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<=KNEC diploma in ICT module 1 structured programming past paper:July 2017
A newly established bank converts Kenya shillings to US dollars at the rate of 1 US dollar 102 Kenya shillings. Write a program in C programming language that prompts a user to enter the currency either Ksh or USD. The program then outputs the equivalent amount. Use functions
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Questions List:
1. Explain one disadvantage of using go to statement in a program
2. Distinguish between procedural and visual programming
3. A student would like to write a program that could compute and display the average of 10 integers entered through the keyboard one at a time. Use a flow chart to design the program
4. Assuming Pascal programming language, evaluate the expression; Z=a + b mod c *(d^2) Given that a = 10, b =23, c = 7 and d = 5.
5. The following are identifiers used by a student in C programming language during program writing. myval, const, integer and switch Citing a reason in each case, state whether these identifiers are valid or not
6. Outline the function of preprocessor directives in C programming language
7. Explain one type of error that may be encountered during program execution
8. Write a program in Pascal language that would create a text tile, write some text into the file and then close the file
9. Write a program in Pascal language that could be used to store in a record; admission number, name, gender and age of two students
10. State two floating data types and their storage sizes as used in C programming language
11. Define a pointer as used in Pascal programming language
12. Distinguish between register and static storages as used in C programming language
13. Write a program in C programming language that would prompt a user to enter an integer. The program should then check whether the integer entered is a prime number and output the result
14. A program is required to prompt a user to enter two non-zero integers. The program then checks and outputs the larger integer. (i)Write a pseudocode to represent the program logic ii)Write a program in Pascal programming language to implement the logic
15. Outline three circumstances that would make a programmer to use a compiler during program writing
16. Describe three types of operators used in C programming language
17. The following program was created by a student during a programming lesson. Use it to answer the question that follows. (4 marks) # include<stdio.h> main ( ) { int a =0; int b=15; int c; if (a && b) { printf (“Line 1-condition is true\n”) } if( a || b) { printf (“Line 1-condition is true\n”) } } Interpret the program
18. Outline two uses of comments in Pascal programming language
19. A newly constructed computer lab is 15 meters long and 10 meters wide. The lab is to be fitted with floor tiles. Write a program in Pascal programming language that prompts a user to enter the length and width of the lab. The program then computes the number of tiles required. One tile has an area of #0.36M^2#
20. Outline two reasons why program documentation is important
21. Explain three types of program testing
22. Write an algorithm that may be used to remove an item from a queue
23. Differentiate between procedure and function as used in Pascal programming language
24. Write a program in C programming language that computes the sum of even numbers between 44 and 100 and output the result. Use for loop
25. Outline two advantages of modular programming approach
26. Given data items: 56, 64, 40, 59, 34, 72 and 47. I. Construct a binary tree II. State the degree of the binary tree constructed in I.
27. Outline three tree data structure traversals as used in programming
28. A newly established bank converts Kenya shillings to US dollars at the rate of 1 US dollar 102 Kenya shillings. Write a program in C programming language that prompts a user to enter the currency either Ksh or USD. The program then outputs the equivalent amount. Use functions
29. Write a program in Pascal programming language that prompts a user to enter a string of characters. The program then outputs the number of characters in the string
30. Distinguish between pre-increment and post-increment as used in C programming language
31. Define quick sort as used in programming
32. Explain two techniques that could be used to find an item in an ordered list
33. Distinguish between actual and formal parameters as used in programming
34. A student created a program to implement stack data structure. When he executed the program an "underflow error message" was displayed. Outline a possible cause for this error
35. Write a program in C programming language that would initialize the values 34, 40, 45, 48 and 53 in an array and get their sum
36. Table 1 shows the criteria used by the national government to allocate bursaries to college students. Use it to answer the question that follows. Write a program in Pascal programming that would prompt a user to enter student category. The program then outputs the corresponding amount. Use case statement
1. Explain one disadvantage of using go to statement in a program
2. Distinguish between procedural and visual programming
3. A student would like to write a program that could compute and display the average of 10 integers entered through the keyboard one at a time. Use a flow chart to design the program
4. Assuming Pascal programming language, evaluate the expression; Z=a + b mod c *(d^2) Given that a = 10, b =23, c = 7 and d = 5.
5. The following are identifiers used by a student in C programming language during program writing. myval, const, integer and switch Citing a reason in each case, state whether these identifiers are valid or not
6. Outline the function of preprocessor directives in C programming language
7. Explain one type of error that may be encountered during program execution
8. Write a program in Pascal language that would create a text tile, write some text into the file and then close the file
9. Write a program in Pascal language that could be used to store in a record; admission number, name, gender and age of two students
10. State two floating data types and their storage sizes as used in C programming language
11. Define a pointer as used in Pascal programming language
12. Distinguish between register and static storages as used in C programming language
13. Write a program in C programming language that would prompt a user to enter an integer. The program should then check whether the integer entered is a prime number and output the result
14. A program is required to prompt a user to enter two non-zero integers. The program then checks and outputs the larger integer. (i)Write a pseudocode to represent the program logic ii)Write a program in Pascal programming language to implement the logic
15. Outline three circumstances that would make a programmer to use a compiler during program writing
16. Describe three types of operators used in C programming language
17. The following program was created by a student during a programming lesson. Use it to answer the question that follows. (4 marks) # include<stdio.h> main ( ) { int a =0; int b=15; int c; if (a && b) { printf (“Line 1-condition is true\n”) } if( a || b) { printf (“Line 1-condition is true\n”) } } Interpret the program
18. Outline two uses of comments in Pascal programming language
19. A newly constructed computer lab is 15 meters long and 10 meters wide. The lab is to be fitted with floor tiles. Write a program in Pascal programming language that prompts a user to enter the length and width of the lab. The program then computes the number of tiles required. One tile has an area of #0.36M^2#
20. Outline two reasons why program documentation is important
21. Explain three types of program testing
22. Write an algorithm that may be used to remove an item from a queue
23. Differentiate between procedure and function as used in Pascal programming language
24. Write a program in C programming language that computes the sum of even numbers between 44 and 100 and output the result. Use for loop
25. Outline two advantages of modular programming approach
26. Given data items: 56, 64, 40, 59, 34, 72 and 47. I. Construct a binary tree II. State the degree of the binary tree constructed in I.
27. Outline three tree data structure traversals as used in programming
28. A newly established bank converts Kenya shillings to US dollars at the rate of 1 US dollar 102 Kenya shillings. Write a program in C programming language that prompts a user to enter the currency either Ksh or USD. The program then outputs the equivalent amount. Use functions
29. Write a program in Pascal programming language that prompts a user to enter a string of characters. The program then outputs the number of characters in the string
30. Distinguish between pre-increment and post-increment as used in C programming language
31. Define quick sort as used in programming
32. Explain two techniques that could be used to find an item in an ordered list
33. Distinguish between actual and formal parameters as used in programming
34. A student created a program to implement stack data structure. When he executed the program an "underflow error message" was displayed. Outline a possible cause for this error
35. Write a program in C programming language that would initialize the values 34, 40, 45, 48 and 53 in an array and get their sum
36. Table 1 shows the criteria used by the national government to allocate bursaries to college students. Use it to answer the question that follows. Write a program in Pascal programming that would prompt a user to enter student category. The program then outputs the corresponding amount. Use case statement
