INTRO: Computer Network and Security

Vocabulary flashcards for computer networking and security terms.

Computer Network

A collection of devices that are connected and can communicate with each other.

Networking or Computer Networking

It is the process of connecting two or more computing devices, such as desktop computers, mobile devices, routers or applications, to enable the transmission and exchange of information and resources.

Types of Network

LAN, MAN, WAN

LAN (Local Area Network)

A collection of devices connected together in one physical location, such as a building, office, or home.

It can be small or large, ranging from a home network with one user to an enterprise network with thousands of users and devices in an office or school.

MAN (Metropolitan Area Network)

Allows a larger area, such as a city, to be connected to the WAN, typically spanning 5 to 50 kilometers.

WAN (Wide Area Network)

A collection of local-area networks (LANs) or other networks that communicate with one another.

Internet

The largest WAN, the network of networks of the entire world.

why we need computer network

resource sharing, communications, information, collaboration, centralized management

Security

Protection from harm or the state of feeling safe. It can also refer to a person or organization that provides protection.

Network Security

Protects a network's infrastructure from unauthorized access, theft, and misuse. It includes hardware and software technologies that help to prevent threats from entering or spreading on a network.

Network Administrator

Responsible for the day-to-day operation and maintenance of a company's network, including troubleshooting issues, managing user access, and ensuring network security.

Network Architect

Designs and plans the overall structure of a network, including hardware, software, and protocols, including hardware, software, and protocols, often considering future scalability needs.

Network Analyst

Analyzes network performance, identifies bottlenecks, and recommends improvements to optimize network efficiency.

Network Engineer

Focuses on the technical aspects of network design and implementation, configuring routers, switches, and firewalls, configuring routers, switches, and firewalls.

key organizations in the networking scene

cisco

juniper networks

palo alto networks

hpe aruba networks

huawei

fortinet

CCNA (Cisco Certified Network Associate)

An associate-level credential that covers a wide range of networking fundamentals.

CCNP (Cisco Certified Network Professional)

Helps networking professionals expand their skills and gain a more in-depth understanding.

CCIE (Cisco Certified Internetwork Expert)

Technical certifications for senior networking professionals who design, build, implement, maintain, and troubleshoot complex enterprise networking infrastructures.

CompTIA Network+

A vendor-neutral certification that tests your understanding of networking basics regardless of the company your networking technology may come from.

JNCIA-Junos (Juniper Networks Certified Associate - Junos)

The associate-level certification for Juniper Networks technologies. It’s the first step required for those who want to take more advanced certifications from Juniper Networks in data center technologies, enterprise routing, and switching, or service provider routing and switching.

CISSP (Certified Information Systems Security Professional)

Demonstrates experience in IT security and capability of designing, implementing, and monitoring a cybersecurity programme.

CISA (Certified Information Systems Auditor)

Helps demonstrate expertise in assessing security vulnerabilities, designing and implementing controls, and reporting on compliance.

CISM (Certified Information Security Manager)

Validates expertise in the management side of information security, including topics like governance, program development, and risk management.