IT Essentials 8.0 Chapter 3

A technician is selecting a server that will be used by a cloud provider to provide fault tolerance for large quantities of stored data. What is a major consideration that needs to be taken into account?

• smart card reader

• RAID

• motherboard that supports dual-channeling

• Thunderbolt connector

A data analyst has asked a technician to help protect locally stored data by installing a RAID. What is the minimum number of drives the technician has to install if configuring a RAID level 5?

• 7

• 1

• 3

• 10

How should a technician dispose of an empty inkjet printer cartridge?

• Give it back to the customer.

• Refill it.

• Follow local regulations for disposal.

• Throw it away.

What is indicated by the contrast ratio of a monitor?

• the difference in the intensity of light between the brightest white and darkest black that can be displayed

• the ratio of the horizontal and vertical viewing areas of the monitor

• the total number of pixels that make up the picture

• how often the picture image is refreshed

Which security feature in modern CPUs protects memory areas that contain part of the operating system from malware attacks?

• execute disable bit

• LoJack

• encryption

What makes CRT monitor disposal dangerous for a technician who is handling the disposal?

• potential health-damaging chemicals

• potential breathing hazards

• potential residual high voltage

• potential explosive materials

Which type of interface was originally developed for high-definition televisions and is also popular to use with computers to connect audio and video devices?

• VGA

• DVI

• HDMI

• USB

• FireWire

A user playing a game on a gaming PC with a standard EIDE 5400 RPM hard drive finds the performance unsatisfactory. Which hard drive upgrade would improve performance while providing more reliability and more energy efficiency?

• a 7200 RPM SATA hard drive

• a 7200 RPM EIDE hard drive

• a 10,000 RPM SATA hard drive

• an SSD

A technician has assembled a new computer and must now configure the BIOS. At which point must a key be pressed to start the BIOS setup program?

• after the POST, but before Windows starts to load

• during the POST

• before the computer is powered on

• during the Windows load process

What electrical unit refers to the number of electrons moving through a circuit per second?

(a)