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WorksheetsComputer Systems Comprehensive Exam
Total questions: 100
Worksheet time: 1hrs 8mins
A computer is a programmable machine that converts raw...
Data into useful information
Information into data
Electricity into sound
Software into hardware
Give an example of convergence. (Fill in the blank)
(a)
What kind of computers are found in automobiles, ATMs and appliances?
Embedded
Supercomputers
Mainframes
Wearable
In which step of the information processing cycle is data manipulated, calculated or organized to create useful information?
Processing
Input
Output
Storage
What is the binary code that can represent most currently used language characters and is the standard used on the Internet?
Unicode
ASCII
Morse Code
BCD
The ________ was a mechanical computer designed, but not built, in the early nineteenth century by mathematician Charles Babbage.
Analytical Engine
Difference Engine
Turing Machine
ENIAC
The __________ is a measure of a computer's ability to display intelligent behavior.
Turing test
Moore's law
Von Neumann architecture
Boolean algebra
_______ is the branch of science concerned with making computers behave like humans.
Artificial intelligence
Quantum mechanics
Genetics
Thermodynamics
A(n) _______ is a tiny electrical switch that made second-generation computers faster and more reliable than their predecessors.
Transistor
Vacuum tube
Capacitor
Resistor
A _______ is a complex, integrated circuit.
Microprocessor
Transistor
Resistor
Capacitor
What are desktop computers attached to a network in a business setting called?
Workstations
Servers
Laptops
Tablets
What type of portable computer is thin and light, and has high-end processing and video capabilities?
Subnotebook
Netbook
Tablet
Desktop
__________ computers are built by Apple and run the OS X operating system.
Mac
Windows
Linux
Chromebook
The GPS uses __________ to determine the location, time, and velocity of an object.
a mathematical principle called triangulation
a chemical reaction
magnetic fields
sound waves
The ability to run some older programs on newer hardware is called __________.
Backward compatibility
Forward compatibility
Cross-platform support
Virtualization
__________ are computers that provide services, such as Internet access, email, or file and print services, to client systems.
Servers
Desktops
Laptops
Tablets
__________ can perform millions of transactions in a day.
Mainframe computers
Personal computers
Smartphones
Tablets
__________ share(s) the processing of a task using a group of computers in one location.
Grid computing
Cloud computing
Edge computing
Quantum computing
Very expensive (a) are used to perform complex mathematical calculations, such as those used in weather forecasting and medical research.
__________ design creates a work environment designed to reduce illnesses and musculoskeletal disorders.
Ergonomic
Aesthetic
Structural
Mechanical
The ________ is part of the processor that manages the movement of data through the CPU.
Control unit
Arithmetic unit
Memory module
Input device
The ________ is the measure of instruction cycles per second.
Clock speed
Bus width
Cache size
Instruction set
Which type of port enables peer-to-peer communication between devices such as video cameras?
FireWire
USB
HDMI
Ethernet
Which type of memory is a volatile form of memory that holds the operating systems, programs, and data the computer is currently using?
RAM
ROM
Cache
Hard Disk
Data is stored on ________ using a laser to either melt the disc material or change the color of embedded dye.
Optical discs
Magnetic tapes
Solid state drives
Hard disk drives
Pointing devices, such as the mouse and ________, work by moving a pointer on the screen.
Touchpad
Monitor
Keyboard
Speaker
Which feature results in sharper images?
Image Stabilization
Digital Zoom
Low Battery Mode
Monochrome Filter
________ enables devices to share data with each other by touching them together or bringing them within a few centimeters of each other.
Near field communication
Bluetooth
Wi-Fi
Infrared
What type of monitor is composed of extremely thin panels of organic molecules sandwiched between two electrodes?
OLED
LCD
CRT
Plasma
What is the standard video port found on video cards?
DVI
HDMI
VGA
DisplayPort
What type of printer is the most common personal printer?
Inkjet
Dot matrix
Thermal
Laser
What type of printer produces the highest quality photo prints?
Dye-sublimination
Laser
Dot matrix
Thermal inkjet
What type of printer produces the sharpest text at a much lower cost per page?
Laser
Inkjet
Dot matrix
Thermal
What type of printer creates a model from an image by building layers of material such as paper, polymers, resin, or metal?
Laser printer
3D printer
Inkjet printer
Dot matrix printer
________ are used to connect a computer to a telephone line for dial-up Internet access.
Modems
Routers
Switches
Printers
________ represent audio or video data by a series of 0s and 1s.
Digital devices
Analog devices
Mechanical devices
Optical devices
On ________, data is stored by using a laser to melt the material or to change the color of an embedded dye.
Optical discs
Magnetic tapes
Hard drives
Flash drives
________ is a non-mechanical form of storage, which stores data on a chip.
Solid-state storage
Magnetic tape
Optical disc
Hard disk drive
________ are small, portable, solid-state drives.
Flash drives
Hard disks
CD-ROMs
Magnetic tapes
________ are the primary mass storage devices in a computer system.
Hard drives
RAM modules
Monitors
Keyboards
Which is a function of an operating system?
Managing hardware resources
Designing web pages
Writing application software
Printing documents
________ is the ability to do more than one task at a time.
Multitasking
Prioritizing
Delegating
Scheduling
What acts as a translator, enhancing the capabilities of the operating system by enabling it to communicate with hardware?
Device driver
Application software
Firmware
User interface
A limitation of Mac OS X is that it ________.
only runs on Mac computers
can run on any device
is open source software
is not compatible with any applications
Which operating system is a multiuser OS developed in 1969 that is used on servers and specialized workstations?
Windows
Linux
UNIX
macOS
Which mobile operating system is a mobile Linux operating system found on many smartphones and tablets?
Android
iOS
Windows Phone
BlackBerry OS
Which mobile OS is a scaled-down version of OS X?
Android
iOS
Windows Phone
BlackBerry OS
Which operating system is not an NOS?
Windows Server
Linux
MS-DOS
Novell NetWare
In a hierarchy, a folder within a folder is called a _______.
subfolder
main folder
root folder
parent folder
The tool used to find and organize files on a Mac is:
Finder
Spotlight
Safari
Terminal
Which of the following contains an illegal character and, therefore, isn't a legal file name?
file_name.txt
document.docx
report?.pdf
image.jpeg
The file extension that indicates a Word document is:
.docx
.xlsx
.pptx
Which file extension indicates a video file?
.mp4
.jpg
.docx
.mp3
Which of the following file properties can be edited?
File name
File size
Date created
File type
What type of file compression removes extra information from a file?
Lossless compression
Lossy compression
Encrypted compression
Hybrid compression
Which image file type uses lossy compression?
PNG
JPEG
BMP
TIFF
Which video file type uses compression and is used on websites for viewing?
MP4
AVI
MOV
WMV
Which tool can be used to search for both files and applications on a Mac?
Spotlight
Finder
Terminal
Launchpad
An advantage to using the cloud to store your files from your mobile device is:
files can easily be shared with others
files are stored locally on the device
files are automatically backed up to the cloud
files can only be accessed from the device
Which cloud storage service is included with your Microsoft account?
Google Drive
Dropbox
OneDrive
iCloud
Computers in a peer-to-peer network belong to a _________
Workgroup
Domain
Cluster
Server group
Which resources are not shared by default in a homegroup?
(a)
A _________ is a multiuser computer system that runs a network operating system (NOS).
Server
Printer
Router
Monitor
In which topology is every node on the network attached to a central device?
Star
Ring
Bus
Mesh
Which type of network spans multiple locations and connects multiple networks?
LAN
WAN
MAN
PAN
The device needed to connect two or more networks together is called a(n) _________
Router
Switch
Hub
Repeater
A(n) _________ is an encrypted private network that allows remote users to access a LAN securely.
Virtual private network (VPN)
Wide area network (WAN)
Local area network (LAN)
Metropolitan area network (MAN)
A(n) _________ blocks unauthorized access to a network.
Firewall
Router
Switch
Modem
Which type of network consists of a group of clients and servers under the control of one central security database?
domain
workgroup
peer-to-peer
mesh
Which protocol is responsible for addressing and routing packets to their destination?
IP
HTTP
FTP
SMTP
________ uses email messages that appear to be from trusted websites to trick you into revealing personal information.
Phishing
Spamming
Spoofing
Hacking
A scheme perpetrated over the Internet or by email that tricks a victim into voluntarily and knowingly giving money or property to a person is ________.
Computer Fraud
Phishing Scam
Identity Theft
Malware Attack
________ is the act of gaining unauthorized access to a computer system or network.
Hacking
Browsing
Networking
Programming
________ is a situation in which sensitive data is stolen or viewed by someone who is not authorized to do so.
A data breach
A software update
A backup process
A network upgrade
A ________ is a device or software that blocks unauthorized access to a network.
Firewall
Router
Switch
Modem
________ means using an open wireless network to access the Internet without permission.
Piggybacking
Phishing
Spoofing
Sniffing
A(n) ________ is a program or hardware device that captures what is typed on a keyboard.
Keylogger
Firewall
Router
Monitor
You should use a(n) ________ user account for everyday computing.
Standard
Administrator
Guest
Root
Which password is the strongest?
password123
Qwerty!2021
letmein
9$Gf!2zLp@xQ
Use ________ to convert plain text into code called ciphertext.
encryption
decryption
compression
transmission
Moore's Law: Roughly every two years, the number of transistors on microchips will ________.
double
halve
stay the same
decrease by 10%
What is information?
Input, process, output: it's the most basic structure for describing a ________.
process
diagram
machine
cycle
Motherboard: the main ________ board of the computer.
circuit
plastic
memory
display
CPU (Central Processing Unit): The internal operating unit or '________' of a computer.
brain
engine
memory
disk
Random Access Memory (RAM): Computer location where instructions and data are stored on a ________ basis.
temporary
permanent
annual
random
Harddrive: It stores and saves everything you put onto the ________.
computer
keyboard
monitor
printer
Heatsink: A device or substance for absorbing excessive or unwanted ________.
heat
light
sound
water
Expansion slot: Opening on the motherboard where an expansion board, also called an ________ card, can be inserted.
adapter
memory
processor
battery
Power Supply Unit: Provides the electrical power for a PC. Converts standard AC power into various voltages of ________ electricity in a PC.
DC
AC
static
solar
How is data stored?
What is a Byte?
A group of eight bits.
A single binary digit.
A group of four bits.
A type of computer virus.
What is a Bit?
What is System Software responsible for?
What does Utility Software do?
Performs specific tasks to keep the computer running. Utility software is always running in the background.
Creates and edits multimedia files such as videos and images.
Manages network connections and internet browsing.
Develops and compiles programming code for applications.
What is Application Software?
What is a network?
What does a Local Area Network (LAN) do?
Connects a group of computers in close proximity, such as in an office building, school, or home.
Connects computers across different continents.
Provides wireless internet to mobile phones only.
Controls the power supply in a building.
What does a Wide Area Network (WAN) do?
Spans a large geographic area such as a state, province, or country.
Connects devices within a single room only.
Is used only for wireless communication within a building.
Operates only within a single computer.
What does a Personal Area Network (PAN) do?
