1. The correct answer is A.B.C.D;
Option A, the firmware version cannot support the new cloud version, which causes the device to be offline.
Options B and D is the situation that device power off and network disconnection. Generally, we must first check these two when the device is offline.
Option C, The Mac address may be changed if the device has been done factory upgrades. So the new MAC does not in MAC library and project.
2. The correct answer is A.B.C;
3. The correct answer is B.C;
In this solution, A01 as a card reader module of A094. So only A094 need to be added to cloud because it is an access control system and will receive card information from A01.
Therefore, A01 should be set as output to send data and A094 should be input.
4. The correct answer is C.D;
Option A and C, NC-2 has a separate power input port and a PoE power output port. Please refer to http://community.akuvox.com/forum.php?mod=viewthread&tid=309
Option B, The usage of NC-2 is actually the solution mentioned in D.
Points have been issued, congratulations to the top 5 @Ryan.Flack @CIE_Ash @dava @judy @autumn for getting 70 points, and other participants getting 20 points.
