Remote Access

Posted by in Security+ | 0 comments

If you’re planning on taking the Security+ exam, you should have a basic understanding of network design elements and components, including remote access methods. For example, can you answer this question?

Q. Management within your organization wants some users to be able to access internal network resources from remote locations. Which of the following is the BEST choice to meet this need?

A. WAF

B. VPN

C. IDS

D. IPS

More, do you know why the correct answer is correct and the incorrect answers are incorrect? The answer and explanation is available at the end of this post.

Full Security+ (SY0-401) Course

Full Security+ Course Now Available

Helping you Pass the First Time

Online access includes all of the content from the

CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide

  • Introduction
  • About the exam (including types of questions and strategies for performance-based questions)
  • 100 question pre-assessment exam
  • Mastering Security Basics (full content from Chapter 1 of the study guide including the exam topic review and 20 practice test questions)
  • Exploring Control Types and Methods (full content from Chapter 2 of the study guide including the exam topic review and 20 practice test questions)
  • Understanding Basic Network Security (full content from Chapter 3 of the study guide including the exam topic review and 20 practice test questions)
  • Securing Your Network (full content from Chapter 4 of the study guide including the exam topic review and 20 practice test questions)
  • Securing Hosts and Data (full content from Chapter 5 of the study guide including the exam topic review and 20 practice test questions)
  • Understanding Malware and Social Engineering (full content from Chapter 6 of the study guide including the exam topic review and 20 practice test questions)
  • Identifying Advanced Attacks (full content from Chapter 7 of the study guide including the exam topic review and 20 practice test questions)
  • Managing Risk (full content from Chapter 8 of the study guide including the exam topic review and 20 practice test questions)
  • Preparing for Business Continuity (full content from Chapter 9 of the study guide including the exam topic review and 20 practice test questions)
  • Understanding Cryptography (full content from Chapter 10 of the study guide including the exam topic review and 20 practice test questions)
  • Exploring Operational Security (full content from Chapter 11 of the study guide including the exam topic review and 20 practice test questions)
  • 100 question post-assessment exam
  • Security+ Acronyms

Get the Full Security+ Course Here

 Full Security+ Course Now Available


Test your readiness with these quality materials

Random 100-question tests

Random practice tests from the all of the practice test questions in the CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide. All questions include explanations so you'll know why the correct answers are correct, and why the incorrect answers are incorrect.

34 Simulated Performance-based Questions

Eight sets of performance-based questions with multiple questions in each set. These questions help you understand and prepare for performance based questions.

22 Realistic Performance-based Questions

Two new sets of performance-based questions with a total of 22 questions. These new questions use a new testing engine that includes realistic drag and drop, matching, sorting, and fill in the blank questions.

Flashcard Set

  • 273 Security+ Flashcards to reinforce key testable concepts
  • 280 Security+ acronyms flashcards to help you master the required acronyms
  • 204 Security+ Remember This slides

Audio - SY0-401 Security+ Remember This Audio Files

Learn by Listening. Over one hour and 15 minutes of audio (MP3 downloads.)

Audio - SY0-401 Security+ Question and Answer Audio Files

Learn by Listening. Over three hours hour and 15 minutes of audio (MP3 downloads.)

Bonus #1

Audio from the end of chapter reviews from each of the chapters in the CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide. Over one hour and 15 minutes of additional audio.

Bonus #2

Subnetting mini-tutorial that will help you answer two key question types:
  • Identify how many hosts a subnet supports
  • Identify valid IP addresses within a subnet

Bonus #3 

Access the study materials for a total of 60 days because sometimes life happens.

Get the Full Security+ Course Here

Remote access is the group of technologies that allow users to access an internal network from remote locations. Remote Access Service (RAS) provides access through dial-up or virtual private networks (VPNs). Several components come together to form a successful RAS solution. They include access methods such as through dial-up or a VPN, authentication methods, and network access control (NAC) technologies to inspect clients before granting them access to the network.

Telephony

Telephony is the use of telephone technologies to connect computers. Historically, telephony referred to the technical elements related to analog voice-based telephone systems. However, it has grown and now includes the technical elements supporting both analog and digital voice systems, along with fax and data transmissions. Although plain old telephone service (POTS) transmission wires still exist in many areas of the world, much of the underlying infrastructure supports broadband digital transmissions.

An extension of telephony is Internet telephony, also known as Voice over Internet Protocol (VoIP). VoIP phones allow users to make phone calls using a network connection with access to the Internet, rather than traditional phone systems.

Get Certified Get Ahead

Dial-Up RAS

Dial-up Remote Access Service (RAS) uses telephony technologies, including phones and modems. Both the client and server need access to phone lines, and each must have a modem. Dial-up RAS allows the client to have access to a remote network over traditional phone wires.

As a simple example, I was a traveling trainer for many years. While I was on the road, I could dial in to the RAS server using a laptop with a modem anytime I needed access to the company network. Once I connected, I could access resources on the network similar to how I could access the resources if I was at my desk at work—just not as quickly because I was using a 56K dial-up modem.

The client has a modem and access to a phone line and can dial directly into the RAS server. The RAS server also has a modem and access to a phone line. Once connected, the RAS server provides access to the internal network.Network Access Control

The primary protocol used for dial-up access is Point-to-Point Protocol (PPP). When it was developed, tapping phone lines was considered rare, so PPP didn’t include much security. However, PPP is often combined with other protocols to enhance security of the connection.

Long-distance phone costs can make dial-up cost prohibitive. VPNs provide better security than a dial-up solution and can reduce phone costs.

VPNs and VPN Concentrators

A virtual private network (VPN) allows a connection to a private network over a public network. The public network is most commonly the Internet, but it can also be a semiprivate leased line from a telecommunications company. Because the telecommunications company will often lease access to one physical line to several companies, the leased line is not truly private.

Access over a public network is a core security concern with VPNs. Different tunneling protocols encapsulate and encrypt the traffic to protect the data from unauthorized disclosure.

In large organizations, the VPN server is a VPN concentrator. A VPN concentrator includes all the services needed by a VPN server, including strong encryption and authentication techniques, and supports a large number of clients.

CompTIA Security+ Study Guide

The 401 Version of the Study Guide

SY0-401 Study GuideThe CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide is an update to the top-selling SY0-201 and SY0-301 study guides, which have helped thousands of readers pass the exam the first time they took it.

CompTIA Authorized Quality Content (CAQC)After a comprehensive review by ProCert Labs, the SY0-401 version has been certified as CompTIA Approved Quality Content (CAQC) and covers every aspect of the SY0-401 exam.

It includes the same elements readers raved about in the previous two versions.

Each of the eleven chapters presents topics in an easy to understand manner and includes real-world examples of security principles in action.

You’ll understand the important and relevant security topics for the Security+ exam, without being overloaded with unnecessary details. Additionally, each chapter includes a comprehensive review section to help you focus on what’s important.


Click for Free Preview


Over 400 realistic practice test questions with in-depth explanations will help you test your comprehension and readiness for the exam. The book includes:

  • A 100 question pre-test
  • A 100 question post-test
  • Practice test questions at the end of every chapter.

Each practice test question includes a detailed explanation to help you understand the content and the reasoning behind the question. You’ll be ready to take and pass the exam the first time you take it.

If you plan to pursue any of the advanced security certifications, this guide will also help you lay a solid foundation of security knowledge. Learn this material, and you’ll be a step ahead for other exams. This SY0-401 study guide is for any IT or security professional interested in advancing in their field, and a must read for anyone striving to master the basics of IT security.

Kindle edition also available.

Are you looking for SYO-501 Study Guide?

The 501 Version of the Study Guide is Now Available. Click Here.


 

Q. Management within your organization wants some users to be able to access internal network resources from remote locations. Which of the following is the BEST choice to meet this need?

A. WAF

B. VPN

C. IDS

D. IPS

Answer is B. A virtual private network (VPN) provides access to a private network over a public network such as the Internet via remote locations and is the best choice.

A web application firewall (WAF) provides protection for a web application or a web server.

Intrusion detection systems (IDSs) and intrusion prevention systems (IPSs) protect networks, but do not control remote access.

See Chapter 4 of the CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide for more information on securing network.

You may like to view a blog post about Implementing VPNs.

Leave a Comment

CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide

Subscribe To Our Newsletter

Join our mailing list and get a free excerpt of the CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide.  This excerpt includes the introduction and Chapter 1.

You have Successfully Subscribed!

Get Certified Get Ahead is a participant in the Amazon Services LLC Associates Program,
an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com.

Copyright © 2015 Get Certified Get Ahead. All Rights Reserved.