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The variable x is assigned a value using the statement: x ← LEN(State) Using Figure 1, what is the value of x? Shade one lozenge - AQA - GCSE Computer Science - Question 1 - 2023 - Paper 1
Question 1
The variable x is assigned a value using the statement: x ← LEN(State) Using Figure 1, what is the value of x? Shade one lozenge. What is the result of concatenat... show full transcript
Worked Solution & Example Answer:The variable x is assigned a value using the statement: x ← LEN(State) Using Figure 1, what is the value of x? Shade one lozenge - AQA - GCSE Computer Science - Question 1 - 2023 - Paper 1
Step 1
What is the value of x?
Answer
To find the value of x, we need to determine the length of the variable 'State' as given in the statement x ← LEN(State). If the value of 'State' is 'California' (for example), then x would equal 10, since there are 10 characters in 'California'. Depending on the actual content of 'State' presented in Figure 1, shade the corresponding lozenge.
Step 2
What is the result of concatenating the contents of the variables city and landmark in Figure 1?
Answer
The concatenation of the variables 'city' and 'landmark' should include a space (if applicable) or be directly joined. Assuming 'city' = 'San Francisco' and 'landmark' = 'Alcatraz Island', the result will be 'San Francisco Alcatraz Island'. Based on the options given, shade the correct lozenge.
Step 3
What is the value of y?
Answer
To determine the value of y using the statement y ← SUBSTRING(4, 7, landmark), we extract characters starting from position 4 to 7 in the variable 'landmark'. If 'landmark' equals 'Alcatraz Island', then y would equal 'cat'. Shade the corresponding lozenge for this value.
Step 4
What value is assigned to z?
Answer
The variable z is found using the statement z ← POSITION(landmark, 't'). This indicates we need to find the first occurrence of the character 't' in 'landmark'. If 'landmark' = 'Alcatraz Island', 't' first appears at position 4. Therefore, z would be assigned the value 4. Shade the lozenge corresponding to this value.