A+ IT Essentials Quiz 3 Flashcards
What indicates that the charge on the CMOS battery could be getting low?
The computer time and date are incorrect.
Answers Explanation & Hints:
The computer time and date are held in CMOS. This requires power from a small battery. If the battery is getting low, the system time and date may become incorrect.
Which website should a technician consult to find instructions for updating the BIOS on a computer?
motherboard manufacturer
Answers Explanation & Hints:
Go to the motherboard manufacturer site to get the correct software to update the BIOS.
A network administrator is setting up a web server for a small advertising office and is concerned with data availability. The administrator wishes to implement disk fault tolerance using the minimum number of disks required. Which RAID level should the administrator choose?
RAID 1
Answers Explanation & Hints:
Both RAID 0 and RAID 1 require at least 2 disks. However, RAID 0 does not provide fault tolerance. The minimum numbers of disks for RAID 5 and RAID 6 are 3 and 4 respectively.
Which hardware upgrade would allow the processor in a gaming PC to provide the optimal gaming performance?
large amounts of fast RAM
Answers Explanation & Hints:
Faster RAM will help the processor to keep all of the data in sync because the data that it needs to calculate can be retrieved when it is needed. The more RAM that the computer has, the less often the computer needs to read from slower storage such as hard drives or SSDs.
When a dual core CPU with Hyper-Threading features is installed on a motherboard, how many instructions can the CPU simultaneously process?
4
Answers Explanation & Hints:
With Hyper-Threading, two pieces of code can be processed simultaneously by a single core.
Which definition describes the term “overclocking”?
increasing the speed of the CPU beyond the recommendations of the manufacturer
Answers Explanation & Hints:
Increasing the CPU clock speed will make the computer run faster, but also generate more heat and cause overheating issues.
What is a characteristic of thin clients?
They require a network connection to access storage and processor resources.
Answers Explanation & Hints:
A thin client device is typically a type of low-end computer that does not perform any processing or data storage locally. A thin client relies on a network connection to access any resources required to perform computing tasks and operate software.
A technician accidentally spills a cleaning solution on the floor of the workshop. Where would the technician find instructions on how to properly clean up and dispose of the product?
the safety data sheet
Answers Explanation & Hints:
The Safety Data Sheet (SSD) summarizes information about materials, including hazardous ingredients, fire hazards, and first-aid requirements.
Where is the saved BIOS configuration data stored?
CMOS
Answers Explanation & Hints:
The BIOS configuration data is saved to a special memory chip called a Complementary Metal Oxide Semiconductor (CMOS).
Which specialized computer component would be most important for a workstation built for audio and video editing?
a specialized video card
Answers Explanation & Hints:
Computers designed for audio and video editing will need specialized inputs and outputs for recording and playback equipment. This requires an audio and video card that can handle the variety of inputs and outputs needed.
Which device can protect computer equipment from brownouts by providing a consistent quality of electrical power?
UPS
What are two settings that can be modified in the BIOS setup program.
enabling and disabling devices
boot order
Answers Explanation & Hints:
The BIOS setup program is used to change settings if memory modules, storage devices, and adaptor cards are added. Most manufacturers provide the ability to modify boot device options, security and power settings, and adjustments for voltage and clock settings.
What unit is used to measure the amount of resistance to the flow of current in a circuit?
ohms
Answers Explanation & Hints:
The resistance of a circuit to the flow of current is measured in ohms (O). Amps (A) measure the amount of electrons moving through the circuit. Watts (W) measure the work required to move electrons through the circuit. Volts (V) measure the work required to move a charge from one location to another.
Which term refers to the technique of increasing the speed of a processor from the specified value of its manufacturer?
overclocking
Answers Explanation & Hints:
Overclocking is a technique that is used to make a processor work at a faster speed than its original specification. Overclocking is not a reliable way to improve computer performance and can result in damage to the CPU.
