Structured Programming Quiz

Who was the computer scientist that disliked the way a programme's code would jump around sequentially?

• Alan Turing

• Edsger Wybe Dijkstra

• Ada Lovelace

• Charles Babbage

Answer explanation

Edsger Wybe Dijkstra was known for his criticism of the Goto statement, which caused code to jump around non-sequentially, making programs harder to understand and maintain. He advocated for structured programming instead.

What term did programmers coin to describe the difficulties of following the logic in unstructured code?

• Noodle code

• Spaghetti code

• Pasta code

• String code

Answer explanation

The term 'spaghetti code' describes unstructured code that is tangled and difficult to follow, resembling a plate of spaghetti. This term highlights the challenges programmers face when dealing with poorly organized code.

What are the three basic control structures in structured programming?

• Sequence, selection, and repetition

• Loop, condition, and function

• Input, process, and output

• Start, stop, and pause

Answer explanation

The three basic control structures in structured programming are sequence (executing statements in order), selection (making decisions), and repetition (looping through code). This makes 'Sequence, selection, and repetition' the correct choice.

What are control structures also called?

• Code blocks

• Code lines

• Code loops

• Code functions

Answer explanation

Control structures are also known as code blocks because they define sections of code that control the flow of execution. This term emphasizes the grouping of statements that execute under certain conditions.

What is the purpose of the programme shown in Figure 4.18?

• To calculate the sum of two numbers

• To print out stars

• To sort a list of names

• To find the largest number in a list

Answer explanation

The program's purpose is to print out stars, as indicated by its functionality. The other options involve calculations or sorting, which are not relevant to the program shown in Figure 4.18.

What is the challenge in the Blockly Maze fun challenge?

• To solve mathematical equations

• To master control structures using visual coding

• To write essays on programming

• To create a new programming language

Answer explanation

The Blockly Maze fun challenge focuses on mastering control structures through visual coding, allowing users to learn programming concepts in an interactive way, rather than solving equations or writing essays.

What should you do after copying the right-hand Python version of the programme?

• Delete it immediately

• Modify it to print a different pattern

• Use it to hack into systems

• Translate it into another language

Answer explanation

After copying the right-hand Python version, the best action is to modify it to print a different pattern. This allows for creativity and learning, rather than deleting it or using it for unethical purposes.

What is the main goal of the Blockly Maze challenge?

• To learn basic arithmetic operations

• To master control structures in programming

• To improve typing speed

• To understand colour theory

Answer explanation

The main goal of the Blockly Maze challenge is to master control structures in programming. This involves using loops and conditionals to navigate the maze, which helps learners understand fundamental programming concepts.