CompTIA Security+ Acronyms

3DES Triple Digital Encryption Standard

AAA Authentication, Authorization, and Accounting

ABAC Attribute-based Access Control

ACL Access Control List

AES Advanced Encryption Standard

ES256 Advanced Encryption Standards 256bit

AH Authentication Header

ALE Annualized Loss Expectancy

AP Access Point

API Application Programming Interface

APT Advanced Persistent Threat

ARO Annualized Rate of Occurrence

ARP Address Resolution Protocol

ASLR Address Space Layout Randomization

ASP Application Service Provider

AUP Acceptable Use Policy

AV Antivirus

BAC Business Availability Center

BCP Business Continuity Planning

BIA Business Impact Analysis

BIOS Basic Input/Output System

BPA Business Partners Agreement

BPDU Bridge Protocol Data Unit

BYOD Bring Your Own Device

CA Certificate Authority

CAC Common Access Card

CAN Controller Area Network

CAPTCHA Completely Automated Public Turing Test to Tell Computers and Humans Apart

CAR Corrective Action Report

CBC Cipher Block Chaining

CCMP Counter-Mode/CBC-Mac Protocol

CCTV Closed-circuit Television

CER Certificate

CERT Computer Emergency Response Team

CFB Cipher Feedback

CHAP Challenge Handshake Authentication Protocol

CIO Chief Information Officer

CIRT Computer Incident Response Team

CMS Content Management System

COOP Continuity of Operations Plan

COPE Corporate Owned, Personally Enabled

CP Contingency Planning

CRC Cyclical Redundancy Check

CRL Certificate Revocation List

CSO Chief Security Officer

CSP Cloud Service Provider

CSR Certificate Signing Request

CSRF Cross-site Request Forgery

CSU Channel Service Unit

CTM Counter-Mode

CTO Chief Technology Officer

CTR CYOD Click-through rate Choose Your Own Device

DAC Discretionary Access Control

DBA Database Administrator

DDoS Distributed Denial of Service

DEP Data Execution Prevention

DER Distinguished Encoding Rules

DES Digital Encryption Standard

DHCP Dynamic Host Configuration Protocol

DHE Data-Handling Electronics

DHE Diffie-Hellman Ephemeral

DLL Dynamic Link Library

DLP Data Loss Prevention

DMZ Demilitarized Zone

DNAT Destination Network Address Transaction

DNS Domain Name Service (Server)

DoS Denial of Service

DRP Disaster Recovery Plan

DSA Digital Signature Algorithm

DSL Digital Subscriber Line

DSU Data Service Unit

EAP Extensible Authentication Protocol

ECB Electronic Code Book

ECC Elliptic Curve Cryptography

ECDHE Elliptic Curve Diffie-Hellman Ephemeral

ECDSA Elliptic Curve Digital Signature Algorithm

EFS Encrypted File System

EMI Electromagnetic Interference

EMP Electro Magnetic Pulse

ERP Enterprise Resource Planning

ESN Electronic Serial Number

ESP Encapsulated Security Payload

FACL File System Access Control List

FDE Full Disk Encryption

FRR False Rejection Rate

FTP File Transfer Protocol

FTPS Secured File Transfer Protocol

GCM Galois Counter Mode

GPG Gnu Privacy Guard

GPO Group Policy Object

GPS Global Positioning System

GPU Graphic Processing Unit

GRE Generic Routing Encapsulation

HA High Availability

HDD Hard Disk Drive

HIDS Host-based Intrusion Detection System

HIPS Host-based Intrusion Prevention System

HMAC Hashed Message Authentication Code

HOTP HMAC-based One-Time Password

HSM Hardware Security Module

HTML Hypertext Markup Language

HTTP Hypertext Transfer Protocol

HTTPS Hypertext Transfer Protocol over SSL/TLS

HVAC Heating, Ventilation and Air Conditioning

IaaS Infrastructure as a Service

ICMP Internet Control Message Protocol

ICS Industrial Control Systems

ID Identification

IDEA International Data Encryption Algorithm

IDF Intermediate Distribution Frame

IdP Identity Provider

IDS Intrusion Detection System

IEEE Institute of Electrical and Electronic Engineers

IKE Internet Key Exchange

IM Instant Messaging

IMAP4 Internet Message Access Protocol v4

IoT Internet of Things

IP Internet Protocol

IPSec Internet Protocol Security

IR Incident Response

IR Infrared

IRC Internet Relay Chat

IRP Incident Response Plan

ISA Interconnection Security Agreement

ISP Internet Service Provider

ISSO Information Systems Security Officer

ITCP IT Contingency Plan

IV Initialization Vector

KDC Key Distribution Center

KEK Key Encryption Key

L2TP Layer 2 Tunneling Protocol

LAN Local Area Network

LDAP Lightweight Directory Access Protocol

LEAP Lightweight Extensible Authentication Protocol

MaaS Monitoring as a Service

MAC Mandatory Access Control

MAC Media Access Control

MAC Message Authentication Code

MAN Metropolitan Area Network

MBR Master Boot Record

MD5 Message Digest 5

MDF Main Distribution Frame

MFD Multi-function Device

MITM Man-in-the-Middle

MMS Multimedia Message Service

MOA Memorandum of Agreement

MOU Memorandum of Understanding

MPLS Multi-protocol Label Switching

MSCHAP Microsoft Challenge Handshake Authentication Protocol

MSP Managed Service Provider

MTBF Mean Time Between Failures

MTTF Mean Time to Failure

MTTR Mean Time to Recover or Mean Time to Repair

MTU Maximum Transmission Unit

NAC Network Access Control

NAT Network Address Translation

NDA Non-disclosure Agreement

NFC Near Field Communication

NIDS Network-based Intrusion Detection System

NIPS Network-based Intrusion Prevention System

NIST National Institute of Standards & Technology

NTFS New Technology File System

NTLM New Technology

LAN Manager

NTP Network Time Protocol

OAUTH Open Authorization

OCSP Online Certificate Status Protocol

OID Object Identifier

OS Operating System

OTA Over The Air OVAL Open Vulnerability Assessment Language

P12 PKCS #12 P2P Peer to Peer PaaS Platform as a Service PAC Proxy Auto Configuration

PAM Pluggable Authentication Modules

PAP Password Authentication Protocol

PAT Port Address Translation

PBKDF2 Password-based Key Derivation Function 2

PBX Private Branch Exchange

PCAP Packet Capture

PEAP Protected Extensible Authentication Protocol

PED Personal Electronic Device

PEM Privacy-enhanced Electronic Mail

PFS Perfect Forward Secrecy

PFX Personal Exchange Format

PGP Pretty Good Privacy

PHI Personal Health Information

PII Personally Identifiable Information

PIV Personal Identity Verification

PKI Public Key Infrastructure

POP Post Office Protocol

POTS Plain Old Telephone Service

PPP Point-to-Point Protocol

PPTP Point-to-Point Tunneling Protocol

PSK Pre-shared Key

PTZ Pan-Tilt-Zoom

RA Recovery Agent

RA Registration Authority

RAD Rapid Application Development

RADIUS Remote Authentication Dial-in User Server

RAID Redundant Array of Inexpensive Disks

RAS Remote Access Server

RAT Remote Access Trojan

RBAC Role-based Access Control

RBAC Rule-based Access Control

RC4 Rivest Cipher version 4

RFID Radio Frequency Identifier

RIPEMD RACE Integrity Primitives Evaluation Message Digest

ROI Return on Investment

RPO Recovery Point Objective

RSA Rivest, Shamir, & Adleman

RTBH Remotely Triggered Black Hole

RTO Recovery Time Objective

RTOS Real-time Operating System

RTP Real-time Transport Protocol

S/MIME Secure/Multipurpose Internet Mail Extensions

SaaS Software as a Service

SAML Security Assertions Markup Language

SAN Storage Area Network

SAN Subject Alternative Name

SCADA System Control and Data Acquisition

SCAP Security Content Automation Protocol

SCEP Simple Certificate Enrollment Protocol

SCSI Small Computer System Interface

SDK Software Development Kit

SDLC Software Development Life Cycle

SDLM Software Development Life Cycle Methodology

SDN Software Defined Network

SED Self-encrypting Drive

SEH Structured Exception Handler

SFTP Secured File Transfer Protocol

SHA Secure Hashing Algorithm

SHTTP Secure Hypertext Transfer Protocol

SIEM Security Information and Event Management

SIM Subscriber Identity Module

SLA Service Level Agreement

SLE Single Loss Expectancy

SMS Short Message Service

SMTP Simple Mail Transfer Protocol

SMTPS Simple Mail Transfer Protocol Secure

SNMP Simple Network Management Protocol

SOAP Simple Object Access Protocol

SoC System on Chip

SPIM Spam over Internet Messaging

SQL Structured Query Language

SRTP Secure Real-Time Protocol

SSD Solid State Drive SSH Secure Shell

SSL Secure Sockets Layer

SSO Single Sign-on

STP Shielded Twisted Pair

TACACS+ Terminal Access Controller Access Control System Plus

TCP/IP Transmission Control Protocol/Internet Protocol

TGT Ticket Granting Ticket

TKIP Temporal Key Integrity Protocol

TLS Transport Layer Security

TOTP Time-based One-time Password

TPM Trusted Platform Module

TSIG Transaction Signature

UAT User Acceptance Testing

UAV Unmanned Aerial Vehicle

UDP User Datagram Protocol

UEFI Unified Extensible Firmware Interface

UPS Uninterruptable Power Supply

URI Uniform Resource Identifier

URL Universal Resource Locator

USB Universal Serial Bus


UTM Unified Threat Management

UTP Unshielded Twisted Pair

VDE Virtual Desktop Environment

VDI Virtual Desktop Infrastructure

VLAN Virtual Local Area Network

VLSM Variable Length Subnet Masking

VM Virtual Machine

VoIP Voice over IP

VPN Virtual Private Network

VTC Video Teleconferencing

WAF Web Application Firewall

WAP Wireless Access Point

WEP Wired Equivalent Privacy

WIDS Wireless Intrusion Detection System

WIPS Wireless Intrusion Prevention System

WORM Write Once Read Many

WPA WiFi Protected Access

WPA2 WiFi Protected Access 2

WPS WiFi Protected Setup

WTLS Wireless TLS

XML Extensible Markup Language

XOR Exclusive Or XSRF Cross-site Request Forgery

XSS Cross-site Scripting

Looking for practice tests and online courses? Visit

CompTIA A+ 1002 Objectives

1.0 Operating Systems 27%

2.0 Security 24%

3.0 Software Troubleshooting 26%

4.0 Operational Procedures 23%

1.0 Operating Systems

1.1 Compare and contrast common operating system types and their purposes.

• 32-bit vs. 64-bit • Workstation operating systems • Cell phone/tablet operating systems • Vendor-specific limitations • Compatibility concerns between operating systems

1.2 Compare and contrast features of Microsoft Windows versions.

• Windows 7 • Windows 8 • Windows 8.1 • Windows 10 • Corporate vs. personal needs

1.3 Summarize general OS installation considerations and upgrade methods.

• Boot methods • Type of installations • Partitioning • File system types/formatting • Load alternate third-party drivers when necessary • Workgroup vs. Domain setup • Time/date/region/language settings • Driver installation, software, and Windows updates • Factory recovery partition • Properly formatted boot drive with the correct partitions/format • Prerequisites/hardware compatibility • Application compatibility • OS compatibility/upgrade path

1.4 Given a scenario, use appropriate Microsoft command line tools.

• shutdown • dism • sfc • chkdsk • diskpart • taskkill • gpupdate • gpresult • format • copy • xcopy • robocopy • net use • net user • [command name] /? • Commands available with standard privileges vs. administrative privileges

1.5 Given a scenario, use Microsoft operating system features and tools.

• Administrative • MSConfig • Task Manager • Disk Management • System utilities

1.6 Given a scenario, use Microsoft Windows Control Panel utilities.

• Internet Options • Display/Display Settings • User Accounts • Credential Manager • Programs and features • HomeGroup • Devices and Printers • Sound • Troubleshooting • Network and Sharing Center • Device Manager • Bitlocker • Sync Center

1.7 Summarize application installation and configuration concepts.

• System requirements • OS requirements • Methods of installation and deployment • Local user permissions

1.8 Given a scenario, configure Microsoft Windows networking on a client/desktop.

• HomeGroup vs. Workgroup • Domain setup • Network shares/administrative shares/mapping drives • Printer sharing vs. network printer mapping • Establish networking connections • Proxy settings • Remote Desktop Connection • Remote Assistance • Home vs. Work vs. Public network settings • Firewall settings

1.9 Given a scenario, use features and tools of the Mac OS and Linux client/desktop operating systems.

• Best practices • Tools • Features • Basic Linux commands

2.0 Security

2.1 Summarize the importance of physical security measures.

• Mantrap • Badge reader • Smart card • Security guard • Door lock • Biometric locks • Hardware tokens • Cable locks • Server locks • USB locks • Privacy screen • Key fobs • Entry control roster

2.2 Explain logical security concepts.

• MDM policies • Port security • MAC address filtering • Certificates • Antivirus/Anti-malware • Firewalls • User authentication/strong passwords • Multifactor authentication • Directory permissions • VPN • DLP • Access control lists • Smart card • Email filtering • Trusted/untrusted software sources • Principle of least privilege

2.3 Compare and contrast wireless security protocols and authentication methods

• Protocols and encryption • Authentication

2.4 Given a scenario, detect, remove, and prevent malware using appropriate tools and methods.

• Malware • Tools and methods

2.5 Compare and contrast social engineering, threats, and vulnerabilities.

• DDoS • DoS • Zero-day • Man-in-the-middle • Brute force • Dictionary • Rainbow table • Spoofing • Non-compliant systems • Zombie

2.6 Compare and contrast the differences of basic Microsoft Windows OS security settings.

User and groups • NTFS vs. share permissions • Shared files and folders • Run as administrator vs. standard user • BitLocker • BitLocker To Go • EFS

2.7 Given a scenario, implement security best practices to secure a workstation.

• Password best practices • Account management • Disable autorun • Data encryption • Patch/update management

2.8 Given a scenario, implement methods for securing mobile devices.

• Screen locks • Remote wipes • Locator applications • Remote backup applications • Failed login attempts restrictions • Antivirus/Anti-malware • Patching/OS updates • Biometric authentication • Full device encryption • Multifactor authentication

2.9 Given a scenario, implement appropriate data destruction and disposal methods.

• Physical destruction • Recycling or repurposing best practices

2.10 Given a scenario, configure security on SOHO wireless and wired networks.

• Wireless-specific s • Firewall settings • Port forwarding/mapping • Disabling ports • Content filtering/parental controls • Update firmware • Physical security

3.0 Software Troubleshooting

3.1 Given a scenario, troubleshoot Microsoft Windows OS problems.

• Common symptoms • Common solutions

3.2 Given a scenario, troubleshoot and resolve PC security issues.

• Common symptoms

3.3 Given a scenario, use best practice procedures for malware removal.

1. Identify and research malware symptoms. 2. Quarantine the infected systems. 3. Disable System Restore (in Windows). 4. Remediate the infected systems. 5. Schedule scans and run updates. 6. Enable System Restore and create a restore point (in Windows). 7. Educate the end user.

3.4 Given a scenario, troubleshoot mobile OS and application issues.

• Common symptoms

3.5 Given a scenario, troubleshoot mobile OS and application security issues.

• Common symptoms

4.0 Operational Procedures

4.1 Compare and contrast best practices associated with types of documentation.

Network topology diagrams • Knowledge base/articles • Incident documentation • Regulatory and compliance policy • Acceptable use policy

4.2 Given a scenario, implement basic change management best practices.

Documented business processes • Purpose of the change • Scope the change • Risk analysis • Plan for change • End-user acceptance

4.3 Given a scenario, implement basic disaster prevention and recovery methods

• Surge protector • Cloud storage vs. local storage backups • Account recovery options • Backup testing • UPS

4.4 Explain common safety procedures

• Equipment grounding • Proper component handling and storage

4.5 Explain environmental impacts and appropriate controls.

• MSDS documentation for handling and disposal • Temperature, humidity level awareness, and proper ventilation

4.6 Explain the processes for addressing prohibited content/ activity, and privacy, licensing, and policy concepts.

• Incident response • Licensing/DRM/EULA • Regulated data Follow all policies and security best practices

4.7 Given a scenario, use proper communication techniques and professionalism.

• Use proper language and avoid jargon, acronyms, and slang, when applicable • Maintain a positive attitude/ project confidence • Actively listen (taking notes) and avoid interrupting the customer • Be culturally sensitive

4.8 Identify the basics of scripting.

• Environment variables • Comment syntax • Basic script constructs

4.9 Given a scenario, use remote access technologies.

• RDP • Telnet • SSH • Third-party tools

Looking for online A+ training? Visit

CompTIA A+ Acronyms

Here’s the Network+ Objectives as well

AC Alternating Current

ACL Access Control List

ACPI Advanced Configuration Power Interface

ADF Automatic Document Feeder

ADSL Asymmetrical Digital Subscriber Line

AES Advanced Encryption Standard

AHCI Advanced Host Controller Interface AP Access Point

APIPA Automatic Private Internet Protocol Addressing

APM Advanced Power Management

ARP Address Resolution Protocol

ASR Automated System Recovery

ATA Advanced Technology Attachment

ATAPI Advanced Technology Attachment Packet Interface

ATM Asynchronous Transfer Mode

ATX Advanced Technology Extended

AUP Acceptable Use Policy

A/V Audio Video

BD-R Blu-ray Disc Recordable

BIOS Basic Input/Output System

BD-RE Blu-ray Disc Rewritable

BNC Bayonet-Neill-Concelman

BSOD Blue Screen of Death

BYOD Bring Your Own Device CAD Computer-Aided Design CAPTCHA Completely Automated Public Turing test to tell Computers and Humans Apart CD Compact Disc

CD-ROM Compact Disc-Read-Only Memory

CD-RW Compact Disc-Rewritable

CDFS Compact Disc File System

CERT Computer Emergency Response Team

CFS Central File System, Common File System, or Command File System

CGA Computer Graphics and Applications

CIDR Classless Inter-Domain Routing

CIFS Common Internet File System

CMOS Complementary Metal-Oxide Semiconductor

CNR Communications and Networking Riser

COMx Communication port (x=port number)

CPU Central Processing Unit

CRT Cathode-Ray Tube

DaaS Data as a Service

DAC Discretionary Access Control

DB-25 Serial Communications

D-Shell Connector, 25 pins DB-9 Serial Communications D-Shell Connector, 9 pins D

DaaS Database as a Service

DC Direct Current

DDoS Distributed Denial of Service

DDR Double Data Rate

DDR RAM Double Data Rate Random Access Memory

DFS Distributed File System

DHCP Dynamic Host Configuration Protocol

DIMM Dual Inline Memory Module

DIN Deutsche Industrie Norm

DLT Digital Linear Tape

DLP Digital Light Processing or Data Loss Prevention

DMA Direct Memory Access

DMZ Demilitarized Zone

DNS Domain Name Service or Domain Name Server

DoS Denial of Service

DRAM Dynamic Random Access Memory

DRM Digital Rights Management

DSL Digital Subscriber Line

DVD Digital Versatile Disc

DVD-RAM Digital Versatile Disc-Random Access Memory

DVD-ROM Digital Versatile Disc-Read Only Memory

DVD-R Digital Versatile Disc-Recordable

DVD-RW Digital Versatile Disc-Rewritable

DVI Digital Visual Interface

DVI-D Digital Visual Interface–Digital

ECC Error Correcting Code

ECP Extended Capabilities Port

EEPROM Electrically Erasable Programmable Read-Only Memory

EFS Encrypting File System

EIDE Enhanced Integrated Drive Electronics

EMI Electromagnetic Interference

EMP Electromagnetic Pulse

EPROM Erasable Programmable Read-Only Memory

EPP Enhanced Parallel Port

ERD Emergency Repair Disk

eSATA External Serial Advanced Technology Attachment

ESD Electrostatic Discharge

EULA End User License Agreement

EVGA Extended Video Graphics Adapter/Array

Ext2 Second Extended File System

exFAT Extended File Allocation Table

FAT File Allocation Table

FAT12 12-bit File Allocation Table

FAT16 16-bit File Allocation Table

FAT32 32-bit File Allocation Table

FDD Floppy Disk Drive

FPM Fast Page Mode

FSB Front-Side Bus FTP File Transfer Protocol

FQDN Fully Qualified Domain Name

GDDR Graphics Double Data Rate

GDI Graphics Device Interface

GUI Graphical User Interface

GUID Globally Unique Identifier

GPS Global Positioning System

GPT Partition Table

GPU Graphics Processing Unit

GSM Global System for Mobile Communications

HAL Hardware Abstraction Layer

HAV Hardware Assisted Virtualization

HCL Hardware Compatibility List

HDCP High-Bandwidth Digital Content Protection

HDD Hard Disk Drive

HDMI High Definition Media Interface

HIPS Host Intrusion Prevention System

HPFS High Performance File System

HTML Hypertext Markup Language

HTPC Home Theater PC

HTTP Hypertext Transfer Protocol

HTTPS Hypertext Transfer Protocol Secure

I/O Input/Output

IaaS Infrastructure as a Service

ICMP Internet Control Message Protocol

ICR Intelligent Character Recognition

IDE Integrated Drive Electronics

IDS Intrusion Detection System

IEEE Institute of Electrical and Electronics Engineers

IIS Internet Information Services

IMAP Internet Mail Access Protocol

IMEI International Mobile Equipment Identity

IMSI International Mobile Subscriber Identity

IP Internet Protocol

IPConfig Internet Protocol Configuration

IPP Internet Printing Protocol

IPS Intrusion Prevention System

IPSec Internet Protocol Security

IR Infrared

IrDA Infrared Data Association

IRP Incident Response Plan

IRQ Interrupt Request

ISA Industry Standard Architecture

ISDN Integrated Services Digital Network

ISO International Organization for Standardization

ISP Internet Service Provider

JBOD Just a Bunch of Disks

KB Knowledge Base

KVM Kernel-based Virtual Machine

KVM Keyboard-Video-Mouse

LAN Local Area Network

LBA Logical Block Addressing

LC Lucent Connector

LCD Liquid Crystal Display

LDAP Lightweight Directory Access Protocol

LED Light Emitting Diode

LPD/LPR Line Printer Daemon/Line Printer Remote

LPT Line Printer Terminal

LVD Low Voltage Differential

MAC Media Access Control/Mandatory Access Control

MAN Metropolitan Area Network

MAPI Messaging Application Programming Interface

mATX Micro Advanced Technology Extended

MAU Media Access Unit/Media Attachment Unit

MBR Master Boot Record

MBSA Microsoft Baseline Security Analyzer

MDM Mobile Device Management

MFA Multifactor Authentication

MFD Multifunction Device

MFP Multifunction Product

MicroDIMM Micro Dual Inline Memory Module

MIDI Musical Instrument Digital Interface

MIME Multipurpose Internet Mail Extension

MIMO Multiple Input Multiple Output

MMC Microsoft Management Console

MP3 Moving Picture Experts Group Layer 3 Audio

MP4 Moving Picture Experts Group Layer 4

MPEG Moving Picture Experts Group

MSConfig Microsoft Configuration

MSDS Material Safety Data Sheet

MT-RJ Mechanical Transfer Registered Jack

MUI Multilingual User Interface

NaaS Network as a Service

NAC Network Access Control

NAS Network-Attached Storage

NAT Network Address Translation

NetBIOS Networked Basic Input/Output System

NetBEUI Networked Basic Input/Output System Extended User Interface

NFC Near Field Communication

NFS Network File System

NIC Network Interface Card

NiCd Nickel Cadmium

NiMH Nickel Metal Hydride

NLX New Low-profile Extended

NNTP Network News Transfer Protocol

NTFS New Technology File System

NTLDR New Technology Loader

NTP Network Time Protocol

NTSC National Transmission Standards Committee

NVMe Non-volatile Memory Express

OCR Optical Character Recognition

OEM Original Equipment Manufacturer

OLED Organic Light Emitting Diode

OS Operating System

PaaS Platform as a Service

PAL Phase Alternating Line

PAN Personal Area Network

PAT Port Address Translation

PC Personal Computer

PCI Peripheral Component Interconnect

PCI Payment Card Industry

PCIe Peripheral Component Interconnect Express

PCIX Peripheral Component Interconnect Extended

PCL Printer Control Language

PCMCIA Personal Computer Memory Card International Association

PE Preinstallation Environment

PGA Pin Grid Array

PGA2 Pin Grid Array 2

PGP Pretty Good Protection

PII Personally Identifiable Information

PIN Personal Identification Number

PHI Personal Health Information

PKI Public Key Infrastructure

PnP Plug and Play

PoE Power over Ethernet

POP3 Post Office Protocol 3

PoS Point of Sale

POST Power-On Self-Test

POTS Plain Old Telephone Service

PPM Pages Per Minute

PPP Point-to-Point Protocol

PPTP Point-to-Point Tunneling Protocol

PRI Primary Rate Interface

PROM Programmable Read-Only Memory

PS/2 Personal System/2 connector

PSTN Public Switched Telephone Network

PSU Power Supply Unit

PVA Patterned Vertical Alignment

PVC Permanent Virtual Circuit

PXE Preboot Execution Environment

QoS Quality of Service

RADIUS Remote Authentication Dial-In User Server

RAID Redundant Array of Independent (or Inexpensive) Disks RAM Random Access Memory

RAS Remote Access Service

RDP Remote Desktop Protocol

RF Radio Frequency

RFI Radio Frequency Interference

RFID Radio Frequency Identification

RGB Red Green Blue RIP Routing Information Protocol

RIS Remote Installation Service

RISC Reduced Instruction Set Computer

RJ-11 Registered Jack Function 11

RJ-45 Registered Jack Function 45

RMA Returned Materials Authorization

ROM Read-Only Memory

RPO Recovery Point Objective

RTC Real-Time Clock

RT Recovery Time Objective

Saas Software as a Service

SAN Storage Area Network

SAS Serial Attached SCSI

SATA Serial Advanced Technology Attachment

SC Subscription Channel

SCP Secure Copy Protection

SCSI Small Computer System Interface

SCSI ID Small Computer System Interface Identifier

SD card Secure Digital Card

SEC Single Edge Connector

SFC System File Checker

SFF Small Form Factor

SFTP Secure File Transfer Protocol

SIM Subscriber Identity Module

SIMM Single In-Line Memory Module

SLI Scalable Link Interface or System Level Integration or Scanline Interleave Mode

S.M.A.R.T. Self-Monitoring, Analysis, and Reporting Technology

SMB Server Message Block

SMTP Simple Mail Transfer Protocol

SNMP Simple Network Management Protocol

SoDIMM Small Outline Dual Inline Memory Module

SOHO Small Office/Home Office

SP Service Pack

SPDIF Sony-Philips Digital Interface Format

SPGA Staggered Pin Grid Array

SRAM Static Random Access Memory

SSD Solid State Drive

SSH Secure Shell

SSID Service Set Identifier

SSL Secure Sockets Layer

SSO Single Sign-on

ST Straight Tip

STP Shielded Twisted Pair

SXGA Super Extended Graphics Array

TACACS Terminal Access Controller Access-Control System

TCP Transmission Control Protocol

TCP/IP Transmission Control Protocol/Internet Protocol

TDR Time Domain Reflectometer

TFTP Trivial File Transfer Protocol

TKIP Temporal Key Integrity Protocol

TLS Transport Layer Security

TN Twisted Nematic

TPM Trusted Platform Module

UAC User Account Control

UDF User Defined Functions or Universal Disk Format or Universal Data Format

UDP User Datagram Protocol

UEFI Unified Extensible Firmware Interface

UNC Universal Naming Convention

UPnP Universal Plug and Play

UPS Uninterruptible Power Supply

URL Uniform Resource Locator

USB Universal Serial Bus

USMT User State Migration Tool

UTM Unified Threat Management

UTP Unshielded Twisted Pair

UXGA Ultra Extended Graphics Array

VA Vertical Alignment

VDC Volts DC

VDI Virtual Desktop Infrastructure

VESA Video Electronics Standards Association

VFAT Virtual File Allocation Table

VGA Video Graphics Array

VLAN Virtual LAN

VM Virtual Machine

VNC Virtual Network Computer

VoIP Voice over Internet Protocol

VPN Virtual Private Network

VRAM Video Random Access Memory

WAN Wide Area Network

WAP Wireless Access Protocol/Wireless Access Point

WEP Wired Equivalent Privacy

WIFI Wireless Fidelity WINS Windows Internet Name Service

WLAN Wireless Local Area Network

WMN Wireless Mesh Network

WPA Wireless Protected Access

WPA2 WiFi Protected Access 2

WPS WiFi Protected Setup

WUXGA Wide Ultra Extended Graphics Array

WWAN Wireless Wide Area Network

XGA Extended Graphics Array

ZIF Zero-Insertion-Force

ZIP Zigzag Inline Package

Looking for online A+ training? Visit

CompTIA Security+ Exam Requirements

CompTIA Security+ Exam Requirements

The Security+ certification demonstrates you have competency in network security, threats, and vulnerabilities.  The Security+ exam will test your proficiency in all these areas. Keep reading to find out exactly what to expect.



The Security+ exam costs are 330$ USD. This is a one time non refundable fee.

Continue reading “CompTIA Security+ Exam Requirements”

DNS Poisoning

What’s Domain Name Service?


The domain name server ensures that you always end up on the right website.  All websites have an address, this address is a set of numbers called the IP.  The DNS resolves IP addresses to website names.  So instead of typing you can just enter

Domain Name Service Poisoning


When a DNS server is posioned it redirects you.  Meaning instead of you going to you’ll end up on whatever site the hacker wants you to go to.  This happens due to the hacker replacing the DNS records of the server.  To prevent this ensure your antivirus protection is up to date.  Also stay away from anyway site that isn’t mom approved.

Want to learn more?