The two devices in a computer that should be considered "black boxes," and should never be opened due to risks involving charged capacitors are MONITOR and POWER SUPPLY.
Explanation:
- Physical contact or close proximity to the open power supply caused a discharge from the capacitor that resulted in an electric shock. Capacitors can discharge current even when not energized because they hold a charge for some time after the power is turned off.
- To do harm to your body, the voltage across the capacitor's terminals must be high enough to cause a harmful effect on you. There are no hard rules for at what voltage things become harmful, but a common 'rule of thumb' is that DC up to 48 Volt is considered low voltage. So a capacitor charged to a voltage below 48 V is fairly safe.
- A charged capacitor can be very dangerous, so it's important that you avoid coming into contact with the terminals at all times.
Answer:
A and B
Explanation:
EC2 run command gives a management output to review various instances and servers. Here, the logging files, collecting metrics and patches, running script installations can be achieved.
Verify the user permission and the run command, confirms if whether or not the problem of missing logging files is from the settings.
There are several AWS and customer managed policies for cloudwatch logs to give users certain levels for permission. Verifying this determines if there is full access, group logs and creation of group log events, or even a read only access.
