Hardware
Software
Operating Systems
Networking
Security Fundamentals
100

This is the physical part of a computer that does the work of the system

Hardware

100

This term describes lines of code that tell the computer how to work

Software

100

The user interacts with the system through this component, which includes things like File Explorer or Command Prompt

User Interface

100

This system translates human-friendly domain names into IP addresses

Domain Name System (DNS)

100

This triad defines the core goals of information security: confidentiality, integrity, and availability

CIA Triad

200

Known as the “brains” of the computer, this component carries out program instructions

Central Processing Unit (CPU)

200

This software layer manages communication between hardware and user applications

Operating System

200

The OS uses this area of memory to temporarily store running applications and data

RAM

200

This protocol automatically assigns IP addresses to devices on a network

DHCP (Dynamic Host Configuration Protocol)

200

This converts data into an unreadable format until decrypted

Encryption

300

All computer components communicate through this circuit board “highway.”

Motherboard

300

Software that allows an OS and a device to communicate with each other

Drivers

300

This process begins when the computer is powered on, performing diagnostics and loading the OS

The Boot Process

300

In this network model, every computer can act as both a client and a server

Peer-to-Peer

300

This ensures transmitted data has not been altered in transit

Integrity (or hashing)

400

This fast, volatile memory temporarily holds data while the computer is on

RAM

400

This permanent storage contains programs essential for the computer to boot and operate

ROM

400

This OS security feature ensures that only authorized persons can access certain files or programs

Access Control (permissions)

400

This network service manages permissions and user access to network resources

Active Directory Domain Service (ADDS)

400

A concept ensuring someone cannot deny sending a message

Nonrepudiation

500

This type of drive uses flash memory chips, consumes less power, and costs more

Solid State Drive

500

This fundamental OS component manages core processes and system calls at the lowest level

Kernel

500

The Windows file system that supports encryption, compression, and large files up to 16 TB

NTFS (New Technology File System)

500

This logical ADDS structure groups related users, groups, and computers within a domain

Organizational Unit (OU)

500

This U.S. law gives the public the right to request federal records unless exempted

Freedom of Information Act (FOIA)

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