Which node type does not deploy a Nutanix Controller VM?
Correct Answer:C
A Compute Only node is a node that does not have any local storage devices and only provides compute resources to the cluster2. A Compute Only node does not run a CVM, but instead relies on the CVMs of other nodes to access the distributed storage fabric2
Which scenario would benefit most from Erasure Coding being enabled on a container?
Correct Answer:A
The correct answer is A. Long term storage of data which is written once and read infrequently.
Erasure Coding is a feature that increases the usable capacity on a Nutanix cluster by reducing the amount of data replication. Instead of replicating data, Erasure Coding uses parity information to rebuild data in the event of a disk failure. The capacity savings of Erasure Coding is in addition to deduplication and compression savings1.
Erasure Coding is most beneficial for scenarios where the data is written once and read infrequently, such as long term storage of archival data, backup data, or cold data. This is because Erasure Coding has some trade-offs and limitations that may affect the performance and availability of the cluster. Some of these trade-offs and limitations are2:
✑ Erasure Coding requires more CPU and memory resources than replication, as it
involves more complex calculations for encoding and decoding data.
✑ Erasure Coding increases the network bandwidth consumption, as it involves more data transfers between nodes for encoding and decoding data.
✑ Erasure Coding reduces the resiliency of the cluster, as it can tolerate fewer node failures than replication. For example, a cluster with redundancy factor 2 can tolerate one node failure with replication, but only two disk failures with Erasure Coding.
✑ Erasure Coding is not effective for workloads that have many overwrites or random writes, as it involves more overhead for updating the parity information.
✑ Erasure Coding is not supported for some features, such as volume groups, file
server VMs, or Metro Availability.
Therefore, if an administrator needs to configure a container on a Nutanix cluster, they should enable Erasure Coding only if the container will store data that is written once and read infrequently. This way, they can maximize the capacity savings of Erasure Coding without compromising the performance and availability of the cluster.
Reference: Erasure Coding | Nutanix Community
An administrator has set up a local web server accessible to the Nutanix clusters.
Which two steps are required to set up LCM for an environment without Internet access? (Choose two.)
Correct Answer:BD
An Administrator has been asked to deploy VMs using a specific image. The image has been configured with settings and applications that will be used by engineering to develop a new product by the company.
The image is not available on the desired cluster, but it is available in other cluster associated with Prism Central.
Why isno??t the image available?
Correct Answer:C