Abbreviation Topcit

Lan

Local Area Network

Wan

Wide Area Network

Man

Metropolitan Area network

Pan

personal Area Network

TCP

Transmission Control Protocol

IP

Internet Protocol

HTTP

HyperText Transfer Protocol

FTp

File Transfer Protocol

UDP

User Datagram Protocol

OS

Operating System

CPU

Central Processing Unit

ALU

Arithmetic Logic Unit

DRP

Disaster recovery Plan

IAAS

Infrastructure as a service

PAAS

Platform as a service

SaaS

Software as a service

CRC

Cyclic Redundancy Check

SMTP

Simple mail transfer Protocol

DNS

Domain Name System

MAC

Medium Access Control

MQTT

Message Queue Telemetry Transport

SIM

Subscriber Identity Module

VOIP

Voice over IP

RTMP

Real-Time Messaging Protocol

HLS

HTTP Live Streaming

CIA

Confidentiality, Integrity and Availability

IDS

Intrusion Detection System

IPS

Intrusion Prevention System

DOS

Denial Of Service

MITM

Man-in-the-middle

MFA

Multi Factor Authentication

SHA

Secure Hash Algorithm

MD5

Message Digest Algorithm 5

RBAC

Role Based Access Control

VPN

Virtual Private Network

SSH

Secure Shell

EDR

Endpoint Detection & Response

ISMS

Information Security management System

SAST

Static Application Security Testing

DAST

Dynamic Application Security Testing

SOA

Service Oriented Architecture

Vm

Virtual Machine

CDN

Content Delivery Network

P2P

Peer-to-Peer

NIC

Network Interface Card

Well-Known Ports

(0-1023)

Registered Ports

(1024-49151)

Dynamic/Ephemeral Ports

(49152-65535)

Common Ports

80 – HTTP (Web Traffic)

443 – HTTPS (Secure Web Traffic)

21 – FTP (File Transfer)

22 – SSH (Secure Shell)

25 – SMTP (Email Sending)

53 – DNS (Domain Name System)

3306 – MySQL Database

IETF

Internet engineer task force