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Vmware 6.7 > Vmware 6.7 > Flashcards

Vmware 6.7 Flashcards

1
Q

You are planning on using Host Profiles to create an ideal reference configuration that can be applied to many hosts. Which statements regarding this configuration are correct? (Choose four.)

A
  1. You can check running hosts against a host profile for compliance.
  2. You can apply a host profile to a new host to perform initial configuration
  3. Host profiles can be used to configure hosts with no local storage
  4. You can create a host rpofile based on a running reference host.

Explanation
Hosts Profiles can be created based on a running reference host, and can be manually edited after the fact. You can apply host profiles to running hosts, or use them to configure new hosts. Host profiles and Auto Deploy can be used together to image and configure ESXi hosts with no local storage.

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2
Q

What does the restart management network option in the DCUI do to an ESXi host?

A

Release and renew the DHCP address.

Explanation
Restarting the management network interface results in a brief network outage for the ESXi host. It can be used to renew a DHCP lease. VMs will not be effected under normal circumstances. The management agents let you access the ESXi host by using the vSphere Web Client and vCenter Server. If remote access to a host is not working you might need to restart the management agents. If a vSphere Distributed Switch stops functioning management access to a host may be interrupted. You can restore the standard switch to regain access to the host.

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3
Q

Distributed Resource Scheduler (DRS) has been enabled in fully automated mode on a cluster of ESXi hosts. However investigation shows that one host is experiencing high CPU usage. Other hosts have plenty of CPU capacity available, and yet the cluster remains unbalanced. What could be causing this issue?

A

Affinity and anti-affinity rules are preventing DRS from moving VMs.

Explanation
Affinity and anti-affinity rules could cause this issue. These rules define whether specified VMs should run on the same host or be kept on separate hosts. For example, VMs that serve redundant purposes (such as Domain Controllers) should be kept on separate hosts. DRS will respect these rules and will not break an affinity rule in order to load balance the hosts in a cluster. DRS can be configured with three different automation levels: Manual, Partially Automated, and Fully Automated. The automation level of a cluster can be overridden on specified VMs. If a VM is set to either Manual or Partially Automated mode DRS will not automatically vMotion that VM for load balancing purposes. This can result in an imbalanced load on the cluster.

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4
Q

What is the maximum number of CPUs for a VM that is configured with Fault Tolerance (FT)?

A

8

Explanation
With vSphere 6.7 Enterprise Plus a VM with FT can have up to 8 vCPUs and 128GB of memory. A maximum of four FT VMs can exist on a single ESXi host. Both Primary and Secondary VMs count towards this limit.

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5
Q

You want to configure a virtual switch with traffic shaping, Cisco Discovery Protocol (CDP), and IP Hash NIC Teaming. Which statements regarding this configuration are correct? (Choose two.)

A
  1. The vSphere Standard Switch only supports outbound traffic shaping
  2. These features are all avaiable on a vSphere Standard Switch.
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6
Q

Which statements regarding Single Sign-On (SSO) and the Platform Services Controller (PSC) are correct? (Choose three.)

A
  1. Each PSC is associated with an SSO domain
  2. An SSO domain can be split into different sites
  3. The domain name defaults to vsphere.local

Explanation
Each PSC is associated with a domain, which defaults to vsphere.local. This domain is local to the PSC itself. A domain can be split into multiple sites. Each PSC instance can be assigned to a site.

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7
Q

Which of the following statements regarding vCenter Roles and Permissions are correct? (Choose two.)

A
  1. Roles are collections of priviledges that can be granted to users.
  2. Global Permissions can apply to VMware solutions other than vCenter, such as vRealize Orchestrator.
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8
Q

You have configured the vCenter Server Appliance 6.7 in an vCHA cluster. Which of the following must be configured for vCHA to function properly? (Choose two.)

A
  1. Network Latency between the nodes must be less than 10 ms
  2. Seperate Managment and HA networks must be configured

Explanation
Separate Management and HA networks must be configured. Static IP addresses must be used. The network latency between the active, passive, and witness nodes must be under 10 ms.

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9
Q

Which statements regarding Update Manager in vSphere 6.7 are correct? (Choose two.)

A
  1. Update Manager is built into the vCenter Server Appliance, and does not need an external database.
  2. Update Manager is supported by HTML 5 vSphere Client

Explanation
Update Manager is now bundled with the vCenter Server Appliance. As soon as the vCSA is deployed, Update Manager is available. All Update Manager workflows are now available in the HTML5 vSphere Client.

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10
Q

Which statements regarding Enhanced Linked Mode are correct?

A
  1. Up to 15 vCSA deployments can be linked.
  2. Embedded Platform Service Controllers are supported when using the vCSA.

Explanation
vSphere 6.7 removed the need for an External PSC when using Enhanced Linked Mode. This was done to simplify the overall architecture are removes the need for a load balancer.

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11
Q

Which new vSphere 6.7 features allows unified management of an on-premises vSphere environment and a public cloud environment such as VMware Cloud on AWS, even if it is running on a different vSphere version?

A

vCenter Hybrid Linked Mode

Explanation
vCenter Server Hybrid Linked Mode can be used to integrate an on-premises vCenter instance with a vCenter running in a vSphere Cloud platform, even if they are not on the same version.

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12
Q

What is the purpose of Virtual TPM 2.0?

A

To validate that a VM is booted with valid software

Explanation
You can add a Virtual Trusted Platform Module (vTPM) to a virtual machine. This ensures that the VM is booted with signed software, and not malicious code. A KMS is required for vTPM.

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13
Q

You want to use an automated method to optimize installation of the ESXi hosts. The solution must work on ESXi hosts with no local storage. It should also apply a standard configuration to the hosts. Which solution should you choose?

A

Auto-Deploy

Explanation
Auto Deploy uses PXE boot infrastructure (with DHCP and TFTP servers) alongside vSphere host profiles to provision hosts. Hosts boot using a centrally stored image, even if the ESXi host has no local storage. Host profiles are integrated with Auto Deploy, and can ensure that all hosts have a standard configuration. The vicfg-cfgbackup command is used to back up and restore a host configuration. It cannot be used to automate the installation of ESXi on other hosts. The Scripted Install feature is an efficient way to deploy multiple ESXi hosts. However a scripted Install cannot check existing hosts for compliance with a standard configuration.

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14
Q

Which vCenter options can be configured using the VAMI?

A
  1. Recurring backups of the vCSA with a retention policy.
  2. Perform an update of the vCSA.

Explanation
You can configure file-based backups of the vCenter Server Appliance (vCSA) using the vCenter Appliance Management Interface (VAMI). It also includes the ability to easily perform upgrades. The vCSA has an embedded Postgres database, not a SQL database.

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15
Q

Which new vSphere 6.7 feature allows VMs to be easily migrated from an on-premises host to a cloud host, even if the hosts are using different processors?

A

Per-VM EVC

Explanation
Cross-VM EVC is ideal for vMotion in and out of the Cloud, because unlike EVC it can be enabled on a per-VM basis. This helps support vMotion in and out of the Cloud because the hosts do not need to be in the same cluster support EVC.

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16
Q

Which three nodes are part of a vCenter High Availability cluster? (Choose three.)

A
  1. Active
  2. Passive
  3. Witness

Explanation
A vCenter HA cluster has three nodes. The Active node is used for all client requests. The Active Node is cloned to a Passive node, that is only used in the event of a failure. A Witness node also exists to provide quorum. Together, the three nodes provide an active-passive failover solution.

17
Q

You have noticed that a VM needs Snapshot Consolidation. What will be the impact of consolidating snapshots? (Choose two.)

A
  1. All snapshots are deleted
  2. The contents of the data are all committed to the original base disk of the VM.

Explanation
Snapshot consolidation deletes all of the snapshots on a VM, and commits all the changes to the original base disk.

18
Q

You have deployed the vCSA 6.7, and need to configure native backups. The FQDN of the vCSA is vcsa.trainertests.local. Which address should you put in your web browser to access the VAMI and manage these backups?

A

https://vcsa.trainertests.local:5480

Explanation
You can access the vCenter Server Appliance Management (VAMI) by connecting on port 5480.

19
Q

You are configuring an HA cluster, and need to choose the correct Host Isolation Response. Which statements regarding this configuration are correct? (Choose two.)

A
  1. An isolated host cannot communicate with the Master host or the isolation address, but may still have access to storage.
  2. Validate host isolation responses include Power Off and Restart VMs, Shut Down and Restart VMs, and Disable.

Explanation
A host is isolated when it cannot communicate with the master host, and cannot ping the defined isolation address. This typically means that a host has been cut off from the Management network. VMs on the host may still function properly if they are connected to a different network, and if storage is still accessible.

20
Q

Which vCenter SSO component issues SAML tokens?

A

STS

Explanation
This service issues security assertion markup language (SAML) tokens. A SAML token represents a user identity. The vmdir service is associated with the local domain of the PSC (vsphere.local by default.)

21
Q

What is the state of the vSphere Web Client as of vSphere 6.7?

A

vShpere 6.7 is the last version of vSphere to include the vSphere web client.

Explanation
vSphere 6.7 is the last version of vSphere that will support the vSphere Web Client. Moving forward, the HTML5 vSphere Client will be the supported option.

22
Q

Which of the following features can be used to ensure proper operation of Distributed Resource Scheduler (DRS) on dissimilar hosts?

A

Enhanced vMotion Compatibility (EVC)

Explanation
EVC can be used to ensure proper operation of a DRS cluster. DRS load balances ESXi hosts using vMotion. Issues with vMotion compatibility between hosts can prevent proper operation of DRS. EVC can be used to ensure that all hosts added to a cluster are vMotion compatible. EVC can also mask certain processor features that would normally make hosts incompatible.

23
Q

You have configured admission control on an HA cluster to ensure that enough spare resources will be available if a failure occurs. For the Host Failures that Cluster Tolerates option, you have configured a value of 1. Which options can be used to define the capacity of 1 host?

A
  1. Slot Policy
  2. Dedicated Failover Host
  3. Cluster Resource Percentage

Explanation
Admission control is used by vSphere HA to ensure that there is enough failover capacity within a cluster to tolerate a defined number of host failures. Cluster resource Percentage allows you to decide how many failed hosts you want to tolerate within your cluster. HA will do the math for you to determine how much memory and CPU need to be reserved for failover.

24
Q

What is the name of the agent responsible for High Availability (HA)?

A

FDM

Explanation
Fault Domain Manager (FDM) agents used for HA in vSphere 5 or later. Automated Availability Manager (AAM) was used in earlier versions, but is no longer relevant. FDM includes features such as Datastore Heartbeat, and is not reliant on DNS. VPXA and VPXD are used to maintain a connection between vCenter and the ESXi hosts.

25
Q

What tool can be used to apply the correct Windows settings such as license key and computer name during a cloning operation?

A

Customization Specification

26
Q

You want to manage an ESXi host using the shell. Which statements regarding shell access are true? (Choose two.)

A
  1. Shell access is still possible when lockdown mode is configured
  2. The ESXI Shell and SSH are disabled by default

Explanation
The ESXI Shell and SSH are disabled by default. These services can be enabled in the DCUI, the Host Client, or in the vSphere Client. If lockdown mode is enabled, users on the exception list can still access the shell.

27
Q

What is the maximum amount of memory for a VM that is configured with Fault Tolerance (FT)?

A

128GB

With vSphere 6.7 Enterprise Plus a VM with FT can have up to 8 vCPUs and 128GB of memory. A maximum of four FT VMs can exist on a single ESXi host. Both Primary and Secondary VMs count towards this limit.

28
Q

Which vCenter feature can be used to allow you to attach metadata to objects in the vSphere inventory, in order to make objects more sortable and searchable?
​
Folders

A

Tags

29
Q

Which statements regarding Encrypted vMotion are correct? (Choose two.)

A
  1. Cross-vCenter vMotion regarding supports Encrypted vMotion
  2. Encrypted vMotion is supported over long distance

Explanation
Support for Encrypted vMotion with Cross-vCenter vMotion was introduced in vSphere 6.7. Long distance vMotion is also supported. If a VM is encrypted, the contents of the VMDK can still be migrated with Storage vMotion.

30
Q

Which new features were introduced in vSphere 6.7 to help expedite updates and planned maintenance on ESXi hosts?

A
  1. Major version upgrades now only require a single reboot.
  2. Quick boot allows a restart of an ESXi host with rebooting it.

Explanation
Quick boot allows a restart of an ESXi host with rebooting it. This allows it to skip the time consuming process of hardware initialization. Also, major upgrades now only require one reboot instead of two.

Vmware 6.7 (1 decks)

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