Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_79 (year VARCHAR, make_ VARCHAR, _model VARCHAR)
### Question:
What year has a make & model of mci d4000n?
### Answer:
SELECT year FROM table_name_79 WHERE make_ & _model = "mci d4000n"