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Smoking is prohibited 1 CS 101 First Exam Review
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Smoking is prohibited 2MC-1 The statement that correctly assigns the sum of the two variables “loop_count” and “petrol_cost” to the variable “sum”, is a.loop_count = sum + petrol_cost; b.petrol_cost = sum - loop_count; c.sum = petrol_cost / loop_count; d.sum = loop_count + petrol_cost;
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Smoking is prohibited 3MC-1 The statement that correctly assigns the sum of the two variables “loop_count” and “petrol_cost” to the variable “sum”, is a.loop_count = sum + petrol_cost; b.petrol_cost = sum - loop_count; c.sum = petrol_cost / loop_count; d.sum = loop_count + petrol_cost;
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Smoking is prohibited 4MC-2 Which of these following variable names are valid? 1.3set2.PAY DAY3.bin_2 4.cin5.num-5 a.1, 2 & 4 b.2, 3 & 5 c.2 & 5 d.3 & 4
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Smoking is prohibited 5MC-2 Which of these following variable names are valid? 1.3set2.PAY DAY3.bin_2 4.cin5.num-5 a.1, 2 & 4 b.2, 3 & 5 c.2 & 5 d.3 & 4
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Smoking is prohibited 6MC-3 The correct statement which divides the variable “t” by the value 10 and stores the result in the variable “d”, is a.d = t/10; b.d = 10/t; c.t = d/10; d.t = 10/d;
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Smoking is prohibited 7MC-3 The correct statement which divides the variable “t” by the value 10 and stores the result in the variable “d”, is a.d = t/10; b.d = 10/t; c.t = d/10; d.t = 10/d;
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Smoking is prohibited 8MC-4 The statement that correctly defines an integer called “sum” is a.sum : integer; b.integer sum; c.int sum; d.sum int;
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Smoking is prohibited 9MC-4 The statement that correctly defines an integer called “sum” is a.sum : integer; b.integer sum; c.int sum; d.sum int;
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Smoking is prohibited 10MC-5 Select the incorrect statement. a.9 % 4 produce the same output as 4 % 3 b.Z = X - -Y; The same as Z = X - (-Y); The same as Z = X + Y; c.X*Y < Z+3 is the same as (X*Y) < (Z+3) d.Assume that x = 7, y = 25, and z = 24.4, then (x != y-18) produces the same output as (x+y != z).
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Smoking is prohibited 11MC-5 Select the incorrect statement. a.9 % 4 produce the same output as 4 % 3 b.Z = X - -Y; The same as Z = X - (-Y); The same as Z = X + Y; c.X*Y < Z+3 is the same as (X*Y) < (Z+3) d.Assume that x = 7, y = 25, and z = 24.4, then (x != y-18) produces the same output as (x+y != z).
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Smoking is prohibited 12MC-6 Convert f = e into a valid C++ assignment. a.f = a+b / c-d * e; b.f = (a+b) / (c-d) * e; c.f = (a+b)/c-d * e; d.f = a+b / (c-d) * e;
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Smoking is prohibited 13MC-6 Convert f = e into a valid C++ assignment. a.f = a+b / c-d * e; b.f = (a+b) / (c-d) * e; c.f = (a+b)/c-d * e; d.f = a+b / (c-d) * e;
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Smoking is prohibited 14MC-7 What is the output of the following? int x = 1, y = 2, z = 3; cout << 3 / x / (y – x); a.1 b.2 c.3 d.4
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Smoking is prohibited 15MC-7 What is the output of the following? int x = 1, y = 2, z = 3; cout << 3 / x / (y – x); a.1 b.2 c.3 d.4
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Smoking is prohibited 16MC-8 What is the output of the following statement? cout << ((3*4*(5/2-(21%4-1)*2)+1)-1); a.12 b.-25 c.47 d.24
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Smoking is prohibited 17MC-8 What is the output of the following statement? cout << ((3*4*(5/2-(21%4-1)*2)+1)-1); a.12 b.-25 c.47 d.24
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Smoking is prohibited 18MC-9 How is the following expression is written in C++? y = 3 x 2 – 2x a.y = 3 * x + x – 2 + x b.y = (3 + (x * x)) – (2 + x) c.y = 3 * x^2 – 2 * x d.y = 3 * x * x – 2 * x
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Smoking is prohibited 19MC-9 How is the following expression is written in C++? y = 3 x 2 – 2x a.y = 3 * x + x – 2 + x b.y = (3 + (x * x)) – (2 + x) c.y = 3 * x^2 – 2 * x d.y = 3 * x * x – 2 * x
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Smoking is prohibited 20MC-10 Given int a = 7 and int b = 3 then the value of Y will be: Y = ( a * b % ( a + b +2) – ( a / b) ) a.3 b.7 c.5 d.Non of the answers
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Smoking is prohibited 21MC-10 Given int a = 7 and int b = 3 then the value of Y will be: Y = ( a * b % ( a + b +2) – ( a / b) ) a.3 b.7 c.5 d.Non of the answers
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Smoking is prohibited 22MC-11 Choose the right statement. a.A C++ program that prints 3 lines must contain 3 cout statements. b.A C++ program that prints 3 lines must contain 2 cout statements. c.A C++ program that prints 3 lines must contain 1 cout statement. d.A C++ program that prints 3 lines may contain 1 or more cout statements.
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Smoking is prohibited 23MC-11 Choose the right statement. a.A C++ program that prints 3 lines must contain 3 cout statements. b.A C++ program that prints 3 lines must contain 2 cout statements. c.A C++ program that prints 3 lines must contain 1 cout statement. d.A C++ program that prints 3 lines may contain 1 or more cout statements.
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Smoking is prohibited 24MC-12 Which of the following statements is incorrect? a.The modulus operator (%) can be used only with an integer operand. b.The arithmetic operators *, /, % all have the same level of precedence. c.C++ considers the two variables (number and NUMBER) to be identical. d.None of the above
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Smoking is prohibited 25MC-12 Which of the following statements is incorrect? a.The modulus operator (%) can be used only with an integer operand. b.The arithmetic operators *, /, % all have the same level of precedence. c.C++ considers the two variables (number and NUMBER) to be identical. d.None of the above
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Smoking is prohibited 26MC-13 In C++, the expression 1 / 2 - 1 % 3 * 2 + 3 = a.1 b.1.5 c.5 d.-1
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Smoking is prohibited 27MC-13 In C++, the expression 1 / 2 - 1 % 3 * 2 + 3 = a.1 b.1.5 c.5 d.-1
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Smoking is prohibited 28MC-14 Statements that the compiler ignore are a.Selection Statements b.Loop Statements c.Include statements d.Comments
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Smoking is prohibited 29MC-14 Statements that the compiler ignore are a.Selection Statements b.Loop Statements c.Include statements d.Comments
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Smoking is prohibited 30MC-15 The statement which correctly assigns the value of the variable “num” to the variable “tot”, is a.tot := num; b.num = tot; c.tot = num; d.num := tot;
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Smoking is prohibited 31MC-15 The statement which correctly assigns the value of the variable “num” to the variable “tot”, is a.tot := num; b.num = tot; c.tot = num; d.num := tot;
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Smoking is prohibited 32MC-16 The correct definition of three variables called x, y, and z, which can hold integer values, is a.int x, y, z b.int x, y, z; c.int x; y; z; d.int x y z;
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Smoking is prohibited 33MC-16 The correct definition of three variables called x, y, and z, which can hold integer values, is a.int x, y, z b.int x, y, z; c.int x; y; z; d.int x y z;
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Smoking is prohibited 34MC-17 Find the errors in the following program? 1.include 1.include 2.int main( { 3. int x; 4. cout << ”Enter a value for x” << endl; 5. cin > x; 6. x = 5 – 3 7. return 0; }
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Smoking is prohibited 35MC-17 Find the errors in the following program? 1.include 1.include 2.int main( { 3. int x; 4. cout << ”Enter a value for x” << endl; 5. cin > x; 6. x = 5 – 3 7. return 0; }
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Smoking is prohibited 36MC-18 What are the values of x, y, z, r, s, and t after the code is executed int x,y,z;float r,s,t; z=2;y=z-1;x=z+4; r=x/y;s=r/z;t=z%y; a.x=4, y=1, z=2, r=2, s=3, t=2. b.x=6, y=4, z=2, r=6, s=3, t=1. c.x=6, y=1, z=2, r=6, s=3, t=0. d.x=4, y=4, z=4, r=2, s=2, t=1.
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Smoking is prohibited 37MC-18 What are the values of x, y, z, r, s, and t after the code is executed int x,y,z;float r,s,t; z=2;y=z-1;x=z+4; r=x/y;s=r/z;t=z%y; a.x=4, y=1, z=2, r=2, s=3, t=2. b.x=6, y=4, z=2, r=6, s=3, t=1. c.x=6, y=1, z=2, r=6, s=3, t=0. d.x=4, y=4, z=4, r=2, s=2, t=1.
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Smoking is prohibited 38MC-19 Which of the following is NOT a valid identifier (i.e. CANNOT be used as a name for a variable). a.phone_number b.EXTRACREDIT c.DOUBLE d.my course
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Smoking is prohibited 39MC-19 Which of the following is NOT a valid identifier (i.e. CANNOT be used as a name for a variable). a.phone_number b.EXTRACREDIT c.DOUBLE d.my course
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Smoking is prohibited 40MC-20 What is the output of the following statement? int num = 26; int num = 26; cout << "Here it is." << num << "\nThere it is."; a.Here it is.There it is. b.Here it is.26\nThere it is. c.Here it is.26 There it is. d.Here it is. 26 There it is.
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Smoking is prohibited 41MC-20 What is the output of the following statement? int num = 26; int num = 26; cout << "Here it is." << num << "\nThere it is."; a.Here it is.There it is. b.Here it is.26\nThere it is. c.Here it is.26 There it is. d.Here it is. 26 There it is.
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Smoking is prohibited 42MC-21 Assuming that the user types 14.92 followed by a return, what is the output of the following code: int num; cout << "Enter a number: "; cin >> num; cout << num; a.0 b.14 c.14.92 d.15
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Smoking is prohibited 43MC-21 Assuming that the user types 14.92 followed by a return, what is the output of the following code: int num; cout << "Enter a number: "; cin >> num; cout << num; a.0 b.14 c.14.92 d.15
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Smoking is prohibited 44MC-22 What is the result of the following code: int a = 53; int b = 6; cout << a / b; a.8.833 b9 c.8 d.5
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Smoking is prohibited 45MC-22 What is the result of the following code: int a = 53; int b = 6; cout << a / b; a.8.833 b9 c.8 d.5
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Smoking is prohibited 46MC-23 The statement that compares the value of an integer called sum against the value 65, and if it is greater, prints the text string "Sorry, try again", is a.if (sum > "65") cout << "Sorry, try again"; b.if (sum > 65) cout << "Sorry, try again"; c.if (65 == sum) cout << "Sorry, try again"; d.if (sum >= 65) cout << "Sorry, try again";
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Smoking is prohibited 47MC-23 The statement that compares the value of an integer called sum against the value 65, and if it is greater, prints the text string "Sorry, try again", is a.if (sum > "65") cout << "Sorry, try again"; b.if (sum > 65) cout << "Sorry, try again"; c.if (65 == sum) cout << "Sorry, try again"; d.if (sum >= 65) cout << "Sorry, try again";
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Smoking is prohibited 48MC-24 The statement that compares total for equality to guess, and if equal prints the value of total, and if not equal prints the value of guess, is a.if (total = guess) cout << total); else cout << guess; b.if (total < guess) cout << total; else cout << guess; c.if (total == guess) cout << total; else cout << guess; d.if (total == guess) cout << guess; else cout << total;
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Smoking is prohibited 49MC-24 The statement that compares total for equality to guess, and if equal prints the value of total, and if not equal prints the value of guess, is a.if (total = guess) cout << total); else cout << guess; b.if (total < guess) cout << total; else cout << guess; c.if (total == guess) cout << total; else cout << guess; d.if (total == guess) cout << guess; else cout << total;
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Smoking is prohibited 50MC-25 3.If grade has the value of 50 what will the following code print? if (grade >= 50) cout << “Passed”; a.nothing b.50 c.“Passed” d.Passed
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Smoking is prohibited 51MC-25 3.If grade has the value of 50 what will the following code print? if (grade >= 50) cout << “Passed”; a.nothing b.50 c.“Passed” d.Passed
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Smoking is prohibited 52MC-26 In C++, the condition x > y > z a.evaluates correctly and could be replaced by (x > y && y > z) b.generates syntax error and should be replaced by (x > y || y > z) c.evaluates correctly and could be replaced by (x > y || y > z) d.generates syntax error and should be replaced by (x > y && y > z)
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Smoking is prohibited 53MC-26 In C++, the condition x > y > z a.evaluates correctly and could be replaced by (x > y && y > z) b.generates syntax error and should be replaced by (x > y || y > z) c.evaluates correctly and could be replaced by (x > y || y > z) d.generates syntax error and should be replaced by (x > y && y > z)
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Smoking is prohibited 54MC-27 The AND (&&) operator a.has less precedence than the OR (II) operator b.associates from right to left c.stops evaluation upon finding one condition to be true d.is a binary operator
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Smoking is prohibited 55MC-27 The AND (&&) operator a.has less precedence than the OR (II) operator b.associates from right to left c.stops evaluation upon finding one condition to be true d.is a binary operator
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Smoking is prohibited 56MC-28 The expression if (num != 65) can be replaced by: a.if (num > 65 && num < 65) b.if ((num == 65)) c.if (num – 65) d.if ( !(num – 65))
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Smoking is prohibited 57MC-28 The expression if (num != 65) can be replaced by: a.if (num > 65 && num < 65) b.if ((num == 65)) c.if (num – 65) d.if ( !(num – 65))
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Smoking is prohibited 58MC-29 What is the output of the following code, assuming that x = 12; if(x = 6) x = x + 1; cout << x; a.12 b.6 c.7 d.x
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Smoking is prohibited 59MC-29 What is the output of the following code, assuming that x = 12; if(x = 6) x = x + 1; cout << x; a.12 b.6 c.7 d.x
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Smoking is prohibited 60MC-30 The statement that tests to see if sum is equal to 10 or total is less than 20, and if so, prints the text string "incorrect.", is a.if ((sum = 10) && (total < 20)) cout << ”incorrect"; b.if ((sum == 10) && (total < 20)) cout << "incorrect"; c.if ((sum == 10) || (total < 20)) cout << "incorrect";
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Smoking is prohibited 61MC-30 The statement that tests to see if sum is equal to 10 or total is less than 20, and if so, prints the text string "incorrect.", is a.if ((sum = 10) && (total < 20)) cout << ”incorrect"; b.if ((sum == 10) && (total < 20)) cout << "incorrect"; c.if ((sum == 10) || (total < 20)) cout << "incorrect";
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Smoking is prohibited 62MC-31 If f is equal 1 and c is not equal an 'X', then assign the value 0 to f, else set f to 1. a.if ((f == 1) && (c != 'X'))f = 0; else f = 1; b.if ((f == 1) && (c <> 'X'))f = 0; elsef = 1; c.if ((f = 1) && (c != 'X'))f = 0; elsef = 1;
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Smoking is prohibited 63MC-31 If f is equal 1 and c is not equal an 'X', then assign the value 0 to f, else set f to 1. a.if ((f == 1) && (c != 'X'))f = 0; else f = 1; b.if ((f == 1) && (c <> 'X'))f = 0; elsef = 1; c.if ((f = 1) && (c != 'X'))f = 0; elsef = 1;
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Smoking is prohibited 64MC-32 What does the following code fragment print? int h = 13; if (h <= 12) cout << "Low bridge: "; cout << "proceed with caution."; a.Nothing is written. b.Low bridge: c.proceed with caution. d.Low bridge: proceed with caution.
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Smoking is prohibited 65MC-32 What does the following code fragment print? int h = 13; if (h <= 12) cout << "Low bridge: "; cout << "proceed with caution."; a.Nothing is written. b.Low bridge: c.proceed with caution. d.Low bridge: proceed with caution.
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Smoking is prohibited 66MC-33 What is the output of the following code? int x = 0, y = 1, z; if(x)z = 1; else z = 2; if(y) z = 3; else z = 4; cout << z; a.4 b.3 c.2 d.1
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Smoking is prohibited 67MC-33 What is the output of the following code? int x = 0, y = 1, z; if(x)z = 1; else z = 2; if(y) z = 3; else z = 4; cout << z; a.4 b.3 c.2 d.1
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Smoking is prohibited 68MC-34 One of these is a Correct C++ statement a.if x == 1 cout << x; b.if (x == 1 ) then cout << x; c.if (x == 1) cout << x; d.if (x == 1) cout >> x;
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Smoking is prohibited 69MC-34 One of these is a Correct C++ statement a.if x == 1 cout << x; b.if (x == 1 ) then cout << x; c.if (x == 1) cout << x; d.if (x == 1) cout >> x;
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Smoking is prohibited 70MC-35 What is the output of the following code? int a = 7; if(a = 1) { if (a == 22) cout << a; } else cout << a; cout << 88; a.88 b.788 c.880 d.088
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Smoking is prohibited 71MC-35 What is the output of the following code? int a = 7; if(a = 1) { if (a == 22) cout << a; } else cout << a; cout << 88; a.88 b.788 c.880 d.088
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