Computer Science for IGCSE & O level - Programming (Section 13)
1
Which of the following are typical components of a file handling process?
პასუხი
A
B
C
2
What does the `import java.io.File` statement do in Java?
პასუხი
(A)
Imports the file class
3
What happens if you attempt to read from a file that hasn't been opened first?
პასუხი
(C)
An error will likely occur.
4
Based on the information given, a one-dimensional array can also be referred to as:
პასუხი
(B)
A list
5
Which operator is typically used to represent 'not equal to' in most programming languages?
პასუხი
(A)
!=
6
Which of the following components are crucial for the file handling procedure?
პასუხი
B
C
D
7
Which of the following statements is true about file storage?
პასუხი
B
C
D
8
Which of the following best describes a global variable?
პასუხი
(B)
It can be used by any part of the program.
9
What does the `READFILE` statement in the pseudocode signify in the context of file handling?
პასუხი
(C)
Reads a line from the file.
10
Which of the following are common data types used in programming?
პასუხი
A
B
C
D
11
What does DRY stand for in programming principles?
პასუხი
(A)
Don't Repeat Yourself
12
Which of the following is a purpose of comments in the program?
პასუხი
(B)
They help in code readability.
13
In the pseudocode, what does the line `AVERAGE = TOTAL / COUNTER` calculate?
პასუხი
(C)
The average of the marks.
14
What is the correct keyword for declaring a constant?
პასუხი
(C)
CONST
15
What does the program compute after the completion of the outer loop? (FOR Student = 1 TO NumOfStudents)
პასუხი
(D)
All of the above
16
Which of the following are important aspects of code readability?
პასუხი
A
B
C
17
Which logical operator would result in TRUE only if *both* operands are TRUE?
პასუხი
(B)
AND
18
If the value of 'age' is 10 and the following code executes, what will be printed?
```
IF age >= 17
THEN
Print "You are an adult"
ELSE
Print "You are a child"
ENDIF
```
პასუხი
(A)
You are a child
19
What is the result if a CASE statement has no matching case, and no default (or ELSE) clause?
პასუხი
(C)
The program continues execution after the CASE block.
20
Which of the following is considered a control structure?
პასუხი
(C)
Loops
21
What does the `Uppercase` method usually do in string manipulation?
პასუხი
(C)
Convert a string to uppercase.
22
What does the term 'scope' refer to in programming?
პასუხი
(C)
The part of the program where a variable is accessible.
23
What is typically required before writing to a file in most programming languages?
პასუხი
(B)
Opening the file in write mode
24
What is the purpose of comments in programming?
პასუხი
(B)
To improve code readability and explain the code.
25
In the pseudocode example, the variable 'COUNTER' is incremented in each iteration. What is the role of COUNTER?
პასუხი
(C)
To count the number of marks entered.
26
What will be calculated by the inner loop, for each student, during the nested loop structure?
პასუხი
(C)
The sum of all the marks obtained in all subjects.
27
What would be the appropriate data type for the variable used to store a student's name?
პასუხი
(C)
STRING
28
What is one of the first steps involved in writing to a file?
პასუხი
(C)
Opening the file.
29
What does the 'a' mode stand for when opening a file?
პასუხი
(C)
Append mode
30
What is the purpose of comments in a program?
პასუხი
(C)
To explain the code to humans.
31
What is the purpose of an algorithm?
პასუხი
(B)
To provide a set of instructions to solve a problem.
32
What is a procedure also known as?
პასუხი
(C)
A subroutine
33
What operation is performed by the statement `myFile.write('Hello')` in a Python example?
პასუხი
(B)
Writing 'Hello' to the file
34
What does the term 'index' refer to within an array?
პასუხი
(C)
The position of an element within the array
35
What does the `open()` function typically return when successful?
პასუხი
(C)
A file object
36
What does `myFile.readline()` do in Python?
პასუხი
(B)
Reads a line from the file
37
What is the function of the `Lowercase` method in string handling?
პასუხი
(C)
To convert a string to lowercase.
38
In the provided code, what is the purpose of initializing `ClassHigh` to 0?
პასუხი
(C)
To set the starting value for comparing with student marks.
39
What does a "For" loop usually require?
პასუხი
(A)
A start value, an end value, and an increment/decrement.
40
What is the purpose of `Input` in the pseudo code?
პასუხი
(B)
Takes the input from the user.
41
Which programming construct allows a program to repeat a block of code until a certain condition is met?
პასუხი
(B)
Iteration statement
42
Which of the following is NOT a typical action when working with a file?
პასუხი
(D)
Sorting
43
In a nested IF-ELSE structure, how are the inner blocks of code related to the outer structure?
პასუხი
(B)
The execution of the inner block depends on the condition of the outer block.
44
Which of the following are good practices when working with files?
პასუხი
A
C
45
What is the advantage of using meaningful identifiers for variables?
პასუხი
(B)
Improves code readability and understanding.
46
Which type of loop is characterized by the condition being evaluated *after* the loop body executes?
პასუხი
(B)
Post-condition loop
47
Which part of the program is executed based on the value of 'answer' in the case statement?
პასუხი
(B)
The code block associated with the matching case.
48
What does the '%' operator represent in many programming languages?
პასუხი
(C)
Modulo (remainder)
49
What is the primary benefit of the 'modular' approach to programming (using procedures and functions)?
პასუხი
(D)
It enhances reusability and reduces code duplication.
50
Which is a characteristic of a post-condition loop?
