Exam 350-801 topic 1 question 20 discussion

Thinking this should be A: Manual fallback—When you initiate a manual fallback, the Cisco Server Recovery Manager restarts critical services on the primary node and disconnects all users that had been failed over. Those users must then re-login to their assigned node. Source: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/11_0_1/sysConfig/CUCM_BK_C733E983_00_cucm-system-configuration-guide-1101/CUCM_BK_C733E983_00_cucm-system-configuration-guide-transformed_chapter_011010.html

After a failover, when the failed node comes online again, the clients automatically reconnect to the local IM and Presence Service node if you have configured automatic fallback. If you have not configured automatic fallback, you can manually initiate the fallback when the failed node comes online. Now, when you initiate a manual fallback, the Cisco Server Recovery Manager restarts critical services on the primary node and disconnects all users that had been failed over. Those users must then re-login to their assigned node. So, answer is A. Reference: Configure Redundancy and High Availability https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/im_presence/configAdminGuide/11_5_1/cup0_b_config-and-admin-guide-1151su5/cup0_b_imp-system-configuration-1151su5_chapter_0100.pdf

Did it many times, users must not relogin. Maybe a version dependancy?

A should be correct

Answer is A

Correct answer is A: Manual Failover, Fallback, and Recovery Use Cisco Unified Communications Manager Administration to initiate a manual failover, fallback, and recovery for IM and Presence Service nodes in a presence redundancy group. You can also initiate these actions from Cisco Unified Communications Manager or IM and Presence Service using the CLI. See the Command Line Interface Guide for Cisco Unified Communications Solutions for details. • Manual failover: When you initiate a manual failover, the Cisco Server Recovery Manager stops the critical services on

I believe B is the correct answer. The reason is that the default configuration for Manual Fallback is for the Jabber client to apply the re-log in upper and lower limits for the fallback. These values can be modified in CUCM at System > Service Parameters > Set the Server as the Imp Server and set the service as Cisco Server Recovery Manager. Then look toward the bottom at Configure Re-Login limits. The default value for Lower limit is 120 seconds. The default value for Upper limit is 953 seconds. This parameter prompts the Jabber client to log back into the services. This works for both Manual and Automatic Fallback. Automatic fallback is disabled by default, but can also be enabled by toggling true in the same service parameter as the Client Re-Login Upper and Lower Limit values. I tested it and it works. Also - Manually rehoming the user to between publisher and subscriber also automatically logs the user into that node's respective services.

Should be A

The Answer is A

• Manual fallback: When you initiate a manual fallback, the Cisco Server Recovery Manager restarts critical services on the primary node and disconnects all users that had been failed over. Those users must then re-login to their assigned node.

B is correct , users doesn't have to re-login User Failover Process When a failover takes place(automatic or manual), the major point to remember is that the user account is not moved from one server to the other, but only the user session in Presence Engine is moved. In pre-10 versions of IM and Presence, the user assignment was moved from one server to the other. This user move was very expensive to server resources and added to the load that was on the server. In 10.X and later, the user stays homed on the server that they are assigned to, and the backend user session in the Presence Engine is moved from the failed node to the functional node. The user does not have to exit Jabber and re-log in when the change happens with Server Recovery Manager(SRM).

• Manual fallback: When you initiate a manual fallback, the Cisco Server Recovery Manager restarts critical services on the primary node and disconnects all users that had been failed over. Those users must then re-login to their assigned node. Answer found here: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/im_presence/configAdminGuide/10_5_2/CUP0_BK_CEB3E82E_00_config-admin-guide-imp-1052/CUP0_BK_CEB3E82E_00_config-admin-guide-imp-1052_chapter_010000.pdf

Answer should be A "Manual fallback: When you initiate a manual fallback, the Cisco Server Recovery Manager restarts critical services on the primary node and disconnects all users that had been failed over. Those users must then re-login to their assigned node"

Do the users really have to log in again? In my fallback experience they get disconnected then automatically find the primary server, takes about a minute.

"the users(all)" is differente to "those users(users that had been failed over)" could be B. Tricky

Answer should be A