A title slide contains both title and subtitle placeholders

Answer the following questions true (T) or false (F)

1. Mergesort requires us to store the entire array of key values in internal memory before we can begin the merge operation. 2. External mergesort begins by merging sorted runs. 3. When we perform external hashing, we hash the data file instead of the index file.

25 % 1 is _____

a. 1 b. 2 c. 3 d. 4 e. 0