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  2. CompTIA Certification
  3. N10-008 Exam
  4. CompTIA.N10-008.v2025-06-03.q684 Dumps
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Question 126

A security analyst found the following vulnerability on the company's website:
<INPUT TYPE="IMAGE" SRC="javascript : alert ('test') ; ">
Which of the following should be implemented to prevent this type of attack in the future?

Correct Answer: A
Explanation
Input sanitization is the process of validating and filtering the user input to prevent malicious code or commands from being executed on the web server or the web browser. Input sanitization can prevent this type of attack, which is called cross-site scripting (XSS), by removing or escaping any special characters or scripts that are not expected or allowed in the input field. Input sanitization can be implemented on the server-side or the client-side, or both, to enhance the security of the web application.
References
1: Web Application Attacks - N10-008 CompTIA Network+ : 3.2
2: CompTIA Network+ N10-008 Certification Study Guide, page 317
3: CompTIA Network+ N10-008 Exam Subnetting Quiz, question 15
4: CompTIA Network+ N10-008 Certification Practice Test, question 6
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Question 127

A user stores large graphic files. The lime required to transfer the files to the server is excessive due to network congestion. The user's budget does not allow for the current switches to be replaced. Which of the following can be used to provide FASTER transfer times?

Correct Answer: B
Jumbo frames are Ethernet frames that can carry more than 1500 bytes of payload data. Jumbo frames can reduce the overhead and improve the throughput of large file transfers, as fewer frames are needed to send the same amount of data. Jumbo frames can be used to provide faster transfer times, as long as the network devices support them
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Question 128

A lab environment hosts Internet-facing web servers and other experimental machines, which technicians use for various tasks A technician installs software on one of the web servers to allow communication to the company's file server, but it is unable to connect to it Other machines in the building are able to retrieve files from the file server. Which of the following is the MOST likely reason the web server cannot retrieve the files, and what should be done to resolve the problem?

Correct Answer: B
Explanation
The lab environment is located in the DMZ, and traffic to the LAN zone is denied by default. This is the most likely reason why the web server cannot retrieve files from the file server, and the technician can either move the computer to another zone or request an exception from the administrator to resolve the problem. A DMZ (Demilitarized Zone) is a network segment that separates the internal network (LAN) from the external network (Internet). It usually hosts public-facing servers such as web servers, email servers, or FTP servers that need to be accessed by both internal and external users. A firewall is used to control the traffic between the DMZ and the LAN zones, and usually denies traffic from the DMZ to the LAN by default for security reasons. Therefore, if a web server in the DMZ needs to communicate with a file server in the LAN, it would need a special rule or permission from the firewall administrator. References:
https://www.cisco.com/c/en/us/support/docs/ip/access-lists/13608-21.html
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Question 129

A client moving into a new office wants the IP network set up to accommodate 412 network- connected devices that are all on the same subnet. The subnet needs to be as small as possible.
Which of the following subnet masks should be used to achieve the required result?

Correct Answer: C
An class C give you at most 256 addresses including network ID and broadcast address. In this case, we need more than 256 addresses while being smallest thus we looking at class B of at least 2 host size.
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Question 130

A technician is configuring a bandwidth-monitoring tool that supports payloads of 1,600 bytes. Which of the following should the technician configure for this tool?

Correct Answer: D
Jumbo frames are Ethernet frames that can carry more than the standard 1,500 bytes of payload data. Jumbo frames can support payloads of up to 9,000 bytes, depending on the network device and configuration. Jumbo frames can improve network performance by reducing the overhead of packet headers and increasing the efficiency of data transmission. Jumbo frames can also reduce the CPU utilization of the sender and receiver devices, as they require fewer interrupts and processing cycles. However, jumbo frames also have some drawbacks, such as increased latency, fragmentation, and compatibility issues. Therefore, jumbo frames should be used with caution and only in networks that support them end-to-end.
A technician who is configuring a bandwidth-monitoring tool that supports payloads of 1,600 bytes should enable jumbo frames for this tool, as this would allow the tool to capture and analyze more data per frame and provide more accurate and detailed results. However, the technician should also ensure that the network devices and interfaces that the tool is connected to also support jumbo frames, and that the MTU (maximum transmission unit) is set to the same value across the network path.
Reference
What are Jumbo Frames?
How to Enable Jumbo Frames
CompTIA Network+ Certification All-in-One Exam Guide, Eighth Edition (Exam N10-008)
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