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Network security

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Encryption of files and firewalls are just some of the security measures that can be used in security. This free course, Network security, which assumes you have a substantial knowledge of computing, helps to explain the intricacies of the continually changing area of network security by studying the main issues involved in achieving a reasonable degree of resilience against attacks.

After studying this course, you should be able to:

  • identify some of the factors driving the need for network security
  • identify and classify particular examples of attacks
  • define the terms vulnerability, threat and attack
  • identify physical points of vulnerability in simple networks
  • compare and contrast symmetric and asymmetric encryption systems and their vulnerability to attack, and explain the characteristics of hybrid systems.

By: The Open University

  • Duration 25 hours
  • Updated Thursday 17th March 2016
  • Advanced level
  • Posted under Systems (Computer)
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Network security

Introduction

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Communication networks are used to transfer valuable and confidential information for a variety of purposes. As a consequence, they attract the attention of people who intend to steal or misuse information, or to disrupt or destroy the systems storing or communicating it. In this unit you will study some of the main issues involved in achieving a reasonable degree of resilience against network attacks. Some attacks are planned and specifically targeted, whereas others may be opportunistic, resulting from eavesdropping activities.

Threats to network security are continually changing as vulnerabilities in both established and newly introduced systems are discovered, and solutions to counter those threats are needed. Studying this unit should give you an insight into the more enduring principles of network security rather than detailed accounts of current solutions.

The aims of this unit are to describe some factors that affect the security of networks and data communications, and their implications for users; and to introduce some basic types of security service and their components, and indicate how these are applied in networks.

This OpenLearn course provides a sample of level 3 study in Computing & IT [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)]

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