Multiple choice technology

When NDM is used?

  1. When there is one appserver

  2. When there are many appservers

  3. During both a and b

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

NDM (likely Network Dispatch Module or similar dispatcher component) is used when there are many application servers. In multi-server environments, a dispatcher or load distribution mechanism is needed to route requests efficiently across multiple appserver instances. When only one appserver exists, direct communication is sufficient without the overhead of a dispatching component. Options C and D incorrectly suggest NDM is used in single-server scenarios or not at all.

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