- The data-link layer (Layer 2) is the lowest layer that a switch operates at.
- A router works at Layer 3 of the OSI Reference Model as it works on IP addresses.
- A VLAN is created on a switch that works at layer 2 of the OSI Reference Model.
- A web application firewall works at Layer 7 of the OSI Reference Model.
- The web application firewall is normally installed on a web server as its job is to protect web applications from attack.
- The default setting for a firewall is block all, allow by exception.
- Implicit deny is used by both the firewall and the router where the last rule is deny all. Should there not be an allow rule, then the last rule applies and it is known as implicit deny.
- If the VLAN traffic is not arriving, check that the VLAN tag is set up properly as it tells the VLAN traffic where to go.
- A TCP Port is connection-orientated as it uses a three...
CompTIA Security+ Certification Guide
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CompTIA Security+ Certification Guide
By:
Overview of this book
CompTIA Security+ is a worldwide certification that establishes the fundamental knowledge required to perform core security functions and pursue an IT security career. CompTIA Security+ Certification Guide is a best-in-class exam study guide that covers all of CompTIA Security+ 501 exam objectives. It is authored by Ian Neil, who is a world-class trainer of CompTIA Security+ 501. Packed with self-assessment scenarios and realistic exam questions, this guide will help you master the core concepts to succeed in the exam the first time you take it.
Using relevant examples, you will learn all the important security fundamentals from Certificates and Encryption to Identity and Access Management concepts. You will then dive into the important domains of the exam; namely, threats, attacks and vulnerabilities, technologies and tools, architecture and design, risk management, and cryptography and Public Key Infrastructure (PKI).
This book comes with over 600 practice questions with detailed explanation that is at the exam level and also includes two mock exams to help you with your study plan. This guide will ensure that encryption and certificates are made easy for you.
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Current Title:
CompTIA Security+ Certification Guide
Table of Contents (18 chapters)
Preface
Free Chapter
Understanding Security Fundamentals
Conducting Risk Analysis
Implementing Security Policies and Procedures
Delving into Identity and Access Management
Understanding Network Components
Understanding Cloud Models and Virtualization
Managing Hosts and Application Deployment
Protecting Against Attacks and Vulnerabilities
Implementing the Public Key Infrastructure
Responding to Security Incidents
Managing Business Continuity
Mock Exam 1
Mock Exam 2
Preparing for the CompTIA Security+ 501 Exam
Acronyms
Assessment
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