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CCNA 7 Exam Answers 2023

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CLA – Programming Essentials in C Quizzes Chapter 7 Assessment Exam Answers Full 100%

Last Updated on May 20, 2021 by Admin

CLA – Programming Essentials in C Quizzes Chapter 7 Assessment Exam Answers Full 100%

  1. The following string:

    JohnDoe

    is a valid file name in

    • MS Windows systems
    • Unix/Linux systems
  2. Unix/Linux systems treat the following names

        JohnDoe
        johndoe

     

    • as identical file names
    • as different file names
  3. The following string:

    HomeDir/HomeFile

    is a valid file name in:

    • MS Windows systems
    • Unix/Linux systems
  4. The following string:

    D:\USERDIR\johndoe.txt

    is a valid file name in

    • MS Windows systems
    • Unix/Linux systems
  5. What happens if you try to compile and run this program?

        int main(void) { 
            FILE *f; 
            f = fopen("file","wb"); 
            printf("%d",f != NULL); 
            fclose(f); 
            return 0; 
        }

     

    • the program outputs 1
    • the program outputs 0
    • the execution fails
    • the compilation fails
  6. What happens if you try to compile and run this program?

        #include <stdio.h> 
        int main(void) { 
            FILE f; 
            f = fopen("file","wb"); 
            printf("%d",f != NULL); 
            fclose(f); 
            return 0; 
        }

     

    • the execution fails
    • the program outputs 0
    • the compilation fails
    • the program outputs 1
  7. What happens if you try to compile and run this program assuming that fopen() succeeds?

        #include <stdio.h> 
        int main(void) { 
            FILE *f; 
            f = fopen("file","wb"); 
            printf("%d",f != NULL); 
            fclose(f); 
            return 0; 
        }

     

    • the program outputs 2
    • the program outputs 1
    • the compilation or execution fails
    • the program outputs 0
  8. What happens if you try to compile and run this program?

        #include <stdio.h> 
        int main(void) { 
            int i; 
            i = fprintf(stdin,"Hello!"); 
            printf("%d",i == EOF); 
            return 0; 
        }

     

    • the program outputs 0
    • the program outputs 1
    • the program outputs 2
    • the compilation or execution fails
  9. What happens if you try to compile and run this program?

        #include <stdio.h> 
        int main(void) { 
            int i; 
            i = fprintf(stderr,"Hello!"); 
            printf("%d",i == EOF); 
            return 0; 
        }

     

    • the program outputs 0 to the stdout stream
    • the compilation or execution fails
    • the program outputs 1 to the stdout stream
    • the program outputs 2 to the stdout stream
  10. What happens if you try to compile and run this program?

        #include <stdio.h> 
        int main(void) { 
            FILE *f; 
            int i = fprintf(f,"Hello!"); 
            printf("%d",i == EOF); 
            return 0; 
        }

     

    • the program outputs 2
    • the program outputs 0
    • the program outputs 1
    • the compilation or execution fails
  11. What happens if you try to compile and run this program assuming that fopen() succeeds?

        #include <stdio.h> 
        int main(void) { 
            FILE *f = fopen("file","w"); 
            int i = fprintf(f,"Hello!"); 
            printf("%d",i != EOF); 
            return 0; 
        }

     

    • the compilation or execution fails
    • the program outputs 2
    • the program outputs 1
    • the program outputs 0
  12. What happens if you try to compile and run this program assuming that fopen() succeeds?

        #include <stdio.h> 
        int main(void) { 
            FILE *f = fopen("file","w"); 
            int i = fputs(f,"Hello!"); 
            printf("%d",i != EOF); 
            fclose(f);
            return 0; 
        }

     

    • the compilation or execution fails
    • the program outputs 0
    • the program outputs 2
    • the program outputs 1
  13. What happens if you try to compile and run this program assuming that fopen() succeeds?

        #include <stdio.h> 
        int main(void) { 
            FILE *f = fopen("file","w"); 
            int i = fputs("Hello!",f); 
            printf("%d",i != EOF); 
            return 0; 
        }

     

    • the compilation or execution fails
    • the program outputs 1
    • the program outputs 2
    • the program outputs 0
  14. What happens if you try to compile and run this program assuming that fopen() succeeds?

        #include <stdio.h> 
        int main(void) { 
            char s[20]; 
            FILE *f = fopen("file","w"); 
            int i = fputs("12A",f); 
            fclose(f); 
            f = fopen("file","r"); 
            fgets(s,2,f); 
            puts(s); 
            fclose(f); 
            return 0; 
        }

     

    • the compilation or execution fails
    • the program outputs 12A
    • the program outputs 1
    • the program outputs 12
  15. What happens if you try to compile and run this program assuming that fopen() succeeds?

        #include <stdio.h> 
        int main(void) { 
            char s[20]; 
            FILE *f = fopen("file","w"); 
            int i = fputs("12A",f); 
            fclose(f); 
            f = fopen("file","r"); 
            fgets(s,20,f); 
            puts(s); 
            fclose(f); 
            return 0; 
        }

     

    • the program outputs 1
    • the program outputs 12A
    • the compilation or execution fails
    • the program outputs 12
  16. What happens if you try to compile and run this program assuming that fopen() succeeds?

        #include <stdio.h> 
        int main(void) { 
            FILE *f = fopen("file","w"); 
            int i; 
            fputs("12A",f); 
            fclose(f); 
            f = fopen("file","r"); 
            fseek(f,0,SEEK_END); 
            i = ftell(f); 
            fclose(f); 
            printf("%d",i); 
            return 0; 
        }

     

    • the program outputs 3
    • the program outputs 1
    • the program outputs 2
    • the compilation or execution fails
  17. What happens if you try to compile and run this program assuming that fopen() succeeds?

        #include <stdio.h> 
        int main(void) { 
            FILE *f = fopen("file","w"); 
            int i; 
            fputs("12A",f); 
            fclose(f); 
            f = fopen("file","r"); 
            fseek(f); 
            i = ftell(f,0,SEEK_END); 
            fclose(f); 
            printf("%d",i); 
            return 0; 
        }

     

    • the program outputs 3
    • the program outputs 2
    • the program outputs 1
    • the compilation or execution fails
  18. What happens if you try to compile and run this program assuming that fopen() succeeds?

        #include <stdio.h> 
        int main(void) { 
            FILE *f = fopen("file","w"); 
            int i; 
            fputs("12A",f); 
            fclose(f); 
            f = fopen("file","r"); 
            fscanf(f,"%d",&i); 
            fclose(f); 
            printf("%d",i); 
            return 0; 
        }

     

    • the program outputs 12A
    • the program outputs 12
    • the program outputs 1
    • the compilation or execution fails
  19. What happens if you try to compile and run this program assuming that fopen() succeeds?

        #include <stdio.h> 
        int main(void) { 
            FILE *f = fopen("file","w"); 
            char c; 
            fputs("12A",f); 
            fclose(f); 
            f = fopen("file","r"); 
            fscanf(f,"%c",&c); 
            fclose(f); 
            printf("%c",c); 
            return 0; 
        }

     

    • the program outputs 1
    • the program outputs 12A
    • the compilation or execution fails
    • the program outputs 12
  20. What happens if you try to compile and run this program?

        #include <stdio.h> 
        int main(void) { 
            FILE *f = fopen("file","w"); 
            float f; 
            fputs("12A",f); 
            fclose(f); 
            f = fopen("file","r"); 
            fscanf(f,"%f",&f); 
            fclose(f); 
            printf("%f",f); 
            return 0; 
        }

     

    • the program outputs 1.000000
    • the compilation or execution fails
    • the program outputs 0.000000
    • the program outputs 12.0000000
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