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CompTIA Security+ Certification Guide

You're reading from   CompTIA Security+ Certification Guide Master IT security essentials and exam topics for CompTIA Security+ SY0-501 certification

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Product type Paperback
Published in Sep 2018
Publisher Packt
ISBN-13 9781789348019
Length 532 pages
Edition 1st Edition
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Author (1):
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Ian Neil Ian Neil
Author Profile Icon Ian Neil
Ian Neil
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Table of Contents (18) Chapters Close

Preface 1. Understanding Security Fundamentals FREE CHAPTER 2. Conducting Risk Analysis 3. Implementing Security Policies and Procedures 4. Delving into Identity and Access Management 5. Understanding Network Components 6. Understanding Cloud Models and Virtualization 7. Managing Hosts and Application Deployment 8. Protecting Against Attacks and Vulnerabilities 9. Implementing the Public Key Infrastructure 10. Responding to Security Incidents 11. Managing Business Continuity 12. Mock Exam 1
13. Mock Exam 2
14. Preparing for the CompTIA Security+ 501 Exam 15. Acronyms
16. Assessment 17. Other Books You May Enjoy

Server-Side v Client-Side Execution and Validation

Website scripts run in one of two places:

  • Server Side - called the backend: Server-side validation is where the input by the user is being sent to the server and being validated with the response being sent back to the client. Programming languages such as C# and .NET are server-side.
  • Client Side - called the frontend: Client-side validation does not require a round trip to the server, so the network traffic will help your server perform better. This type of validation is done on the browser side using script languages such as JavaScript, VBScript, or HTML5 attributes.

Client-side validation is much quicker, but an attacker can exploit the JavaScript and bypass the client side. Server-side validation takes much longer, and can use input validation to check that the input is valid and to stop the attacker who has just bypassed...

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