Technology - Chapters 2 & 3

Which of the following transfer rates is the FASTEST?

1,480 Mbps

Which of the following voltages from an ESD discharge would be the minimum to short a computer's hardware components?

100 volts

Which of the following is the correct binary representation of the number 22?

10110

How many possible values would an 8-bit audio sample have?

256

A consumer wants to add a hard drive to their computer to store video from their camera. Which of the following is the storage capacity of a modern hard disk drive (HDD) purchased from a computer store?

3 terabytes

How many bits are in a single byte?

8

Which of the following is the term for a device (usually external to a computer) that is plugged into a computer's communication port or connected wirelessly?

A peripheral

Which kind of file would be hurt most by a lossy compression algorithm?

A text document

Which CPU type would MOST LIKELY be found in a smartphone?

ARM

Match each feature to whether it influences audio or video quality.

Audio: Sampling Rate and Bit Depth. Video: Resolution Color Depth and Frame Rate.

Which of the following are optical storage devices? (Select three.)

CD, DVD, BD

Which hardware component processes data?

CPU

Which of the following computer components is the MOST important part of any modern computer?

CPU

A computer has power, but there are no beeps and the computer does not boot. Which of the following would be the MOST LIKELY cause?

CPU failure

Which of the following stores data using microscopic light and dark spots?

Compact Disc

Jeff has been asked to replace a monitor on a workstation. Which of the following device interfaces could he use to connect the new monitor?

DVI

Given the numerical value 1010101.11, which of the following number systems is MOST likely represented?

Decimal

Abby wants a high-end computer system for her home office that can be upgraded. Which of the following should she choose?

Desktop

Tina has accepted a position as a graphic designer. She wants a powerful device that she can connect multiple large screens to. Which device would be the BEST option for her?

Desktop Computer

Which of the following devices would be the BEST option for a gamer?

Desktop Computer

Which of the following devices would be easiest to repair?

Desktop computer

Marcus was assigned to troubleshoot a problem with a customer not being able to access a cloud application. Which of the following is the LAST step in the troubleshooting methodology that should be completed?

Document findings/lessons learned, actions, and outcomes

You have just connected a new USB device to your Windows system. You used the installation disc that came with the device to install the drivers needed to support the device. After the installation, the system frequently crashes when you try to access the new device. Which of the following steps would MOST likely resolve this issue?

Download and install the latest driver from the manufacturer's website.

The troubleshooting methodology starts by identifying the problem. The first step in identifying the problem is to gather information. Which of the following is the NEXT step?

Duplicate the problem, if possible

While troubleshooting a problem with a computer, a technician has tested and confirmed a theory on how to fix the problem. Which of the following is the NEXT step the technician should perform?

Establish a plan of action to solve the problem and identify potential effects

Anna, a technician, is helping a customer troubleshoot an issue where a server will intermittently become inaccessible to employees. Anna has completed researching the knowledge bases available. What should Anna do NEXT as part of standard troubleshooting methodology?

Establish a theory of probable cause

Which single digit has the highest value in the hexadecimal number system?

F

Which of the following uses persistent memory chips to store data?

Flash Drive

If a folder exists on an NTFS partition, which permission is needed by a user who needs to set security permissions on the folder?

Full Control

Which of the following should be done before working on hardware in a computer system?

Ground yourself using an ESD wrist strap

Which of the following has the ability to store user data even if the power to the computer is off?

Hard Drive

You need a storage device that has very large storage capacity, is fast, and is relatively inexpensive. Which storage device will best suit your needs?

Hard disk

Which of the following would be the MOST LIKELY cause for a computer to perform sluggishly?

Hard drive

Put the following events from computer history in the order they happened:

Herman Hollerith develops electronic tabulating machine (1890) International Business Machines, or IBM, is formed (1911) Scientists at Bell Laboratories invent the transistor (1947) Jack Kilby invents the microchip (1959) The Apple II is released for home consumers (1977) The World Wide Web becomes available to the public (1994) Apple releases the iPhone (2007)

Which of the following notational systems is MOST likely used to represent a MAC address?

Hexadecimal

Which of the following makes videos appear smoother and more fluid?

Higher frame rate

Becca is working on a program that will store data. The program will need quick access to data and data persistence is not important. Where should the data be stored?

In memory

Which of the following is not an advantage of SSDs over HDDs?

Inexpensive

Which of the following lists the basic computing and processing steps in order?

Input, processing, output, and storage

Which of the following companies is a manufacturer of CPUs?

Intel

Which of the following problems would be the MOST difficult to troubleshoot?

Intermittent problem

Abby needs a device that she can take to a client's location and show presentations from. Which of the following devices would be the BEST option for her?

Laptop

Which of the following devices make use of a battery as its main power source? (Select two.)

Laptop and Smartphone

You are trying to connect a new USB device to your computer. You install the driver and then connect the device to an open USB port. The device does not work. Which of the following troubleshooting steps is the BEST to try first?

Make sure the USB device is plugged in properly.

An employee submitted a support ticket stating that her computer will not turn on. Which of the following troubleshooting steps should you take first? (Select two.)

Make sure the power cord is plugged into the wall. Make sure the surge protector is turned on.

Which of the following is data temporarily stored on?

Memory Chips

Which invention made it possible to have an entire computer on a single circuit board?

Microchip

Which of the following is an example of computer hardware?

Microchip

Where are values the computer is directly working with at a particular moment in time stored?

On the CPU register

Which of the following divides a single physical disk into multiple logical drives called volumes?

Partitioning

Which of the following is a top cause of motherboard failure?

Physical Damage

You are troubleshooting a malfunctioning notebook computer. Nothing appears on the LED display when the system is powered on. Which of the following is the BEST step to try first?

Plug in an external monitor

Which of the following components converts AC to DC?

Power Supply

A user has entered a search string into an application and clicked on the search icon. Which of the following is the NEXT step in the computing process?

Processing

Which of the following components stores values in short-term memory?

RAM

Which of the following is NOT a long-term storage device?

RAM

A typical computer monitor is which type of display?

RGB

Which type of digital picture is made by storing individual pixel values?

Raster

Which of the following is often the hardest part of troubleshooting?

Reproducing the Problem

Which of the following is a lossless compression algorithm?

Run-length encoding

Digital sound recordings capture sound waves and divide them into distinct segments. Each segment is assigned a value. What is that value called?

Sample height

Which of the following devices generally include a variety of integrated hardware such as a camera? (Select two.)

Smartphone and Laptop

Which of the following provides a computer system with the ability to retrieve and manipulate data at a future time?

Storage

Which of the following BEST describes what a kilobyte is a measurement of?

Storage Space

Which of the following played vital roles in the advancement of national defense, science, and social change?

Supercomputers

Which of the following is primarily operated by a touchscreen?

Tablet

What are pixels that are the exact same between multiple frames called?

Temporal redundancy

Which of the following is a disadvantage of notebook systems?

They are more expensive

Which of the following is a type of input device?

Touchscreen

Which invention allowed computers to become smaller in size?

Transitors

Which type of connector is commonly used for keyboards and mice?

USB

Which connector on the back of a computer is used to attach a mouse to a modern PC system?

USB A

Which of the following encoding schemes would MOST likely be used to represent an emoji?

Unicode

Which type of digital picture can be scaled to any size without losing quality?

Vector

A customer has brought a computer in to be repaired. He said he thinks that the sound card has stopped working because no audio is produced when music, video, or DVDs are played. Which troubleshooting step should you take first? (Select two.)

Verify that the volume isn't muted. Verify that speakers are plugged into the correct jack and are powered on.

Which of the following was the most widely used personal computer application until the mid-90s?

Word processing

Arrange the following from smallest to largest.

kilobyte, megabyte, gigabyte, terabyte