A company recently transitioned to a cloud-based productivity suite and wants to secure the environment from external threat actors. Which of the following is the most effective method?
Correct Answer:
A
Comprehensive and Detailed Explanation From Exact Extract:
Multifactor authentication (MFA) is considered one of the most effective security measures for cloud environments. It requires users to verify their identity using two or more factors (e.g., password + phone app code), making it significantly harder for external attackers to gain access, even if the primary password is compromised.
* B. Encryption is important for data protection but doesn??t prevent unauthorized logins.
* C. Backups protect against data loss but don??t stop breaches.
* D. Strong passwords are helpful but can still be phished or cracked — MFA adds a critical
extra layer. Reference:
CompTIA A+ 220-1102 Objective 2.2: Compare and contrast authentication technologies. Study Guide Section: Cloud security best practices — MFA and access control
An application's performance is degrading over time. The application is slowing, but it never gives an error and does not crash. Which of the following tools should a technician use to start troubleshooting?
Correct Answer:
C
Comprehensive and Detailed Explanation From Exact Extract: Resource Monitor provides real-time monitoring of system performance and resource usage, including CPU, memory, disk, and network usage. It helps technicians identify
performance bottlenecks (e.g., high memory or CPU usage) that can cause slowdowns in applications over time without producing crash errors.
* A. Reliability history logs application crashes or errors — not helpful if the app doesn??t crash.
* B. Computer Management is a broad utility with limited real-time monitoring capability.
* D. Disk is too vague — tools like CHKDSK can help with disk errors but not general performance degradation.
Reference:
CompTIA A+ 220-1102 Objective 3.2: Given a scenario, troubleshoot common personal computer issues.
Study Guide Section: System performance tools — Resource Monitor, Task Manager
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Which of the following methods would make data unrecoverable but allow the drive to be repurposed?
Correct Answer:
C
Comprehensive and Detailed Explanation From Exact Extract:
A low-level format (also referred to as a zero-fill or full format) writes over every sector on a storage device, effectively destroying the existing data and making recovery nearly impossible. Unlike degaussing, which renders the drive unusable, a low-level format maintains the integrity of the device, allowing it to be repurposed or reused.
* A. Deleting partitions does not fully erase data; it only removes references in the partition table.
* B. EFS (Encrypting File System) encrypts files but does not securely wipe them.
* D. Degaussing destroys the magnetic structure of a drive, making it inoperable and not reusable.
Reference:
CompTIA A+ 220-1102 Objective 4.3: Given a scenario, implement basic change management best practices.
Study Guide Section: Drive sanitation methods — low-level format vs. degaussing vs. deletion
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A company executive is currently attending a major music festival with a large number of attendees and is having trouble accessing a work email account. The email application is not downloading emails and also appears to become stuck during connection attempts. Which of the following is most likely causing the disruption?
Correct Answer:
C
Comprehensive and Detailed Explanation From Exact Extract:
At large events such as music festivals, cellular towers may become congested due to the high volume of users attempting to connect simultaneously. This congestion causes slow or failed data connections, which explains the email application being unable to sync or connect. This is a common real-world mobile connectivity issue in crowded areas.
* A. Lack of storage would prevent saving attachments, not prevent connection attempts.
* B. Company firewalls usually don??t affect mobile access unless specific device restrictions are enforced.
* D. Organizers do not have the ability to block the internet signal; only carriers manage mobile bandwidth.
Reference:
CompTIA A+ 220-1102 Objective 3.3: Troubleshoot mobile OS and connectivity issues. Study Guide Section: Mobile network limitations — signal congestion and bandwidth issues
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A technician notices that the weekly backup is taking too long to complete. The daily
backups are incremental. Which of the following would most likely resolve the issue?
Correct Answer:
D
Comprehensive and Detailed Explanation From Exact Extract:
A synthetic full backup combines the last full backup with subsequent incremental backups to create a new full backup without re-reading data from the source system. This method significantly reduces the backup window and network impact. It is especially useful when traditional full backups are too time-consuming.
* A. Changing the backup window only shifts timing, not duration.
* B. Incremental weekly backups would lack a proper full recovery point and aren't ideal alone.
* C. Storage space isn't the bottleneck in backup speed—it??s read/write operations and network load.
Reference:
CompTIA A+ 220-1102 Objective 4.2: Summarize backup and recovery concepts.
Study Guide Section: Backup types — full, incremental, differential, and synthetic backups
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