Network and Security Foundations Study Guide with Key Concepts and Practice Questions Complete Cybersecurity Review Resource 2025/ 2026

Network and Security Foundations
Network
Study
and
Guide
Security
with Foundations
Key Concepts
Network
Study
and
and
Guide
Practice
Security
with
Questions.pdf
Foundations
Key ConceptsStudy
and Guide
Practice
with
Questions.pdf
Key Concepts and Practice Questions.pdf




Network and
Security
Foundations Study
Guide with Key
Concepts and
Practice Questions




Network and Security Foundations
Network
Study
and
Guide
Security
with Foundations
Key Concepts
Network
Study
and
and
Guide
Practice
Security
with
Questions
Foundations
Key ConceptsStudy
and Guide
Practice
with
Questions.pdf
Key Concepts and Practice Questions.pdf

,Network and Security Foundations.pdf Network and Security Foundations.pdf Network and Security Foundations.pdf


Terms in this set (214)



OSI Model -the framework that breaks down network communication into seven layers
7.Application
6.Presentation
5.session
4. Transport
3. network
2. Data Link
1. Physical


Application -layer 7
-provides services to end users


Protocols: HTTP, DNS, Telnet, DHCP


Devices: Gateways, Proxies




Network and Security Foundations Network and Security Foundations.pdf Network and Security Foundations.pdf

,Network and Security Foundations.pdf Network and Security Foundations.pdf Network and Security Foundations.pdf




Presentation -layer 6
-translates data so application layer can use it


-encrypts and decrypts data


Protocols: SSL


Devices: software-based, OS, Applications


Session -layer 5
-manages the communication of devices/app over a network


Protocol: NetBIOS, SMB


Devices: software-based, OS, Application


Transport -layer 4
-transfers data from host to end user


Protocol: TCP, UDP


Devices: Software-based, OS, Application


Network and Security Foundations Network and Security Foundations.pdf Network and Security Foundations.pdf

, Network and Security Foundations.pdf Network and Security Foundations.pdf Network and Security Foundations.pdf




Network -layer 3
-routers & forwards data over multiple networks


Protocols: IP


Devices: Routers, layer 3 switches, NICs


Data Link -layer 2
-transfer of data between devices on same network


Protocols: ethernet


Devices: NICs, Bridges, switches


physical -layer 1
-transmits raw data over hardware


Protocol: NONE due to being hard-ware based


Devices: Hubs, cables, NICs, repeaters




Network and Security Foundations Network and Security Foundations.pdf Network and Security Foundations.pdf