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NEW QUESTION # 12
Which of the following depends on system time accuracy to function properly?
- A. Remote Authentication Dial-in User Service
- B. Terminal Access Controller Access-control System
- C. Kerberos token
- D. Wi-Fi Protected Access
Answer: C
Explanation:
The correct answer is B. Kerberos token, because Kerberos authentication relies heavily on precise system time synchronization between clients, servers, and the Key Distribution Center (KDC). Kerberos uses time- stamped tickets to prevent replay attacks, and even small time discrepancies can cause authentication failures.
According to the Quentin Docter - CompTIA A+ Complete Study Guide, Kerberos requires clocks on all participating systems to be synchronized within a narrow tolerance (typically five minutes). If system time is inaccurate, Kerberos will reject authentication requests, resulting in login failures and access denial.
The Travis Everett & Andrew Hutz - CompTIA A+ All-in-One Exam Guide explains that Kerberos tokens include timestamps to ensure tickets are valid only for a short time window. This security design protects against attackers reusing captured authentication data.
The Mike Meyers / Mark Soper Lab Manual reinforces that time synchronization issues are a common cause of Kerberos-related login problems in domain environments. Services like TACACS+, RADIUS, and WPA do not depend on strict system time synchronization in the same way Kerberos does.
Because Kerberos authentication cannot function correctly without accurate system time, B is the correct answer.
NEW QUESTION # 13
Which of the following commands is used to look up DNS records for a remote host?
- A. ip
- B. dig
- C. curl
- D. find
Answer: B
Explanation:
The dig command is used to query DNS servers and look up DNS records for a remote host.
NEW QUESTION # 14
A user is working from home and is unable to access work files on a company laptop. Which of the following should a technician configure to fix the network access issue?
- A. Proxy network settings
- B. Wide-area network
- C. Wireless network
- D. Virtual private network
Answer: D
Explanation:
A VPN creates a secure tunnel from the user's home network into the corporate network, providing the necessary routing and access controls for the laptop to reach internal file servers.
Without a VPN, the device remains outside the corporate LAN and cannot directly reach protected resources.
NEW QUESTION # 15
A technician uses AI to draft a proposal about the benefits of new software. When reading the draft, the technician notices that the draft contains factually incorrect information. Which of the following best describes this scenario?
- A. Hallucinations
- B. Plagiarism
- C. Data privacy
- D. Appropriate use
Answer: A
Explanation:
When an AI model generates plausible-sounding but factually inaccurate or fabricated information, it's referred to as a "hallucination." Identifying and correcting these errors is essential to ensure the accuracy and reliability of AI-assisted content.
NEW QUESTION # 16
A user wants to dispose of a failed hard drive in a way that ensures the data is unrecoverable. Which of the following is the best at-home method?
- A. Standard formatting
- B. Low-level formatting
- C. Shredding
- D. Degaussing
- E. Drilling
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Shreddingphysically destroys the platters, making data recovery virtually impossible. It's more effective and accessible than degaussing or low-level formatting.
FromQuentin Docter - CompTIA A+ Complete Study Guide:
"Physical destruction methods like shredding are the most secure options for ensuring data on failed drives cannot be recovered."
NEW QUESTION # 17
A client provides a large spreadsheet to a business analyst for review. When the analyst attempts to open the spreadsheet, the system freezes until the application crashes. Which of the following should a technician do next?
- A. Review event logs for error messages relating to the application.
- B. Run a malware scan on the file received from the client.
- C. Perform an upgrade on the spreadsheet application.
- D. Validate that the file extension of the shared spreadsheet is compatible.
Answer: A
Explanation:
Reviewing the event logs will reveal application-specific errors that explain why the spreadsheet causes the system to freeze and crash, allowing the technician to identify the root cause before taking further action.
NEW QUESTION # 18
Which of the following file types is best for performing automated tasks on startup on a Windows computer?
- A. SH
- B. BAT
- C. EXE
- D. MSI
Answer: B
Explanation:
The correct answer is C. BAT, because batch files are specifically designed to execute a sequence of commands automatically in Windows environments. They are commonly used for startup tasks such as launching applications, mapping network drives, setting environment variables, or running maintenance scripts.
According to the Quentin Docter - CompTIA A+ Complete Study Guide, batch files (.bat) are text-based scripts interpreted by the Windows Command Processor (cmd.exe). They are lightweight, easy to create, and can be placed directly in startup folders or scheduled through system tasks.
The Travis Everett & Andrew Hutz - All-in-One Exam Guide emphasizes that batch files are ideal for automation because they do not require compilation and can run without user interaction. This makes them well-suited for startup operations that must execute consistently every time the system boots or a user logs in.
The Mike Meyers / Mark Soper Lab Manual contrasts batch files with other file types: .sh files are used in Linux and macOS, .msi files are installer packages, and .exe files are compiled programs that may prompt user interaction or security warnings.
Because batch files are native to Windows, scriptable, and commonly used for startup automation, C. BAT is the correct answer.
NEW QUESTION # 19
You have been contacted through the help desk chat application. A user is setting up a replacement SOHO router. Assist the user with setting up the router.
INSTRUCTIONS
Select the most appropriate statement for each response. Click the send button after each response to continue the chat.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
Answer:
Explanation:
See explanation below.
Explanation:
First Chat Response:When the user mentions setting up a new router, the best initial response to maintain a helpful and professional tone is:
>Select reply:"I am happy to assist you today."
Second Chat Response:When the user states that they need to set up basic security settings:
>Select reply:"Is this the first router in your office?"
Third Chat Response:After learning it's a replacement router and the user is logged into the router's web page:
>Select reply:"The first thing you need to do is change the default password." Fourth Chat Response:For the response about password settings:
>Select reply:"Create a new password with an uppercase, a lowercase, and a special character." Fifth Chat Response:When the router prompts to reboot:
>Select reply:"Yes, reboot please."
Study Guide Reference: The CompTIA A+ Core 2 guide highlights the importance of changing default credentials and using strong password policies, particularly in SOHO environments where routers are often targeted.
NEW QUESTION # 20
A Windows 11 Home device is receiving constant pop-ups about an urgent need to update antivirus software to remove a detected threat. The user has been clicking the "X" button in the window frame but it always reappears. The pop-up includes an "OK" button to install the update and remove the threat. Which of the following should the user do next?
- A. Verify the current status and settings of protection measures
- B. Click the "OK" button to install the update
- C. Reinstall the Windows Operating System
- D. Run System File Checker
Answer: A
Explanation:
The user should verify the current status and settings of legitimate protection measures to determine if the pop-ups are real or part of a scam or malware infection, instead of clicking "OK" or taking drastic measures.
NEW QUESTION # 21
Recently, the number of users sharing smartphone passcodes has increased. The management team wants a technician to deploy a more secure screen lock method. Which of the following technologies should the technician use?
- A. Device encryption
- B. Facial recognition
- C. Multifactor authentication
- D. Pattern lock
Answer: B
NEW QUESTION # 22
A computer technician is implementing a solution to support a new internet browsing policy for a customer's business. The policy prohibits users from accessing unauthorized websites based on categorization. Which of the following should the technician configure on the SOHO router?
- A. Firewall
- B. Content filtering
- C. Secure management access
- D. Group Policy Editor
Answer: B
Explanation:
Content filtering on a SOHO router lets you block or allow websites based on their categories (e.g., social media, gambling, news). By defining which categories are unauthorized, the router enforces the browsing policy at the network edge, preventing users from reaching disallowed sites.
NEW QUESTION # 23
A support specialist must apply a new application update to an entire organization. Which of the following is the first step in this process?
- A. Backup plan
- B. Peer review
- C. Sandbox testing
- D. Request forms
Answer: C
Explanation:
Sandbox testing is performed first to validate the application update in a controlled environment, ensuring it functions correctly and does not introduce issues before deployment across the organization.
NEW QUESTION # 24
A customer asks a help desk technician for help in selecting new computers. The customer would like to avoid expensive licensing fees but would like all files to be kept locally. Which of the following operating systems should the technician recommend?
- A. Chrome OS
- B. Linux
- C. Windows
- D. macOS
Answer: B
Explanation:
Linux provides a full-featured OS without expensive licensing fees and allows all files to be stored locally, meeting the customer's requirements.
NEW QUESTION # 25
A network technician notices that most of the company's network switches are now end-of-life and need to be upgraded. Which of the following should the technician do first?
- A. Propose the change.
- B. Approve the change.
- C. Schedule the change.
- D. Implement the change
Answer: A
Explanation:
In a structured change-management process, the very first step is to propose (or formally request) the change via a Request for Change (RFC). This ensures stakeholders review the need, assess risks, and determine the priority before any approvals, scheduling, or implementation occur.
NEW QUESTION # 26
A user's new smartphone is not staying charged throughout the day. The smartphone charges fully every night. Which of the following should a technician review first to troubleshoot the issue?
- A. End of software support
- B. Storage usage
- C. Background applications
- D. Charger wattage
Answer: C
Explanation:
Background apps can consume significant battery by running processes, syncing data, or using location services throughout the day. Reviewing and limiting or disabling unnecessary background applications will help identify and mitigate excessive battery drain.
NEW QUESTION # 27
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