Acronyms

Question 1

AAA

Answer 1

Authentication, Authorization, and Accounting

Question 2

ACL

Answer 2

Access Control List

Question 3

AH

Answer 3

Authentication Header

Question 4

API

Answer 4

Application Programming Interface

Question 5

APIPA

Answer 5

Automatic Private IP Addressing

Question 6

BYOD

Answer 6

Bring Your Own Device

Question 7

CIA

Answer 7

Confidentiality, Integrity, and Availability

Question 8

CSMA/CD

Answer 8

Carrier Sense Multiple Access with Collision Detection

Question 9

CYOD

Answer 9

Choose Your Own Device

Question 10

DCS

Answer 10

Distributed Control System

An industrial automation system. Unlike SCADA, which is remote, DCS is generally local process control.

Question 11

DLP

Answer 11

Data Loss Prevention

Question 12

DOCSIS

Answer 12

Data Over Cable Service Interface Specification

Question 13

DTLS

Answer 13

Datagram Transport Layer Security

Question 14

ESP

Answer 14

Encapsulating Security Payload

Question 15

GRE

Answer 15

Generic Routing Encapsulation

A tunneling protocol developed by Cisco. It encapsulates Layer 3 packets inside another IP packet. It allows protocols that wouldn’t normally be routable over an IP network to be tunneled. Almost any layer 3 protocol can be encapsulated.

– It is often combined with IPsec –

It does not provide any encryption.

Question 16

H.323

Answer 16

Not an Acronym!

It’s the standard used for VoIP and video conferencing over IP networks.

Question 17

HDLC

Answer 17

High-Level Data Link Control

Question 18

HMI

Answer 18

Human-Machine Interface

Question 19

IANA

Answer 19

Internet Assigned Numbers Authority

Question 20

ICS

Answer 20

Industrial Control System

Question 21

IDS

Answer 21

Intrusion Detection System

Question 22

IEEE

Answer 22

Institute of Electrical and Electronics Engineers

Question 23

IKE

Answer 23

Internet Key Exchange

Two Phases:
Phase 1: Create a secure, authenticated tunnel
– Negotiate encryption and authentication
– Perform Diffie-Hellman to create shared secret
– Authenticate the peers (e.g., digital certs, pre-shared key, etc.)

Phase 2: Establish the IPsec Security Associations
– Agree on which IPsec protocols to use (ESP, AH)
– Set up keys
– Define lifetimes and parameters for the tunnel

Question 24

IoT

Answer 24

Internet of Things

Question 25

IPS

Answer 25

Intrusion Prevention System

Question 26

IT

Answer 26

Information Technology

Question 27

L2F

Answer 27

Layer 2 Forwarding Protocol

Question 28

L2TP

Answer 28

Layer 2 Tunneling Protocol

Question 29

MDM

Answer 29

Mobile Device Management

Question 30

MIB

Answer 30

Management Information Base

Question 31

MIMO

Answer 31

Multiple Input Multiple Output

Question 32

MTBF

Answer 32

Mean Time Between Failures

Question 33

MTTR

Answer 33

Mean Time To Recover

Question 34

MTU

Answer 34

Maximum Transmission Unit

Question 35

NAC

Answer 35

Network Access Control

Question 36

NAS

Answer 36

Network Attached Storage

Question 37

OFDM

Answer 37

Orthogonal Frequency-Division Multiplexing

Question 38

OID

Answer 38

Object Identifier

Question 39

AES

Answer 39

Advanced Encryption Standard

Question 40

OT

Answer 40

Operational Technology

Question 41

PDU

Answer 41

Protocol Data Unit

Question 42

PLC

Answer 42

Programmable Logic Controller

Question 43

POTS

Answer 43

Plain Old Telephone Service

Question 44

PPP

Answer 44

Point-to-Point Protocol

Question 45

PPTP

Answer 45

Point-to-Point Tunneling Protocol

Question 46

QoS

Answer 46

Quality of Service

Question 47

RADIUS

Answer 47

Remote Authentication Dial-In User Service

Question 48

RDG

Answer 48

Remote Desktop Gateway

Question 49

RPO

Answer 49

Recovery Point Objective

Question 50

RTO

Answer 50

Recovery Time Objective

Question 51

SAN

Answer 51

Storage Area Network

Question 52

SASE

Answer 52

Secure Access Secure Edge

Question 53

SCADA

Answer 53

Supervisory Control and Data Acquisition SCADA is a system used for remote monitoring and control of industrial processes, often across multiple locations.

Question 54

SIEM

Answer 54

Security Information and Event Management

Question 55

SMF

Answer 55

Single Mode Fiber

Question 56

SOAP

Answer 56

Simple Object Access Protocol

Question 57

SSE

Answer 57

Security Service Edge

Question 58

SSL

Answer 58

Secure Socket Layer

Question 59

STP

Answer 59

Spanning Tree Protocol

Question 60

SQL

Answer 60

Structured Query Language

Question 61

TACACS+

Answer 61

Terminal Access Controller Access Control System Plus

Question 62

TCP

Answer 62

Transport Control Protocol

Question 63

TLS

Answer 63

Transport Layer Security

Question 64

UDP

Answer 64

User Datagram Protocol

Question 65

UPS

Answer 65

Uninterruptible Power Supply

Question 66

VDI

Answer 66

Virtual Desktop Infrastructure

Question 67

VLAN

Answer 67

Virtual Local Area Network

Question 68

NGFW

Answer 68

Next Generation Firewall

Question 69

VNC

Answer 69

Virtual Network Computing

Question 70

VPC

Answer 70

Virtual Private Cloud

Question 71

VPN

Answer 71

Virtual Private Network

Question 72

VXLAN

Answer 72

Virtual Extensible LAN It extends Layer 2 network over a Layer 3 network. Essentially you are creating a VLAN that can exist across different physical locations and even networks! It does this by encapsulating a Layer 2 frame inside a UDP packet. While traditional VLANs are limited to 4,094 (12-bit field; e.g., tag) segments, VXLANs can have 16 million+ segments (24-bit field)

Question 73

IPsec

Answer 73

Internet Protocol Security It takes the original message and encapsulates it within a new, encrypted message. It uses IKE (Internet Key Exchange) to agree on encryption and hashing and establish what's called a Security Association. It also provides for authentication. Transport Mode -- Only the payload (data) is encrypted. The header stays visible. Good for host-to-host. Tunnel Mode -- The entire IP packet is encrypted. Good for VPNs.

Question 74

SA

Answer 74

Security Association