- (Topic 1)
A technician needs to ensure all data communications on all network devices are encrypted when logging in to the console. Which of the following protocols should the technician enable?

Correct Answer:A
SSH (Secure Shell) encrypts data communications for secure remote login and management of network devices, ensuring all console connections are encrypted.
Why Not B (LDAP): LDAP is used for directory services and does not encrypt by default. Why Not C (FTPS): FTPS encrypts file transfers, not console communications.
Why Not D (SMTP): SMTP is used for email transmission, not for securing login sessions. CompTIA A+ Exam Reference: Core 1 (220-1201), Section 2.7, network security protocols.

- (Topic 1)
A technician receives a tablet that looks like it has a bulge inside. The bulge is pushing the screen away from the backplate. The tablet still turns on when it is plugged in, but the screen looks damaged and turns off when unplugged. Which of the following is the most likely cause of this issue?

Correct Answer:C
Comprehensive and Detailed In-Depth Explanation:
Abulging tablet casingis a classic sign of aswollen lithium-ion battery, often caused by age, overheating, or overcharging. This is adangerous condition, as swollen batteries can rupture or catch fire. It also explains why the tablet only works when plugged in — the battery is no longer holding a charge.
✑ Option A:Power supply issues wouldn??t cause physical bulging.
✑ Option B:A bad charge port wouldn??t cause screen damage or physical distortion.
✑ Option D:A broken screen could cause display issues, but not the bulging chassis. CompTIA A+ Core 1 Exam Objective Reference:
✑ Objective 1.4: Given a scenario, configure settings and use cases for laptops and mobile devices.
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- (Topic 1)
When turning on a workstation, a technician observes the following message: "Bootable device not found."
The technician verifies the correct boot order in the BIOS. Which of the following steps should the technician take next?

Correct Answer:B
Comprehensive and Detailed In-Depth Explanation:
If the system reports??Bootable device not found??, and the BIOS is configured correctly, the next step is torun diagnostics on the hard driveto check for physical or logical failure. It could be a sign of afailing drive or corrupt boot sector.
✑ Option A:Reformatting the drive would erase data — not a diagnostic step.
✑ Option C:RAM does not affect whether a drive is bootable.
✑ Option D:Replacing the drive should only be doneafter diagnostics confirm failure. CompTIA A+ Core 1 Exam Objective Reference:
✑ Objective 3.5: Given a scenario, troubleshoot problems related to storage devices.

- (Topic 1)
Several storms cause mission-critical servers to go offline unexpectedly A server also goes offline suddenly due to haroNvare failure Upon assessment the company purchases new UPSs to condition power and allow the OSs to shut down gracefully in the event of a power failure However, the UPSs are delayed due to supply chain issues Which of the following can balance a cost-effective solution with uptime requirements?

Correct Answer:C
* C. Installing redundant PSUs (Power Supply Units):
Redundant PSUs provide fault tolerance by ensuring that if one power supply fails, another will take over seamlessly.
This is a cost-effective way to increase uptime while waiting for the UPSs to arrive. Incorrect Options:
* A. Purchasing backup generators: Generators are costly and are typically used for long- term outages, not as an immediate or cost-effective solution.
* B. Increasing input voltage: This is not a practical solution to hardware failures or power issues.
* D. Activating a hot site: A hot site is an expensive, fully operational backup facility that would not be a cost-effective solution for this scenario.
Key Takeaway: Installing redundant PSUs is a cost-effective way to balance uptime requirements in case of power or hardware failure.
Reference: CompTIA A+ Core 1 Exam Objectives (220-1201), Domain 5.3 – Power-related troubleshooting.