Complete the blanks in the following question with the appropriate answer.
Luke has just bought 7 disk drives and grouped them together into a single logical drive so he could back up all funny cat pictures from the internet. Luke’s drive usage can be described as a sustained workload of 200,000 write operations per second with the following distribution:
- 512 bytes - 20% of all operations
- 1024 bytes - 30% of all operations
- 4096 bytes - 40% of all operations
- 16384 bytes - 10% of all operations
Each write operation appends sequentially to an individual drive, and the load is evenly distributed among all drives. There is no compression, garbage collection, or redundancy elimination involved.
Assuming each drive has a capacity of exactly 513 GiB (1 GiB = 1024 MiB, 1 MiB = 1024 KiB, 1 KiB = 1024 bytes), how soon will Luke’s array be filled from completely empty to 86%? (At that point, Luke should probably consider buying more few disks?) Please round the answer to minutes.
Answer: __________ minutes
Complete the blanks in the following question with the appropriate answer.
Suppose you want to store the following properties per each memory page:
- Page status - one of:
a) In use (has some useful data)
b) Dirty (stored data previously, ready to be reused)
c) Free (never stored any data) - Page index - an integer in range
[0 .. 364847] - Access mode - one of:
a) Read-only
b) Write-only
c) Execute-only
d) Can read and write
e) Can read and execute
f) Can read, write and execute - Process ID - an integer in range
[0 .. 37337]storing the process ID the page is allocated to
Assuming we need to keep the direct field access API as simple as possible (e.g., we can't have an additional compression layer), what is the minimal number of bytes we need to store a single record?
Answer: __________ bytes
我们长期稳定承接各大科技公司如TikTok、Google、Amazon等的OA笔试代写服务，确保满分通过。如有需求，请随时联系我们。
We consistently provide professional online assessment services for major tech companies like TikTok, Google, and Amazon, guaranteeing perfect scores. Feel free to contact us if you're interested.
