Chapter 2 : Basic Elements of C++
العلوم والتكنولوجيا والنتصفحة 1 من اصل 1
27102010
C++ MULTIPLE-CHOICE QUESTIONS - Chapter 3
CHAPTER 3 : Input/Output -- ED 2
--------------------------------------------------------------------------------
Self-Tests
أسئلة اختيار من متعدد لمادة مهارات حاسوبية 2 مع الإجابات الصحيحة
MULTIPLE-CHOICE QUESTIONS
Chapter 3 : Input/Output i
--------------------------------------------------------------------------------
1.After the program terminates, any values left in the input stream are __________. i
A: reused
B: updated
C: discarded
D: copied
Correct Answer :
Hidden:
C: discarded
2. Stream variables are called stream __________.
A: objects
B: place holders
C: values
D: items
Correct Answer :
Hidden:
A: objects
3. The extraction operator >> is binary and thus takes __________ operand(s).
A: no
B: one
C: two
D: three
Correct Answer :
Hidden:
C: two
4. In the cin.get statement, varChar which appears in parentheses following the function name, is called the argument or __________ of the function.
A: variable
B: parameter
C: value
D: content
Correct Answer :
Hidden:
B: parameter
5. I/O is a sequence of bytes called a __________.
A: sequence of bytes
B: group of bytes
C: word
D: stream of bytes
Correct Answer :
Hidden:
D: stream of bytes
6.When you want to process only partial data, you can use the stream function __________ to discard a portion of the input.
A: put
B: get
C: cin
D: ignore
Correct Answer :
Hidden:
D: ignore
7. The general syntax of the setprecision manipulator is __________.
A: precision(n)
B: setprec(n)
C: set precision(n)
D: setprecision(n)
Correct Answer :
Hidden:
D: setprecision(n)
8. Entering a char value into an int or double variable causes serious errors, called __________.
A: value errors
B: input failure
C: input errors
D: value failure
Correct Answer :
Hidden:
B: input failure
9.When there is an error, the input stream then enters a state called the __________ state.
A: error
B: problem
C: fail
D: misread
Correct Answer :
Hidden:
C: fail
10. Characters that consist of blanks and certain nonprintable characters, such as tabs and the newline character, are known as __________.
A: openspace
B: emptyspace
C: blankspace
D: whitespace
Correct Answer :
Hidden:
D: whitespace
11. The syntax to use the function peek is __________.
A: ch = istream.peek(Var);
B: ch = Varistream.peek();
C: ch = istreamVar.peek();
D: ch = istream.peek.Var();
Correct Answer :
Hidden:
C: ch = istreamVar.peek();
12. A sequence of characters from the computer to an output device is known as a(n) __________.
A: output stream
B: input stream
C: common output
D: common input
Correct Answer :
Hidden:
A: output stream
13. The stream function __________ lets you put the last character extracted from the input stream by the get function back into the input stream.
A: return
B: put
C: putback
D: peek
Correct Answer :
Hidden:
C: putback
14. The manipulator __________ is used to output the value of an expression in specific columns.
A: setw
B: set
C: setc
D: setn
Correct Answer :
Hidden:
A: setw
15. An expression such as pow(2,3) is called a __________.
A: function
B: program
C: function call
D: program call
Correct Answer :
Hidden:
C: function call
16. You can use the stream function __________ to restore the input stream to a working state.
A: restore
B: fix
C: update
D: clear
Correct Answer :
Hidden:
D: clear
17. A decimal number, possibly preceded by a (+ or -) sign, is valid input for which simple data type?
A: char
B: int
C: double
D: both b and c
Correct Answer :
Hidden:
D: both b and c
18. The function peek has __________ parentheses.
A: open
B: empty
C: filled
D: two sets of
Correct Answer :
Hidden:
B: empty
19. A __________ is either an input stream variable or an output stream variable.
A: function variable
B: user-defined variable
C: common output variable
D: stream variable
Correct Answer :
Hidden:
D: stream variable
20. Which stream function looks into the input stream and tells you what the next character is without removing it from the input stream?
A: return
B: put
C: putback
D: peek
Correct Answer :
Hidden:
D: peek
--------------------------------------------------------------------------------
Self-Tests
أسئلة اختيار من متعدد لمادة مهارات حاسوبية 2 مع الإجابات الصحيحة
MULTIPLE-CHOICE QUESTIONS
Chapter 3 : Input/Output i
--------------------------------------------------------------------------------
1.After the program terminates, any values left in the input stream are __________. i
A: reused
B: updated
C: discarded
D: copied
Correct Answer :
Hidden:
C: discarded
2. Stream variables are called stream __________.
A: objects
B: place holders
C: values
D: items
Correct Answer :
Hidden:
A: objects
3. The extraction operator >> is binary and thus takes __________ operand(s).
A: no
B: one
C: two
D: three
Correct Answer :
Hidden:
C: two
4. In the cin.get statement, varChar which appears in parentheses following the function name, is called the argument or __________ of the function.
A: variable
B: parameter
C: value
D: content
Correct Answer :
Hidden:
B: parameter
5. I/O is a sequence of bytes called a __________.
A: sequence of bytes
B: group of bytes
C: word
D: stream of bytes
Correct Answer :
Hidden:
D: stream of bytes
6.When you want to process only partial data, you can use the stream function __________ to discard a portion of the input.
A: put
B: get
C: cin
D: ignore
Correct Answer :
Hidden:
D: ignore
7. The general syntax of the setprecision manipulator is __________.
A: precision(n)
B: setprec(n)
C: set precision(n)
D: setprecision(n)
Correct Answer :
Hidden:
D: setprecision(n)
8. Entering a char value into an int or double variable causes serious errors, called __________.
A: value errors
B: input failure
C: input errors
D: value failure
Correct Answer :
Hidden:
B: input failure
9.When there is an error, the input stream then enters a state called the __________ state.
A: error
B: problem
C: fail
D: misread
Correct Answer :
Hidden:
C: fail
10. Characters that consist of blanks and certain nonprintable characters, such as tabs and the newline character, are known as __________.
A: openspace
B: emptyspace
C: blankspace
D: whitespace
Correct Answer :
Hidden:
D: whitespace
11. The syntax to use the function peek is __________.
A: ch = istream.peek(Var);
B: ch = Varistream.peek();
C: ch = istreamVar.peek();
D: ch = istream.peek.Var();
Correct Answer :
Hidden:
C: ch = istreamVar.peek();
12. A sequence of characters from the computer to an output device is known as a(n) __________.
A: output stream
B: input stream
C: common output
D: common input
Correct Answer :
Hidden:
A: output stream
13. The stream function __________ lets you put the last character extracted from the input stream by the get function back into the input stream.
A: return
B: put
C: putback
D: peek
Correct Answer :
Hidden:
C: putback
14. The manipulator __________ is used to output the value of an expression in specific columns.
A: setw
B: set
C: setc
D: setn
Correct Answer :
Hidden:
A: setw
15. An expression such as pow(2,3) is called a __________.
A: function
B: program
C: function call
D: program call
Correct Answer :
Hidden:
C: function call
16. You can use the stream function __________ to restore the input stream to a working state.
A: restore
B: fix
C: update
D: clear
Correct Answer :
Hidden:
D: clear
17. A decimal number, possibly preceded by a (+ or -) sign, is valid input for which simple data type?
A: char
B: int
C: double
D: both b and c
Correct Answer :
Hidden:
D: both b and c
18. The function peek has __________ parentheses.
A: open
B: empty
C: filled
D: two sets of
Correct Answer :
Hidden:
B: empty
19. A __________ is either an input stream variable or an output stream variable.
A: function variable
B: user-defined variable
C: common output variable
D: stream variable
Correct Answer :
Hidden:
D: stream variable
20. Which stream function looks into the input stream and tells you what the next character is without removing it from the input stream?
A: return
B: put
C: putback
D: peek
Correct Answer :
Hidden:
D: peek
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تاريخ التسجيل : 26/10/2010
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مُشاطرة هذه المقالة على:
Chapter 2 : Basic Elements of C++ :: تعاليق
الأربعاء أكتوبر 27, 2010 3:08 am من طرف Admin
Chapter 2 : Basic Elements of C++ i
--------------------------------------------------------------------------------
1. A set of rules, symbols, and special words that enable you to write code is known as __________. i
A: syntax rules
B: semantic rules
C: syntax
D: a programming language
Correct Answer :
Hidden:
D: a programming language
2. Which of the following is not a C++ special symbol?
A: <= i
B: == i
C: => i
D: != i
Correct Answer :
Hidden:
C: =>
3. Which of the following is not a legal identifier?
A: first
B: conversion
C: payRate
D: 'primary
Correct Answer :
Hidden:
D: 'primary
4. An expression that evaluates to true or false is called a(n) __________ expression.
A: logical (Boolean)
B: int
C: char
D: data
Correct Answer :
Hidden:
A: logical (Boolean)
5. The ASCII character set has __________ values.
A: 64
B: 128
C: 256
D: 512
Correct Answer :
Hidden:
B: 128
6. A string containing no characters is called a(n) __________ or empty string.
A: open
B: blank
C: null
D: closed
Correct Answer :
Hidden:
C: null
7. An operator that has two operands is known as a __________ operator.
A: unary
B: binary
C: dual
D: mixed
Correct Answer :
Hidden:
B: binary
8. A memory location whose content may change during program execution is known as a(n) __________.
A: variable
B: place holder
C: location
D: execution location
Correct Answer :
Hidden:
A: variable
9. A C++ program is a collection of one or more subprograms, called __________.
A: functions
B: statements
C: objects
D: parameters
Correct Answer :
Hidden:
A: functions
10. What tells you which statements (instructions) are legal, or accepted by the programming language, and which are not?
A: semantic rules
B: syntax rules
C: programming rules
D: language rules
Correct Answer :
Hidden:
B: syntax rules
11. A language used to describe the syntax rules is known as a(n) __________.
A: codelanguage
B: metalanguage
C: descriptive language
D: describer language
Correct Answer :
Hidden:
B: metalanguage
12. The letters that make up a reserved word are always __________.
A: lowercase
B: uppercase
C: camel case
D: capcase
Correct Answer :
Hidden:
A: lowercase
13. Which is a data type that deals with integers, or numbers without a decimal part?
A: integral
B: floating-point
C: enumeration type
D: numeric
Correct Answer :
Hidden:
A: integral
14. The collating sequence is used when you __________ characters.
A: create
B: compare
C: combine
D: count
Correct Answer :
Hidden:
B: compare
15. The maximum number of significant digits is called the __________.
A: significance
B: position
C: location
D: precision
Correct Answer :
Hidden:
D: precision
16. Every character in a string has a relative __________ in the string.
A: position
B: hierarchy
C: importance
D: area
Correct Answer :
Hidden:
A: position
17. An expression that has operands of different data types is called a __________ expression.
A: unary
B: binary
C: dual
D: mixed
Correct Answer :
Hidden:
D: mixed
18. Tracing values through a sequence is called a(n) __________.
A: association
B: walkthrough
C: play out
D: enumeration
Correct Answer :
Hidden:
B: walkthrough
19. A(n) __________ is a collection of statements that when activated or executed, accomplishes something.
A: object
B: statement
C: parameter
D: subprogram
Correct Answer :
Hidden:
D: subprogram
20. Which rules determine the meaning of the instructions?
A: semantic rules
B: syntax rules
C: programming rules
D: language rules
Correct Answer :
Hidden:
A: semantic rules
--------------------------------------------------------------------------------
1. A set of rules, symbols, and special words that enable you to write code is known as __________. i
A: syntax rules
B: semantic rules
C: syntax
D: a programming language
Correct Answer :
Hidden:
D: a programming language
2. Which of the following is not a C++ special symbol?
A: <= i
B: == i
C: => i
D: != i
Correct Answer :
Hidden:
C: =>
3. Which of the following is not a legal identifier?
A: first
B: conversion
C: payRate
D: 'primary
Correct Answer :
Hidden:
D: 'primary
4. An expression that evaluates to true or false is called a(n) __________ expression.
A: logical (Boolean)
B: int
C: char
D: data
Correct Answer :
Hidden:
A: logical (Boolean)
5. The ASCII character set has __________ values.
A: 64
B: 128
C: 256
D: 512
Correct Answer :
Hidden:
B: 128
6. A string containing no characters is called a(n) __________ or empty string.
A: open
B: blank
C: null
D: closed
Correct Answer :
Hidden:
C: null
7. An operator that has two operands is known as a __________ operator.
A: unary
B: binary
C: dual
D: mixed
Correct Answer :
Hidden:
B: binary
8. A memory location whose content may change during program execution is known as a(n) __________.
A: variable
B: place holder
C: location
D: execution location
Correct Answer :
Hidden:
A: variable
9. A C++ program is a collection of one or more subprograms, called __________.
A: functions
B: statements
C: objects
D: parameters
Correct Answer :
Hidden:
A: functions
10. What tells you which statements (instructions) are legal, or accepted by the programming language, and which are not?
A: semantic rules
B: syntax rules
C: programming rules
D: language rules
Correct Answer :
Hidden:
B: syntax rules
11. A language used to describe the syntax rules is known as a(n) __________.
A: codelanguage
B: metalanguage
C: descriptive language
D: describer language
Correct Answer :
Hidden:
B: metalanguage
12. The letters that make up a reserved word are always __________.
A: lowercase
B: uppercase
C: camel case
D: capcase
Correct Answer :
Hidden:
A: lowercase
13. Which is a data type that deals with integers, or numbers without a decimal part?
A: integral
B: floating-point
C: enumeration type
D: numeric
Correct Answer :
Hidden:
A: integral
14. The collating sequence is used when you __________ characters.
A: create
B: compare
C: combine
D: count
Correct Answer :
Hidden:
B: compare
15. The maximum number of significant digits is called the __________.
A: significance
B: position
C: location
D: precision
Correct Answer :
Hidden:
D: precision
16. Every character in a string has a relative __________ in the string.
A: position
B: hierarchy
C: importance
D: area
Correct Answer :
Hidden:
A: position
17. An expression that has operands of different data types is called a __________ expression.
A: unary
B: binary
C: dual
D: mixed
Correct Answer :
Hidden:
D: mixed
18. Tracing values through a sequence is called a(n) __________.
A: association
B: walkthrough
C: play out
D: enumeration
Correct Answer :
Hidden:
B: walkthrough
19. A(n) __________ is a collection of statements that when activated or executed, accomplishes something.
A: object
B: statement
C: parameter
D: subprogram
Correct Answer :
Hidden:
D: subprogram
20. Which rules determine the meaning of the instructions?
A: semantic rules
B: syntax rules
C: programming rules
D: language rules
Correct Answer :
Hidden:
A: semantic rules
الأحد فبراير 27, 2011 6:59 am من طرف سعد الدهيمي
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مواضيع مماثلة» Semantics and its basic notions
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