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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Software Troubleshooting | 23% | - Mobile and application troubleshooting
|
| Topic 2: Operational Procedures | 21% | - Safety and compliance
|
| Topic 3: Operating Systems | 28% | - OS installation and configuration
|
| Topic 4: Security | 28% | - Security best practices
|
多くの受験者にとって、220-1202試験資格証明書を取得することは簡単ではないです。220-1202試験に合格するには、たくさん時間と精力が必要です。しかし、CompTIA 220-1202試験参考書を選ばれば、試験に合格するだけでなく、時間を節約できます。だから、CompTIA 220-1202試験参考書を早く購入しましょう！
質問 # 277
Which of the following is an example of an application publisher including undisclosed additional software in an installation package?
正解：A
解説：
A potentially unwanted program (PUP) refers to software bundled with an installer that the user did not explicitly request and that's often advertised or installed without clear disclosure. While not always malicious, PUPs can degrade performance or introduce unwanted behavior, matching the description of undisclosed additional software in a package.
質問 # 278
Welcome to your first day as a Fictional Company, LLC helpdesk employee. Please work the tickets in your helpdesk ticket queue.
INSTRUCTIONS
Click on individual tickets to see the ticket details, and view applicable attachments to determine the problem.
Select the appropriate issue from the 'Issue' drop-down menu. Then, select the most efficient resolution from the 'Resolution' drop-down menu. Finally, select the proper command or verification to remediate or confirm your fix of the issue from the
'Verify/Resolve' drop-down menu.
正解：
解説：
Explanation:
Ticket #8675310
* Issue: Limited network connectivity
* Resolution: Refresh DHCP
* Verify/Resolve: ipconfig /renew
For the Low priority ticket #8675310 ("A small yellow triangle appeared in the taskbar. I am no longer able to access network resources."), the Windows yellow triangle on the network icon is the classic indicator of limited connectivity (often caused by a bad/expired DHCP lease, APIPA address, missing default gateway, or DNS info not being assigned).
Correct PBQ Selections (Ticket #8675310)
Issue
Limited network connectivity
Why (CompTIA logic):
That yellow warning triangle means the NIC is connected at Layer 2 (link is up), but the system likely doesn't have valid Layer 3 config (IP/gateway/DNS), so it can't reach network resources.
Resolution
Refresh DHCP
Why this is the most efficient fix:
When a Windows PC can't access network resources and shows "limited connectivity," the fastest, lowest- risk fix is to renew DHCP so the PC can pull:
* a valid IP address
* default gateway
* DNS servers
This directly resolves the most common root cause behind that icon.
Verify / Resolve
ipconfig /renew
Why this is the correct verification/remediation command:
ipconfig /renew is the direct command to request a fresh DHCP lease. After renewal, the user should regain access to network resources if DHCP was the issue.
What this fixes (what you'd expect to see)
Before the fix, the attachment (Output.txt) in these PBQs typically shows symptoms like:
* 169.254.x.x (APIPA) # DHCP failed
* Missing/blank Default Gateway
* DNS not present or incorrect
After ipconfig /renew, you should see a normal private IP (like 192.168.x.x / 10.x.x.x / 172.16-31.x.x) and a valid gateway/DNS.
質問 # 279
An end user reports that their computer will not load Windows. Which of the following should a technician check after inspecting the computer hardware and verifying that it is working properly?
正解：A
解説：
If the hardware is functioning properly but Windows does not load, the technician should verify that the system is configured to boot from the correct drive. An incorrect boot order can prevent the system from locating the installed operating system.
質問 # 280
Which of the following should be used to verify the integrity of a downloaded patch?
正解：D
解説：
To verify integrity, you must confirm the file you downloaded matches the vendor's original file and hasn't been altered in transit or replaced by malware. Quentin Docter explains the best preventive measure is to create a Secure Hash Algorithm (SHA) hash of the executable and store it separately; before running the installer, "run the hashing against the install and check its signature. If the signature matches, then the installer has not been tampered with." The All-in-One Exam Guide reinforces that verifying installers "always involves one or more cryptographic techniques such as hashing and/or code signing," and defines a checksum
/hash as a cryptographic "digital fingerprint" you can recompute after downloading to confirm the fingerprints match. Mike Meyers' Lab Manual states the same action step: if you manually download an installer, "verify its code signature or use hashing to confirm the installer you downloaded matches the checksums published by the vendor." Private browsing and Secure DNS do not validate file integrity, and trusted plug-ins are unrelated. Hence, Hashing (C) is correct.
質問 # 281
A technician is 3-D printing high-strength, carbon fiber-based filament parts for a customer order.
Which of the following is the most important for the technician to use?
正解：A
解説：
An air filter mask is most important because 3-D printing carbon fiber-based filaments can release fine particles and fumes that are hazardous if inhaled.
質問 # 282
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