M12 MRAT

Question 1

In an Enterprise deployment, what is the maximum number of Front End servers that you can deploy in a pool to provide for high availability?

Answer 1

10. We recommend that you install more Front End servers than required for the total load. This enables the system to continue functioning if one server fails. The server that failed can then be patched or managed without impacting the production installation. An Enterprise pool may contain 1-10Front End server members.

Question 2

What types of information are stored in the Back End server databases?

Answer 2

Presence information, users’ Contacts lists, and conferencing data including persistent data about the state of all conferences and conference scheduling data.

Question 3

DNS load balancing is used to balance SIP and media traffic. Which of the server role pools support the use of DNS load balancing?

Answer 3

Front End pools, Edge server pools, Director pools, and stand-alone Mediation server pools.

Question 4

Do Front End server pools require hardware load balancing if DNS load balancing is used?

Answer 4

Yes. Front End server pools require HLBs for true high availability regardless of whether DNS load balancing is used.