1.
Which of the following definitions best defines the protocol component of data communications?
Correct Answer
D. The rules that govern the orderly transfer of the data
Explanation
The protocol component of data communications refers to the rules that govern the orderly transfer of data. These rules define how data is formatted, transmitted, received, and interpreted by the devices involved in the communication process. By following these protocols, devices can ensure that data is transferred reliably and efficiently between the sender and receiver. The other options mentioned in the question - the sending computer, the receiving computer, and the media - are all important components of data communications, but they do not specifically define the protocol component.
2.
Which of the following devices can be classified as examples of hardware?
Correct Answer
B. Keyboard, mouse, and monitor
Explanation
The devices keyboard, mouse, and monitor can be classified as examples of hardware because they are physical components that can be touched and interacted with. These devices are essential for inputting and outputting information from a computer system. On the other hand, Word, Internet Explorer, Windows, Safari, and AOL are software programs or applications that run on the hardware devices.
3.
Which of the following can be classified as examples of software?
Correct Answer
D. Windows, Safari, and AOL
Explanation
The examples given in the answer, Windows, Safari, and AOL, are all software programs. Windows is an operating system, Safari is a web browser, and AOL is an internet service provider. These are all examples of software because they are computer programs that provide specific functions or services to the user.
4.
Which of the following is the definition of a computer?
Correct Answer
D. All of the above
Explanation
The correct answer is "All of the above" because a computer is an electronic device that performs multiple functions. It receives data through input devices, processes the data using a central processing unit (CPU), and stores the data in memory. Additionally, it can produce a result or output the processed data through output devices. Therefore, all the given options accurately define the functions of a computer.
5.
Which of the following are three examples of system components?
Correct Answer
B. Memory, Basic Controllers, and Central Processing Unit
Explanation
The correct answer is "Memory, Basic Controllers, and Central Processing Unit". These three examples are all components of a system. Memory refers to the storage space used to hold data and instructions. Basic Controllers are responsible for managing and coordinating the activities of other components. The Central Processing Unit (CPU) is the main processing unit of a computer that performs calculations and executes instructions.
6.
Any character, number, or letter can be represented by using combinations of 0s and 1s. In computer terminology, what is this system called?
Correct Answer
C. Binary System
Explanation
The system that represents any character, number, or letter using combinations of 0s and 1s is called the binary system. This system is fundamental to computer technology as it allows for the representation and manipulation of data in digital form. It is based on the concept of using two digits, 0 and 1, to represent all possible values. The binary system is widely used in computer systems and forms the foundation of digital communication and computation.
7.
Which of the following definitions best defines the receiver component of a computer system?
Correct Answer
B. The computer that receives the message
Explanation
The receiver component of a computer system refers to the computer that receives the message. In a computer system, the sender component is responsible for sending the message, while the receiver component is responsible for receiving and processing the message. This distinction is important for understanding the flow of information within a computer system and how different components interact with each other.
8.
What are the four components of data communications?
Correct Answer
C. Sender, receiver, channel, and protocol
Explanation
The four components of data communications are the sender, receiver, channel, and protocol. The sender is responsible for initiating the transmission of data, while the receiver is responsible for receiving and interpreting the data. The channel refers to the medium through which the data is transmitted, such as a wired or wireless connection. The protocol refers to the set of rules and procedures that govern the transmission of data, ensuring that it is sent and received correctly.
9.
There are two types of memory on the motherboard of a computer. What are these two types of memory called?
Correct Answer
A. Random Access Memory and Read Only Memory
Explanation
The two types of memory on the motherboard of a computer are Random Access Memory (RAM) and Read Only Memory (ROM). RAM is a volatile memory that is used to temporarily store data that can be accessed and modified by the computer's processor. ROM, on the other hand, is a non-volatile memory that contains permanent instructions and data that cannot be modified.
10.
Long term memory on the motherboard is nonvolatile which means that it can not be changed. What is the other name for this type of memory?
Correct Answer
A. Read Only memory
Explanation
The correct answer is Read Only memory. Read Only memory (ROM) is a type of memory on the motherboard that is nonvolatile, meaning it retains its data even when the power is turned off. It is called Read Only memory because the data stored in it cannot be changed or modified by the user. ROM is commonly used to store firmware or permanent instructions that are essential for the computer to boot up and perform basic functions.
11.
Which of the following is NOT a characteristic of RAM?
Correct Answer
C. It is also known as Read Only Memory
Explanation
The given answer is correct because RAM stands for Random Access Memory, which is a type of computer memory that is volatile and can be both read from and written to. It is commonly referred to as short term memory because it is used for temporary storage of data that is actively being used by the computer. On the other hand, Read Only Memory (ROM) is a type of non-volatile memory that stores permanent instructions and data. Therefore, it is incorrect to say that RAM is also known as Read Only Memory.
12.
Additional memory cards and video cards can be added to the motherboard of a computer. Where on the motherboard would an additional card be inserted?
Correct Answer
B. In an expansion slot
Explanation
An additional card, such as a memory card or video card, can be inserted into an expansion slot on the motherboard of a computer. Expansion slots are specifically designed to accommodate additional cards and provide the necessary connections for them to function properly. These slots are typically located on the side or bottom of the motherboard and allow for the expansion of the computer's capabilities by adding new hardware components.
13.
A port can connect up to 127 devices. This port is used to connect just about all devices to a computer. What is the name for this type of port?
Correct Answer
C. Universal Serial Bus – USB
Explanation
The correct answer is Universal Serial Bus (USB). USB is a type of port that can connect up to 127 devices to a computer. It is commonly used to connect various devices such as keyboards, mice, printers, and external storage devices to a computer.
14.
Which of the following is NOT an example of software?
Correct Answer
C. Keyboard
Explanation
A keyboard is not an example of software because it is a physical hardware device that allows users to input data into a computer. Software refers to the programs and applications that run on a computer system, such as operating systems like Windows, word processing software like Microsoft Word, and spreadsheet software like Microsoft Excel. Keyboards are essential input devices for interacting with software, but they themselves are not software.
15.
Which of the following is NOT a benefit of using computer?
Correct Answer
D. Unlimited space
Explanation
Unlimited space is not a benefit of using a computer because computers have a finite amount of storage capacity. While computers can store a large amount of data, they are still limited by the physical storage devices they use, such as hard drives or solid-state drives. Therefore, claiming unlimited space as a benefit of using a computer would be inaccurate.
16.
What are the names for the two types of networks?
Correct Answer
D. WAN and LAN
Explanation
WAN stands for Wide Area Network, which is a network that covers a large geographical area, typically connecting multiple smaller networks together. LAN stands for Local Area Network, which is a network that covers a small area, such as a home, office, or building. Therefore, the correct answer is WAN and LAN, as these are the two types of networks commonly used.
17.
Which of the following definitions best defines the Central Processing Unit?
Correct Answer
B. The brains of the computer
Explanation
The Central Processing Unit (CPU) is often referred to as the "brains" of the computer because it is responsible for executing instructions and performing calculations. It is the main component that controls and coordinates the activities of all other hardware and software components in the computer system. The CPU processes data and instructions, performs arithmetic and logical operations, and manages the flow of information within the computer. It is essentially the core component that carries out the majority of the computer's processing and decision-making tasks.
18.
Which of the following best describes the Control Unit of a computer?
Correct Answer
D. The Control Unit controls all of the CPUs activities
Explanation
The Control Unit is responsible for coordinating and controlling all activities within the Central Processing Unit (CPU) of a computer. It directs the flow of data and instructions between the different components of the CPU, such as the arithmetic logic unit (ALU) and the memory unit. It also manages the execution of instructions, ensuring that they are carried out in the correct sequence and coordinating the timing of operations. In summary, the Control Unit acts as the "brain" of the CPU, controlling and coordinating all of its activities.
19.
Which of the following is not a System Component of a computer?
Correct Answer
C. The Serial Bus
Explanation
The Serial Bus is not a system component of a computer. The Control Unit, Central Processing Unit, and Memory are all essential components that make up a computer system. The Control Unit is responsible for coordinating and controlling the activities of all the other components. The Central Processing Unit (CPU) is the brain of the computer, responsible for executing instructions and performing calculations. Memory is used to store data and instructions temporarily while the computer is running. However, the Serial Bus is not a specific component but rather a type of communication interface used to connect different devices to the computer.
20.
Computers can be connected in a relatively small area. What is this type of network known as?
Correct Answer
A. Local Area Network
Explanation
A Local Area Network (LAN) is a type of network that connects computers and devices within a relatively small area, such as a home, office, or building. It allows for the sharing of resources, such as files and printers, and enables communication between connected devices. This type of network is typically used in a single location and is often faster and more secure than a Wide Area Network (WAN), which connects computers over a larger geographical area.
21.
When local area networks are expanded to include other local area networks, what are they now known as?
Correct Answer
D. Wide Area Networks
Explanation
When local area networks are expanded to include other local area networks, they are known as wide area networks (WANs). WANs connect multiple LANs over a larger geographical area, such as connecting different offices or branches of an organization. This allows for communication and data sharing between the different LANs, enabling users to access resources and services across the network.
22.
Which one of the following system components controls the flow of data between the computer and its peripheral devices?
Correct Answer
A. Basic Controllers
Explanation
Basic controllers are responsible for controlling the flow of data between the computer and its peripheral devices. They act as intermediaries, managing the communication and data transfer between the computer's central processing unit (CPU) and the connected peripherals such as printers, scanners, and external storage devices. These controllers ensure that the data is transmitted accurately and efficiently, allowing the computer to interact with and utilize the peripheral devices effectively.
23.
Which of the following system components connects a peripheral device to the computer?
Correct Answer
C. USB Ports
Explanation
USB ports are the system components that connect peripheral devices to the computer. USB (Universal Serial Bus) ports provide a standardized interface for connecting various devices such as printers, keyboards, mice, external hard drives, and more. These ports allow for easy plug-and-play functionality, enabling users to connect and disconnect devices without having to restart the computer. USB ports are widely used and offer fast data transfer rates, making them a popular choice for connecting peripheral devices to computers.