True$|$False: In a RDBMS$,$ a view is a snapshot of certain data in the database at a given moment in time.

$$ True

False

Question $155$

$1\mathrm{.}25$ pts

True$|$False: Normally, a company may appoint at least one DBA to manage the DBMS$,$ and to perform all database administration tasks.

True

False

Question $156$

$1\mathrm{.}25$ pts

Data $$ means that we can change some database structures without the need to change our existing programs that can still access the database successfully. $($hint: in $$ ce$)$