CompTIA A+® Certification All-In-One For Dummies®, 2nd Edition

1.7. Answers

1. C. Ammonia- and benzene-based cleaners are too strong for most computer components. Although alcohol is not used as often as dry or water-moistened cloths, it is still acceptable for many computer-related components. See "Materials and equipment".

2. D. Ribbon cables create small walls in the path of airflow and can be replaced with rounded cables to improve airflow in most situations. Review "Internal ventilation".

3. A. Reducing office temperature is something that can help systems as part of a preventive maintenance plan, but it is not a reason to implement the plan. Check out "Preventive Maintenance 101".

4. B, C. Keeping the number of tasks limited keeps the process from becoming unwieldy. Automating tasks removes the need for action on a user's part, which also promotes having the tasks performed. Filing and indexing physical files will not promote having the tasks completed but can be used to report on what has been completed. Peruse "Preventive Maintenance 101".

5. A, C. defrag.exe and chkdsk.exe are both tools that can be used to perform standard maintenance on your hard drives. Take a look at "Software utilities".

6. C. When relative humidity is too low, there is an increased risk of static build-up and electrostatic discharge (ESD). Peek at "Humidity and liquids".

7. B. When devices are running all the time, they can wear out. Look over "Power, UPS, and suppressors".

8. C, D. Media's storage life is greatly influenced by its storage environment, which ideally will be cool, dry, properly ...