Latest NS0-521 Exam Questions

A.   Time drift

Answer DescriptionExplanation: Time drift occurs when the internal clock of a computer is not properly synchronized, often leading to discrepancies like being an hour behind. In this case, the workstation is the only device affected, indicating that it's likely a local issue. Time drift can happen if the system clock isn't syncing properly with an NTP (Network Time Protocol) server or if automatic daylight savings adjustments aren't enabled. It's less likely to be a CMOS battery issue since the technician has already verified the correct date and the system clock isn’t completely reset (which is what happens when the CMOS battery fails).

B.   Folder redirection

A.   ipr

Answer DescriptionExplanation: In Linux, the lp command is used to manage print jobs, including setting the default printer. The lp command allows users to send print jobs to a printer queue, check the status of print jobs, and cancel print jobs, among other functionalities. By using options and parameters with the lp command, a technician can specify a particular printer as the default for future print jobs, ensuring that documents are routed to the correct printer without needing to specify it each time.

C.   Implement the change.

C.   Backup of critical data


D.   Device drivers

Answer DescriptionExplanation: To safely upgrade the Microsoft Windows 10 OS, it is essential to backup critical data (C) and ensure that you have the necessary device drivers (D). Backing up critical data protects against potential data loss during the upgrade process. Having the correct device drivers ensures that the hardware components function properly with the new OS version, preventing issues like loss of functionality or compatibility problems​​.

B.   The user downloaded malware.

D.   Perform a full-system, antivirus scan and check browser notifications.

Answer DescriptionExplanation: For issues related to constant, unwanted pop-ups and browser window problems, a careful approach that minimizes impact to the user's data and productivity is advisable:
Perform a full-system, antivirus scan: This step involves using antivirus software to scan the entire system for malware or adware that might be causing the pop-ups and browser issues.
Check browser notifications: Some unwanted pop-ups may result from browser notification permissions inadvertently granted to malicious or spammy websites. Reviewing and adjusting these settings can help stop the pop-ups.

C.   Reduced space requirements

Answer DescriptionExplanation: One of the key environmental benefits of using virtualization is the reduction in physical space requirements. Virtualization allows multiple virtual machines to run on a single physical server, reducing the need for multiple physical servers. This consolidation leads to fewer physical machines, saving space in data centers and reducing the overall physical footprint.
A. Greater energy consumption is incorrect as virtualization typically leads to reduced energy consumption due to the consolidation of hardware.
B. Noise pollution can be reduced because fewer physical machines often mean less overall noise.
D. Fewer maintenance needs is a possible benefit but not directly related to environmental effects like reduced space requirements.
References:
CompTIA A+ Core 2 (220-1102) Exam Objectives, Section 4.5: Summarizing environmental impacts and local environmental controls, including the benefits of virtualization​​.

D.   EFS

A.   Install antispyware

Answer DescriptionExplanation: The presence of pop-up windows advertising free software and the error message about memory are indicative of spyware infection. Installing and running antispyware software is a practical first step to remove the unwanted software and resolve the issue without resorting to more drastic measures like re-imaging the system.