CTFL_SYLL_4.0 · Question #203
Which sequence of state transitions is INCORRECT in accordance with the following description? To provide for disaster recovery a system (designated as A) has been provided with a backup system…
The correct answer is A. A and B are both down then A and B both come back up at the same time. A should become. According to the description provided, when both systems A and B come back up at the same time, the process should involve a decision about which system should become active. However, the description states that if both systems come up simultaneously, one should become active…
Question
Which sequence of state transitions is INCORRECT in accordance with the following description? To provide for disaster recovery a system (designated as A) has been provided with a backup system (designated as B). Only one of them can be active at a time. When A goes down, B becomes active. When A comes back up then B becomes inactive and A becomes active again. However, when A is down and B also goes down then a message is sent to the system administrator. After this once A comes back up, A becomes active or if B comes up then B becomes Active.
Options
- AA and B are both down then A and B both come back up at the same time. A should become
- BA is active and B is inactive. A goes down. B becomes active then B goes down. A is made
- CA is active and B is inactive then A goes down, B becomes active.
- DA comes up when B is active and A was down. Now A becomes active and B becomes
How the community answered
(47 responses)- A55% (26)
- B11% (5)
- C6% (3)
- D28% (13)
Explanation
According to the description provided, when both systems A and B come back up at the same time, the process should involve a decision about which system should become active. However, the description states that if both systems come up simultaneously, one should become active based on a specific condition or precedence. Generally, in disaster recovery systems, there are protocols to avoid both systems becoming active simultaneously to prevent conflicts. Therefore, the transition where both A and B come back up at the same time and A becomes active while B becomes inactive without any conflict or decision-making step is incorrect.
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