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Cisco 500-444 Exam - Topic 8 Question 28 Discussion

Which three statements describe fails in the high availability of Cisco Unified Intelligent Contact Management central controller? (Choose three.)
A) If ICM Logger side A fails, router side B cannot send historical info to ICM Logger side A and is limited to ICM Logger side B. and D) If one ICM call router of a duplex pair of Cisco Unified ICM call routers fails, the surviving ICM call router recognizes the failure when it receives no response to heartbeats over the private LAN. and F) During Cisco Unified ICM call router failover processing, calls in progress in Cisco Unified Customer Voice Portal are disconnected, but all new calls are processed successfully.
B) If the private LAN fails, the Peripheral Gateways are used to help determine the active call router side of the duplex pair.
C) If ICM Logger side A fails, the impact of call processing is limited to ICM call router side A.
E) There is no impact on call processing during a Cisco Unified ICM Logger failure.

Cisco 500-444 Exam - Topic 8 Question 28 Discussion

Actual exam question for Cisco's 500-444 exam
Question #: 28
Topic #: 8
[All 500-444 Questions]

Which three statements describe fails in the high availability of Cisco Unified Intelligent Contact Management central controller? (Choose three.)

Show Suggested Answer Hide Answer
Suggested Answer: A, D, F

A: When ICM Logger side A fails, ICM call router side B can't send historical information to ICM Logger side A and is limited to ICM Logger side B. This is because ICM loggers act as a buffer between ICM call routers and the historical data store, and if one side fails, the other side can't send historical data to it. (Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/icm_enterprise/icm_enterprise_10_5/installation/guide/icm_install/icm_high.html)

D: If one ICM call router of a duplex pair of Cisco Unified ICM call routers fails, the surviving ICM call router recognizes the failure when it receives no response to heartbeats over the private LAN. This is because ICM call routers communicate with each other over a private LAN using heartbeats. If one ICM call router stops sending heartbeats, the other ICM call router knows that it has failed and takes over the processing of calls. (Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/icm_enterprise/icm_enterprise_10_5/installation/guide/icm_install/icm_high.html)

F: During Cisco Unified ICM call router failover processing, calls in progress in Cisco Unified Customer Voice Portal are disconnected, but all new calls are processed successfully. This is because when a Cisco Unified ICM call router fails, the surviving ICM call router takes over the processing of calls. This can cause calls in progress in Cisco Unified CVP to be disconnected, but new calls will be processed successfully. (Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/icm_enterprise/icm_enterprise_10_5/installation/guide/icm_install/icm_high.html)

References: [1]https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/crs/express_8_5/design/guide/icm85des/icm85des_chap_01.html[2]https://www.cisco.com/c/en/us/support/docs/unified-communications/unified-contact-center-enterprise


by Levi at Mar 16, 2024, 12:33 PM

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Wei
9 months ago
B seems off, I thought the Gateways wouldn't help in a LAN failure.
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Jess
9 months ago
D is spot on, heartbeats are crucial for recognizing failures.
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Kathryn
10 months ago
Wait, E can't be right, a Logger failure has to impact something!
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Gabriele
10 months ago
Totally agree, C is also a big issue for call processing.
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Argelia
10 months ago
A is definitely a fail, can't send data if Logger A is down.
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Jacki
10 months ago
I have a vague memory that option E is misleading; I think a Logger failure does impact call processing in some way, but I can't remember how.
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Heidy
11 months ago
I practiced a similar question where we discussed the heartbeats in duplex pairs, so I feel confident about option D being a fail scenario.
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Jenifer
11 months ago
I'm not entirely sure about option C; I remember something about the impact being broader than just one router, but I can't recall the details.
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Luann
11 months ago
I think option A might be correct because if ICM Logger side A fails, it makes sense that router side B would be limited in what it can do.
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Letha
11 months ago
This question is right up my alley! I've studied the Cisco Unified ICM architecture in-depth, so I'm confident I can identify the three correct statements. I'll methodically go through the options and select the ones that align with my understanding of the system's high availability features.
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Susy
11 months ago
Okay, I think I've got a handle on this. The key is to identify the three statements that accurately describe fails in the high availability of the Cisco Unified ICM central controller. I'll carefully consider each option and select the three that best fit the criteria.
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Kris
11 months ago
This question seems to be testing my knowledge of Cisco Unified Intelligent Contact Management (ICM) central controller failures. I'll need to carefully read through the options and think about the impact of each failure scenario.
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Lili
11 months ago
Hmm, this is a tricky one. I'm a bit confused about the differences between the ICM Logger, call router, and Peripheral Gateways, and how they interact in a high availability setup. I'll need to review my notes to make sure I understand the key components and failure modes.
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Micah
11 months ago
This is a tricky one. I'm not 100% sure where that information would be displayed in the Tenant App. I'll have to make an educated guess and hope I can get partial credit if I'm not completely right.
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Carin
11 months ago
I think the key here is to focus on the specific elements that would be part of a comprehensive survey of the base station. Based on the options, that would include the location, the antenna selection, and the equipment installation. I'll mark those choices.
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Shasta
2 years ago
I am not sure about statement E, it seems unlikely that there would be no impact during a logger failure. We should investigate further.
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Lizette
2 years ago
But what about statement E? It says there is no impact on call processing during a Cisco Unified ICM Logger failure.
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Jeannine
2 years ago
I agree with Shasta, statement D makes sense in terms of high availability.
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Shasta
2 years ago
I disagree, I believe statement D is correct. The surviving ICM call router recognizes the failure when it receives no response to heartbeats over the private LAN.
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Lizette
2 years ago
I think statement A is true, because if ICM Logger side A fails, router side B is limited to ICM Logger side B.
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Jordan
2 years ago
I think statement B is also correct, as Peripheral Gateways help determine the active call router.
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Lewis
2 years ago
I believe statement E is incorrect, there is an impact on call processing during a Logger failure.
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Marcelle
2 years ago
I agree, if ICM call router fails, the surviving router recognizes the failure.
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Kirk
2 years ago
I think statements A, D, and F describe the fails in high availability.
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Dianne
2 years ago
Alright, so we've got A and D so far. What about option F - calls in progress getting disconnected during a Router failover?
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Julie
2 years ago
Fingers crossed! And remember, if you get it wrong, you can always blame the confusing wording of the question.
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Mee
2 years ago
Ooh, that one sounds right. The CVP calls would likely get impacted during a Router failover.
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Cory
2 years ago
Nice, I think we've got it - A, D, and F are the winners here. Time to submit our answers and hope for the best!
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Willodean
2 years ago
Can't wait to see if we got them all right!
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Xuan
2 years ago
I think we nailed it with A, D, and F.
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Lenna
2 years ago
Fingers crossed for a good result!
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Lenny
2 years ago
Me too, those options seem to make the most sense.
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Chanel
2 years ago
I'm feeling confident about our choices.
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Thurman
2 years ago
Let's submit our answers and see how we did.
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Dorathy
2 years ago
I agree, A, D, and F are definitely the correct choices.
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