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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Hardware | 25% | - PC hardware components
|
| Topic 2: Hardware and Network Troubleshooting | 29% | - Troubleshooting methodology
|
| Topic 3: Virtualization and Cloud Computing | 11% | - Cloud computing concepts
|
| Topic 4: Networking | 20% | - Network fundamentals
|
| Topic 5: Mobile Devices | 15% | - Mobile device hardware and components
|
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NEW QUESTION # 584
A technician needs to redirect users from an old internal web server to a new server that was just installed. Which of the following would redirect users to the new server?
Answer: B
Explanation:
A CNAME record creates an alias that points one hostname to another hostname. Updating the old internal web server's DNS name with a CNAME record can redirect users to the new server without requiring them to use a different URL.
NEW QUESTION # 585
A user reports poor performance on the application server.
INSTRUCTIONS
Click on Server 1 and Server 2 and review the information presented in each chart to determine which drives need to be replaced.
Select the appropriate replacement drive that should be used, for the least performance degradation to the server.
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 the detailed solution in explanation below.
Explanation:
The degraded status on Server 2 indicates a RAID-5 issue, typically due to a failed or failing drive. In RAID-5 configurations, when one drive fails, the system can still operate but with reduced performance as parity data is used to rebuild missing data on-the-fly.
Recommended Replacement Drive:
To minimize performance degradation, the replacement drive should be:
SAS HDD with the same specifications (64KB stripe size, no read-ahead, and write-back policy).
Matching the configuration exactly ensures seamless integration and optimizes recovery speed in the RAID-5 array.
In RAID-5, degraded performance is expected when one drive fails, as parity data needs to rebuild missing information during each read/write process. Replacing the failed drive restores the RAID array to optimal status, reducing the load on existing drives and returning the system to normal read/write performance. The write-back policy and disabled disk cache settings are designed to reduce latency and increase efficiency, essential for handling real-time applications.
A user reports poor performance on the
application server.
INSTRUCTIONS
Click on Server 1 and Server 2 and review
the information presented in each chart to
determine which drives need to be replaced.
Select the appropriate replacement drive
that should be used, for the least
performance degradation to the server.
A computer server with many black and silver parts AI-generated content may be incorrect.A computer server with many black boxes Description automatically generated with medium confidence
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A computer screen shot of a computer AI-generated content may be incorrect.A computer screen shot of a computer Description automatically generated
A screenshot of a computer AI-generated content may be incorrect.A screenshot of a computer Description
automatically generated
A screenshot of a computer AI-generated content may be incorrect.A screenshot of a computer Description
automatically generated
NEW QUESTION # 586
Which of the following will most likely be used in a testing environment to execute unauthorized or experimental code without affecting production systems?
Answer: C
Explanation:
CompTIA A+ strongly emphasizes that virtual machines (VMs) are ideal for testing potentially unsafe software, malware samples, or experimental code because they isolate the environment from the host system. VMs allow snapshots, cloning, and rollback functionality, which makes them essential in development, QA, and cybersecurity environments where code might be unstable or harmful.
Hybrid cloud refers to infrastructure strategy, not code execution isolation. Load balancers distribute production traffic but have no testing or sandboxing purpose. Application gateways filter traffic but do not provide execution environments.
Virtual machines create a safe sandbox where failure, infection, or corruption is contained. This is covered in the Virtualization and Cloud Computing domain of the CompTIA A+ exam, making VMs the correct tool for executing unauthorized code safely.
NEW QUESTION # 587
Which of the following cloud characteristics allows local folders to contain updates that are made by users on other devices?
Answer: A
Explanation:
Synchronization ensures that changes made to files on one device are automatically updated and reflected in local folders on other devices connected to the same cloud service.
NEW QUESTION # 588
Two workstations are connected to a LAN that does not have internet access. A user reports that they are unable to access a network service after a power outage. The web page warns the user that the site is insecure.
Which of the following will most likely resolve the certificate error? (Select two)
Answer: C,E
Explanation:
Certificate security warnings commonly occur when a system cannot properly validate the validity period of an SSL/TLS certificate. According to CompTIA Core 1 (220-1201) networking and security fundamentals, two of the most common causes of certificate errors are expired certificates and incorrect system date and time.
After a power outage, systems without internet access cannot automatically synchronize time with an NTP server. If the system clock resets or becomes inaccurate, the browser may interpret a valid certificate as expired or not yet valid, triggering an "insecure site" warning. Setting the correct system date and time in the BIOS immediately resolves this mismatch and is a primary troubleshooting step.
Additionally, renewing the SSL certificate resolves errors if the certificate has legitimately expired or was invalid at the time of access. This is especially relevant for internal network services using self-signed or internally managed certificates.
Replacing the CMOS battery can prevent future time resets but does not immediately correct the certificate error. Adjusting browser security settings is unsafe and not recommended. Firewall port configuration and network scanning are unrelated to certificate validation.
CompTIA emphasizes validating time/date accuracy and certificate status as core steps when resolving certificate-related security warnings.
References:CompTIA A+ Core 1 (220-1201) Official Study Guide - Certificates, HTTPS, System Time, and Network Security
NEW QUESTION # 589
......
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