IT essentials Quiz Review Ch 3

When a dual core CPU with Hyper-Threading features is installed on a motherboard, how many instructions can the CPU simultaneously process?

• 1

• 2

• 3

• 4

Answer explanation

With Hyper-Threading, two pieces of code can be processed simultaneously by a single core

What are two settings that can be modified in the BIOS setup program. (choose two options)

• enabling and disabling devices

• swap file

• drive partition size

• boot order

Answer explanation

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.

Which definition describes the term "overclocking"?

• increasing the speed of the CPU beyond the recommendations of the manufacturer

• replacing slower SDRAM with faster memory

• modifying the motherboard clocking crystal to increase the timing signals

Answer explanation

Increasing the CPU clock speed will make the computer run faster, but also generate more heat and cause overheating issues.

What indicates that the charge on the CMOS battery could be getting low?

• Performance while accessing files on the hard drive is slow.

• A beep error code occurs during POST.

• The computer time and date are incorrect.

• The computer fails to boot.

Answer explanation

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.

Where is the saved BIOS configuration data stored?

• Hard Drive

• CMOS

• RAM

• Cache

Answer explanation

The BIOS configuration data is saved to a special memory chip called a Complementary Metal Oxide Semiconductor (CMOS).

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

• RAID 5

• RAID 9

• RAID 15

Answer explanation

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

• a fast EIDE drive

• a high capacity external hard drive

• liquid cooling

Answer explanation

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.

Which website should a technician consult to find instructions for updating the BIOS on a computer?

• Operating system developer

• case manufactuer

• CPU manufactuer

• motherboard manufactuer

Answer explanation

Go to the motherboard manufacturer site to get the correct software to update the BIOS.

Which specialized computer component would be most important for a workstation built for audio and video editing?

• Liquid CPU cooling system

• high speed wireless adapter

• TV tuner card

• specialized video card

Answer explanation

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 term refers to the technique of increasing the speed of a processor from the specified value of its manufacturer?

• multitasking

• hyperthreading

• throttling

• overclocking

Answer explanation

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.