Question 1

Which of the following protects against electrical power variations?
A) cloud computing
B) surge protector
C) server virtualization
D) electronic leveling

Accepted Answer

A surge protector is designed to protect electrical equipment from power surges, spikes, and variations. Cloud computing, server virtualization, and electronic leveling do not provide protection against electrical power variations.

Question 2

Which of the following is NOT a likely complaint of someone who spends his or her workday using the computer?
A) lower back pain
B) emotional fatigue
C) high blood pressure
D) muscle fatigue

Accepted Answer

Although spending long hours on a computer can lead to physical strain and fatigue, it is unlikely to cause high blood pressure. High blood pressure is usually caused by factors such as genetics, poor diet, lack of exercise, and chronic stress.

Question 3

It is estimated by one publisher that, on average, libraries replace a print book after how many checkouts?
A) 26
B) 49
C) 54
D) 76

Accepted Answer

The answer of It is estimated by one publisher that,...

Question 4

What is the term for the picture/video message service available on smartphones and other mobile devices?
A) CMS
B) MCS
C) MMS
D) SCM

Accepted Answer

MMS stands for Multimedia Messaging Service and refers to the ability to send picture, video or audio messages between mobile devices.

Question 5

Which of the following cameras is a high-end digital camera that has interchangeable lenses and uses a mirror to display on its screen an exact replica of the image to be photographed?
A) MMS
B) convertible
C) point-and-shoot
D) SLR

Accepted Answer

SLR (Single Lens Reflex) cameras are high-end digital cameras that have interchangeable lenses and use a mirror to display an exact replica of the image to be photographed on its screen, making it easier for the photographer to compose and focus the shot. MMS (Multimedia Messaging Service) is a messaging technology, convertible is a type of car, and point-and-shoot cameras do not have interchangeable lenses or use a mirror for display.

Question 6

Which of the following kinds of UPS runs off a battery?
A) offline UPS
B) UPS utility
C) standby UPS
D) online UPS

Accepted Answer

Online UPS runs continuously off a battery, providing complete power protection and conditioning for any type of power outage or fluctuation. The other types of UPS either switch to battery power only when there is a power outage (standby UPS) or when there is a significant fluctuation in power (offline UPS), or they provide temporary backup power only until a backup generator can be started (UPS utility).

Question 7

Which of the following is a special-purpose computer that functions as a component in a larger product?
A) hard-coded computer
B) embedded computer
C) soft computer
D) indexed computer

Accepted Answer

An embedded computer is a special-purpose computer designed to perform a dedicated function within a larger product or system. It is typically integrated into the hardware of the product and operates behind the scenes to control or monitor its functions. Unlike general-purpose computers, embedded computers are optimized for efficiency, size, and cost, rather than raw processing power or flexibility. Examples of embedded computers include those found in cars, appliances, medical equipment, and industrial machinery.

Question 8

Which of the following is not a determinant of the category in which a computer best fits?
A) resolution
B) speed
C) price
D) processing power

Accepted Answer

The answer of Which of the following is not a...

Question 9

Which of the following is the process of initiating contact between two Bluetooth devices and allowing them to communicate with each other?
A) streamlining
B) discovering
C) docking
D) pairing

Accepted Answer

The process of initiating contact between two Bluetooth devices and allowing them to communicate with each other is called pairing.

Question 10

Which of the following are small and have limited hardware because they are components in larger products?
A) telematics
B) embedded computers
C) handhelds
D) smart watches

Accepted Answer

Embedded computers are specifically designed to function as components in larger products, and therefore have limited hardware and are relatively small. Telematics (the integration of telecommunications and informatics), handhelds, and smart watches can also be small and have limited hardware, but they are not necessarily designed solely as components in larger products.

Question 11

Which of the following occurs when the electrical supply or voltage drops, often defined as more than five percent below the normal volts?
A) undervoltage
B) power surge
C) overvoltage
D) online surge

Accepted Answer

This is defined as an undervoltage condition which can result in equipment damage or failure.

Question 12

What is the term for the technology that allows users to view message details such as the length of calls, for example?
A) integrated vmail
B) voice e-mail
C) video mail
D) visual voice mail

Accepted Answer

Visual voicemail is the technology that allows users to view message details such as the length of calls, unlike traditional voicemail where users have to listen to messages in a specific order. Integrated vmail, voice e-mail, and video mail are not related to this technology.

Question 13

What is the term for the smallest element in an electronic image?
A) icon
B) optic
C) state
D) pixel

Accepted Answer

The smallest element in an electronic image is called a pixel. Pixels are tiny dots that make up an image and each pixel holds information about the color and brightness of that specific point in the image.

Question 14

Which of the following is an affordable and lightweight digital camera with lenses built into it and a screen that displays an approximation of the image to be photographed?
A) point-and-shoot
B) SLR
C) MMS
D) convertible

Accepted Answer

Point-and-shoot cameras are generally affordable and lightweight, with lenses built into them and a screen that displays an approximation of the image to be photographed. They are easy to use and typically have automatic settings, making them a good choice for beginner photographers. SLRs are larger and more expensive, with interchangeable lenses, and are better suited for more advanced photographers. MMS and convertible are not types of cameras.

Question 15

Which of the following is an external device that provides connections to peripheral devices through ports built into the device?
A) port replicator
B) universal serial bus port
C) wireless port adapter
D) docking station

Accepted Answer

The answer of Which of the following is an external...

Question 16

Which of the following is held with both hands and controls the movement and actions of players or objects in video games or computer games?
A) joystick
B) dance pad
C) gamepad
D) balance board

Accepted Answer

A gamepad is the most common device used to control movement and actions in video games or computer games. It is held with both hands and typically has a directional pad, buttons, and analog sticks for precise control. Joysticks, dance pads, and balance boards may also be used for certain types of games, but they are not as versatile and widely used as gamepads.

Question 17

What is another name for a standby UPS?
A) online UPS
B) surge protector
C) offline UPS
D) virtual server

Accepted Answer

Standby UPS is another name for Offline UPS.

Question 18

Which of the following are small speakers that rest inside each ear canal?
A) earphones
B) headphones
C) headsets
D) earbuds

Accepted Answer

Earbuds are small speakers that rest inside each ear canal, making them the best choice for this question. Earphones, headphones, and headsets can refer to various types of audio devices, but they do not specifically describe speakers that fit inside the ear canal like earbuds.

Question 19

Which of the following is a device that plugs in a USB port on the computer or mobile device and contains multiple USB ports?
A) USB matrix
B) USB receiver
C) USB hub
D) USB replicator

Accepted Answer

A USB hub is a device that plugs into a USB port and provides additional USB ports for connecting multiple devices. A USB matrix, USB receiver, and USB replicator are not commonly used terms for this type of device.

Question 20

How many peripheral devices can you connect with a USB port?
A) up to 32
B) up to 45
C) up to 57
D) up to 127

Accepted Answer

A standard USB controller can support up to 127 devices through daisy-chaining, although this is not practical due to bandwidth limitations.

Quiz 3: Computers and Mobile Devices: Evaluating the Possibilities

Which of the following protects against electrical power variations?

Which of the following is NOT a likely complaint of someone who spends his or her workday using the computer?

It is estimated by one publisher that, on average, libraries replace a print book after how many checkouts?

What is the term for the picture/video message service available on smartphones and other mobile devices?

Which of the following cameras is a high-end digital camera that has interchangeable lenses and uses a mirror to display on its screen an exact replica of the image to be photographed?

Which of the following kinds of UPS runs off a battery?

Which of the following is a special-purpose computer that functions as a component in a larger product?

Which of the following is not a determinant of the category in which a computer best fits?

Which of the following is the process of initiating contact between two Bluetooth devices and allowing them to communicate with each other?

Which of the following are small and have limited hardware because they are components in larger products?

Which of the following occurs when the electrical supply or voltage drops, often defined as more than five percent below the normal volts?

What is the term for the technology that allows users to view message details such as the length of calls, for example?

What is the term for the smallest element in an electronic image?

Which of the following is an affordable and lightweight digital camera with lenses built into it and a screen that displays an approximation of the image to be photographed?

Which of the following is an external device that provides connections to peripheral devices through ports built into the device?

Which of the following is held with both hands and controls the movement and actions of players or objects in video games or computer games?

What is another name for a standby UPS?

Which of the following are small speakers that rest inside each ear canal?

Which of the following is a device that plugs in a USB port on the computer or mobile device and contains multiple USB ports?

How many peripheral devices can you connect with a USB port?