Answer:
b
Explanation:
It is not "import sqrt" because import is used to add a module, and "sqrt" is not a module.
It is not sqrt(16) because we need to use the math. prefix so that python recognizes that sqrt is a function from the math module.
Answer:
B. audit trail
Explanation:
A(n) audit trail records the activities of computer operators surrounding each event in a transaction.
Answer:
Explanation:
To maintain data consistency and integrity in a large multi-user system, transactions are completed concurrently with the aid of concurrency management techniques.
The following are some of the benefits of concurrent transaction processing and execution versus serial transaction processing and/or execution:
Improved Resource Usage:
A transaction frequently combines both CPU and Input/output activities, resulting in better resource usage. Computers have the ability to run disks and CPUs in parallel. As a result, transactions can also be executed in parallel, with one employing the usage of the CPU and the other using the disk. As a result, resources are better used than in serial transaction processing and execution.
Improved throughput:
Running transactions in parallel has an immediate impact of increasing throughput since a greater number of transactions can be completed in the same period of time.
Lower/shorter waiting time:
Reduced wait time: When transactions are processed sequentially and serially, a short transaction is forced to wait for a longer transaction. Because transactions usually affect distinct portions of the database. As such, it's best if they happen at the same time i.e it is run concurrently.
The characteristics listed above are critical to a system's performance.
Thus, It is obvious that the benefits of concurrency exceed the extra programming work necessary to execute transactions concurrently. As a result, database systems must handle concurrent transactions despite the additional work necessary since it is worthwhile.
Answer:
C. use GZIP compression to export the data
Explanation:
GZIP compression is used to improve transfer speed trough network.
GZIP compression enables <em>smaller</em> file sizes, which leads extracting faster.
GZIP compression is also used for server-side webpages, so that the webpage is uploaded faster.
Once data is compressed with GZIP, it is decompressed by the same application after transmission.
Answer:
The students who buy lunch are not getting enough time to socialize/ eat lunch because they spent it standing in line
Explanation:
That would be my guess, hope this helps