One of the most essential portions of information security is the design and topology of secure networks. What exactly do we mean by “topology?” Usually, a geographic diagram of a network comes to mind.

Some of the Security+ exam will test you on your knowledge of some basic email, Internet, and application security issues. Although the amount of detail of knowledge that is required is quite minimal, you must still have a working knowledge of some simple email and application security concepts.

Public Key Cryptography is a widely-applied form of cryptography commonly utilized in many network transactions.

In here we will learn about different symmetric key algorithms and their key features. More importantly, we will learn about some more key concepts related to cryptography as it applies to both symmetric and asymmetric algorithms.

Networking Overview In subsequent chapters of this study guide, we will take a look at different security topologies or ways that networks can be set up with security in mind.

[bs_icon name=”glyphicon glyphicon-chevron-right”] What is a Firewall? A firewall is any hardware or software designed to prevent unwanted network traffic. Some firewalls are simplistic in nature;

One of the most ever-present and ancient uses of the Internet and networking has been to provide remote access to networks or network resources.