A differential is the degree of adjustment to the value or grade of physical deliverables, or to their location, as permitted by a futures contract. While not true for all, some futures contracts permit differentials, also known as an allowance. Such futures contracts permit the short position to make adjustments to the location of delivery and/or the grade or standard of the commodity or security to be delivered. These differentials are established on the par basis grade or in relation to a central location.

1. If a system is not properly tested during the scanning and gaining access phase, a _________ can gain illegal access to it.

2. Which phase sees the hackers install backdoors so that they can later retain ownership of the victim's system?

3. _______ is the instrument used in this manner.

4. Which of the following hacking tools and methods does not allow hackers to maintain system access?

5. The hackers attempt to hide their footprints during the _______ phase.

6. Which of them isn't a track clearing strategy?

7. __________ is the final stage of the process of ethical hacking.

8. Which of the following is not a tool for looking for footprints?

11. In ethical hacking, which of the following occurs after the scanning phase?

12. In __________ stage the programmer takes advantage of the organization or framework weaknesses.

13. In the gaining access phase, which of the following is not carried out?

14. Which of the following tools for penetration testing is most commonly utilized during the gaining access phase?