True however it’s also depends on where you live but for this purpose it’s true
Answer:
I think its 4 I'm not so sure though
Answer:
sequential files
Explanation:
Q:
Data files whose records are always retrieved in sequence from the beginning of the file are
A:
sequential files
Answer:
The correct answer is C. Sometimes.
Explanation:
A database index is a structure that aims to speed up selections and selective operations on a database. An index reduces the number of comparisons required to find one or more database records. This avoids having to perform a so-called full table scan, whereby all records in the table have to be run through sequentially.
Therefore, if the search does not focus correctly on the necessary data, this search will not always determine the index of the goal. Therefore, the user must correctly handle the search keywords to collaborate with the system.
Answer:
Yes
Explanation:
Check MongoDB on Github and you will see that it is open source.
