1.
When employees use computer technology to work from home or during business travel and are linked by the network to the office.
Correct Answer
C. Telecommuting
Explanation
Telecommuting refers to the practice of employees using computer technology to work remotely from home or while traveling, while still being connected to the office network. This allows employees to work outside of the traditional office environment, increasing flexibility and reducing the need for physical presence. The other options, hacker, spyware, and server, do not accurately describe this scenario. A hacker refers to someone who gains unauthorized access to computer systems, spyware refers to malicious software that monitors and collects information without the user's consent, and a server is a computer or system that provides services to other computers.
2.
A criminal activity that is used by people to fraudulenty obtain personal information, such as usernames, passwords, cedit card details, and your social security information.
Correct Answer
D. pHishing
Explanation
Phishing is a criminal activity where individuals attempt to fraudulently obtain personal information such as usernames, passwords, credit card details, and social security information. This is typically done through deceptive methods like fake emails or websites that appear legitimate, tricking unsuspecting individuals into revealing their sensitive information. Phishing is a common technique used by hackers to gain unauthorized access to personal accounts and carry out illegal activities.
3.
The legal method for protecting the intellectual property of the author or creator.
Correct Answer
B. Copyright
Explanation
Copyright is the legal method for protecting the intellectual property of the author or creator. It grants exclusive rights to the creator, allowing them to control the use and distribution of their work. This includes software, as it is considered a form of intellectual property. Copyright ensures that the creator's work is not copied, reproduced, or distributed without their permission, providing them with legal protection and the ability to monetize their creations.
4.
People who create and send programs such as viruses in order to do harm to other computers.
Correct Answer
A. Hackers
Explanation
Hackers are individuals who create and send programs such as viruses in order to do harm to other computers. They exploit vulnerabilities in computer systems to gain unauthorized access and cause damage. Hackers can steal sensitive information, disrupt systems, or even take control of computers remotely. They are skilled in computer programming and use their knowledge for malicious purposes.
5.
The largest network in the world connecting millions of computers worldwide.
Correct Answer
B. Internet
Explanation
The correct answer is internet. The internet is a global network that connects millions of computers worldwide. It allows for the sharing of information, communication, and access to various services and resources. It is the largest network in the world, spanning across countries and continents, enabling people to connect and interact with each other on a global scale.
6.
One million cycles per second.
Correct Answer
D. Megahertz
Explanation
Megahertz refers to one million cycles per second, which is a unit used to measure the frequency of a computer's central processing unit (CPU). It represents the speed at which the CPU can execute instructions and perform calculations. Therefore, the correct answer in this context is megahertz, as it accurately describes the measurement of CPU speed.
7.
Two or more computers connected to share data, either by wires or using wireless technology.
Correct Answer
A. Network
Explanation
A network refers to the connection of two or more computers that are linked together to share data. This can be achieved through the use of wires or wireless technology. A network allows for the communication and transfer of information between connected devices, enabling them to share resources and collaborate effectively.
8.
Connected computers within a small geographical area such as a home, office, school, or building.
Correct Answer
B. Local area networks (LANS)
Explanation
Local area networks (LANS) are the connected computers within a small geographical area such as a home, office, school, or building. LANS are used to share resources, such as printers and files, and allow for communication between devices within the network. A web server is a specific type of server that hosts websites and serves web pages to clients. While a network and a router are both components of a LAN, they do not encompass the entire concept of LANS.
9.
Device that allow computers to communicate by converting data in bytes to sounds media in order to send data and then convert it back to bytes after receiving data.
Correct Answer
C. Modem
Explanation
A modem is a device that allows computers to communicate by converting data in bytes to sounds or other media formats in order to send data over a network. It then converts the received data back to bytes for the computer to process. A modem is essential for connecting to the internet or other networks, as it facilitates the transmission and reception of data between devices.
10.
An electronic device that joins two or more networks and directs the flow of information across the network.
Correct Answer
D. Router
Explanation
A router is an electronic device that connects multiple networks and controls the flow of information between them. It receives data packets from one network and determines the most efficient path for them to reach their destination on another network. Routers use routing tables and protocols to make these decisions. They play a crucial role in directing network traffic and ensuring efficient communication between different networks.
11.
A device that converts text or graphics from a printed page into code that a computer can process.
Correct Answer
C. Scanner
Explanation
A scanner is a device that converts text or graphics from a printed page into code that a computer can process. It does this by using optical character recognition (OCR) technology to scan the printed page and convert it into digital information that can be understood by the computer. Scanners are commonly used for tasks such as scanning documents, photos, or artwork and converting them into digital files that can be edited, stored, or shared electronically. Unlike printers, which produce hard copies of digital files, scanners take physical copies and convert them into digital format. Therefore, the correct answer is scanner.
12.
Permanent memory that stores the instructions that tell the computer how to begin to load its operating system and programs.
Correct Answer
A. Read-only memory (ROM)
Explanation
ROM is a type of permanent memory that stores the instructions for the computer to load its operating system and programs. Unlike RAM, ROM cannot be modified or erased by normal computer operations. It contains firmware that is pre-programmed during manufacturing and retains its data even when the computer is powered off. Therefore, ROM is the correct answer for the given question.
13.
The clarity of an image on the screen, measured in pixels. The higher resolution, the more pixels and clearer the image.
Correct Answer
D. Resolution
Explanation
Resolution refers to the number of pixels in an image displayed on a screen. The higher the resolution, the more pixels there are, resulting in a clearer and more detailed image. This means that a higher resolution display will have sharper images and text compared to a lower resolution display. Therefore, resolution plays a crucial role in determining the clarity and quality of an image on a screen.
14.
Data entered into the computer through a varity of devices, such as a keyboard, microphone, or mouse.
Correct Answer
A. Input
Explanation
The given statement suggests that data is entered into the computer through various devices like a keyboard, microphone, or mouse. This process of entering data into the computer is referred to as input. Therefore, the correct answer is "input".
15.
Located inside the system unit, a circuit board where the computer memory, power supply, the processor, and other vital electronic parts are housed.
Correct Answer
C. Motherboard
Explanation
The correct answer is motherboard. The motherboard is a circuit board that is located inside the system unit of a computer. It houses important electronic components such as the computer memory, power supply, processor, and other vital parts. The motherboard acts as a central hub, connecting all the different components of the computer and allowing them to communicate with each other.
16.
Includes the system unit of a computer, and all peripheral input and output devices
Correct Answer
D. Computer system
Explanation
The computer system includes the system unit of a computer, as well as all peripheral input and output devices. This means that the computer system encompasses not only the main processing unit, but also devices such as keyboards, mice, monitors, printers, and any other devices that are connected to the computer for input or output purposes. The computer system is the complete set of hardware components that work together to perform tasks and execute programs.
17.
The physical components, devices or parts, of the computer such as the central processing unit (CPU), the monitor, the keyboard, and the mouse.
Correct Answer
A. Hardware
Explanation
The correct answer is hardware because it refers to the physical components or devices of a computer system. These include the CPU, monitor, keyboard, and mouse. Hardware is tangible and can be seen and touched. It is different from software, which refers to the programs and instructions that run on the hardware. Hard disk drive and zip drive are specific examples of hardware components.
18.
A very portable, small solid state storage device that plugs directly into a USB port on the computer system unit and that can read and write data.
Correct Answer
D. USB flash drive
Explanation
A USB flash drive is a small, portable, and solid-state storage device that can be easily plugged into a computer's USB port. It allows for the reading and writing of data, making it a convenient tool for transferring files between different devices. Unlike DVDs, CDs, and floppy disks, which require specific drives to read and write data, a USB flash drive can be used on any computer with a USB port, making it highly versatile and widely used for data storage and transfer purposes.
19.
A small lightweight computer that includes monitor, keyboard, hard disk drive, CD/DVD storage drives, and a pointing device as one unit that folds for easy portability. Also called a notebook computer.
Correct Answer
A. Laptop
Explanation
The given correct answer is "laptop". A laptop is a small lightweight computer that includes a monitor, keyboard, hard disk drive, CD/DVD storage drives, and a pointing device as one unit that folds for easy portability. It is also commonly referred to as a notebook computer.
20.
A single character of data such as a letter which is composed of eight bits.
Correct Answer
C. Byte
Explanation
A byte is a unit of digital information that consists of 8 bits. It is commonly used to represent a single character, such as a letter, in computer systems. The other options mentioned, such as zip drive, DVD drive, and pixels, are not specifically related to the definition of a byte.