Chapter 1-1
What type of computer, also called a notebook, has a monitor that folds down to cover the keyboard for transport?
A. Server B. Laptop
C. GPS D. Mainframe
B. Laptop
A laptop is a portable computer that folds up for transport, with the monitor covering the keyboard. A server is a specialized computer accessed by multiple other computers. A GPS is a single-user computing device that provides the current geographical location. A mainframe is a large single computer that multiple users access.
A version of Linux packaged with add-ons and utilities for a particular purpose is known as a:
A. Distro B. GUI
C. Version D. Service Pack
A. Distro
Distro is short for distribution. A GUI is a graphical user interface. A version is a release of an OS at a particular point in time, usually numbered, like Windows 10. A Service Pack is an update to a certain version.
Which of these is not part of the data processing sequence?
A. Networking B. Processing
C. Output D. Input
A. Networking
Input, processing, and output are the three steps in the data processing sequence.
In what type of computer is SODIMM memory used?
A. Laptop B. Desktop
C. Server D. Smartphone
A. Laptop
SODIMM is a small-outline DIMM used in a laptop PC. Desktops and servers use regular DIMMs. A smartphone has built-in memory.
You are running virtual machines on a single physical server. The server operating system does not run any other applications and is dedicated to virtualization. What type of hypervisor is this?
A. Type 1 B. Type 2
C. Type 3 D. Type 4
A. Type 1
Type 1 hypervisors run directly on the physical hardware and are dedicated to running virtual machines. Type 2 hypervisors are not dedicated to virtualization; they run within an existing operating system that can do more than run virtual machines. Type 3 and Type 4 are not valid hypervisor types.
What would be an appropriate use for a supercomputer?
A. Playing online games B. Running a high-volume web site
C. Tallying census results D. Managing a large business’s accounting department
C. Tallying census results
Supercomputers are for the most intensive computing applications. They are so expensive that it would be a waste to do any of the other listed activities with one.
A BlackBerry is a type of smartphone known for what distinctive feature that most other modern smartphones lack?
A. Graphical screen B. Internet connectivity
C. Touchscreen D. Hardware keyboard
D. Hardware keyboard
A traditional BlackBerry has a hardware keyboard, unlike most other smartphones. All other choices are features that all smartphones have.
What is another name for a CPU?
A. Microprocessor B. Intel
C. System memory D. Chipset
A. Microprocessor
Microprocessor is another name for the central processing unit (CPU). Intel is a company that makes CPUs. System memory is RAM. The chipset is a controller for the motherboard.
In what two ways are DDR3 DIMMs better than DDR2 DIMMs? (Choose two.)
A. Less expensive B. More reliable
C. Uses less power D. Faster
C. Uses less power D. Faster
DDR3 uses less power and is faster than DDR2. It is not more reliable or less expensive.
Which factor distinguishes IoT devices from standard computing devices such as laptops and smartphones?
A. They must run as virtual machines on a Type hypervisor. B. They are specialized devices.
C. They must run as virtual machines on a Type 2 hypervisor. D. They are kept isolated from the Internet.
B. They are specialized devices.
IoT devices are specialized computing devices used for medical patient monitoring, home thermostat control, or baby monitoring, to name just a few uses. IoT devices can be controlled or monitored over the Internet; they are designed for this connectivity. Other than for software developer testing, IoT devices do not run as virtual machines.
Which of these is a workstation operating system?
A. iOS B. Windows Phone
C. Windows D. Android
C. Windows
Windows is a workstation OS (that is, one designed for desktops and laptops). iOS, Windows Phone, and Android are all mobile operating systems.
What operating system is used on an iPad?
A. macOS B. Windows
C. Android D. iOS
D. iOS
iOS is used on an iPad. macOS is by Apple but used on Mac desktops and laptops. Windows and Android are not Apple operating systems.
Which of these is not a feature of a CPU?
A. Multicore B. 64-bit processing
C. L1 cache D. DDR
D. DDR
DDR is a type of memory. All the others are CPU features.
What manages and controls the speed of a motherboard’s buses?
A. RAM B. CPU
C. Chipset D. L1 cache
C. Chipset
The chipset manages the motherboard. RAM and CPU are items installed on the motherboard. The L1 cache is a memory cache inside the CPU.
How are information and data different?
A. Data is processed information. B. Information is processed data.
C. Data does not need to be backed up. D. Information does not need to be backed up.
B. Information is processed data.
Data is raw; information is processed data. Both data and information should be backed up, and in some cases this is dictated by laws or regulations.
Which of these operating systems cannot run on a desktop PC with an Intel processor?
A. Linux B. iOS
C. Google Chrome OS D. Windows
B. iOS
iOS is an operating system for portable Apple devices such as the iPad and iPhone. All the other operating systems listed here will run on a desktop PC with an Intel processor.
What kind of network is used to connect individual computers in a single physical location?
A. WAN B. LAN
C. Internet D. Remote
B. LAN
A local area network (LAN) connects computers in the same location. A wide area network (WAN) connects computers far away from one another. The Internet and a remote network are both examples of WANs.
Why is passive cooling not usually used for a CPU?
A. Draws too much power B. Not effective enough
C. Moving parts break down D. Uses too much RAM
B. Not effective enough
Passive cooling is not effective enough to cool most CPUs. Passive cooling draws no power, has no moving parts, and uses no RAM.
What are the two functions of a desktop PC’s power supply? (Choose two.)
A. Steps down the voltage B. Increases the voltage
C. Converts AC to DC D. Converts DC to AC
A. Steps down the voltage C. Converts AC to DC
A desktop power supply converts 110 V AC current from the wall to DC current in the range of +3.3 V to +12 V.
You are reconfiguring a cloud virtual machine with additional vCPUs and additional RAM. Which term best describes your actions?
A. Scaling down B. Scaling in
C. Scaling up D. Scaling out
C. Scaling up
Vertical scaling means increasing or decreasing underlying virtual machine compute power. Increasing vCPUs and RAM is called scaling up, whereas decreasing is called scaling down. Scaling out means adding additional virtual machines to handle an IT workload, whereas scaling in means removing virtual machine when the workload lightens.
What kind of OS enables users to interact with it using a pointer and graphics?
A. Command line B. GUI
C. Decentralized D. Centralized
B. GUI
A graphical user interface (GUI) uses a pointer and graphics. A command-line interface uses text. Decentralized and centralized processing have no relationship to whether there are graphics and a pointer.
Listening to music using an online service like Spotify is an example of what?
A. Cloud computing B. Virtualization
C. Streaming media D. Telepresence
C. Streaming media
Streaming media allows you to watch and listen to video and audio clips from online sources without downloading them. Cloud computing involves running applications and accessing storage online. Virtualization runs different operating systems on a host OS. Telepresence creates an immersive remote environment.
What is the main advantage of liquid cooling over air cooling?
A. Less expensive B. Safer
C. More effective D. Uses less power
C. More effective
Liquid cooling is more effective than air cooling. It is more expensive and less safe (because of the risk of leaks) and uses more power.
What is the reason for different color wires on a power supply?
A. The wire color determines the appropriate component for the connector.
B. Each wire color represents a different voltage.
C. Certain color wires deliver AC power, and certain ones deliver DC power.
D. Certain color wires deliver higher-quality power than others.
B. Each wire color represents a different voltage.
Each wire color is a different voltage. All wires deliver DC power of the same quality level.