ELEVATE SKILLS!
Q: 1 If an error happens every two days, what is the probability that the system will not fail for four days?
0.0625
0.375
0.25
0.5
[ Option A ]
If an error happens every two days, it implies the probability of failure in a day = 1/2, so the probability that the system does not fail in a day = 1-1/2 = 1/2.
Assuming independence, the probability that the system will not fail for four consecutive days is: (1/2)4 = 1/16 = 0.0625
Q: 2 If a process fails, most operating system writes the error into a _____________.
Executable File
Log File
Segment Table
Page Table
[ Option B ]
When a process fails or an error occurs, the operating system records the details of the error in a Log File. A log file is used to store information about system activities, errors, warnings, and events, which helps in debugging and troubleshooting.
| TERM | PURPOSE |
|---|---|
| Log File | Stores error and event information. |
| Executable File | Contains program instructions to run. |
| Segment Table | Used in memory management. |
| Page Table | Used in paging for address mapping. |
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