1.
Which computer
component is considered the nerve center of the computer system and is
responsible for processing all of the data within the machine?
Correct Answer
B. CPU
Explanation
The CPU, or Central Processing Unit, is responsible for processing all of the data within the computer system. It is often referred to as the "brain" or "nerve center" of the computer because it performs the majority of the calculations and instructions necessary for the computer to function. The CPU interprets and executes instructions from the computer's memory, performs arithmetic and logical operations, and controls the flow of data between different components of the computer system.
2.
What are two advantages of
purchasing a preassembled computer ? (Choose two.)
Correct Answer(s)
A. Usually a lower cost
D. Adequate for performing most general applications
Explanation
The two advantages of purchasing a preassembled computer are usually a lower cost and being adequate for performing most general applications.
3.
A user plans to run
multiple applications simultaneously on a computer. Which computer component is
essential to accomplish this ?
Correct Answer
A. RAM
Explanation
RAM stands for Random Access Memory. It is a type of computer memory that stores data that is currently being used by the computer's operating system, applications, and processes. It is a volatile memory, meaning that it loses its data when the computer is powered off or restarted. RAM is used to temporarily store data that is needed for immediate access by the CPU, such as program instructions and data that is being actively processed. It allows the computer to quickly access and manipulate data, which can improve overall system performance.
4.
Which adapter card enables
a computer system to exchange information with other systems on a local network
?
Correct Answer
E. Network Interface Card
Explanation
A network interface card (NIC) is a hardware component that enables a computer to connect to a network. It provides the physical connection between the computer and the network, allowing the computer to send and receive data over the network. NICs can be wired or wireless and can support different types of network connections, such as Ethernet or Wi-Fi. They are essential for connecting computers to local area networks (LANs), wide area networks (WANs), and the internet.
5.
What is the main storage
drive used by servers, desktops, and laptops ?
Correct Answer
B. Hard Drive
Explanation
The main storage used by servers, desktops, and laptops is the hard drive. The hard drive is a non-volatile storage device that stores and retrieves digital information using magnetic storage and rotating platters. It provides a large capacity for storing operating systems, software applications, documents, and multimedia files. Unlike other options listed, such as tap drive, optical drive (DVD), and floppy disk drive, the hard drive is the most commonly used and widely available storage solution for computers.
6.
Which component is designed
to remove high-voltage spikes and surges from a power line so that they do not
damage a computer system ?
Correct Answer
B. Surge Processor
Explanation
A surge processor is designed to remove high-voltage spikes and surges from a power line so that they do not damage a computer system. It acts as a protective component that prevents these electrical disturbances from reaching and harming the sensitive components of the computer, such as the CPU, motherboard, and hard drive. By filtering out these spikes and surges, the surge processor helps to ensure the stable and safe operation of the computer system.
7.
What are two examples of
output peripheral devices ? (Choose two.)
Correct Answer(s)
A. Printer
B. Speaker
Explanation
The two examples of output peripheral devices mentioned in the answer are a printer and a speaker. These devices are used to receive and display information from a computer system. A printer is used to produce hard copies of documents or images, while a speaker is used to produce audio output.
8.
What two functions does a
UPS provide that a surge protector does not ? (Choose two.)
Correct Answer(s)
B. Provides backup power from an internal battery
E. Gives the user time to safely shut down the computer if the power fails
Explanation
A UPS (Uninterruptible Power Supply) provides two functions that a surge protector does not. Firstly, it provides backup power from an internal battery, ensuring that the computer remains powered on even during a power outage. Secondly, it gives the user time to safely shut down the computer if the power fails, preventing any data loss or damage to the system. These two functions make a UPS more reliable and effective in protecting the computer from power-related issues compared to a surge protector.
9.
What is a word processor ?
Correct Answer
B. It is a program designed to perform a specific function.
Explanation
A word processor is a program designed to perform a specific function. It is not a physical computer component or a program that controls the computer resources. It is also not a functional part of an operating system. A word processor is a software application that allows users to create, edit, and format text documents. It provides features such as spell checking, formatting options, and the ability to insert images and tables.
10.
What is the purpose of the
ASCII code ?
Correct Answer
D. Represents letters, characters, and numbers with bits
Explanation
The purpose of the ASCII code is to represent letters, characters, and numbers with bits. ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns a unique numerical value to each character, including letters, digits, punctuation marks, and special characters. These numerical values are then represented using bits, allowing computers to store, transmit, and interpret text-based information.
11.
Why do servers often
contain duplicate or redundant parts ?
Correct Answer
B. Servers should be accessible at all times.
Explanation
Servers often contain duplicate or redundant parts because they need to be accessible at all times. Having duplicate parts ensures that if one component fails, there is a backup in place to maintain the server's functionality. This redundancy helps minimize downtime and ensures continuous access to the server's resources and services.
12.
What are two benefits of
hooking up a laptop to a docking station ? (Choose two.)
Correct Answer(s)
B. An external monitor can be used.
C. Alternate connectivity options may be available.
Explanation
Hooking up a laptop to a docking station allows for the use of an external monitor, which can provide a larger display or dual monitor setup for increased productivity. Additionally, a docking station often provides alternate connectivity options such as additional USB ports, Ethernet ports, or audio outputs, expanding the capabilities of the laptop and making it easier to connect to other devices or networks.
13.
Applications can be grouped into general use
software or industry specific software. What are two examples of industry
specific software ? (Choose two.)
Correct Answer(s)
A. CAD
E. Medical practice management
Explanation
The question asks for examples of industry-specific software. CAD (Computer-Aided Design) is a specialized software used in industries such as architecture and engineering for designing and drafting. Medical practice management software is specifically designed for managing the operations and administrative tasks of medical practices, such as appointment scheduling, billing, and patient records. Both CAD and medical practice management software are examples of industry-specific software as they cater to the specific needs and requirements of their respective industries.
14.
Which three terms describe
different types of computers ? (Choose three.)
Correct Answer(s)
C. Laptop
D. desktop
E. Mainframe
Explanation
The terms laptop, desktop, and mainframe describe different types of computers. A laptop is a portable computer that is designed for mobility and can be used anywhere. A desktop is a personal computer that is designed to stay in one location and is typically more powerful than a laptop. A mainframe is a large and powerful computer that is used to support multiple users and handle large amounts of data processing. These three terms represent different categories of computers based on their size, portability, and processing capabilities.
15.
How is a server different
from a workstation computer ?
Correct Answer
B. The server provides services to clients.
Explanation
A server is different from a workstation computer because it provides services to clients. While a workstation computer may have fewer applications installed and may have more users attached to it, the key distinction is that a server's primary function is to provide services to other devices or users on a network. This can include file sharing, hosting websites or applications, managing network resources, or providing centralized data storage.
16.
How many values are
possible using a single binary digit ?
Correct Answer
B. 2
Explanation
A single binary digit can have two possible values, which are 0 and 1.
17.
What measurement is
commonly associated with computer processing speed ?
Correct Answer
C. Hertz
Explanation
The measurement commonly associated with computer processing speed is hertz. Hertz measures the number of cycles per second that a processor can execute, indicating how quickly it can process instructions and perform tasks. A higher hertz value generally indicates a faster processing speed.
18.
What can be used to prevent
electrostatic discharge (ESD) ?
Correct Answer
C. Grounding strap
Explanation
A grounding strap can be used to prevent electrostatic discharge (ESD) by providing a path for the electrical charge to safely dissipate into the ground. This helps to prevent the build-up of static electricity on a person or object, reducing the risk of ESD damage to electronic components. Dry and non-humid conditions, carpeted floors, and uncluttered workspaces may also help to minimize the risk of ESD, but a grounding strap is specifically designed for this purpose.
19.
If a peripheral device is
not functioning, what are three things you should do to solve the problem ?
(Choose three.)
Correct Answer(s)
A. Use the testing functionality on the peripHeral itself, if available.
B. Verify that all cables are connected properly.
D. Ensure that the peripHeral is powered on.
Explanation
To solve the problem of a non-functioning peripheral device, the first thing you should do is use the testing functionality on the peripheral itself, if available. This will help identify any issues with the peripheral itself. Next, verify that all cables are connected properly to ensure there are no loose or disconnected connections. Finally, ensure that the peripheral is powered on, as it may not function if it is not receiving power. Reloading the computer operating system is not necessary in this situation and may not solve the problem.
20.
Which two steps should be
performed when installing a peripheral device ? (Choose two.)
Correct Answer(s)
A. Download and install the most current driver.
C. Connect the peripHeral using an appropriate cable or wireless connection.
Explanation
When installing a peripheral device, it is important to perform two steps. Firstly, downloading and installing the most current driver is necessary to ensure that the device is compatible with the computer and can function properly. Secondly, connecting the peripheral using an appropriate cable or wireless connection is essential for establishing a reliable connection between the device and the computer. These two steps ensure that the peripheral device can be successfully installed and used on the computer.
21.
In newer operating systems,
how are system resources assigned by default when components are installed ?
Correct Answer
D. Dynamically assigned between the component and the operating system
Explanation
System resources are assigned dynamically between the component and the operating system in newer operating systems. This means that the operating system and the component work together to allocate resources as needed, rather than having them manually assigned by the operating system or the administrator. This allows for more efficient and flexible resource allocation, as resources can be allocated and reallocated based on the current needs of the system.