End of Year 8 (EOY8) Computer Science Practice Exam

These questions are part of the practice quiz. Start practicing

• Which data type matches the data value False (unquoted)?
• Which operator means greater than or equal to?
• What is the value of 2 to the power of 3?
• Which term describes a set of instructions that must be followed one after another in a specific order?
• Which of the following is true about software?
• The operator != stands for which relation?
• Which statement about bytes is true?
• Which option best describes an algorithm?
• How many bytes are in 1 gigabyte (GB)?
• Which statement correctly matches a static and a dynamic data structure?
• What does the operator // denote?
• In a flowchart, which symbol is used to represent a decision point?
• Which data type is used for boolean flags?
• One byte consists of how many bits, and what are the common units used for text file size?
• In the typical linear search pseudocode, what value is returned if the target is not found?
• Which of the following are examples of primary memory?
• How many bits are in a byte?
• In a flowchart, which shape is typically used to denote an operation step?
• In a flowchart, which shape marks the start or end of the process?
• Which statement about RAM is true?
• What does Two Factor Authentication stand for?
• Which operator checks for equality between two values?
• Which statement best defines a variable?
• Compute binary addition: 11 plus 01.
• What is a variable in programming?
• Convert the decimal number 13 to binary.
• What is the ASCII value of the character 'A'?
• What are the key parts of a URL?
• How many bytes are in a kilobyte (KB)?
• How many bits are in a byte?
• Convert the binary number 10010 to decimal.
• What is authentication used for?
• What data type is the literal -11?
• Which operator yields the remainder after division?
• Which term describes a visual method for describing algorithms with symbols linked by arrows?
• Which of the following statements about representations is true?
• In a flowchart, which shape represents input or output operations?
• Where do local variables exist in most programming languages?
• What is plaintext?
• Translate the following natural language task into code-like logic: 'Calculate the sum of all even numbers in a list'.
• What is a code comment and why is it important for maintenance?
• What is a byte, and how many distinct values can 1 byte represent?
• In conditional statements, boolean values are used to determine which path to take.
• Which term best describes deception to obtain information by posing as someone you know?
• In binary, what does the digit 1 represent?
• Which data type matches the data value True (unquoted)?
• Which statement best defines hardware?
• ASCII represents how many characters?
• What is decomposition in computational thinking?
• What is phishing in the context of cybersecurity?
• In two-factor authentication, what is typically used as the second factor?
• Name generator attack
• Authentication
• Which of the following is not listed as a Boolean operator in the material?
• In zero-based indexing, what index refers to the first element of an array?
• Which flowchart symbol is commonly used to depict a processing step (an action or operation)?
• What is the modulo operation and what is 7 mod 3?
• Which statement is true about a NOT gate?
• The data value "False" is of which type?
• What is the 7-bit binary representation of the decimal number 74?
• What does the Boolean data type store?
• Which of the following best differentiates integers, strings, and booleans?
• In a binary number, which bit is the most significant?
• What does the String data type store?
• Which statement correctly describes the difference between text and binary files?
• Two Factor Authentication (2FA)
• Which statement best describes encryption?
• Which of the following is not a main stage of the Software Development Life Cycle?
• How many bits per character does ASCII use?
• Which of the following is NOT an example of personal data?
• Phishing Attack
• Which of the following is software?
• Which of the following is hardware?
• In the Software Development Life Cycle, which stage comes directly after design?
• What is the operator - used for?
• Which symbol marks the start or end of a flowchart?
• What is the largest vulnerability in any computer system?
• What is a primary key in a relational database?
• Which data type would you use to store a person's name?
• What is the binary sum of 0 and 0?
• What data type does the unquoted value False have?
• Which option lists four basic data types?
• Which of the following is an example of metadata for a digital image?
• Which statement lists the standard Boolean operators?
• Which statement best describes non-volatile memory?
• Which operator checks for less than or equal to?
• Which data type matches the string literal "False"?
• How many bits are in two bytes?
• Which memory retains data after power is removed?
• Which operator is used to perform integer division (discarding any remainder)?
• Which statement describes static and dynamic data structures correctly and gives an example?
• Which option is NOT a basic data type listed in the material?
• Which statement best describes encryption in simple terms?
• Explain truth values of the AND and OR operators with examples.
• Which data type matches the string literal "True" used as text?
• Which statement about text vs binary files is accurate?
• Which statement about a static data structure is accurate?
• If you increase the resolution of an image while keeping colour depth constant, what happens to the file size?
• How is resolution defined for a digital image?
• How do you calculate the file size of an image?
• Which statement best differentiates an integration test from a unit test?
• In a flowchart, which shape represents a decision point where branches occur?
• In a NOT truth table, what is the result of NOT True?
• Biometric password is considered safer because:
• Which description correctly identifies a NOT gate?
• Compute binary addition: 1001 plus 0011.
• In a flowchart, what does a flow line show?
• Which data type stores decimal numbers?
• What decimal value does the binary number 10000000 represent?
• Which statement best describes a modular design approach?
• Which statement is true about colour depth?
• Denary is another term for decimal.
• Which statement best describes a wide area network (WAN) compared to a local area network (LAN)?
• Which statement best describes metadata for a digital image?
• Boolean logic uses how many truth values?
• Which description correctly identifies an AND gate?
• What is the difference between a flowchart and pseudocode, and when is each useful?
• What does the Real/Float data type store?
• A computer system typically handles four basic operations. Which four actions are they?
• Which code snippet prints 'Adult' when age is 18 or more, otherwise prints 'Child'?
• Which term describes the density of pixels in an image?
• Is secondary storage volatile or non-volatile?
• Which statement accurately describes RAM in relation to secondary storage?
• Which description correctly identifies an OR gate?
• Why is bubble sort inefficient for large data sets?
• What data type is the data "99" (with quotation marks)?
• In a NOT truth table, what is the result of NOT False?
• What is a string in programming and how do you obtain its length in Python?
• Which data type would be most appropriate to store the whole number 42?
• Which type of loop would you use when you know the exact number of iterations in advance?
• In a flowchart, which shape represents a process?
• What is input validation and why is it important for security?
• Which type of memory loses its contents when power is lost?
• What is a Boolean expression and how is it evaluated using a truth table?
• How many bytes are in 30,000 MB?
• In a relational database table, what is a record?
• Which data type matches the literal "True" (quoted)?
• How would you generate a pseudo-random number in a typical programming language?
• Which of the following is an example of personal data?
• Which of the following is NOT an example of personal data?
• In the described two-factor authentication process, which sequence correctly represents the steps from setup to verification?
• The data value "True" is of which type?
• What is the binary sum of 1 and 1?
• Calculate the binary addition: 1010 plus 0101.
• Which statement best describes a pseudo-random number?
• What does a truth table show in logic?
• Is primary memory volatile, non-volatile, both, or neither?
• Data Protection Act is:
• What is a test case in software testing?
• Why is data validation important in software systems, and which of the following is an example of a validation check?
• Which of the following best describes booleans?
• What is a variable in programming? Choose the best definition and example.
• Social Engineering
• Which operator checks if one value is greater than another?
• Which statement about arrays is true?
• In flowchart terminology, which term refers to the visual description method that uses symbols linked by arrows?
• Which statement describes how a truth table is used for a boolean expression?
• The operator == is used for which comparison?
• Which of the following is an example of a dynamic data structure?
• Boolean logic is best described as what?
• What does the operator <= represent?
• What does a linear search do?
• What is a unit test?
• In programming notation, what does the operator ** represent?
• If A is true and B is false, what is the value of A AND (NOT B)?
• What defines a boundary test?
• Which value is appropriate for a boundary test when a valid input range is 1 to 100 inclusive?
• The operator % returns what?
• What data type does the unquoted value True have?
• Which statement about the Caesar cipher is true?
• Which statement best describes the relationship among integers, strings, and booleans?
• Shouldering is best described as?
• Which symbol indicates the start or end of a process in a flowchart?
• How many arrows can leave a decision shape in a flowchart?
• What is a function and how does it improve code reuse? Provide a simple example signature.
• What is the data type for the data value "Any word"?
• What is abstraction in programming and why is it useful?
• What is the primary purpose of the Domain Name System (DNS)?
• In an AND truth table, what is the output when A = 1 and B = 1?
• What is the role of pseudocode in software development?
• What term describes a 'picture element' in digital images?
• Which data type matches the string literal "False" used as text?
• Which sequence describes how the CPU processes an instruction?
• Which term describes the choice of path through a program based on a condition?
• Which data type matches the data value Any word?
• In an OR truth table, what is the output when A = 0 and B = 0?
• What does volatile memory mean?
• Which term describes the choice of which route to take through a computer program based on a condition?
• Which computer component is responsible for executing instructions?
• What does the Integer data type store?
• Which data type matches the string literal "True"?
• Which operator is used for assignment in many programming languages?
• In the encryption explanation, which statement correctly describes the relationship between plaintext and ciphertext?
• What is Iteration in problem-solving terms?
• Which term describes breaking down complex problems into smaller, easier to solve parts?
• Which operator checks if one value is less than another?
• Personal Data
• Starting with x = 3, and for i from 1 to 3, set x = x + i. What is the final value of x?
• Which statement best describes an IP address?
• What is recursion and why is it often discouraged for beginners?
• With a colour depth of 6 bits per pixel, how many distinct colours are possible?
• What is the main purpose of iteration in problem-solving?
• What does the operator / represent?
• Which of the following is not an example of primary memory?
• In relational databases, what is the role of a foreign key?
• Which component is responsible for executing instructions in a computer?
• What is the purpose of an else-if (elif) clause in conditional statements?
• What data type is the numeric literal 22?
• Which of the following is a valid data validation check for numeric input such as age?
• Which term means breaking down problems into smaller parts?
• Which data type stores True or False?
• What is the primary purpose of debugging?
• What is the operator + used for?
• Overflow error occurs when the number of bits needed exceeds the available bits during binary addition.
• Explain the difference between while and for loops and give an example of each.
• What is the binary sum of 1 and 0?
• What is the operator * used for?
• What is the binary sum of 0 and 1?
• In zero-based indexing, how do you access the first element of an array named arr?
• What is an integration test?
• What is the result of A OR B when A is false and B is true?
• Blagging
• How many kilobytes are in 1,000,000 bytes?
• Which operator would you test to determine if two values are not equal?
• In binary notation, what is a bit?