What risk relates to insecure direct object references?

a- references can be altered to gain access to unauthorized data.

b- references can be deleted.

c- references can be copied and used to attack other databases.

d- there is no risk

Write code using c . (take input from user) calculate the size of a given file in kbs. in this task you will complete the function with the following prototype: float get_file_size(char * filename); the function takes the file name (address to the start of a null terminated character array) as input. the function should then open the file and find the number of bytes it contains till eof. the number of bytes divided by 1024 will give the size in kbs. if the file cannot be opened the function should return -1.

Write c function that can replace all the positive elements to 0 and negative to 1 in undefined length one-dimensional array. test your program in the main program by defining one-dimensional array of 6 elements

Give an example of a case where a two-way handshake to establish a connection could leave one side of the connection live while the other side does not believe there is a connection.