Final answer:
The function described by the truth table is the logical AND function, which returns true only when both input variables are true.
Step-by-step explanation:
The function described by the given truth table is AND. An AND function returns true only when both input variables are true; otherwise, it returns false. In the truth table, true values are represented by 1 and false values by 0. For an AND function, the output is true only when both input variables are 1, and false for all other combinations.