CompTIA Data+ Practice Exam

The function used in Excel for looking up a value in a table is VLOOKUP. This function searches for a specified value in the first column of a table and returns a corresponding value from a specified column in that table. It is particularly useful when you need to find information associated with a key value, such as retrieving a price based on a product ID. VLOOKUP operates by taking four arguments: the value to look for, the range of the table, the column number from which to retrieve the information, and a logical value indicating whether you want an exact match or an approximate match. This makes it essential for tasks that involve searching within a dataset. The other functions mentioned serve different purposes. SUM adds up a range of numbers, COUNT tallies the number of cells that contain numbers in a specified range, and PIVOT refers to PivotTables, which are used for summarizing and analyzing data rather than direct lookups. Therefore, VLOOKUP is distinctly suited for the specific function of looking up values within a table.