Why did we cut both segments of DNA with the same restriction enzyme?

We cut both segments of DNA with the same restriction enzyme to ensure that the resulting DNA fragments have compatible ends, allowing them to be easily ligated together. Using the same enzyme creates cohesive or blunt ends that facilitate the seamless joining of different DNA pieces in cloning or recombinant DNA techniques. This consistency also ensures that the cuts are made at specific, predictable sequences, enhancing the efficiency and accuracy of the manipulation.