Exam 350-801 topic 1 question 16 discussion

Given the question, I would say the correct answer is A. The TFTP service can be enabled on any node. A phone can only point to (2) TFTP servers in it's settings, but that is not what this question is asking.

The TFTP Service itself can be enabled on any node regardless of the node's purpose.

B. any two nodes

Why not C can anyone explain please?

correct is A: any node Find in study guide: Depending on the number of devices that a server supports, you can run the TFTP service on a dedicated server, on the database publisher server, or on any other server in the cluster.

correct Answer A

I designed this in various ways

(1) No Cisco Guide is explaining an active Cisco Unified CM service as mandatory for TFTP (2) i checked it on one of our customers, it's not necessary. We use two CUCM Subs only for CTI, TFTP, MTP, CFB, no Callmanager Service is active there

A. From the SRND: The Cisco TFTP service that provides this functionality can be enabled on any server node in the cluster. However, in a cluster with more than 1250 users, other services might be impacted by configuration changes that can cause the TFTP service to regenerate configuration files. Therefore, Cisco recommends that you dedicate a specific subscriber node to the TFTP service, as shown in Figure 9-1, for a cluster with more than 1250 users or any features that cause frequent configuration changes.

2 TFTP servers per cluster

correct answer is A ....B is incorrect,....C is wrong as running TFTP service with UCM service is NOT recommended for small deployments but rather [PUB/TFTP] ....D is wrong as any subscriber node implies any node BUT the Publisher which is incorrect.....BEST practices and Cisco recommendation has always been, deployments > 1200 endpoints to have a dedicated TFTP node otherwise Pub/TFTP same node. ....so the test answer is absolutely wrong. this is clearly spelled out in the SRND ....

The Cisco TFTP service that provides this functionality can be enabled on any server node in the cluster https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab11/collab11/callpros.html

It can be any node or dedicated node

A is correct. The Cisco TFTP service can be enabled on any server node in the cluster. B is not correct because a cluster can have more than two nodes not only two, C doesn't make any sense since Cisco Unified CM is a server, not a service and D is just a recommendation from Cisco so it is not the best choice. Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab11/collab11/callpros.html

Cisco recommends a dedicated publisher to prevent administrative operations from affecting the telephony services. A dedicated publisher does not provide call processing or TFTP services running on the node. Instead, other subscriber nodes within the cluster provide these services.

If there are any Cisco moderators out there, this is the type of question that drives me nuts. There are no restrictions as to how many servers in the cluster CAN run the TFTP service. All of the Cisco design guides indicate that TFTP SHOULD be run on two servers for redundancy purposes. I get the feeling Cisco wants you to answer "any two nodes" with the design guide in mind. The question asks "can" and not "should" and so I would answer "any node". I didn't know that being a voice engineer required an advanced degree in English.

Answer A. On larger systems with more than 1250 users, Cisco recommends a dedicated publisher to prevent administrative operations from affecting the telephony services. A dedicated publisher does not provide call processing or TFTP services running on the node. Instead, other subscriber nodes within the cluster provide these services. TFTP Redundancy: Cisco recommends deploying more than one dedicated TFTP subscriber node for a large Unified CM cluster, thus providing redundancy for TFTP services. While two TFTP subscribers are typically sufficient, more than two TFTP server nodes can be deployed in a cluster. SRND: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab11/collab11/callpros.html#15081