Disk Defragmenter
A disk defragmenter is a utility that reorganizes the files and unused space on a computer's hard disk so that the operating system accesses data more quickly and programs run faster.
Answer:
d. Ensure file caching and flushing are enabled for all disk drives.
Explanation:
When the disk reading and writing is delayed and the server performance is also slow after taking over management of a server.Previously the server has several server components.So to increase the performance we should ensure caching of the file and make sure that the flushing is enabled for all disk drives.Hence the answer to this question is option d.
Computed columns in SQL are calculated columns where the value of the column will be automatically inserted according to the formula specified.
Suppose Net salary = Gross_salary – PF, so this can be created as,
Create table Employee(empno, empname, Basic, HRA, PF, Gross_Sal = Basic+HRA,Net_salary = Gross_salary-PF)
When you query Select * from Employee, all the fields along with the calculated column values will get displayed. Even if you update on the field, changes will be automatically done in calculated column.
Answer:
the 1st one I believe
Explanation:
because plagiarism means to copy someone else work without permission. Example- if you are writing an essay and copy something off the internet and call it your own that's plagiarism