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Question 786 - N10-008 discussion

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A technician is troubleshooting servers with high CPU usage. While trying to connect, the technician needs to open a port for remote access. Which of the following ports should the technician open?

A.
443
Answers
A.
443
B.
3321
Answers
B.
3321
C.
8080
Answers
C.
8080
D.
5900
Answers
D.
5900
Suggested answer: D

Explanation:

Port 5900 is the default port used by Virtual Network Computing (VNC), a graphical desktop-sharing system that allows remote access to another computer's screen, keyboard and mouse1. VNC is one of the tools that can be used for remote troubleshooting of servers with high CPU usage, as it enables the technician to see the server's desktop and perform actions on it. Port 5900 is also one of the ports listed in the CompTIA Network+ N10-008 exam objectives under the section '1.4 Given a scenario, use appropriate software tools to troubleshoot connectivity issues'2.

The other ports are not commonly used for remote access. Port 443 is used for Hypertext Transfer Protocol Secure (HTTPS), a secure version of HTTP that encrypts the communication between a web browser and a web server3. Port 3321 is used for Telepathy Broker Service, a service that provides communication between applications and telephony devices4. Port 8080 is used for HTTP Alternate, an alternative port for HTTP that is often used by web servers for testing or proxy purposes5.

Reference

1: Port 5900: What Is It Used for & How to Open It for RDP

2: Network+ (Plus) Certification | CompTIA IT Certifications

3: [What is HTTPS? - Definition from WhatIs.com]

4: [Telepathy Broker Service - Port 3321 - TCP/UDP]

5: [What is Port 8080? Why do some processes use this port?]

asked 02/10/2024
Sander de Beus
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