Module 03
- How many instructions are supercomputers capable of processing in a single second?
- thousands
- millions
- billions
- trillions
- A supercomputer is the fastest, most powerful computer–and the most expensive.
Answer: True - Your school is in a safe neighborhood, but there have been a few thefts at ATMs. You work part-time in your school’s campus security office and have been asked to
prepare tips for students about ATM safety.
Which of the following will you NOT recommend?
- Cover the keypad or screen with one hand as you enter the PIN.
- Choose an ATM near the entrance to a building.
- Count the cash immediately to ensure you receive the right amount.
- Do not write your PIN on the back of the card.
- Sometimes called a system board, a(n) is the main circuit board of a personal computer.
Answer: motherboard - Which of the following is NOT true about PCs?
- Acer, Dell, and HP are examples of companies that sell computers that use the Mac operating system.
- A PC is intended to be used by one person at a time.
- PC sometimes is used to describe a computer that runs a Windows operating system.
- PC stands for personal computer.
- A(n) is a handheld vertical lever, mounted to a
base, that you move to control the actions in a game.
- drive shaft
- gamepad
- joystick
- control wand
- When purchasing a digital camera, you do not need to worry about the memory card because all cameras use the same memory cards.
Answer: False - Which of the following are two main components on the motherboard?
- processor and memory
- memory and storage
- compiler and processor
- interpreter and compiler
- A docking station has less functionality than a port replicator.
Answer: False - CTS is inflammation of the nerve that connects the forearm to the palm of your hand.
Answer: True - computing refers to an environment that provides resources and services accessed via the Internet.
- Virtual
- Intranet
- Cloud
- Global
- A(n)
tablet has a screen in its lid and a keyboard in its base, with the lid and base connected by a swivel-type hinge.
- ultrathin
- convertible
- detachable
- slate
- Another term for overvoltage is a(n) surge.
Answer: power - When purchasing a mobile computer, you should determine the form factor that meets your needs. What is a form factor?
- The size of the screen.
- The type of device, such as a tablet or ultrathin laptop.
- The speed at which data is processed.
- The ergonomic aspects of the computer.
- Your school is in a safe neighborhood, but there have been a few thefts at ATMs. You work part-time in your school’s campus security office and have been asked to prepare tips for students about ATM safety.
Thieves can capture a credit card number by placing a(n) on an ATM.
- swiper
- skimmer
- scanner
- sweeper
- Once example of the trend called the Internet of Things is if your refrigerator sends your phone a message that you need milk.
Answer: True - Many handheld computers are industry-specific, such as for parcel delivery people.
Answer: True - Bluetooth devices have to be within about 33 feet of each other.
Answer: True - If you are purchasing a new
desktop, chances are it will include the latest version of your preferred operating system.
Answer: True - A frame that houses the system unit on a desktop is called a(n) .
- sleeve
- tower
- briefcase
- canister
- is the process of initiating contact between two Bluetooth devices.
- Coupling
- Pairing
- Initiating
- Tethering
- Fitness games often
communicate with a(n) board, which is shaped like a weight scale and contains sensors.
- motion
- step
- balance
- activity
- A port is the point at which a peripheral device attaches to or communicates with a computer or mobile device.
Answer: True - Your collection of stored digital media is called a media .
Answer: library - A smartphone is an
Internet-capable phone that usually also includes a calendar, an address book, a calculator, a notepad, games, browser, and numerous other apps.
Answer: True - A self-service is a freestanding terminal that usually has a touch screen for user interaction. Examples include financial, photo, and ticket.
Answer: kiosk - Some smartphones use text, where you press one key on the keyboard or
keypad for each letter in a word, and software on the phone suggests words you may want.
- predictive
- interpretive
- suggestive
- presumptive
- You use a POS terminal at work. Which of the following is the type of business at which you likely work?
- research laboratory
- retail
- financial
- library
- Smartphones and other mobile devices often can function as a portable media player.
Answer: True - A mail server stores and manages email lists.
Answer: False - A(n) computer is a PC designed to be in a stationary location.
Answer: desktop - Which of the following describes juice jacking?
- When the activities of one user on a Wi-Fi network causes other users’ Internet speed to be affected.
- A process to remove moisture and liquid from a device after it has inadvertently been submerged in water.
- When an overvoltage causes a temporary interruption to a device’s power supply.
- When a hacker steals data from or transfers malware to a device via a USB cable at a charging station.
- Information produced and stored by a computer is called .
Answer: output - A brownout is a complete power failure.
Answer: False - Some tablets include
a(n) , which looks like a small ink pen, that you can use to enter data, make selections, or draw on a touch screen.
Answer: stylus - Which of the following best describes an ultrabook?
- An e-book reader that has capabilities similar to a tablet.
- A supercomputer in laptop format.
- A laptop with a large, detachable screen.
- A thin laptop that uses a low-power processor.
- Which of the following
server types is in the form of a single circuit board?
- dedicated
- blade
- tower
- rack
- Older USB devices run faster in a new USB port.
Answer: False - An ATM asks you to enter a numeric password, called a PIN, which stands for Private Identity Name.
Answer: False - What part of the body does CVS impact?
- wrists
- ears
- arms
- eyes
- Which manufacturer uses the term AirPods to refer to headphones that fit in your ear and connect wirelessly to devices?
- Apple
- Nokia
- Samsung
- Blackberry
- Identify the letter of the choice that best matches the phrase or definition.
- The smallest element in an electronic image
Answer: a. pixel - Joins a cable to a port
Answer: o. connector - The point at which
a peripheral device attaches to or communicates with a computer or mobile device
Answer: n. port - Can connect up to 127 different peripheral devices together with a single connector
Answer: b. USB port - An external device that provides connections to peripheral devices through ports built into the device
Answer: c. port replicator - Technology that uses short-range radio
signals to transmit data between two specifically enabled devices
Answer: m. Bluetooth - Unsolicited email messages
Answer: l. spam - The electronic component that interprets and carries out the basic instructions that operate a computer
Answer: d. CPU - The case that contains and protects the motherboard, hard disk drive, memory, and other electronic components of the computer
from damage
Answer: e. system unit - Another name for a notebook computer
Answer: k. laptop - A device that combines the features of a smartphone with a tablet
Answer: j. phablet - The practice of sharing or pooling computing resources, such as servers and storage devices
Answer: f. virtualization - A computer, usually with limited
processing power, that enables users to send data to and/or receive information from a server
Answer: i. terminal - Another name for text message service
Answer: g. SMS - The number of horizontal and vertical pixels in a display device
Answer: h. resolution
- The smallest element in an electronic image
- Security experts recommend keeping the microphone port open when you are not using it to protect from
spying.
Answer: False - Server uses software to enable a physical server to emulate the hardware and computing capabilities of one or more servers.
Answer: virtualization - Which of the following would not fit on a desk or your hand?
- supercomputer
- mobile computer
- PC
- game console
- For which purpose might you use a CSC?
- To receive a notification from a website.
- To send a message to your mobile service provider.
- To text a friend a link to a website.
- To save content from a text to your phone.
- A point-and-shoot camera is a high-end digital camera that has interchangeable lenses.
Answer: False - Cloud computing uses server virtualization.
Answer: True - Instead of the term, port, the term, , sometimes is
used to identify audio and video ports.
Answer: jack - A(n) device is a small, mobile computing device designed to be worn. Examples include activity trackers and smartwatches.
Answer: wearable - Which of the following is recommended to avoid malware infections?
- Malware authors typically avoid social media.
- Flash memory storage from a friend should be safe to use without scanning.
- Some software touted as offering malware protection actually installs more malware.
- If a pop-up window warns you that your computer is infected with a virus, follow its instructions.
- In M2M communication, such as with the Internet of Things trend, the M stands for .
- media
- mobile
- machine
- manufacturer
- A mainframe is a network of several servers together in a single location.
Answer: False - A(n) computer is a small computer usually the same size as a USB flash drive.
Answer: stick - A keyboard, mouse, and microphone all are examples of peripheral devices.
Answer: True - A(n) is a thin, lighter-weight mobile computer that has a touch screen.
- tablet
- PC
- notebook
- desktop
- Your friend Marvin works weekends
in an electronics store selling computers. You are in the market for a new desktop for your home.
Which of the following does Marvin NOT recommend you do?
- Know the system requirements of the operating system you want to use.
- Avoid purchasing the least powerful desktop available.
- Consider a touch screen monitor.
- Purchase software separately rather than having it bundled with the computer.
- With voice mail, users
can view message details, and in some cases read message contents without listening to them.
- text
- virtual
- interpreted
- visual
- A(n) is a computer dedicated to providing one or more services to other computers on a network.
Answer: server - Which of the following is NOT recommended to prevent CTS?
- Place the mouse at least six inches from the edge of the desk.
- Place your wrists on the edge of the desk.
- Minimize the number of times you switch between the mouse and keyboard.
- Avoid using the heel of your hand as a pivot point while typing or using the mouse.
- The actual photographed resolution is known as the resolution.
- original
- native
- optical
- raw
- Power users may work with a high-end desktop, sometimes called a(n) , designed to handle intense calculations and
sophisticated graphics.
- magnapower
- ultrabook
- workstation
- supercomputer
- Examples of a(n) computer for automobiles include antilock brakes, airbag control units, and cruise control.
Answer: embedded - Most handheld game devices can communicate wirelessly with other similar devices for multiplayer gaming.
Answer: True - When purchasing a mobile computer,
which of the following is NOT recommended?
- Upgrading a mobile computer’s memory and internal storage may be less expensive at the time of initial purchase.
- Consider purchasing a second battery if you plan to use your mobile device for a long time without access to an outlet.
- The availability of ports is not important because you can always add ports.
- If you have large fingers, you should not purchase a computer with a small, condensed keyboard.
- Data
that a computer accepts and processes is called .
- bytes
- digital facts
- input
- information
- A(n) client is a terminal that looks like a desktop but has limited capabilities and components.
Answer: thin - Your friend Marvin works weekends in an electronics store selling computers. You are in the market for a new desktop for your home.
Why does Marvin recommend that you consider an all-in-one?
- They usually come with a better warranty.
- Although they take up more space, they are more powerful.
- They typically are less susceptible to hacking and malware.
- It may be less expensive than purchasing a tower and monitor separately.
- A(n) notification is a message that initiates from the sending location without a request from the receiver. With a(n) notification, the receiver requests information from
the sending location.
- push, pull
- input, output
- receive, request
- opt-in, opt-out
- Most computers and electronic devices are analog, which uses only two discrete states: on and off.
Answer: False - blindness occurs when a person’s attention is diverted while performing a natural activity, such as walking.
- Inattentional
- Accidental
- Occupational
- Virtual
- Malware creators are targeting smartphones, particularly those using the Android operating system.
Answer: True - A(n) digital camera can communicate wirelessly with other devices and can include apps.
Answer: smart - Which of the following server types is housed in a slot on a metal frame?
- dedicated
- rack
- tower
- blade
- A stick computer has a large
amount of storage space.
Answer: False - Reliance on electronic stability control may cause you to drive slower than conditions allow.
Answer: False - Some smartphones support a(n) keyboard app, on which users enter words by tracing a path on an on-screen keyboard.
- virtual
- touch
- finger
- swipe
- Lighting, HDMI, and Thunderbolt are all types of .
- gaming consoles
- networks
- ports
- ISP
- Which of the following is NOT true about e-book readers?
- Most e-book readers can store thousands of books.
- Batteries usually have a long life.
- E-book readers are available with an electronic paper black-and-white screen or a color screen.
- E-book readers usually are larger than both smartphones and tablets.
- Which of the following is
NOT true about servers?
- In many cases, a server accesses data, information, and programs on another server.
- Services provided by servers include storing content and controlling access to network resources.
- Form factors for servers include rack, blade, and tower.
- Dedicated servers typically do not require a fast processor, and use little memory.
Are malware creators targeting smartphones particularly those using the Android operating system?
Malware creators are targeting smartphones, particularly those using the Android operating system. Security experts recommend keeping the microphone port open when you are not using it to protect it from spying. Many handheld computers are industry-specific, such as for parcel delivery people.
Do malware authors focus on social media?
Malware authors often focus on social media, with the goal of stealing personal information. The disadvantages of a virtual server are that it is difficult to manage and takes a long time to create and configure. A mainframe is a small terminal that looks like a desktop, but has limited capabilities and components.
For which purpose might you use CSC?
A common short code (CSC) is a short telephone number, usually consisting of five digits, that is used to address SMS and MMS messages from a cellular telephone.
How many instructions are supercomputers capable of processing in a second?
The performance of a supercomputer is commonly measured in floating-point operations per second (FLOPS) instead of million instructions per second (MIPS). Since 2017, there have existed supercomputers which can perform over 1017 FLOPS (a hundred quadrillion FLOPS, 100 petaFLOPS or 100 PFLOPS).