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Question

Difficulty: EasyVirtual Private Networks and Remote Access Security

A network administrator needs to allow remote employees to securely access internal web applications using only a standard web browser, without requiring any dedicated software installation on user endpoints. Which remote access VPN technology best satisfies this requirement?

  1. Clientless SSL/TLS VPNAnswer
  2. B
    IPsec VPN in tunnel mode
  3. C
    L2TP encapsulated in IPsec
  4. D
    GRE tunnel over IPsec

Answer

Clientless SSL/TLS VPN
A clientless SSL/TLS VPN provides secure access to internal web application portals through a standard web browser over HTTPS, eliminating the need to install, configure, or maintain VPN client software on remote end-user devices.

Step-by-Step Solution

1
Analyze the access and deployment constraints in the scenario
The target resources are web applications, and endpoints must not require dedicated software installation.
Eliminating client software deployment narrows the options to browser-native remote access mechanisms.
2
Evaluate VPN protocol client requirements
SSL/TLS VPNs leverage standard HTTPS sessions built into web browsers, whereas IPsec, L2TP, and GRE require operating system drivers or dedicated VPN client software.
Selecting the protocol that natively interfaces with web browsers satisfies the clientless constraint.

Key Concept

Clientless SSL/TLS Remote Access VPN
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Topics

Virtual Private Networks and Remote Access Security

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