CCNA Compute Questions — Page 4 of 4

226

MCQmedium

An engineer is deploying a HyperFlex cluster with three nodes using all-flash storage and replication factor 2 (RF2). What is the minimum number of nodes required to tolerate a single node failure?

A.3

B.2

C.5

D.4

AnswerA

Correct. Three nodes with RF2 can tolerate one failure.

Why this answer

With RF2, data is replicated to two nodes. If one node fails, the other node still holds a copy, so the cluster continues. However, for strict fault tolerance, a witness VM is needed to avoid split-brain.

Three nodes with RF2 can tolerate one node failure.

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227

MCQeasy

What is the primary function of the Cisco Integrated Management Controller (CIMC) on UCS C-series rack servers?

A.To manage the server's power and cooling via IPMI

B.To provide in-band management through the host OS

C.To provide out-of-band management with KVM, virtual media, and remote firmware update

D.To integrate the rack server into UCS Manager fabric

AnswerC

Correct. CIMC enables remote management even if the host OS is offline.

Why this answer

CIMC provides out-of-band management capabilities such as remote KVM, virtual media, and firmware updates, allowing administrators to manage the server independently of the host OS.

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228

MCQeasy

Which management interface is used for out-of-band configuration and remote KVM access to a standalone UCS C-series rack server?

A.UCS Central

B.CIMC

C.Cisco IMC Supervisor

D.UCS Manager

AnswerB

Correct. CIMC is the embedded management controller for rack servers.

Why this answer

Cisco Integrated Management Controller (CIMC) provides out-of-band management, including remote KVM, virtual media, and firmware updates.

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229

MCQhard

Refer to the exhibit. A UCS domain shows a 'Major' NVRAM backup failure alarm in Intersight. What is the best immediate action?

A.Attempt a manual NVRAM configuration backup from the primary Fabric Interconnect to the secondary.

B.Perform a factory reset on both Fabric Interconnects.

C.Reboot the primary Fabric Interconnect.

D.Reclaim the UCS domain from Intersight and register again.

AnswerA

Manual backup can jumpstart the failed backup process and clear the alarm.

Why this answer

A 'Major' NVRAM backup failure alarm in Intersight indicates that the automatic periodic backup of the UCS domain's configuration from the primary Fabric Interconnect (FI) to the secondary FI has failed. The best immediate action is to attempt a manual NVRAM configuration backup from the primary FI to the secondary, as this directly addresses the backup failure without disrupting domain operations or requiring re-registration.

Exam trap

Cisco often tests the distinction between a configuration backup failure and a hardware or connectivity failure, leading candidates to choose disruptive actions like rebooting or factory resetting when a simple manual backup retry is the correct first step.

How to eliminate wrong answers

Option B is wrong because performing a factory reset on both Fabric Interconnects is a drastic, destructive action that would erase all configuration and cause significant downtime, which is unnecessary for a backup failure that can be resolved manually. Option C is wrong because rebooting the primary Fabric Interconnect would disrupt traffic and may not resolve the backup failure; the issue is likely with the backup process or connectivity, not the FI's operational state. Option D is wrong because reclaiming the UCS domain from Intersight and registering again would remove the domain from management and require re-establishing connectivity, which is an overreaction for a backup failure that can be addressed with a manual backup attempt.

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230

MCQhard

An engineer is deploying a HyperFlex cluster and needs to ensure that if a disk fails in a hybrid node, the system can rebuild the data from parity. Which RAID configuration is required on the disk controller for the cache SSD and HDDs in a HyperFlex hybrid node?

A.RAID 6 for SSD and RAID 0 for HDDs

B.RAID 0 for SSD and RAID 5 for HDDs

C.RAID 10 for both SSD and HDDs

D.RAID 1 for SSD and RAID 5 for HDDs

AnswerB

RAID 0 on SSD provides maximum performance; RAID 5 on HDDs provides redundancy.

Why this answer

In HyperFlex hybrid nodes, the cache SSD is configured as RAID 0 (striping without parity) for performance, while the HDDs can be configured as RAID 5 or RAID 6 for redundancy. For the SSD cache, RAID 0 is typically used because data is replicated at the cluster level.

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