VMware 2VB-601 Online Practice Questions and Exam Preparation

VMware 2VB-601 Online Questions & Answers

• Question 91:

  What is the minimum number of storage devices required for the cache tier and the capacity tier in a host that is contributing storage capacity to a vSAN datastore?

  A. Once cache device and one capacity device
  B. Two cache devices and six capacity devices
  C. Two cache devices and two capacity devices
  D. One device with two logical partitions ?70% for capacity, 30% for cache
  A. Once cache device and one capacity device

• Question 92:

  Which vSAN cluster design should be consider for maximum availability?

  A. three-node configuration with multiple disk groups
  B. two-node configuration with a single disk groups
  C. four or more-node configuration with multiple disk groups
  D. two-node configuration with multiple disk groups
  C. four or more-node configuration with multiple disk groups

• Question 93:

  Which two statements are true? (Choose two.)

  A. Storage policies define VM storage requirements, such as performance and availability
  B. vSAN will not automatically assign a storage policy to a VM
  C. A default storage policy must be created for vSAN by the administrator
  D. The default vSAN storage policy is used unless a different storage policy is selected
  E. The administrator uses the ESX host console to view, create, and modify policies
  A. Storage policies define VM storage requirements, such as performance and availability
  D. The default vSAN storage policy is used unless a different storage policy is selected

• Question 94:

  When implementing vSAN stretched clusters, bandwidth requirements between the preferred and secondary sites are determined by which factors?

  A. Total number of read operations and block size
  B. Total number of components and block size
  C. Total number of write operations and block size
  D. Total number of read operations, total number of write operations and block size
  C. Total number of write operations and block size

• Question 95:

  Which of the listed three vSAN features provide space efficiency? (Choose three.)

  A. Checksum
  B. Two-node cluster
  C. Sparse swap files
  D. RAID-5/6 erasure coding
  E. Deduplication and compression
  C. Sparse swap files
  D. RAID-5/6 erasure coding
  E. Deduplication and compression

  ---

  One of the Space Efficiency features of Virtual SAN 6.2 that is available for both All-Flash and Hybrid configurations, is the introduction of Sparse Virtual Swap files. Swap files on Virtual SAN by default, are created with the .vswp 100%

  reserved. In a thin provisioned/guaranteed capacity perspective, it could be said that they are effectively Lazy Zeroed Thick (LZT).

  RAID-5/6 erasure coding is a space efficiency feature optimized for all-flash configurations of Virtual SAN 6.2.

  Virtual SAN 6.2 introduces space efficiency features optimized for modern all-flash storage, designed to minimize storage capacity consumption while ensuring availability. One of these features is near-line deduplication and compression.

  References:

  https://blogs.vmware.com/virtualblocks/2016/02/24/vsan62-powercli-sparse-vswp/

  https://www.vmware.com/files/pdf/products/vsan/vmware-vsan-62-space-efficiency-technologies.pdf

• Question 96:

  An administrator is designing a vSphere cluster with the VSAN default policy. The requirement is to maintain full redundancy of data and virtual disks during any patching or maintenance of this cluster. What is needed to meet the needs of this scenario?

  A. A minimum of four hosts in the cluster
  B. VMware Proactive HA
  C. Multiple disk groups per host
  D. Use of RAID-5/6 erasure coding
  A. A minimum of four hosts in the cluster

  ---

  When not using a witness, there is a minimum requirement of 3 ESXi hosts in a vSAN cluster. This is the same for all versions. While vSAN fully supports 3-node configurations, they can behave differently than configurations with 4 or greater nodes. In particular, in the event of a failure there is no way for vSAN to rebuild components on another host in the cluster to tolerate another failure. Also with 3-node configurations, vSAN does not have the ability to migrate all data from a node during maintenance.

  Design decision: Consider 4 or more nodes for the vSAN cluster design for maximum availability References: VMware vSAN Design and Sizing Guide. Page: 51

• Question 97:

  Which three virtual machine file types are contained in a VM home namespace object in a vSAN cluster? (Choose three.)

  A. .vmx
  B. .swap
  C. .log
  D. .memory
  E. .nvram
  A. .vmx
  C. .log
  E. .nvram

  ---

  The virtual machine home directory where all virtual machine configuration files are stored, such as .vmx, log files, vmdks, and snapshot delta description files. The VM Home Namespace is where we store all the virtual machine configuration files, such as the .vmx, .log, digest files, memory snapshots, etc.

  The .nvram file: this is the file that stores the state of the virtual machine's BIOS. This file is stored in the same directory as the .vmx file.

  Reference: https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID-1D8956A2-3F46-49C8-9231-38F3A9D09A0F.html

• Question 98:

  Which vSAN health check category monitors cluster items to help ensure supported hardware, software, and drivers are being used?

  A. Cluster
  B. vSAN Object Health
  C. Hardware Compatibility
  D. Component Metadata Health
  C. Hardware Compatibility

  ---

  Hardware Compatibility- Monitor the cluster components to ensure that they are using supported hardware, software, and drivers. Reference:https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID68CDE86F-C5A7-4B3E-9DA8-BD8165D3A9AF.html

• Question 99:

  What is the Storage-Based Management framework primarily used for?

  A. Providing a single unified control plane across a broad range of data services and storage solutions
  B. Defining target deduplication and compression ratios and distributing workloads to optimize space efficiency based on the defined targets
  C. Ensuring an appropriate RPO is assigned and monitored using either synchronous or asynchronous replication of a datastore
  D. Reducing the latency on datastores by distributing IO across physical devices by abstraction and pooling of resources
  A. Providing a single unified control plane across a broad range of data services and storage solutions

  ---

  Reference: https://vmware.github.io/vsphere-storage-for-kubernetes/documentation/policy-based-mgmt.html

• Question 100:

  A six-node all-flash vSAN cluster has been deployed. Deduplication and compression are enabled. All virtual machines are produced by policies with the rule Primary level of failures to tolerate set to 1.

  How is a vSAN disk group impacted when the cache device belonging to that disk group fails?

  A. The capacity devices are automatically reassigned to another disk group in the same host.
  B. The cache device is marked "Absent". A capacity device is automatically promoted to a cache device to minimize downtime.
  C. The cache device is marked "Degraded". The disk group remains online with lower performance levels.
  D. The disk group is taken offline.
  A. The capacity devices are automatically reassigned to another disk group in the same host.

  ---

  When a flash caching device fails, vSAN evaluates the accessibility of the objects on the disk group that contains the cache device, and rebuilds them on another host if possible and the Primary level of failures to tolerate is set to 1 or more.