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2 years ago

What elements are needed in a workstation domain policy regarding use of antivirus and malicious software prevention tools?

1 answer:

3 0

The server should be able to block unauthorized access, a good firewall but still, enable those authorized to have an access. However, there should be security on vulnerable parts of the system that may lead to corruption and easy access to data thieves.

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Write a program named edit_data.py that asks a person their age. Accept an int. Use a custom exception to return a message if th

Katena32 [7]

An exception is an error that happens during the execution of a program. Exceptions are known to non-programmers as instances that do not conform to a general rule. The name "exception" in computer science has this meaning as well: It implies that the problem (the exception) doesn't occur frequently, i.e. the exception is the "exception to the rule". Exception handling is a construct in some programming languages to handle or deal with errors automatically. Many programming languages like C++, Objective-C, PHP, Java, Ruby, Python, and many others have built-in support for exception handling.

Error handling is generally resolved by saving the state of execution at the moment the error occurred and interrupting the normal flow of the program to execute a special function or piece of code, which is known as the exception handler. Depending on the kind of error ("division by zero", "file open error" and so on) which had occurred, the error handler can "fix" the problem and the programm can be continued afterwards with the previously saved data.

5 0

2 years ago

Write a program whose input is two integers and whose output is the two integers swapped. Ex: If the input is: 3 8 the output is

Misha Larkins [42]

Answer:

The program to this question can be given as:

Program:

def swap_values(user_val1, user_val2): #define function

return (user_val2, user_val1) #return values

if __name__ == '__main__': #define constructor.

n1 = int(input('Enter first number :')) #input value form user

n2 = int(input('Enter second number :')) #input value form user

(n1,n2) = swap_values(n1,n2) #hold function values.

print(n1) #print values

print(n2) #print values

Output:

Enter first number :3

Enter second number :8

Explanation:

The explanation of the above python program can be given as:

In the python program we define a function that is "swap_values". This function takes two integer values that is "user_val1 and user_val2" as a parameters and returns variable values that is "user_val2 and user_val1".
Then we use a constructor in this we define two variable that is "n1 and n2" these variable are use to take user-input from the user and pass the value into the function.
To hold the value of the function we use n1 and n2 variable and print these variable value.

4 0

2 years ago

Referential integrity constraints are concerned with checking INSERT and UPDATE operations that affect the parent child relation

Jet001 [13]

Answer:

a) true

Explanation:

In Computer programming, integrity constraints can be defined as a set of standard rules that ensures quality information and database are maintained.

Basically, there are four (4) types of integrity constraints and these are;

1. Key constraints.

2. Domain constraints.

3. Entity integrity constraints.

4. Referential integrity constraints.

Referential integrity is a property of data which states that each foreign key value must match a primary key value in another relation or the foreign key value must be null.

For instance, when a foreign key in Table A points to the primary key of Table B, according to the referential integrity constraints, all the value of the foreign key in Table A must be null or match the primary key in Table B.

Hence, the referential Integrity constraints ensures that the relationship between the data in a table is consistent and valid.

Hence, referential integrity constraints are concerned with checking INSERT and UPDATE operations that affect the parent child relationships.

<em>This ultimately implies that, referential Integrity are rules used in database management systems (DBMS) to ensure relationships between tables when records are changed is VALID (INSERT and UPDATE).</em>

<em>In a nutshell, it always ensures a primary key must have a matching foreign key or it becomes null. </em>

6 0

2 years ago

Write code which takes a user input of a String and an integer. The code should print each letter of the String the number of ti

il63 [147K]

import java.util.*;

public class myClass {

public static void main(String args[]) {

Scanner scan = new Scanner(System.in);

System.out.print("Input a String: ");

String str = scan.nextLine();

System.out.print("Input an integer: ");

int num = scan.nextInt();

for(int i=str.length()-1; i>=0; i--) {

for(int j=0; j<num; j++) {

System.out.print(str.charAt(i));

}

8 0

2 years ago

Which of the following is considered technology?

nevsk [136]

A. computer
computer because computer is technology and pencil is not and spoon.

8 0

2 years ago