Question # 1
An administrator wants to assign a storage policy to a workload on a two-node vSAN OSA
cluster consisting of three disk groups each with nested fault domains. The virtual machine
must be protected against a disk or disk group failure.
Which two storage policies meet these requirements? (Choose two.) | | A. RAID-5/FTT 2 | | B. RAID-1/FTT 3 | | C. RAID-6/FTT 2 | | D. RAID-5/FTT 1 | | E. RAID-1/FTT 1 |
C. RAID-6/FTT 2
E. RAID-1/FTT 1
Explanation: To protect a virtual machine against a disk or disk group failure, the storage
policy must have a failure tolerance method (FTM) of RAID-1 or RAID-6 and a failure to
tolerate (FTT) value of at least 1. RAID-1 mirrors the data across multiple disk groups,
while RAID-6 uses erasure coding to stripe the data and parity information across multiple
disk groups. RAID-5 is not suitable for this scenario, as it can only tolerate one disk failure
per stripe. FTT 2 or 3 would require more disk groups than available in the
cluster. Therefore, the correct options are C and E. References: 1, page 8; 2, section 3.1
Question # 2
A customer wishes to host a new range of applications with high-performance needs,
specifically, low latency.
The applications are required to be hosted at company-owned edge locations, each with
minimal rack space (three host slots per edge location for this project).
Which deployment options would satisfy the customer's needs, while maximizing the
amount of capacity available per deployment? | A. A new three-node vSAN 8.0 All-Flash Cluster with OSA in each edge location
Each application VM configured with a RAID-5 VM storage policy | B. A new three-node vSAN 8.0 All-Flash Cluster with OSA in each edge location
Each application VM configured with a RAID-1 VM storage policy | C. A new three-node vSAN 8.0 All-Flash Cluster with ESA in each edge location
Each application VM configured with a RAID-1 VM storage policy | D. A new three-node vSAN 8.0 All-Flash Cluster with ESA in each edge location
Each application VM configured with a RAID-5 VM storage policy |
B. A new three-node vSAN 8.0 All-Flash Cluster with OSA in each edge location
Each application VM configured with a RAID-1 VM storage policy
Explanation: To satisfy the customer’s needs for high-performance, low-latency
applications at edge locations, the best deployment option is to use a new three-node
vSAN 8.0 All-Flash Cluster with OSA in each edge location and configure each application
VM with a RAID-1 VM storage policy. This option will provide the following benefits:
All-flash clusters offer the highest performance and lowest latency for vSAN, as
they use flash devices for both cache and capacity tiers. Flash devices have faster
read and write operations than magnetic disks, and they also support advanced
features such as deduplication, compression, and encryption.
OSA stands for One Socket Architecture, which means that each host has only
one CPU socket with multiple cores. This reduces the licensing cost and
complexity of vSphere and vSAN, as well as the power consumption and cooling
requirements of the hosts. OSA also improves the performance of vSAN by
eliminating the NUMA effect, which is the latency caused by accessing memory or
devices across different CPU sockets.
RAID-1 is a mirroring technique that creates two copies of each data component
and places them on different hosts. This provides high availability and fault
tolerance for the application VMs, as they can survive the failure of one host or
disk. RAID-1 also offers better performance than RAID-5 or RAID-6, as it does not
incur any parity overhead or additional write operations.
The other options are not optimal for the customer’s needs, as they either sacrifice
performance or capacity. Option A uses RAID-5, which is an erasure coding technique that
splits each data component into three data segments and one parity segment, and
distributes them across four hosts. This reduces the capacity consumption by 25%, but it
also increases the write latency and network traffic, as each write operation requires four
hosts to participate. Option C uses ESA, which stands for Enterprise Storage Architecture,
which means that each host has two CPU sockets with multiple cores. This increases the
licensing cost and complexity of vSphere and vSAN, as well as the power consumption and
cooling requirements of the hosts. ESA also introduces the NUMA effect, which can
degrade the performance of vSAN by adding latency to access memory or devices across
different CPU sockets. Option D uses RAID-5 with ESA, which combines the
disadvantages of both options A and C.
Question # 3
An organization plans to implement a new vSAN 8.0 cluster to take advantage of the new
features around improved I/O flow, better resiliency, and more efficient disk usage. The
vSAN ReadyNodes available for the cluster consist of eight NVMe disks.
How should the organization configure the disk layout? | | A. Use vSAN OSA and create two disk groups with one cache disk and three capacity
disks each | | B. Use vSAN ESA and the new Storage pool configuration where all disks contribute to
capacity | | C. Use vSAN OSA and thenew Storage pool configuration where all disks contribute to
capacity | | D. Use vSAN ESA and create two disk groups with one cache disk and three capacity disks
each |
B. Use vSAN ESA and the new Storage pool configuration where all disks contribute to
capacity
Explanation: Using vSAN ESA and the new Storage pool configuration where all disks
contribute to capacity is the correct answer because it allows the organization to take
advantage of the new features in vSAN 8.0, such as improved I/O flow, better resiliency,
and more efficient disk usage. With vSAN ESA, there is no need to create disk groups or
designate cache disks, as all disks are treated as capacity disks and use a new algorithm
to distribute data across them. This also simplifies the disk management and reduces the
overhead of cache management.
References:
VMware vSAN Specialist v2 Exam Preparation Guide, page 6
What’s New in VMware vSAN 8.0
Question # 4
An administrator is tasked to create a Kerberos secured NFS v4.1 file share.
Which information is minimally required during the configuration of the File Service? | | A. Organizational Unit, User Account, Password | | B. Active Directory Domain, User Account, Password | | C. Kerberos Server, User Account, Password | | D. Active Directory Domain. Organizational Unit, User Account. Password |
B. Active Directory Domain, User Account, Password
Explanation: To create a Kerberos secured NFS v4.1 file share, the administrator needs to
provide the following information during the configuration of the File Service:
Active Directory Domain: The domain name of the Active Directory server that
provides Kerberos authentication service for the NFS server and clients. For
example, example.com.
User Account: The user name of the Active Directory account that has permissions
to join the NFS server to the domain and create service principal names (SPNs)
for the NFS server. For example, administrator@example.com.
Password: The password of the Active Directory account that is used for
authentication. For example, P@ssw0rd.
These information are required to enable Kerberos security for NFS 4.1 and allow the NFS
server to obtain a Kerberos ticket from the Active Directory server. The administrator also
needs to specify the NFS share name, path, and access permissions1 References: 1:
VMware vSphere Storage Guide, page 118
Question # 5
A customer wants to validate if Skyline online health is working for vSAN and finds out that
Skyline is not fully configured yet.
What two requirements must be met to make sure that Skyline online health will work?
(Choose two.) | | A. Add the Skyline license into Virtual Center | | B. Enable Skyline Health on the vSAN Cluster | | C. Enable CEIP and join the program | | D. Have a working Internet connection | | E. Have vCenter on version 7 or higher |
C. Enable CEIP and join the program
D. Have a working Internet connection
Explanation: To make sure that Skyline online health will work for vSAN, two requirements
must be met: enable CEIP and join the program, and have a working Internet connection.
CEIP stands for Customer Experience Improvement Program, which is a voluntary program
that collects anonymous product usage data from customers who participate in it. By enabling CEIP and joining the program, customers can benefit from Skyline online health,
which provides proactivenotifications and recommendations for software and hardware
issues based on VMware Analytics Cloud. A working Internet connection is also required
for Skyline online health to communicate with VMware Analytics Cloud and receive online
notifications. The other options are not requirements for Skyline online health.
References: About the vSAN Skyline Health; Skyline Health
Question # 6
Due to a planned power outage, an administrator decides to shut down the vSAN cluster
using the Shutdown Cluster Wizard. The administrator starts by checking the vSAN health
service to confirm the cluster is healthy and then powers off all virtual machines (VMs)
including vCLS VMs.
Which step needs to be taken before starting the Shutdown Cluster Wizard? | | A. Place all ESXi hosts into maintenance mode | | B. Disable cluster member updates from vCenter Server | | C. Turn off High Availability | | D. Shutdown vCenter |
C. Turn off High Availability
Explanation: To shut down the vSAN cluster using the Shutdown Cluster Wizard, the
administrator needs to turn off High Availability (HA) before starting the wizard. This is
because HA monitors the cluster for host failures and attempts to restart the affected VMs
on other hosts. If HA is not turned off, the cluster might register host shutdowns as failures
and trigger unnecessary VM restarts, which can interfere with the graceful shutdown
process. Therefore, the administrator should disable HA from the Configure tab of the
cluster before using the Shutdown Cluster Wizard12
References: 1: Shut Down the vSAN
Cluster Using the Shutdown Cluster Wizard 3 2: Manually Shut Down and Restart the
vSAN Cluster 4
Question # 7
| Which VMware solution requires vSAN usage? | | A. VMware Cloud Foundation | | B. VMware Horizon | | C. VMware Telco Cloud Automation | | D. VMware Aria Automation |
A. VMware Cloud Foundation
Explanation: The VMware solution that requires vSAN usage is VMware Cloud
Foundation. VMware Cloud Foundation is an integrated software stack that bundles
compute virtualization (VMware vSphere), storage virtualization (VMware vSAN), network
virtualization (VMware NSX), and cloud management and monitoring (VMware vRealize
Suite) into a single platform that can be deployed on premises or as a service within a
public cloud. VMware Cloud Foundation relies on vSAN as the primary storage solution for
its workload domains, which are logical pools of resources that can be used to run different
types of workloads. The other options are not correct. VMware Horizon, VMware Telco
Cloud Automation, and VMware Aria Automation are VMware solutions that do not require
vSAN usage, although they can benefit from it. VMware Horizon is a platform that delivers
virtual desktops and applications across a variety of devices and locations, and it can use
any supported storage solution, including vSAN. VMware Telco Cloud Automation is a
cloud-native orchestration and automation platform that enables communication service
providers to accelerate the deployment and lifecycle management of network functions and
services across any network and cloud. It can use any supported storage solution,
including vSAN. VMware Aria Automation is not a valid VMware solution name.
References: VMware Cloud Foundation Overview; VMware Horizon Overview; VMware
Telco Cloud Automation Overview
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