Computer programmers often refer to memory addresses using ___

BrainMassComputer Science148967Programming Essentials MCQ Multiple Choice Questions1. Computer programmers often refer to memory addresses using ____notation, or base 16.a. binaryb. indirectc. mathematicald. hexadecimal

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1. Computer programmers often refer to memory addresses using ____ notation, or base 16. a. binary b. indirect c. mathematical

d. hexadecimal

2. After a programmer plans the logic of a program, she will next ____. a. understand the problem b. test the program c. translate the program

d. code the program

3. The process of walking through a program's logic on paper before you actually write the program is called ____. a. desk-checking b. flowcharting c. pseudocoding

d. testing

4. What is the problem with the following statement? 100=grade a. 100 is not a reasonable grade b. 100 should be in quotes c. data types don't match

d. value on the left must be a variable name

5. What might be considered the seventh step of the programming process? a. testing b. maintaining c. replacing

d. converting

6. What symbol is used to represent output in a flowchart? a. square b. circle c. parallelogram

d. triangle

7. What is the standard terminal symbol for a flowchart? a. circle b. lozenge c. diamond

d. square

8. A variable name is also called a(n) ____. a. placeholder b. identifier c. constant

d. hexadecimal

9. What is the assignment operator? a. = b. * c. ^

d. %

10. What is an example of a string constant? a. 1 b. 12432 c. "oops"

d. o

11. In some programming languages, programmers must write a variable ____ telling the compiler what data type is expected for the variable. a. name b. termination c. decision

d. declaration

12. The following pseudocode is an example of a(n) ____ structure: get number while number is positive add to sum get number a. sequence b. decision c. loop

d. nested

13. The following pseudocode is an example of a(n) ____ structure: get number get another number if first number is bigger than second then print first number else print second number a. sequence b. decision c. loop

d. nested

14. The following pseudocode is an example of a(n) ____ structure: get number get another number add numbers print result a. sequence b. decision c. loop

d. nested

15. The following pseudocode is an example of ____. do stepA do stepB if conditionC is true then do stepD else do stepE endif while conditionF is true do stepG endwhile a. nesting b. stacking c. posttest

d. pretest

16. The following pseudocode is an example of ____. if conditionA is true then do stepE else do stepB do stepC do stepD endif a. nesting b. stacking c. posttest

d. pretest

17. If a program will read 100 data records, you read the first data record in a statement that is separate from the other 99. This is called a ____ read. a. nested b. stacked c. posttest

d. priming

18. The following pseudocode reads a number from the user, multiplies it by 2, and prints the result. What program statement should replace the ? to make this program functional and structured? start get inputNumber while not eof calculatedAnswer = inputNumber * 2 print calculatedAnswer ? endwhile stop a. no statement is needed b. if done then exit c. get inputNumber

d. print inputNumber

19. Structured programs can be easily broken down into routines or ____ that can be assigned to any number of programmers. a. segments b. modules c. units

d. sequences

20. One way to straighten out a flowchart segment that isn't structured is to use what you can call the "____" method. a. spaghetti code b. spaghetti bowl c. restructuring

d. priming

21. What is considered to be a convenience structure? a. if-then-else b. while c. do while

d. sequence

22. The following pseudocode might be re-written using a(n) ____ structure: if class = "Freshman" then tuitionFee = 75 else if class = "Sophomore" then tuitionFee = 50 else if class = "Junior" then tuitionFee = 30 else tuitionFee = 10 endif endif endif a. if-then-else b. case c. while

d. do while

23. In a case structure, the term ____ means "if none of the other cases were true." a. else b. then c. default

d. loop

24. In a ____ loop, the loop body continues to execute as long as the answer to the controlling question is yes, or true. a. do-then b. do-when c. do-until

d. do-while

25. In a(n) ____ loop, the loop body continues to execute as long as the answer to the controlling question is no, or false. a. do-until b. do-while c. while

d. if-then-else

26. Fill in the blank in the following pseudocode: if someCondition is true then do oneProcess _____ do theOtherProcess a. then b. while c. do

d. else

27. What is another name for a loop structure? a. execution b. selection c. iteration

d. case

28. A case structure can be replaced by one or more ____ structures. a. if-then-else b. do-while c. do-until

d. while

29. Which name is best suited to a module that calculates overtime pay? a. calcO() b. cO() c. calculate overtime()

d. calculateOvertime()

30. Which statement is used to indicate the end of a module? a. stop b. end c. return

d. done

31. The ____ can be a useful tool when a program must be modified months or years after the original writing. a. flowchart b. hierarchy chart c. pseudocode

d. variable declaration

32. Which documentation is typically written first? a. input b. output c. internal program

d. external program

33. You can design a printed report on a ____. a. printer layout b. print performance chart c. print character layout

d. printer spacing chart

34. In a ____ program, the user sees a screen and can typically make selections using a mouse or other pointing device. a. reusable b. modular c. GUI

d. command-line

35. User documentation might include ____. a. how to prepare input for the program b. to whom the output should be distributed c. how frequently the program needs to run

d. all of the above

36. Which step occurs first? a. understanding user's needs b. clarifying requirements c. coding program

d. developing program logic

37. Checking that required input files are present would most likely occur in the ____ section of a program. a. main loop b. end-of-job routine c. housekeeping

d. file opening

38. Variable declarations are made in the ____ section of a program. a. main loop b. end-of-job routine c. housekeeping

d. file opening

39. Declaring a variable involves selecting a name and a ____. a. size b. length c. style

d. type

40. Some use a variable-naming convention called ____ notation, in which a variable's data type or other information is stored as part of the name. For example, a numeric field might always start with the prefix num. a. Prefix b. American c. Polish

d. Hungarian

41. A group of variables is often called a ____. a. linked group b. data structure c. data object

d. module

42. When a variable is ____ it is both declared and initialized. a. set b. instantiated c. defined

d. documented

43. How do you physically advance printer paper to the top of a page? a. issue the pageTop() command b. issue the top() command c. it depends on the programming language

d. there is no way to do it

44. What is the default standard output device? a. printer b. monitor c. keyboard

d. mouse

45. What is the problem with the following pseudocode if you assume that the housekeeping() module does not perform a read? start perform housekeeping() (without read) while not eof read invRecord profit = invPrice - invCost print invItemName, invPrice, invCost, profit endwhile a. there is no priming read and the while not eof check may fail b. there is no check for the end of the file c. the loop is not structured

d. there is no input

46. What is a legal statement assigning a value to the profit variable? a. invPrice - invCost = profit b. set profit to Subtract(invPrice, invCost) c. profit = invPrice - invCost

d. subtract invPrice from invCost, set profit

47. Calculated values should be stored in ____ variables if they will be used again in the program. a. unnamed b. temporary c. work

d. default

48. Where is the best place to close input and output files? a. main loop b. housekeeping module c. end-of-job routine

d. clean up segment

49. In a large program, a programmer might store modules in individual files and use an instruction to ____ them in any program that uses them. a. source b. redirect c. set

d. include

50. Which of the following would most likely be a named constant? a. x b. isFinished c. taxRate

d. TAX_RATE

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Programming Assentials #1.doc

The answer has been explained where appropriate. It has been also attached as word document.

1. Computer programmers often refer to memory addresses using ____ notation, or base 16. a. binary b. indirect c. mathematical d. hexadecimal Ans: d.

It's a number system based on 16

2. After a programmer plans the logic of a program, she will next ____. a. understand the problem b. test the program c. translate the program d. code the program Ans: d.

code the program

3. The process of walking through a program's logic on paper before you actually write the program is called ____. a. desk-checking b. flowcharting c. pseudocoding d. testing Ans: b.

A flowchart is a graphical tool to construct the logic behind the program.

4. What is the problem with the following statement? 100=grade a. 100 is not a reasonable grade b. 100 should be in quotes c. data types don't match d. value on the left must be a variable name Ans: d.

Most programming languages do not allow a non-variable to sit on the left hand of an assignment statement.

5. What might be considered the seventh step of the programming process? a. testing b. maintaining c. replacing d. converting Ans: b.

Maintenance usually comes into place after a software has already been developed and deployed.

6. What symbol is used to represent output in a flowchart? a. square b. circle c. parallelogram d. triangle Ans: c.

Both Input/Output are represented as a parallelogram. Examples: Get X from the user; display X.

7. What is the standard terminal symbol for a flowchart? a. circle b. lozenge c. diamond d. square Ans: b.

Start and end symbols, represented as lozenges, ovals or rounded rectangles, usually containing the word "Start" or "End".

8. A variable name is also called a(n) ____. a. placeholder b. identifier c. constant d. hexadecimal Ans: b

This is a tricky question. While the nature of a variable is that it is a placeholder for values, the name of the variable, constant or any other object is called an identifier.

9. What is the assignment operator? a. = b. * c. ^ d. %

Ans: a

10. What is an example of a string constant? a. 1 b. 12432 c. "oops" d. o

Ans: c

11. In some programming languages, programmers must write a variable ____ telling the compiler what data type is expected for the variable. a. name b. termination c. decision d. declaration

Ans: d

12. The following pseudocode is an example of a(n) ____ structure: get number while number is positive add to sum get number a. sequence b. decision c. loop d. nested Ans: c

It's a while loop

13. The following pseudocode is an example of a(n) ____ structure: get number get another number if first number is bigger than second then print first number else

print second ...