The only sure way to prevent SQL Injection attacks is input validation and parametrized queries including prepared statements. The application code should never use the input directly. ... Database errors can be used with SQL Injection to gain information about your database.
Answer:
The answer to this question is "true".
Explanation:
In this question, the answer is true because The use of formatting provides changes in the data presentation, not in the data. It is also known as layout.
The layout or formatting is important for two reasons that can be given as:
1) It makes your data like a formatted data.
2) It helps to make your data more readable.
Answer:
solution attached.
Explanation:
Also, the tetha time complexity of T_upper would be 
Answer:
True
Explanation:
Run-time parameters passed to a function allow you to use different values each time the function is called. Let us consider an example:
int add(int a,int b){
return a+b;
}
Now we can execute the same function with different parameters at runtime:
add(3,4) returns 7.
add(1,2) return 3.
add (10,1) return 11.
During each invocation , the formal function parameters are substituted by actual runtime values and the function code is executed.
