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Question 1 Report
What does an Operating System do?
Answer Details
An operating system (OS) is a software program that manages a computer's hardware and software resources. Simply put, it acts as a bridge between the computer's hardware and the applications you run on it. An operating system is responsible for several important tasks, including: - Memory Management: It manages the computer's memory and makes sure that programs are running efficiently and that there's enough memory available when you need it. - File Management: It keeps track of all the files on the computer and organizes them in a way that makes it easy for you to find what you need. - Application Management: It launches and runs the applications you want to use and ensures that they run smoothly and don't interfere with each other. In short, an operating system is like a traffic cop for your computer, making sure that everything runs smoothly and efficiently.
Question 2 Report
From where can the name of a user account be changed?
Answer Details
The name of a user account can be changed from the Control Panel in most operating systems, including Windows and macOS. In Windows, you can access the Control Panel by clicking on the Start menu and selecting "Control Panel" from the list of options. Once in the Control Panel, you can navigate to the "User Accounts" section and select the user account whose name you want to change. From there, you can click on the "Change your account name" option and enter the new name for the account. Similarly, in macOS, you can access the System Preferences by clicking on the Apple menu and selecting "System Preferences" from the list of options. Once in the System Preferences, you can navigate to the "Users & Groups" section and select the user account whose name you want to change. From there, you can click on the "Full Name" field and enter the new name for the account. In summary, the name of a user account can be changed from the Control Panel or System Preferences of your operating system. The exact steps to do so may vary slightly depending on the operating system, but in general, you can navigate to the "User Accounts" or "Users & Groups" section and select the account whose name you want to change.
Question 3 Report
The logical structure of the database can be depicted through its ______
Answer Details
The logical structure of a database can be depicted through its data model. A data model is a conceptual representation of data and the relationships between data elements in a database. It defines the structure of the database, including tables, columns, and the relationships between them. The data model can be thought of as a blueprint or a map for the database, showing how data is organized and how it can be accessed. It is an abstract representation of the database, separate from the specific software or hardware used to implement it. By using a data model, designers and developers can ensure that the database is structured in a logical and consistent way, which can improve performance, scalability, and ease of use.
Question 4 Report
Which part of a laptop serves the same function as a mouse?
Answer Details
The touchpad of a laptop serves the same function as a mouse. A touchpad is a flat surface on the laptop that you can slide your finger on to move the cursor on the screen. Just like a mouse, you can use the touchpad to select, click, and scroll. It provides an alternative to using a traditional mouse for navigation on the laptop.
Question 5 Report
A light sensitive device that converts drawing, printed text or other images into digital form is
Answer Details
The device that converts drawing, printed text or other images into digital form is called a scanner. A scanner works by using a light-sensitive sensor that captures the image of the document or picture being scanned. The image is then converted into a digital format, which can be saved to a computer or other digital storage device. Scanners are commonly used for a variety of purposes, such as scanning important documents, digitizing old family photos, and creating digital copies of artwork or other visual media. They are particularly useful for situations where a physical copy of a document or image is not practical or convenient, such as when sharing information over long distances or storing large amounts of data. Overall, a scanner is a valuable tool for anyone who needs to convert physical documents or images into digital form for easy access and storage.
Question 6 Report
The Domain name of a website is also its__________
Answer Details
The domain name of a website is also its IP address. Every device that connects to the internet, including websites, is assigned a unique Internet Protocol (IP) address, which is a numerical label. However, remembering a long string of numbers is difficult, so domain names were created to serve as more memorable and recognizable names for websites. When you type a domain name into your web browser's address bar, your browser sends a request to a Domain Name System (DNS) server, which translates the domain name into its corresponding IP address. The IP address is then used to locate the website's server on the internet and retrieve the website's content, which is then displayed in your browser. So, while the domain name is what we typically use to identify a website, it ultimately maps to its underlying IP address, which is used to connect to the website's server and retrieve its content.
Question 7 Report
The combination of the arithmetic and logic units, as well as the ______________ unit makes up the central processing unit.
Answer Details
The combination of the arithmetic and logic units, as well as the control unit makes up the central processing unit (CPU). A CPU is the "brain" of a computer. It is responsible for executing instructions and performing calculations. The arithmetic and logic units (ALU) are the parts of the CPU that perform mathematical operations, such as addition, subtraction, multiplication, and division, as well as logical operations, such as AND, OR, and NOT. The control unit is responsible for controlling the flow of data and instructions within the CPU and between the CPU and other parts of the computer, such as memory and input/output devices. It fetches instructions from memory, decodes them to determine what operation to perform, and then directs the ALU to perform the operation. In summary, the combination of the ALU and control unit makes up the CPU, which is responsible for processing data and instructions and performing calculations in a computer.
Question 8 Report
__________________ is the conversion of computer data from one format to another.
Answer Details
The correct answer is "data conversion." Data conversion refers to the process of changing the format of computer data from one type to another. This may involve converting data from one file format to another, such as converting a document from Microsoft Word format to PDF. It can also involve converting data from one data type to another, such as converting a string of text to a numerical value. Data conversion can be important for many reasons, such as ensuring compatibility between different software programs, preserving data in a usable format over time, and improving the efficiency of data processing. For example, converting data to a more efficient format can reduce the amount of storage space needed, which can be important when dealing with large amounts of data. In summary, data conversion is the process of changing the format or type of computer data to make it usable in different contexts or more efficient to process.
Question 9 Report
Microsoft word serves the purpose of ________
Answer Details
Microsoft Word serves the purpose of creating documents, which can be anything from simple letters or memos to complex reports, resumes, or even books. It provides a user-friendly platform for users to write, edit, format, and style text, as well as insert images, tables, and other elements to enhance the document's appearance and functionality. Microsoft Word is a popular word processing software used in a wide range of industries, including education, business, and personal use. It allows users to save their documents on their computer or in the cloud, making it easy to access, edit, and share their work from anywhere. Overall, Microsoft Word is a powerful tool for anyone who needs to create or manage written content.
Question 10 Report
Fire fox is an example of __________
Answer Details
Firefox is an example of application software. Application software is a type of software that is designed to perform specific tasks for the user, such as creating documents, browsing the web, sending emails, etc. In other words, it is a program that is used to accomplish specific tasks and is meant to be used by the end-user, as opposed to system software, which is designed to run the computer itself and support the application software. Firefox is a web browser, which is a type of application software that allows users to access, browse and interact with websites on the Internet.
Question 11 Report
CPU stands for ________________.
Answer Details
CPU stands for Central Processing Unit. It is the primary component of a computer system that carries out instructions of a computer program. The CPU is often referred to as the "brain" of the computer, as it performs the majority of the calculations and operations that are necessary for the computer to function. The CPU is responsible for fetching instructions from the computer's memory, decoding those instructions, executing them, and then storing the results back in memory. It is made up of several sub-components, including the arithmetic logic unit (ALU) which performs mathematical operations, and the control unit (CU) which manages the flow of data and instructions within the CPU and to other parts of the computer system.
Question 12 Report
What is a computer file.
Answer Details
A computer file is a place on a computer where information is stored in a package. A file can contain many different types of information, including text, images, audio, video, and executable programs. The information in a file is organized in a specific format, and the file can be opened and edited using appropriate software. For example, a text file contains plain text, while a Word document file contains formatted text and other elements like images and tables. A file is often saved with a specific name and extension that identifies the type of file and the type of information it contains. The extension is the part of the file name that comes after the dot, such as ".txt" for a plain text file or ".docx" for a Microsoft Word document file.
Question 13 Report
What is the major purpose of application software?
Answer Details
The major purpose of application software is to help people perform specific tasks. It provides user-friendly interface to interact with computer systems and accomplish tasks such as word processing, creating spreadsheets, managing databases, playing games, and much more. In short, it is designed to make the user's work easier and more efficient, allowing them to accomplish their work goals with the help of the computer.
Question 14 Report
For what does WAN stand?
Answer Details
WAN stands for Wide Area Network. A network is a collection of devices (like computers, printers, and servers) that are connected together to communicate and share resources. A WAN is a type of network that covers a large geographic area, such as a city, a country, or even the whole world. Unlike a Local Area Network (LAN), which is limited to a small area like a home or office building, a WAN connects devices over a larger distance using a variety of technologies such as telephone lines, fiber optic cables, and satellite links. WANs are used by organizations to connect their different offices and branches in different locations, and to provide access to the internet or cloud-based services. For example, a company with offices in New York and London might use a WAN to connect the two locations and allow employees to share data and resources.
Question 15 Report
Files that maintain the hierarchical structure of the file system.
Answer Details
The correct answer is "Directories." Directories are special files that organize the hierarchical structure of the file system by grouping related files together into named collections. They act like folders, allowing users to easily locate and access the files they need. Each directory can contain other directories (sub-directories) and files. For example, in a Windows system, the "C:\Users" directory contains a sub-directory for each user account on the computer, and each user account directory contains sub-directories for documents, pictures, music, etc. In short, directories allow us to maintain a structured and organized file system.
Question 16 Report
CRACKING comes under _________
Answer Details
CRACKING is a type of computer crime. It refers to the unauthorized access and manipulation of computer systems or networks. Cracking is usually done by malicious individuals with the intention of stealing information, causing damage or disrupting services. It is different from hacking, which is the process of finding vulnerabilities in computer systems in order to improve their security. Crackers use a variety of techniques, including exploiting security weaknesses, stealing passwords, and installing malware. Cracking is a serious offense that can result in legal consequences, including fines and imprisonment. To protect against cracking, it is important to use strong passwords, keep software up-to-date, and use antivirus software.
Question 18 Report
Which of the following is termed as the minimum error code?
Answer Details
Gray codes are less error-prone because they only change in one-bit position at a time. Hence, they are considered as the minimum error code.
Question 19 Report
What is the shortcut key to "undo" last action on a Microsoft word page?
Answer Details
The shortcut key to "undo" the last action on a Microsoft Word page is "Ctrl + Z". When you perform an action on a Word page, such as typing, deleting, formatting or copying text, you can undo that action by using the "Ctrl + Z" keyboard shortcut. This will revert the page to the state it was in before the action was performed. For example, if you accidentally delete a sentence, you can press "Ctrl + Z" to undo the deletion and restore the sentence. The "Ctrl + Z" shortcut is a very useful and commonly used feature in Microsoft Word as it allows you to quickly correct mistakes without having to manually undo each action. It can be used multiple times to undo several actions in a row. If you want to redo an action that was previously undone, you can use the "Ctrl + Y" keyboard shortcut. In summary, the "Ctrl + Z" keyboard shortcut is used to undo the last action performed on a Microsoft Word page, allowing you to easily correct mistakes and restore the previous state of the page.
Question 20 Report
Which key deletes text?
Answer Details
The key that deletes text is the backspace key. When you type, the characters you enter are added to the right of the cursor, which shows you where the next character will be inserted. If you want to delete a character, you can move the cursor to the left of that character using the arrow keys, and then press the backspace key. This will remove the character to the left of the cursor. You can also use the backspace key to delete a selection of text. To do this, you first need to highlight the text you want to delete by clicking and dragging the cursor over it. Once the text is highlighted, you can press the backspace key to delete it. In summary, the backspace key is used to delete characters to the left of the cursor or to delete a selected portion of text.
Question 21 Report
The actual physical network of wires, cables and satellite that connects computers and resources throughout the world is the _______________
Answer Details
The actual physical network of wires, cables, and satellites that connects computers and resources throughout the world is the Internet. The Internet is a global network of connected devices that enables communication and exchange of information between computers. It enables devices to connect and share resources such as websites, email, files, and other digital content. The Internet uses a variety of communication protocols and technologies, including wired and wireless connections, to facilitate this communication and exchange of information. The Internet is a vital part of our daily lives, providing access to information and enabling us to communicate and collaborate with others from anywhere in the world.
Question 22 Report
Encryption helps with what?
Answer Details
Encryption helps with safe delivery of messages to their destination without being accessed by a third party. Encryption is a process of converting plain text into coded or scrambled text so that only authorized parties who have the key can access and understand the original message. This means that even if an unauthorized person intercepts the message during transit, they cannot read or understand it because it is encrypted. Encryption is commonly used to protect sensitive data such as passwords, credit card numbers, and personal information when it is transmitted over the internet. It also helps to protect confidential business or government communications from hackers, cybercriminals, and other unauthorized third parties. Therefore, encryption helps to ensure that messages are delivered safely and securely to their intended recipients without being accessed or intercepted by unauthorized parties.
Question 23 Report
How many different values can a bit have?
Answer Details
A bit is the smallest unit of digital information in computing, and it can have two possible values: 0 or 1. This is because a bit is used to represent a binary digit, which can be either on or off, true or false, or high or low. So, the answer is 2. To give an example, imagine a light switch that can either be turned on or off. We can use a bit to represent the state of the switch, where 0 represents the switch being off, and 1 represents the switch being on. In this case, a single bit is enough to represent the two possible states of the switch. Similarly, in computing, a single bit is enough to represent two possible states of any digital information.
Question 24 Report
Which type of network is usually contained inside one office building?
Answer Details
The type of network that is usually contained inside one office building is called a Local Area Network or LAN. A LAN is a computer network that connects devices within a relatively small area, such as a single building, office, or campus. It is designed to allow computers and other devices to communicate with each other and share resources, such as printers, files, and internet access. LANs are typically owned and operated by a single organization, such as a business or government agency, and are often built using Ethernet cables or Wi-Fi technology. LANs are used to facilitate communication and data sharing between employees within an office building or other confined area, and are often more secure than other types of networks because they are not connected to the internet. In summary, a LAN is the type of network that you would most commonly find inside one office building.
Question 25 Report
A logic circuit performs ________ functions
Answer Details
A logic circuit performs "processing and controlling" functions. A logic circuit is an electronic circuit that performs a specific logical operation, which is based on the principles of Boolean algebra. It takes one or more digital inputs and produces a digital output based on a set of rules, known as a truth table. The primary function of a logic circuit is to process and control the input signals to produce a desired output signal. In other words, it performs logical operations on the input signals to generate the desired output signal. This makes it a processing and controlling device. For example, a logic circuit can be used to perform a simple logic function, such as a logical AND operation, which takes two input signals and produces an output signal that is true only when both input signals are true. This output signal can then be used to control the behavior of another device or system. In summary, logic circuits are used in a wide variety of electronic devices, such as computers, calculators, and mobile phones, to process and control digital signals, which makes them an essential component of digital technology.
Question 26 Report
In Boolean algebra, the bar sign (-) indicates ....................
Answer Details
The bar sign (-) in Boolean algebra indicates the NOT operation. The NOT operation is a unary operator that negates or inverts a Boolean value. If the input value is "true", the output of the NOT operation will be "false". And if the input value is "false", the output of the NOT operation will be "true". In essence, the NOT operation changes the truth value of the input. This operation is also sometimes referred to as the "complement" or "inverse" operation.
Question 27 Report
In which situation does running application remain active?
Answer Details
When a computer application is running, it is stored in the computer's memory, which allows it to continue functioning as long as it is needed. In the case of logging off, shutting down, or rebooting the computer, all applications currently running on the system are closed or terminated. Therefore, the running application would not remain active in any of these situations. However, in the case of a user switching, the running application can remain active. This is because when a user switches on a computer that is running, the operating system creates a new user session while keeping the current user's session active. In this scenario, the running application would continue to function within the current user's session, while the new user session would be independent and have its own set of applications and processes. Therefore, the running application would remain active when the user is switched.
Question 28 Report
Sensitive data can be protected from prying eyes using _________
Answer Details
Sensitive data can be protected from prying eyes using encryption. Encryption is the process of converting data into a code or a form that cannot be easily understood without a special key or password. When data is encrypted, it is scrambled and transformed into a form that is not easily recognizable. The only way to unlock or decrypt the data is to have the specific key or password that was used to encrypt it. This means that even if someone gains unauthorized access to the encrypted data, they will not be able to read or understand it without the key or password. Encryption can be applied to many types of sensitive data, including passwords, financial information, personal data, and sensitive documents. It can be used to protect data both while it is being transmitted (e.g., through email or messaging) and while it is being stored (e.g., on a computer or server). In summary, encryption is a powerful tool for protecting sensitive data from prying eyes, by converting it into a code or a form that is not easily recognizable without the specific key or password that was used to encrypt it.
Question 29 Report
A computer can't boot if it does not have ____________
Answer Details
A computer cannot boot if it does not have an operating system (OS). An operating system is the most basic software that runs on a computer and is responsible for managing and coordinating all the activities of the computer hardware and software. It is the first program that runs when the computer starts up, and it is responsible for initializing the hardware and loading other software, such as device drivers and applications. Without an operating system, the computer would not be able to perform any useful tasks, as it would not have the necessary software to control and manage its hardware components. Examples of popular operating systems include Microsoft Windows, macOS, and Linux.
Question 30 Report
An Operating System is a type of?
Answer Details
An Operating System (OS) is a type of system software. It is a program that manages the hardware and software resources of a computer, and provides a platform for other software applications to run on. The OS controls the input/output operations, manages memory and storage resources, and schedules tasks to be executed by the computer's processor. Examples of common operating systems include Windows, macOS, Linux, and Android.
Question 31 Report
Java is a ______ language
Answer Details
Java is a high-level programming language. This means that it is designed to be easy to read and write for humans, and provides a higher level of abstraction from the hardware than lower-level languages. High-level languages like Java typically have built-in libraries and features that allow developers to write code more efficiently and focus on solving problems rather than worrying about low-level details like memory management or machine architecture. Additionally, high-level languages are typically platform-independent, which means that Java code can be compiled and run on different operating systems without needing to be rewritten.
Question 32 Report
In Microsoft Excel, sheet tabs can be renamed by ______
Answer Details
Sheet tabs in Microsoft Excel can be renamed by double-clicking on the sheet tab and entering the new name. To do this, simply click on the sheet tab that you want to rename and wait for it to become active. Then, double-click on the tab, and the name will become editable. Type in the new name you want for the sheet and press the Enter key or click outside the tab to save the changes.
Question 33 Report
A 2-input gate that can be used to pass a digital waveform unchanged at certain times and inverted at other times is ___________
Answer Details
The 2-input gate that can be used to pass a digital waveform unchanged at certain times and inverted at other times is the XOR (exclusive OR) gate. An XOR gate has two input signals and one output signal. The output is HIGH (1) if the two input signals are different, and LOW (0) if the two input signals are the same. In other words, an XOR gate produces an output signal that is the "exclusive or" of its two input signals. When one of the input signals is held at a constant logic level (either HIGH or LOW), the XOR gate can be used to pass the other input signal unchanged or inverted, depending on the value of the constant signal. If the constant signal is HIGH, the output signal will be inverted; if the constant signal is LOW, the output signal will be unchanged. This property of the XOR gate makes it useful in digital electronics for a variety of applications, such as data encryption, error detection and correction, and clock synchronization.
Question 34 Report
What is the function of firewall?
Answer Details
A firewall is a type of cybersecurity tool that helps protect a computer or network from unauthorized access or malicious activity from the internet. Think of a firewall as a security guard that stands at the entrance to your network, examining all incoming and outgoing traffic. It examines each packet of data to see if it meets certain criteria, such as the source and destination of the data, and the type of data being transmitted. If the packet meets the criteria, it's allowed to pass through the firewall and reach its destination. If it doesn't meet the criteria, the firewall blocks the packet, preventing it from entering your network. A firewall can help prevent attacks like hacking, malware infections, and other cyber threats that could compromise your data or network. Firewalls can also be configured to filter out certain types of traffic or limit access to certain resources, providing an additional layer of protection for your network. In summary, a firewall is a vital cybersecurity tool that acts as a barrier between your network and the internet, helping to keep your data and devices safe from cyber threats.
Question 35 Report
A half byte is known as ________.
Answer Details
A half byte is known as a nibble. A byte is a unit of digital information in computing, typically consisting of 8 bits. A nibble, on the other hand, is half of a byte, consisting of 4 bits. This unit is often used in computer architecture and data representation, especially when referring to memory addresses or data manipulation.
Question 36 Report
.......... provides total solutions to reduce data redundancy, inconsistency, dependence and unauthorized access of data
Answer Details
A DBMS (Database Management System) provides comprehensive solutions to reduce data redundancy, inconsistency, dependence, and unauthorized access of data. Data redundancy refers to the duplication of data in a database, which can lead to inconsistencies and take up unnecessary storage space. A DBMS helps to eliminate data redundancy by ensuring that each piece of data is stored only once and is consistently maintained. Data inconsistency refers to the occurrence of conflicting data in a database, which can lead to problems when trying to make decisions based on the data. A DBMS helps to maintain data consistency by enforcing constraints and rules that ensure that data is entered consistently and accurately. Data dependence refers to the relationship between different pieces of data in a database. A DBMS helps to reduce data dependence by allowing data to be stored in separate tables and establishing relationships between those tables. This reduces the risk of changes in one table affecting the data in another table. Finally, a DBMS provides security features to prevent unauthorized access to the data stored in the database. This includes controlling access to the database through user authentication and authorization, as well as ensuring that sensitive data is encrypted to protect it from being accessed by unauthorized individuals. In short, a DBMS provides a centralized and organized way to store, manage, and secure data to ensure its accuracy, consistency, and security.
Question 37 Report
The acronym from DATABASE MANAGEMENT SYSTEM is ________________
Answer Details
The acronym for DATABASE MANAGEMENT SYSTEM is DBMS, which stands for "Database Management System". A database is an organized collection of data that can be stored, accessed, and managed easily. However, managing large amounts of data can be complicated, which is where a Database Management System comes in. A DBMS is a software system that allows users to create, modify, and manipulate databases. It provides tools to organize and store data efficiently, as well as tools to retrieve and analyze that data. In summary, DBMS is an abbreviation for Database Management System, a software system used to manage and organize data efficiently.
Question 38 Report
Which of these application packages is mostly used by computer users?
Answer Details
Out of the options given, Microsoft Excel and Microsoft Word are the two most commonly used application packages by computer users. Microsoft Excel is a spreadsheet application that allows users to create, edit, and analyze numerical data in a structured manner. It is widely used by businesses and individuals for tasks such as financial analysis, budgeting, data management, and statistical analysis. Microsoft Word, on the other hand, is a word processing application used for creating and editing text-based documents. It is used for a wide range of purposes, such as writing reports, letters, resumes, and academic papers. While CorelDraw is a graphic design software used for creating vector graphics and Ms Access is a database management system used for storing, managing and retrieving data, they are not as commonly used as Microsoft Excel and Microsoft Word in day-to-day computer usage.
Question 39 Report
In any software package, which of the following versions represents a major improvement on the previous version?
Answer Details
In any software package, a new version number that increases the whole number before the decimal point represents a major improvement on the previous version. Therefore, the versions that represent a major improvement on the previous version is 2.0.
In software development, version numbers are used to identify different releases or iterations of a program. A new version number is typically assigned when significant changes or improvements are made to the software. The first number before the decimal point in a version number is known as the major version number. When this number increases, it indicates that there has been a significant change or improvement in the software that warrants a new release.
The second number after the decimal point is the minor version number, which typically represents smaller changes or bug fixes. Therefore, 2.0 is a major releases that represent significant improvements over the previous version, while 1.0, 1.5 and 2.5 are minor releases that represent smaller changes or bug fixes.
In summary, a new software version number that increases the major version number before the decimal point represents a major improvement on the previous version, indicating that significant changes or improvements have been made to the software.
Question 40 Report
What controls the way in which the computer system function and provides a means by which users can interact with the computer.
Answer Details
The operating system controls the way in which a computer system functions and provides a means by which users can interact with the computer. The operating system (OS) is a type of software that manages and controls the hardware and software resources of a computer system. It provides a common platform for different types of applications to run on the computer and enables users to interact with the computer by providing a graphical user interface (GUI) or a command line interface (CLI). The operating system performs various tasks, such as managing the computer's memory, processing input and output requests, controlling peripheral devices, and providing a file system for storing and retrieving data. It also provides security features, such as user authentication and access control, to protect the computer system from unauthorized access. The operating system is a fundamental component of any computer system, and it enables users to interact with the computer by providing a user-friendly interface. It acts as an intermediary between the hardware and the applications, making it possible for different programs to run on the same computer and share resources such as memory, CPU time, and disk space. In summary, the operating system is the software that controls the way in which a computer system functions and provides a means by which users can interact with the computer, by managing and controlling the hardware and software resources of the system and providing a platform for different types of applications to run.
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