Data input in C

Pregunta 1

Which function is used to read data from the keyboard in C?

Opcion A printf Opcion B scanf Opcion C read Opcion D input

Pregunta 2

Which specifier is used to read an integer?

Opcion A %f Opcion B %d Opcion C %c Opcion D %s

Pregunta 3

What prints if the user enters 5?

Snippet c

int x;
scanf("%d",&x);
printf("%d",x);

Opcion A 5 Opcion B 0 Opcion C 1 Opcion D Error

Pregunta 4

Which symbol is used to pass a memory address?

Opcion A * Opcion B & Opcion C % Opcion D #

Pregunta 5

Which specifier is used to read a float?

Opcion A %d Opcion B %f Opcion C %c Opcion D %s

Pregunta 6

What prints if 4 is entered?

Snippet c

int x;
scanf("%d",&x);
printf("%d",x+1);

Opcion A 5 Opcion B 4 Opcion C 3 Opcion D 1

Pregunta 7

What does this code do?

Snippet c

int age;
scanf("%d",&age);

Opcion A Reads an integer Opcion B Prints age Opcion C Declares a function Opcion D Multiplies age

Pregunta 8

Which specifier is used to read a char?

Opcion A %d Opcion B %f Opcion C %c Opcion D %s

Pregunta 9

What does printf do?

Opcion A Reads data Opcion B Prints data Opcion C Creates variables Opcion D Creates loops

Pregunta 10

What prints if 6 is entered?

Snippet c

int x;
scanf("%d",&x);
printf("%d",x*2);

Opcion A 12 Opcion B 6 Opcion C 3 Opcion D 2

Pregunta 11

What allows reading two numbers?

Snippet c

scanf("%d %d",&a,&b);

Opcion A Two integers Opcion B One integer Opcion C A character Opcion D A decimal

Pregunta 12

What prints if 3 and 4 are entered?

Snippet c

int a,b;
scanf("%d %d",&a,&b);
printf("%d",a+b);

Opcion A 7 Opcion B 12 Opcion C 34 Opcion D Error

Pregunta 13

Which type is used for decimal numbers?

Opcion A float Opcion B int Opcion C char Opcion D void

Pregunta 14

What does this code do?

Snippet c

float x;
scanf("%f",&x);

Opcion A Reads a decimal Opcion B Reads an integer Opcion C Prints a decimal Opcion D Declares a function

Pregunta 15

What prints if 5 is entered?

Snippet c

int x;
scanf("%d",&x);
printf("%d",x-2);

Opcion A 3 Opcion B 5 Opcion C 7 Opcion D 2

Pregunta 16

What happens if & is missing in scanf?

Opcion A May cause an error Opcion B Works the same Opcion C Prints the value Opcion D Stops the program

Pregunta 17

What prints if you enter 8?

Snippet c

int x;
scanf("%d",&x);
printf("%d",x/2);

Opcion A 4 Opcion B 16 Opcion C 8 Opcion D 2

Pregunta 18

Which type is used for characters?

Opcion A char Opcion B int Opcion C float Opcion D bool

Pregunta 19

What prints if 10 is entered?

Snippet c

int x;
scanf("%d",&x);
printf("%d",x+5);

Opcion A 15 Opcion B 10 Opcion C 5 Opcion D 20

Pregunta 20

What does scanf do?

Opcion A Reads data Opcion B Prints data Opcion C Declares variables Opcion D Creates loops

Pregunta 21

What prints if 4 is entered?

Snippet c

int x;
scanf("%d",&x);
printf("%d",x*x);

Opcion A 16 Opcion B 8 Opcion C 4 Opcion D 2

Pregunta 22

What prints if 9 is entered?

Snippet c

int x;
scanf("%d",&x);
printf("%d",x-1);

Opcion A 8 Opcion B 9 Opcion C 7 Opcion D 1

Pregunta 23

What does printf("%d",x) do?

Opcion A Prints x Opcion B Reads x Opcion C Declares x Opcion D Multiplies x

Pregunta 24

What prints if 2 is entered?

Snippet c

int x;
scanf("%d",&x);
printf("%d",x+10);

Opcion A 12 Opcion B 10 Opcion C 2 Opcion D 20

Pregunta 25

What does scanf("%d",&x) do?

Opcion A Reads an integer Opcion B Prints integer Opcion C Declares variable Opcion D Multiplies variable

Pregunta 26

What prints if 3 is entered?

Snippet c

int x;
scanf("%d",&x);
printf("%d",x*3);

Opcion A 9 Opcion B 3 Opcion C 6 Opcion D 1

Pregunta 27

What does this code do?

Snippet c

char c;
scanf("%c",&c);

Opcion A Reads a character Opcion B Reads an integer Opcion C Prints a character Opcion D Declares a function

Pregunta 28

What prints if you enter 7?

Snippet c

int x;
scanf("%d",&x);
printf("%d",x+2);

Opcion A 9 Opcion B 7 Opcion C 5 Opcion D 14

Pregunta 29

What prints if you enter 4?

Snippet c

int x;
scanf("%d",&x);
printf("%d",x*4);

Opcion A 16 Opcion B 8 Opcion C 4 Opcion D 2

Pregunta 30

What does scanf allow?

Opcion A Entering data Opcion B Printing data Opcion C Creating functions Opcion D Creating loops

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Data input in C

Which function is used to read data from the keyboard in C?

Which specifier is used to read an integer?

What prints if the user enters 5?

Which symbol is used to pass a memory address?

Which specifier is used to read a float?

What prints if 4 is entered?

What does this code do?

Which specifier is used to read a char?

What does printf do?

What prints if 6 is entered?

What allows reading two numbers?

What prints if 3 and 4 are entered?

Which type is used for decimal numbers?

What does this code do?

What prints if 5 is entered?

What happens if & is missing in scanf?

What prints if you enter 8?

Which type is used for characters?

What prints if 10 is entered?

What does scanf do?

What prints if 4 is entered?

What prints if 9 is entered?

What does printf("%d",x) do?

What prints if 2 is entered?

What does scanf("%d",&x) do?

What prints if 3 is entered?

What does this code do?

What prints if you enter 7?

What prints if you enter 4?

What does scanf allow?

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