CREATE TABLE table_6376 ("Year" TEXT, "Team" TEXT, "Attempts" TEXT, "Completions" TEXT, "Completion %" TEXT, "Yards" TEXT)

Which Completions has Attempts of 1,271?
SELECT "Completions" FROM table_6376 WHERE "Attempts" = '1,271'
SELECT "Completions" FROM "table_6376" WHERE "Attempts" = '1,271'