web-Application Firewall
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| WAP | : Wireless Access Point
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| WEP | 1.5 : Wired Equivalent Privacy
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| WIDS | 3.6 : Wireless Intrusion Detection System
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| WIPS | 3.6 : Wireless Intrusion Prevention System
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| WPA | 1.5 : WiFi Protected Access
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| WPA2 | 1.5 : WiFi Protected Access 2
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| WPS | : WiFi Protected Setup
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| WTLS | : Wireless TLS
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| XML | : Extensible Markup Language
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| XSRF | 3.5 : Cross-Site Request Forgery
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| XSS | 3.5 : Cross-Site Scripting
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|
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