All 50 questions from the General Certificate of Education (GCE) Computer Studies 2024 Objective paper, with the correct answer and a full explanation for each. Free, no signup needed.
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An automatic system is one that
An automatic system operates or functions with little or no human intervention, often using predefined rules, algorithms, or sensors to perform tasks based on input or conditions.
Which of the following features of information is not important for meaningful decision?
Competitiveness is not typically considered essential for making meaningful decisions, unlike accuracy, completeness, and timeliness.
The microprocessor that controls a washing machine is known as
An embedded computer is a small, specialized computer chip built into a device such as a washing machine to control its functions.
Which of the following statements is true about data?
Data forms the foundation; information builds upon that foundation by adding context, and knowledge represents a higher level of understanding derived from organized information.
Instructions were written computers using
The first generation computers used machine language, also known as first-generation programming languages or low-level languages, consisting of binary code (1s and 0s).
Addition and subtraction of numbers in Abacus are done using
In an abacus, addition and subtraction are performed by moving beads along rods, each representing a specific value.
In using the slide rule, multiplication that goes off the scale can be corrected by the following approaches except
Circular slide rules are not typically used to correct multiplication that goes off the scale; they are designed to perform calculations within their designated scales.
The computer's short-term memory is the
The computer's short-term memory is known as Random Access Memory (RAM), used to store data and instructions currently being used or processed by the CPU.
Which of the following logic devices is considered equivalent gate?
Figure 1 represents an OR gate. In an OR gate, if either or both inputs are high (logic 1), the output will be high (logic 1); if both inputs are low, the output will be low.
Compute the value of the output Z in Figure 1 using the values of X and Y given.
Figure 1 is an OR gate; if either or both inputs are high, the output is high. With X(0011) and Y(0101), OR-ing bit by bit gives 0111.
If the input variable X in Figure 1 is passed through the device in Figure 2 before going into the logic gate in Figure 1, what will be the value of output Z?
Figure 2 is an inverter (NOT gate); it gives the opposite of its input. X(0011) inverted becomes 1100. Feeding 1100 into the OR gate with Y(0101) gives 1101.
If the input variable Y in Figure 1 is passed through the device in Figure 2 before going into the logic gate in Figure 1, compute the resulting value of the output at Z.
If Y(0101) is fed into the NOT gate, the output becomes 1010. Feeding this new value into the OR gate with X(0011), we have 1011.
Using the given values of X and Y for the device in Figure 1, what will be the value of the output Z if it is passed through the device in Figure 2?
If X(0011) and Y(0101) pass through the OR gate (Figure 1), we get 0111. If this output is now passed through the NOT gate (Figure 2), we get 1000.
The part labeled Q in Figure 3 is called
Q represents the memory unit. In a basic computer architecture, the four primary components are input unit, output unit, central processing unit, and the memory unit.
MS Access is an example of a
MS Access is an example of a Database Management System (DBMS), used to create, manage, and manipulate databases.
Which of the following statements explains the fifth of device drivers? They
Device drivers are specialized programs that allow the operating system and other software applications to communicate with hardware devices.
One usefulness of utility software in the computer is
Utility software often includes tools for maintaining and protecting the computer system, such as antivirus programs, disk cleanup tools and system optimization utilities.
Which of the following statements about operating system is false? It
The operating system does not protect the computer from power surges. Protection from power surges is typically handled by hardware devices such as surge protectors.
Debugging in program development is the
Debugging is the process of identifying, analyzing and removing errors or bugs from software code, ensuring the program runs correctly and efficiently.
Identify the flowchart symbol in Figure 4.
What we have in Figure 4 is the decision box. It is used to represent a decision point where the flow can branch based on a yes/no or true/false question.
The flowchart symbol in Figure 4 is used to
It is used to represent a point where a decision must be made. It typically poses a yes/no or true/false question leading to different branches of the flow based on the answer.
Which of the following operations will Last in a program?
The correct order follows the PEMDAS/BODMAS rule: Parenthesis/Brackets first, followed by exponents/orders, Multiplication and Division (left to right), and finally addition and subtraction (left to right). Subtraction is evaluated last among these.
The equation x = p + q(r ÷ s) can be expressed in QBASIC programming as
In QBASIC, the expression x = p + q(r ÷ s) would be equivalent to X = P + Q * (R/S), since multiplication must be explicitly represented with the * operator.
Which of the following statements is true about the rules of flowcharting?
All boxes of flowcharts are connected with arrows to show the logical connection between them.
In computer programming, it is advised to translate source code into intermediate code to
Intermediate code allows the synthesis (code generation) phase of the compiler to be tailored to the target machine architecture, ensuring efficient and optimal translation of the intermediate code to native machine code specific to each platform.
A graphic or text in a document or web page that links to another file or object is referred to as
A graphic or text in a document or web page that links to another file or object is referred to as a hyperlink. Hyperlinks are interactive elements that allow users to navigate between different files or sections within a document by clicking on them.
Instant messages can be sent with little or no time lag using
Chat rooms are online platforms where users can engage in real-time text-based conversations. Messages sent in chat rooms have very low latency, allowing for instant communication.
Which of the following statements is true about preventing phishing?
Clicking on links in emails from untrusted sources is a common method used by phishers to trick users into visiting malicious websites or downloading malware. Avoiding such links significantly reduces the risk of falling victim to phishing attacks.
Which of the following statements is true about star topologies?
Star topology networks are centered around a central device called a hub or switch. All nodes (devices like computers, printers, etc.) are connected directly to this central hub.
An internet user secures his social media account by regularly changing passwords. Which of the following passwords produces the best security?
"WASSCE School Candidates @ 2024" includes a combination of uppercase letters, lowercase letters, numbers and special character (@). Such passwords are considered strong because they are more complex and harder to guess or crack through brute force attacks.
Which of the following statements is true about intranet?
An intranet is a private network that employs internet protocol (IP) and is accessible exclusively by employees or authorized users within an organization. It serves as a secure platform for internal communication.
The art of checking for errors in a Word document before publishing is referred to as
The art of checking for errors in a Word document before publishing is referred to as Proof reading.
Columns in MS Access are referred to as
In Microsoft Access, columns within a table are referred to as fields. Each field defines a specific piece of data such as name, date, number or other types of information that can be stored in a database table.
Which of the following application packages is suitable for making budgets?
Spreadsheet packages are versatile tools that offer necessary features and flexibility to create, manage and analyze budgets effectively in both personal and professional settings.
What happens when a user clicks on the icon in Figure 4 on the Microsoft Excel menu bar?
What we have in figure 5 is a copy icon. The icon allows users to duplicate selected content such as text, images or files. Clicking the copy icon stores the selected content temporarily in the clipboard. Users can then paste this content elsewhere within the same document or into a different location.
New comment can be added to a cell in MS Excel by using the procedure
- Click on the cell where you want to add a comment\n- Go to the Insert tab on the Ribbon\n- Click on Comment under the Insert Tab
What is the function of the Corel Draw Toolbox object shown in Figure 6? It is used to
The tool displayed is the 'Pick tool'. It allows you to select objects on the canvas by clicking on them. Once selected, you can transform objects by grabbing them can resize, rotate or skew them.
Which of the following statements about index is true? It is a data structure
An index is a data structure that improves the speed of data retrieval by enabling lookup of records based on specific columns or fields.
A collection of computer wires used to identify memory location in a computer is
The address bus carries signals that specify the exact memory locations being accessed by the CPU or other components within the computer system.
Read Only Memory (ROM) contains
ROM contains present instructions for operations that are stored permanently and cannot be altered or erased.
What happens when the Shift key is pressed down while deleting a file from the computer? The file is
Normally, when you delete a file without holding down the shift key, the file is moved to the recycle bin where it can be restored if needed. Pressing the shift key ensures that the file is permanently deleted.
Which of the following statements about warm booting is true?
Warm booting involves restarting the operating system without powering off the entire computer system. It reloads the operating system into memory while the system is still running, allowing for a quick restart of the OS without going through the full power-on sequence.
The ASCII character set represents alphabetical and control characters using numeric code ranging from
In ASCII, the numeric codes for characters range from 0 to 127. These codes represent standard characters including letters, digits, punctuation marks and control characters.
Which of the following hard disk drive memory capacities can store the largest size of data?
2TB > 12GB > 240MB > 800KB. 2TB will store the largest size of data while 800KB will store the smallest.
The equivalent of the letter A in the standard ASCII is
Letter A is represented by 65 in ASCII. In binary form, this is equivalent to 01000001.
One example of a file containing reference data which is usually altered is
Price lists often need to be updated regularly to reflect changes in prices of goods or services. Unlike payroll or stock files which may contain less frequently updated information, a price list is dynamic and subject to frequent changes based on market conditions.
Figure 7 represents a procedure to
This typically represents a procedure to transfer files from one device to another.
A user observed that a certain file in a removable storage device changed to a shortcut icon. This implies that
This means the shortcut icon serves as a link to the original file, which might have been moved or is stored elsewhere on the storage device.
Set of characters used to authenticate a computer user is called
Passwords are used to verify the identity of a user and grant access to computer systems, accounts or specific resources.
Which of the following statements about firewall is correct?
A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It acts as a barrier between a trusted internal network and untrusted external networks.
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