CDW110 EXAM 2026-2027 EXAM| GRADE A QUESTIONS AND VERIFIED ANSWERS | 100% Correct
QUESTION
-A foreign key column in Caboodle contains the value â€3. What could this mean?
Answer:
There are two possibilities: Either the data that once populated this row in Caboodle has been
deleted from the source or this is the row with â€3 as its primary key, for which all foreign key
columns are also â€3. To know which is true, check the primary key value for the given row: a
nonâ€negative value indicates that this row represents deleted data in the source.
QUESTION
-If a foreign key is null in Clarity, what will appear in the corresponding column in Caboodle?
Answer:
If the foreign key was null in the source, then a â€1 will appear in Caboodle to represent an
unspecified value. If the foreign key's data lineage was not defined by the source package that
loaded data for a particular row, then a â€2 will appear in Caboodle to represent a value that is not
applicable.
QUESTION
-A row in a Caboodle table has a primary key value of â€2. What value will be stored in nonâ€
foreign key columns with a data type of "Date" for this row?
A. â€2
B. NULL
C. 12/31/1840
D. *Not Applicable
Answer:
B. NULL
For the row with a primary key of â€2, foreign key columns will store a value of â€2, string
columns will
Store '*Not Applicable', and all other data type columns will store NULL.