Which of following statements about the possible reasons that cause web server vulnerabilities are true? (the number of correct answers: 2) Score 1

Which of following statements about the possible reasons that cause web server vulnerabilities are true? (the number of correct answers: 2) Score 1
A . Bugs generated during common component development
B . Hardware configuration is not up to date
C . Software used or OS itself contain some logic flaw
D . End user didn’t follow the user manual

Answer: A,C