1.
An IP address is best defined as...
Correct Answer
A. An IP Address is a unique number consisting of 4 parts separated by dots (eg: 217.247.84.89) associated with every system connected to a network
Explanation
An IP address is a unique number consisting of four parts separated by dots, such as 217.247.84.89. It is associated with every system connected to a network. This address allows the system to be identified and communicate with other devices on the network. Therefore, the correct answer is that an IP address is a unique number associated with every system connected to a network.
2.
Malware is best defined as...
Correct Answer
C. Software designed to infiltrate or damage a computer system without the owner's informed consent.
Explanation
Malware refers to software that is specifically created to infiltrate or harm a computer system without the knowledge or consent of the owner. It includes various types of malicious programs such as viruses, worms, trojans, ransomware, and spyware. The purpose of malware can range from stealing sensitive information to disrupting system operations or gaining unauthorized access. It is important to have reliable antivirus software and practice safe browsing habits to protect against malware attacks.
3.
Which one of the following best defines the term Operating System?
Correct Answer
D. All of the above.
Explanation
The term Operating System refers to the software that allows computer users to run applications with the hardware of a specific system. It is also the master control program that manages a computer's internal functions and provides a means of control to the computer's operations and file system. Additionally, it is the software that manages the hardware and software interface of a computer. Therefore, the correct answer is "All of the above" as all the given options accurately define the term Operating System.
4.
Which one is not an output device?
Correct Answer
D. Keyboard
Explanation
A keyboard is not an output device because it is an input device. It is used to input data and commands into a computer system, rather than displaying or producing any output. Output devices, on the other hand, are used to display or produce information from the computer system, such as printers for printing documents, monitors for displaying visuals, and modems for transferring data.
5.
One MB is equal to...
Correct Answer
D. 1024KB
Explanation
The correct answer is 1024KB because in computer science, the binary system is used for measuring data storage. In this system, 1 kilobyte (KB) is equal to 1024 bytes, and since 1 megabyte (MB) is equal to 1024 kilobytes, 1 MB is equal to 1024 x 1024 bytes, or 1,048,576 bytes. Therefore, the correct answer is 1024KB.
6.
Select the 3 graphics files from the list below.
Correct Answer(s)
B. Untitled.jpg
C. Untitled.bmp
E. Untitled.tiff
Explanation
The correct answer is untitled.jpg, untitled.bmp, and untitled.tiff. These three file extensions (.jpg, .bmp, .tiff) are commonly used for graphics files, while the other two extensions (.nfo and .ogg) are typically used for other purposes such as text or audio files.
7.
Select the URL from the list below.
Correct Answer
B. Http://www.yahoo.com
Explanation
The correct answer is http://www.yahoo.com because it is the only option that starts with "http://" which is the standard protocol for accessing websites. The other options are an email address, a local file path, and an IP address, none of which are valid URLs.
8.
Which of the following programs is not an email client.
Correct Answer
C. Mozilla Firefox
Explanation
Mozilla Firefox is not an email client. It is a web browser developed by Mozilla Foundation. While Microsoft Outlook 2003, Windows Live Mail, and Outlook Express 6 are all email clients that allow users to send, receive, and manage their emails, Mozilla Firefox does not have built-in email functionality. It is primarily used for browsing the internet and accessing websites.
9.
A modem is best defined as...
Correct Answer
A. A device that allows you to connect your PC to to an internet service.
Explanation
A modem is a device that allows you to connect your PC to an internet service. It is responsible for converting the digital signals from your computer into analog signals that can be transmitted over telephone lines or cable lines. The modem then receives the analog signals from the internet service provider and converts them back into digital signals that your computer can understand. This allows you to access the internet and communicate with other devices and networks.
10.
What is the shortcut for PASTE?
Correct Answer
B. Ctrl + V
Explanation
The shortcut for PASTE is Ctrl + V. This combination of keys is commonly used to paste content that has been copied or cut from one location to another. It is a widely recognized and frequently used shortcut in various computer applications and programs.
11.
Which is not an operating system?
Correct Answer
C. MS-Word
Explanation
MS-Word is not an operating system. It is a word processing software developed by Microsoft. Operating systems, on the other hand, are software that manage computer hardware and software resources and provide services for computer programs. Examples of operating systems include DOS, Windows, and LINUX.
12.
The brain of the computer. This part does the calculation, moving and processing of information.
Correct Answer
A. CPU
Explanation
The CPU, or Central Processing Unit, is often referred to as the "brain" of the computer because it is responsible for executing instructions and performing calculations. It carries out tasks such as processing data, performing mathematical operations, and coordinating the activities of all the other hardware components. The CPU is the part of the computer that handles the majority of the information processing and is crucial for the overall performance and speed of the system.
13.
What does "www" stand for?
Correct Answer
C. World Wide Web
Explanation
The correct answer is "World Wide Web". The term "www" stands for World Wide Web, which is a system of interconnected hypertext documents accessed via the internet. It is a common prefix used in website URLs to indicate that the webpage belongs to the World Wide Web.
14.
What is this computer component?
Correct Answer
D. Network Interface Card
Explanation
A network interface card (NIC) is a computer component that allows a computer to connect to a network. It provides the necessary hardware to establish a wired or wireless connection and enables the computer to send and receive data over the network. This component is essential for accessing the internet, connecting to other devices on a local network, and facilitating communication between computers.
15.
What is this computer component?
Correct Answer
B. CPU
Explanation
The correct answer is CPU, which stands for Central Processing Unit. The CPU is the main component of a computer responsible for executing instructions and performing calculations. It is often referred to as the "brain" of the computer as it carries out all the necessary processing tasks. RAM, Hard Disk, and Motherboard are also important computer components, but they serve different functions compared to the CPU.
16.
What is this computer component?
Correct Answer
C. Chassis
Explanation
The correct answer is "Chassis." A chassis is a computer component that refers to the physical framework or housing that holds and protects all the internal components of a computer. It provides structural support and helps in organizing and connecting various hardware components like the motherboard, CPU, hard drive, and other peripherals.
17.
What is this device?
Correct Answer
B. Wireless Router
Explanation
A wireless router is a device that allows multiple devices to connect to a network wirelessly. It acts as a central hub for internet connectivity and enables devices such as smartphones, laptops, and tablets to access the internet without the need for physical cables. It receives data from the modem and transmits it wirelessly to connected devices, providing internet access throughout a home or office. Therefore, a wireless router is the correct answer as it fits the description of a device that facilitates wireless internet connectivity.
18.
What is the function of this device?
Correct Answer
C. It is used to store large amounts of data in a computer system, data is retained on this device even when the computer is turned off.
Explanation
The correct answer is "It is used to store large amounts of data in a computer system, data is retained on this device even when the computer is turned off." This answer accurately describes the function of a storage device in a computer system. It highlights the ability of the device to store large amounts of data and retain it even when the computer is powered off.
19.
This is a measurement of speed over a network.
Correct Answer
D. Megabits per second.
Explanation
Megabits per second is the correct answer because it is a commonly used unit to measure the speed of data transfer over a network. Megabits per second (Mbps) represents the amount of data that can be transmitted in one second. It is a standard unit for measuring internet connection speeds and is used to determine the efficiency and performance of network connections. Megabytes, bits, and megahertz are not suitable for measuring network speed as they represent different aspects such as file size, individual data units, and frequency respectively.
20.
Bandwidth
Correct Answer
B. A measurement of how much information can be carried in a given time period (usually a second) over a wired or wireless communications link.
Explanation
Bandwidth refers to the measurement of how much information can be carried in a given time period, typically a second, over a wired or wireless communications link. It is not the speed at which data is transferred from the server to the client, nor is it a unit of information or computer storage equal to one billion bytes. Therefore, the correct answer is the option that defines bandwidth as a measurement of information carried over a communications link in a specific time period.
21.
Download
Correct Answer
D. When data is received on your PC. This includes, but is not limited to, viewing webpages, receiving e-mail, watching videos, getting movies, getting music and email attachments.
22.
Ping
Correct Answer
B. A computer network tool used to test whether a particular host is reachable across an IP network; it is also used to self test the Network Interface Card (NIC) of the computer.
Explanation
Ping is a computer network tool used to test the reachability of a particular host across an IP network. It sends a small packet of data to the host and waits for a response. If a response is received, it indicates that the host is reachable. Ping can also be used to self-test the Network Interface Card (NIC) of the computer by sending a packet to the loopback address (127.0.0.1) and checking for a response. Therefore, the correct answer is that Ping is a computer network tool used for testing host reachability and NIC self-testing.
23.
Which operating system was the successor to Windows 98?
Correct Answer
C. Windows ME
Explanation
Windows ME, also known as Windows Millennium Edition, was the successor to Windows 98. It was released by Microsoft in 2000 and aimed to improve the stability and usability of the Windows 9x series. Despite its intentions, Windows ME was not well received by users due to its lack of compatibility with older software and frequent crashes. Nonetheless, it marked the end of the Windows 9x era and paved the way for the more successful Windows XP.
24.
Which of the following is not an internet browser?
Correct Answer
D. Thunderbird
Explanation
Thunderbird is not an internet browser, but rather an email client developed by Mozilla. It allows users to manage their emails, contacts, and calendars. While Safari, Firefox, and Opera are all popular internet browsers used to access and navigate the internet, Thunderbird serves a different purpose by focusing on email management rather than web browsing.
25.
The internet was invented by
Correct Answer
B. The US Department of Defense
Explanation
The correct answer is the US Department of Defense. The internet was initially developed by the US Department of Defense in the late 1960s as a means of communication and data sharing between research institutions and the military. It was called ARPANET and served as the foundation for the modern internet. While Bill Gates, Steve Jobs, and Albert Einstein have made significant contributions in their respective fields, they were not directly involved in the invention of the internet.