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 (e.g.: 217.247.84.89) associated with every system connected to a network.
Explanation
An IP address is a unique numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. It consists of four parts separated by dots, with each part ranging from 0 to 255. This address allows devices to identify and communicate with each other on a network. The other options in the question, such as Internet Provider Address and measuring the location of Internet packets, are incorrect definitions and do not accurately describe what an IP address is.
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 is a type of software that is specifically created to infiltrate or harm a computer system without the knowledge or consent of the owner. It is designed with malicious intent and can cause various types of damage, such as stealing personal information, corrupting files, or disrupting the normal functioning of the system. This definition distinguishes malware from other types of software, such as antivirus programs or network management software, which have different purposes and functions.
3.
Which one of the following best defines the term Operating System?
Correct Answer
D. All of the above.
Explanation
All of the provided definitions collectively describe an operating system. An operating system (OS) is software that manages the hardware and software interface of a computer, allowing users to run applications. It also acts as the master control program, managing a computer's internal functions and providing control over operations and the file system. Examples include Microsoft Windows® and Apple MacOS®.
4.
Which one is not an output device?
Correct Answer
D. Keyboard
Explanation
An output device is a hardware device that is used to display or transmit data from a computer to the user or another device. In this case, the keyboard is not an output device as it is used for inputting data into the computer, rather than displaying or transmitting data. The printer, monitor, and modem are all examples of output devices as they are used to either display or transmit data from the computer.
5.
One MB is equal to:
Correct Answer
D. 1024KB
Explanation
One megabyte (MB) is equal to 1024 kilobytes (KB). In computing, data is typically measured in binary terms, where 1 kilobyte (KB) equals 1024 bytes, and similarly, 1 megabyte (MB) equals 1024 kilobytes (KB). This is different from the decimal system, where 1 megabyte would be equal to 1,000 kilobytes, but in most computing contexts, the binary system is used.
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 because these three file extensions (.jpg, .bmp, and .tiff) are commonly used for graphics files. The other file extensions (.nfo and .ogg) are typically used for other purposes such as information or audio files, respectively.
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 in the list that is a valid URL. The other options are an email address, a local directory 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 the 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 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 an internet service.
Explanation
A modem is a device that enables a computer to connect to the internet service. It acts as a bridge between the computer and the internet service provider, allowing the transmission of data over telephone or cable lines. Modems convert the digital signals from the computer into analog signals that can be transmitted over the phone lines, and vice versa. This enables users 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 copied or cut content into a document or application. By pressing Ctrl + V, the selected content from the clipboard is inserted at the current cursor position. This shortcut is widely recognized and used across various operating systems and software applications.
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 the software that manage computer hardware and software resources and provide services for computer programs. DOS, Windows, and LINUX are all examples of operating systems.
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. It is responsible for carrying out calculations, moving data, and processing information. The CPU is the component that executes instructions and performs the majority of the computer's tasks. It is a crucial part of the computer's hardware that determines its overall performance and speed.
13.
What does "www" stand for?
Correct Answer
C. World Wide Web
Explanation
The correct answer is "World Wide Web." The acronym "www" stands for World Wide Web, which is a system of interconnected documents and resources that can be accessed via the Internet. It is a global information space where users can navigate through websites and access various types of content such as text, images, videos, and more. The World Wide Web revolutionized the way information is shared and accessed, becoming an essential tool in our daily lives.
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 to a network, allowing the computer to send and receive data. NICs are commonly used in desktop computers, laptops, and servers to enable internet connectivity and network communication.
15.
What is this computer component?
Correct Answer
B. CPU
Explanation
The correct answer is CPU. The CPU, or Central Processing Unit, is a computer component responsible for executing instructions and performing calculations. It is often referred to as the "brain" of the computer, as it carries out the majority of the processing tasks. RAM, or Random Access Memory, is a type of computer memory that temporarily stores data that the CPU needs to access quickly. The hard disk is a storage device used to store data long-term, while the motherboard is the main circuit board that connects and allows communication between all the other components of the computer.
16.
What is this computer component?
Correct Answer
C. Chassis
Explanation
The correct answer is Chassis. A computer chassis, also known as a computer case or tower, is the enclosure that houses all the internal components of a computer. It provides physical protection and support for the components and also helps in heat dissipation. The chassis typically includes slots for connecting peripheral devices such as optical drives and USB ports. It is an essential component that holds everything together and provides the structure for the computer system.
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 and access the internet wirelessly. It acts as a central hub, transmitting data between the internet and the connected devices. This device is commonly used in homes and offices to provide Wi-Fi connectivity to laptops, smartphones, and other devices. It is different from a modem, which is responsible for connecting to the internet service provider, and a video card or motherboard, which are components of a computer.
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 states that the function of this device is to store large amounts of data in a computer system, and that the data is retained on this device even when the computer is turned off. This suggests that the device being referred to is a type of non-volatile storage, such as a hard disk drive or solid-state drive, which can store data even without power. This type of storage is commonly used in computers to store files, programs, and other data that need to be accessed even after the computer is shut down.
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 for measuring the speed of data transfer over a network. It represents the number of megabits (1 million bits) that can be transmitted in one second. This unit is used to quantify the bandwidth or throughput of a network connection, indicating how quickly data can be transmitted from one point to another. Other options such as Megabytes, Bits, and Megahertz are not specifically used to measure network speed, making them incorrect choices.
20.
Bandwidth:
Correct Answer
B. A measurement of how much information can be carried in a given 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 period, usually 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. The correct answer accurately describes the concept of bandwidth in the context of data transfer over communication links.
21.
Download:
Correct Answer
D. When data is received on your PC. This includes, but is not limited to, viewing web pages, receiving an e-mail, watching videos, getting movies, getting music and email attachments.
Explanation
This answer correctly identifies the scenario in which a unit of information or computer storage is equal to either 1,024 bytes or 1,000 bytes. Specifically, it states that when data is received on your PC, such as viewing web pages, receiving emails, watching videos, getting movies, getting music, and email attachments, the unit of information or computer storage is relevant.
22.
Ping:
Correct Answer
B. A computer network tool is 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 network utility tool that uses the Internet Control Message Protocol (ICMP) to test the reachability of a host on an IP network. It sends echo request messages to the target host and waits for an echo reply. This helps determine whether the host is reachable and measures the round-trip time for messages sent from the originating host to the destination. It can also be used to diagnose issues with the Network Interface Card (NIC).
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 in 2000 and was designed for home users. Windows ME introduced several new features and improvements, such as System Restore, Windows Movie Maker, and improved multimedia capabilities. However, it was not as stable or popular as its predecessor, Windows 98, and was quickly replaced by Windows XP.
24.
Which of the following is not an internet browser?
Correct Answer
D. Thunderbird
Explanation
Thunderbird is not an internet browser; it is an email client developed by Mozilla. While Safari, Firefox, and Opera are all popular internet browsers used to access and navigate the internet, Thunderbird is specifically designed for managing and sending email messages.
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 as a project by the Advanced Research Projects Agency (ARPA) of the US Department of Defense in the 1960s. It was known as ARPANET and was designed to create a network that could withstand a nuclear attack. Over time, ARPANET evolved into the internet that we use today. While Bill Gates, Steve Jobs, and Albert Einstein are all notable figures in their respective fields, they were not directly involved in the invention of the internet.