Multiple choice technology databases

What are the the 3 essential fields required for a DL/I call ?

  1. Function Code

  2. PCB Mask

  3. SSA

  4. I/O Area

Reveal answer Fill a bubble to check yourself
A,B,D Correct answer
Explanation

The three essential fields for a DL/I call are: Function Code (what operation - GU, GN, ISRT, etc.), PCB Mask (which database/PCB to use), and I/O Area (where segment data is placed). SSA (Segment Search Argument) is NOT essential - it's only required when you need to navigate to specific segments. Many calls can work without SSA.