Networks and Security

Explore articles about cybersecurity, networking, and cloud technology. Learn about career paths in security and IT, in-demand skills and certifications, and how to prepare for roles such as cybersecurity analyst and cloud engineer.

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[Featured Image] A software engineer sits at a workstation, using containerization to simplify his job.

What Is Containerization? Software Explained

With containerization, you create software in a way that makes it more adaptable to different machines. Explore why software professionals use containerization across industries, as well as the benefits and drawbacks of using such software.

October 24, 2024

Article

[Featured Image] Three co-workers are sending files through their communication network protocols on digital tablets.

The 3 Types of Network Protocols

Explore what network protocols are, including different types centered around communication, management, and security.

October 24, 2024

Article

[Featured Image] A network engineer works on their computer to implement network monitoring software.

Network Monitoring Software: What It Is and Why to Use It

Discover the details of enterprise networking monitoring software, including its benefits, operational mechanisms, and best practices.

October 23, 2024

Article

[Featured Image] A software engineer sits at a workstation, using containerization to simplify his job.

What Is Containerization? Software Explained

With containerization, you create software in a way that makes it more adaptable to different machines. Explore why software professionals use containerization across industries, as well as the benefits and drawbacks of using such software.

October 24, 2024

Article

[Featured Image] Three co-workers are sending files through their communication network protocols on digital tablets.

The 3 Types of Network Protocols

Explore what network protocols are, including different types centered around communication, management, and security.

October 24, 2024

Article

Explore popular networks and security courses

Google

Skills you'll gain: Threat Modeling, Network Security, Vulnerability Management, Intrusion Detection and Prevention, Hardening, Incident Response, Threat Management, Cybersecurity, Network Protocols, Threat Detection, Cloud Security, Vulnerability Assessments, Network Architecture, Computer Security Incident Management, Operating Systems, Debugging, Linux, Web Presence, Python Programming, SQL

4.8 stars, 70K reviews, Beginner, Professional Certificate, 3 - 6 Months
Status: Free trial
Category: Build toward a degree

Google

Skills you'll gain: Cybersecurity, Security Controls, Cyber Attacks, Security Information and Event Management (SIEM)

4.8 stars, 43K reviews, Beginner, Course, 1 - 4 Weeks
Status: Trending right now
Status: Free trial

IBM

Skills you'll gain: Email Security, Cybersecurity, Hardening, Authorization (Computing), Cyber Attacks, Security Awareness, Security Controls, Encryption, Data Security, Authentications, Application Security, Threat Detection, Cryptography, Patch Management, Multi-Factor Authentication

4.9 stars, 2K reviews, Beginner, Course, 1 - 4 Weeks
Status: Free trial
[Featured Image] IT professional sitting at their workspace building network architectures and communicating with colleagues via headphones.

A Guide to Network Architectures

Network architectures describe how a computer network operates, outlining devices and logistics. Explore network architectures and how they can impact your organization’s network management.

October 23, 2024

Article

[Featured Image] In a server room, a network operations engineer examines a server while holding a tablet.

What Does a Network Operations Engineer Do? (And How to Become One)

Network operations engineers are vital to keeping a business’s computing network functioning properly. Learn more about a network operations engineer job description, as well as the skills, education, and experience necessary for the role.

October 22, 2024

Article

[Featured Image] A young professional who wants to change careers uses a laptop to research whether you need a degree for cybersecurity.

Do You Need a Degree for Cybersecurity Jobs?

Cybersecurity is a fast-moving industry requiring a range of skills. Find out if you need a degree to work in this in-demand field.

October 15, 2024

Article

[Featured Image] A computer networking learner studies the function of data packets and internet protocol.

What Are Data Packets?

Data packets are the fundamental units of communication for devices connected to the internet. Explore their role in internet protocol and other details to gain a deeper understanding of computer networking.

October 11, 2024

Article

[Featured Image] Two people on a video call using a computer as a full duplex as both computers are transmitting and receiving information.

What Is Full Duplex and How Is It Used?

Full-duplex design allows computers to send and receive information at the same time. Learn about the full duplex communication mode, including the type of data transmission used, devices that use it, and the difference between half duplex and simplex.

October 11, 2024

Article

[Featured Image] A young computer user explains how network interface cards work to allow their parent’s laptop and other devices to connect to the network.

Network Interface Card: What Is It and Where to Buy One

Network interface cards provide network connections for your devices. Installing this critical hardware in your computers or servers keeps you connected to the networks you need. Find out more about these essential computing cards.

October 9, 2024

Article

[Featured Image] A network engineer stands in a server room with a laptop looking at the physical layer mechanics

What Is the Physical Layer: A Beginner’s Guide

When communicating via technology, you need physical components to receive and transmit information. They are the “physical layer” of the Open Systems Interconnection (OSI) model. Learn more about OSI and the function the physical layer plays.

October 8, 2024

Article

[Featured Image] Aspiring computer network architects learn about CSMA and its importance in data collision avoidance in a classroom setting.

What Is CSMA?

CSMA, or carrier sense multiple access, is a network protocol for managing data transmission and avoiding collisions on shared communication channels. Explore the different types of CSMA protocols and their importance in network communications.

October 7, 2024

Article

[Featured Image] A person with red curly hair smiles while studying the OSI model on their laptop computer in their home office.

OSI Model: An Overview

The Open Systems Interconnection (OSI) model is a multi-layered framework for network communications. Explore the OSI model below, including each layer that allows it to operate.

October 7, 2024

Article

[Featured Image] A network engineer works on their computer to implement network monitoring software.

Network Monitoring Software: What It Is and Why to Use It

Discover the details of enterprise networking monitoring software, including its benefits, operational mechanisms, and best practices.

October 23, 2024

Article

[Featured Image] IT professional sitting at their workspace building network architectures and communicating with colleagues via headphones.

A Guide to Network Architectures

Network architectures describe how a computer network operates, outlining devices and logistics. Explore network architectures and how they can impact your organization’s network management.

October 23, 2024

Article

[Featured Image] In a server room, a network operations engineer examines a server while holding a tablet.

What Does a Network Operations Engineer Do? (And How to Become One)

Network operations engineers are vital to keeping a business’s computing network functioning properly. Learn more about a network operations engineer job description, as well as the skills, education, and experience necessary for the role.

October 22, 2024

Article

[Featured Image] A young professional who wants to change careers uses a laptop to research whether you need a degree for cybersecurity.

Do You Need a Degree for Cybersecurity Jobs?

Cybersecurity is a fast-moving industry requiring a range of skills. Find out if you need a degree to work in this in-demand field.

October 15, 2024

Article

[Featured Image] A computer networking learner studies the function of data packets and internet protocol.

What Are Data Packets?

Data packets are the fundamental units of communication for devices connected to the internet. Explore their role in internet protocol and other details to gain a deeper understanding of computer networking.

October 11, 2024

Article

[Featured Image] Two people on a video call using a computer as a full duplex as both computers are transmitting and receiving information.

What Is Full Duplex and How Is It Used?

Full-duplex design allows computers to send and receive information at the same time. Learn about the full duplex communication mode, including the type of data transmission used, devices that use it, and the difference between half duplex and simplex.

October 11, 2024

Article

[Featured Image] A young computer user explains how network interface cards work to allow their parent’s laptop and other devices to connect to the network.

Network Interface Card: What Is It and Where to Buy One

Network interface cards provide network connections for your devices. Installing this critical hardware in your computers or servers keeps you connected to the networks you need. Find out more about these essential computing cards.

October 9, 2024

Article

[Featured Image] A network engineer stands in a server room with a laptop looking at the physical layer mechanics

What Is the Physical Layer: A Beginner’s Guide

When communicating via technology, you need physical components to receive and transmit information. They are the “physical layer” of the Open Systems Interconnection (OSI) model. Learn more about OSI and the function the physical layer plays.

October 8, 2024

Article

[Featured Image] Aspiring computer network architects learn about CSMA and its importance in data collision avoidance in a classroom setting.

What Is CSMA?

CSMA, or carrier sense multiple access, is a network protocol for managing data transmission and avoiding collisions on shared communication channels. Explore the different types of CSMA protocols and their importance in network communications.

October 7, 2024

Article

[Featured Image] A person with red curly hair smiles while studying the OSI model on their laptop computer in their home office.

OSI Model: An Overview

The Open Systems Interconnection (OSI) model is a multi-layered framework for network communications. Explore the OSI model below, including each layer that allows it to operate.

October 7, 2024

Article

Networks and security encompass many skills and career paths, including data privacy, cloud security, cryptography, and network administration. In today's digital age, experts in networks and security are highly sought after across various industries. Pursuing a career in this rapidly expanding field allows you to leverage technical skills to make a significant business impact. Delve into the diverse career options, essential skills, and job types within networks and security to begin your journey in this dynamic and rewarding domain.

Ready to start learning? Explore our catalog of network administration, cybersecurity, and cloud security courses for beginners and experienced professionals.

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