CompTIA·APLUS · CompTIA A+·UnitAPLUS · Unit 02Access: Premium
A+ Core 2 (220-1202)
Prepare for A+ Core 2 (220-1202) with CompTIA practice questions covering 30 topics. Part of CompTIA A+ — build your knowledge and track your progress with CompTIA Prep.
What’s in it.
30 topics- Topic 01
Windows OS Editions and Features
87 questions - Topic 02
Windows Installation and Upgrades
90 questions - Topic 03
Windows Command-Line Tools
57 questions - Topic 04
Windows Control Panel and Settings
87 questions - Topic 05
Windows Networking Configuration
90 questions - Topic 06
Windows System Tools
105 questions - Topic 07
macOS Features and Tools
63 questions - Topic 08
Linux Concepts and Commands
57 questions - Topic 09
Mobile OS Management
90 questions - Topic 10
OS Virtualisation
57 questions - Topic 11
Malware Types and Characteristics
45 questions - Topic 12
Physical Security Measures
51 questions - Topic 13
Logical Security Concepts
57 questions - Topic 14
Windows Security Settings
90 questions - Topic 15
Data Destruction and Disposal
90 questions - Topic 16
Browser and Email Security
57 questions - Topic 17
Wireless Security Protocols
90 questions - Topic 18
Social Engineering Attacks
90 questions - Topic 19
Troubleshooting Windows OS Problems
90 questions - Topic 20
Troubleshooting Application Issues
90 questions - Topic 21
Troubleshooting Malware Infections
90 questions - Topic 22
Troubleshooting Mobile OS Issues
54 questions - Topic 23
Troubleshooting Windows Security Issues
90 questions - Topic 24
Documentation and Change Management
55 questions - Topic 25
Disaster Recovery and Backup
55 questions - Topic 26
Safety Procedures
90 questions - Topic 27
Environmental Impact and Controls
54 questions - Topic 28
Professionalism and Communication
90 questions - Topic 29
Scripting Basics
90 questions - Topic 30
Remote Access Tools
52 questions
Sample questions
3 of manyA few questions from this unit, with the answer and a full explanation. The complete bank is available when you start practising.
A bank's production web server suddenly shows expired certificate errors for all users. The certificate was valid yesterday. The technician confirms the server's clock is correct and the certificate's expiry date is six months away. What should the technician check next?
- Whether the certificate has been revoked by the Certificate Authority via CRL or OCSPCorrect answer
- Whether the Certificate Authority has updated its root certificate, invalidating all previously issued certificates
- Whether the domain registrar has expired the domain, causing the certificate to become invalid
- Whether the firewall is blocking port 443 and causing browsers to misinterpret connection errors as certificate errors
ExplanationWhen a certificate appears invalid despite showing a future expiry date, revocation is the primary suspect. CAs can revoke certificates at any time due to key compromise or policy violation; revocation is published via Certificate Revocation Lists (CRL) or OCSP. Browsers that check revocation status will reject a revoked certificate even if the dates are valid. The key takeaway is that a certificate can fail before expiry if it has been revoked.
A user complains that every website they visit now shows banner advertisements inserted between paragraphs, even on news sites they have used ad-free for years. The ads are not shown in other browsers on the same machine. What is the most likely cause?
- The user's antivirus software is intercepting pages and inserting security banners that look like ads
- A malicious browser extension installed in that specific browser is injecting advertisements into web pagesCorrect answer
- The news sites have updated their advertising policy and are now displaying ads to all users
- The user accidentally enabled a built-in browser ad-injection feature in the browser's settings
ExplanationBecause the issue is isolated to one browser on the machine, the root cause is something specific to that browser — most likely a malicious extension with permission to read and modify page content. If the router were compromised, all browsers would be affected. The key takeaway is that ad injection in only one browser points to a malicious extension in that browser specifically.
A standard user on a Windows 10 workstation double-clicks an installer that requires administrative privileges. What does UAC display, and what must the user provide to continue?
- A Yes/No confirmation dialog that the user can dismiss without entering credentials
- An error message stating the installation is permanently blocked
- A BitLocker recovery prompt to verify drive integrity before proceeding
- A credential prompt asking for an administrator's username and passwordCorrect answer
ExplanationWhen a standard user triggers an action that requires elevation, UAC shows an over-the-shoulder (OTS) credential prompt, requiring a local or domain administrator's username and password. This differs from the admin experience where only a Yes/No confirmation is needed. The credential prompt enforces accountability because the action is tied to the administrator who approved it. Key takeaway: Standard users cannot self-elevate — an admin must supply credentials at the UAC prompt.