cct241 - midterm exam
Datastore clusters must contain similar or interchangeable datastores, with the following exceptions:
—All datastores in a datastore cluster must be in the same format, either VMFS or NFS. —vSAN and virtual volumes datastores are not supported in a datastore cluster. —Replicated datastores cannot be combined with nonreplicated datastores in the same datastore cluster that is enabled for vSphere Storage DRS.
When used in a vSphere environment, 4Kn drives have the following limitations? Choose all that apply.
- 4Kn SSD drives, 4Kn NVMe drives, and 4Kn drives as RDM are not supported. - Third-party multipathing plug-ins are not supported. - Only local SAS and SATA hard disk drives are supported. - Booting from 4Kn drives is not supported with UEFI only.
Match the vSphere Storage DRS Affinity Rules with the proper description. -Intra-VM VMDK Affinity Rule (default) -Intra-VM VMDK Affinity Rule -VM Anti-Affinity Rule
- Keep virtual machine VMDKs together on the same datastore. - Keep virtual machine VMDKs together on the different datastores. - Keep VMs on different datastores
You need to configure a virtual machine to utilize N-Port ID Virtualization (NPIV). Which of the following are required?
- VMFS - RDM
ESXi hardware acceleration for block storage devices supports which of the following features?
- full copy - block zeroing - hardware-assisted locking
The hardware acceleration operations that NAS storage provides consists of the following:
- full file clone - reserve space - native snapshot support - extended file statistics
The I/O filter framework applies I/O filters in the following order:
- replication - encryption - caching - storage I/O control
To send unmap requests from the guest OS to the array, the VM must meet the following prerequisites. Choose all that apply.
- the guest OS must be able to identify the virtual disk as thin-provisioned. - the EnableBlockDelete advanced ESXi host setting must be set to 1. - VM hardware must be at version 11 (ESXi 6.0) or later. - The virtual disk must be thin-provisioned.
When configuring a VMkernel adapter, which of the following are system services that can be enabled for the adapter?
- vSAN - Fault Tolerance logging - Management
By regularly examining settings on distributed and physical switches, health check identifies what common configuration errors? Choose all that apply
-Mismatched MTU settings between the distributed switch, physical adapter, and physical switch ports -Mismatched VLAN trunks between the distributed switch and physical switch -teaming and failover
You need to configure a virtual machine to utilize N-Port ID Virtualization (NPIV). Which of the following are required? (Choose two.) iSCSI vVOLs RDM FCoE vSAN VMFS
-RDM -VMFS Explanation: NPIV requires the use of virtual machines with RDMs. An RDM is a mapping file containing metadata that resides in a VMFS datastore.
What three categories are health status details organized?
-Teaming and Failover -MTU -VLAN
What are the different modes of Operation when CDP or LLDP is enabled? Choose all that apply.
-both -listen -advertise
What features does a distributed switch support? Choose all that apply.
-data center level mgmt. -port mirroring. - NIC teaming (one more) NetFlow, private VLANs, inbound traffic shaping, configuration backup and restore, Link Aggregation Control Protocol, vSphere vMotion migration of network state, network I/O control, per-port policy settings, port state monitoring.
What are the bandwidth parameters of Network I/O Control 3.0?
-reservation -limit -share (need to confirm)
If the capabilities of your virtual volumes storage array do not appear in the storage policy interface in the vSphere Client, what should you check?
-that the virtual volumes storage provider is registered with vCenter Server.
You are assigning a VLAN ID to a standard port group. What is the acceptable range?
0-4095
You are assigning a VLAN ID to a standard port group. What is the acceptable range? 1-4094 0-4095 0-4094 1-1095
0-4095. Explanation: You can set the VLAN ID to 0 (external switch tagging), 1 to 4094 (virtual switch tagging), or 4095 (virtual guest tagging)
On a distributed pot group, the valid VLAN ID range is which of the following?
1 to 4094
How often does a distributed switch test its uplinks?
30s
You want to leverage LAGs with your vDS. Which of the following is supported?
40 LAGs on a single distributed switch
You want to leverage LAGs with your vDS. Which of the following is supported? iSCSI software port binding Nested ESXi 40 LAGs on a single distributed switch 40 LAGs on a single host
40 LAGs on a single distributed switch.
The maximum size for both a datastore and a single extent is ___________ TB?
64
You are planning to implement RAID 6 erasure coding for a virtual disk stored in a vSAN datastore. What percentage of the required capacity will be usable? 50% 67% 75% 100%
67%. Explanation: If you choose RAID 5/6 and PFTT=2 for a 100 GB virtual disk, the required capacity is 150 GB, and the usable capacity is 67%.
Using NIOC, you reserved 1.0 Gbps for virtual machine system traffic on a distributed switch with eight 10 Gbps uplinks. If you reserve 512 Mbps for a network resource pool, what is the maximum reservation you can set in another network resource pool?
7.5 Gbps
Using NIOC, you reserved 1.0 Gbps for virtual machine system traffic on a distributed switch with eight 10 Gbps uplinks. If you reserve 512 Mbps for a network resource pool, what is the maximum reservation you can set in another network resource pool? 0.5 Gbps 1.0 Gbps 7.5 Gbps 79.6 Gbps
7.5 Gbps Explanation: If you reserved 1.0 Gbps for virtual machine system traffic on a distributed switch with 8 uplinks, then the total aggregated bandwidth available for virtual machine reservation on the switch is 8.0 Gbps. Each network resource pool can reserve a portion of the 8 Gbps capacity.
Network I/O Control 3.0 allocates the requested bandwidth on each physical network adapter. You can reserve no more than _____________ of the bandwidth of a physical network adapter.
75 percent
Match the VLAN ID range to the proper VLAN Tagging Mode: vlan0 = vlan 1 to 4094 vlan 4095
= External switch tagging (EST) = Virtual switch tagging (VST) = Virtual guest tagging (VGT)
You want to be able to use the vSphere Client to identify the non-Cisco physical switch connected to a virtual switch uplink. Which of the following should you implement? A vSS with LLDP A vSS with CDP A vDS with LLDP A vDS with CDP
A vDS with LLDP Explanation: Cisco Discovery Protocol (CDP) support was introduced with ESX 3.x. CDP is available for standard switches and distributed switches that are connected to Cisco physical switches. Link Layer Discovery Protocol (LLDP) is supported in vSphere 5.0 and later for vDS (5.0.0 and later), but not for vSS.
You enabled NIOC, reserved virtual machine system traffic, and created a network resource pool. Which of the following steps do you need to take to allow a virtual machine to use the network resource pool?
Assign the network resource pool to the distributed port group where the virtual machines are connected.
You want to enable a vDS health check for virtual switch teaming. Which of the following is a requirement? At least two active NICs and two hosts At least one active NIC from each of two hosts At least two active NICs from at least one host At least one active NIC from one host
At least two active NICs and two hosts Explanation: The required vDS configuration for the virtual switch teaming policy health check is at least two active physical NICs and two hosts.
You are preparing to leverage VAAI in your vSphere environment. Which of the following primitives will not be available for your virtual machines stored in NFS datastores?
Atomic Test and Set
You are preparing to leverage VAAI in your vSphere environment. Which of the following primitives will NOT be available for your virtual machines stored in NFS datastores? Atomic Test and Set Full File Clone Extended Statistics Reserve Space
Atomic Test and Set. Explanation: The following are the VAAI primitives for NAS: Full File Clone, Fast File Clone/Native Snapshot Support, Extended Statistics, and Reserve Space.
You want to enable NetFlow in a distributed port group. Which of the following steps should you take?
Change the distributed port group's monitoring policy.
What level does a distributed switch move network management components?
Data center level
You are preparing to implement vSphere with Kubernetes. Which type of virtual disk must you provide for storing logs, emptyDir volumes, and ConfigMaps?
Ephemeral
You are preparing to implement vSphere with Kubernetes. Which type of virtual disk must you provide for storing logs, emptyDir volumes, and ConfigMaps? Ephemeral Container image Persistent volume Non-persistent volume
Ephemeral. Explanation: A vSphere pod requires ephemeral storage to store Kubernetes objects, such as logs, emptyDir volumes, and ConfigMaps.
Load-based NIC teaming is the default teaming policy.
False
The total bandwidth reservation of the VMs on a host can exceed the reserved bandwidth that is configured for the VM system traffic.
False
When a LUN is thin-provisioned, the storage array reports the LUN physical size. [true or false]
False
vSphere Virtual Volumes does NOT support replication.
False
A feature that detects certain inconsistencies between the physical and the virtual networks.
Health check
You are planning to implement a vSAN stretched cluster. Which of the following statements is true? You should not enable DRS in automatic mode. You should disable HA datastore heartbeats. If you set PFFT to 0, you may be able to use SMP-FT. If one of the fault domains is inaccessible, you cannot provision virtual machines.
If you set PFFT to 0, you may be able to use SMP-FT. Explanation: Symmetric Multiprocessing Fault Tolerance (SMP-FT) is supported when PFFT is set to 0 and Data Locality is set to Preferred or Secondary.
You want to tag voice over IP data in your vSphere environment. Which step should you take?
Implement a rule with Action = Tag
You want to tag voice over IP data in your vSphere environment. Which step should you take? Use a vSS Implement a filtering rule Implement a rule with Action = Tag Navigate to Menu > Tags and Custom Attributes
Implement a rule with Action = Tag Explanation: When marking traffic, you can create a rule to configure qualifiers to identify the data to be tagged and set Action to Tag.
You are configuring virtual networking in your vSphere 7.0 environment. Which of the following policies are available for distributed switches but NOT for standard switches? Inbound traffic shaping Outbound traffic shaping IPv6 support CDP
Inbound traffic shaping Explanation: Distributed virtual switches can do both inbound and outbound traffic shaping, whereas standard virtual switches handle just outbound traffic shaping.
vSphere Storage DRS detects datastore correlation by performing the following operations:
Measuring individual datastore performance
You are configuring traffic shaping policies for your vSS. Which one of the following is NOT an available setting? Peak Bandwidth Minimum Bandwidth Average Bandwidth Burst Size
Minimum Bandwidth. Explanation: When you enable traffic shaping for a standard switch or port group, you can configure the options Average Bandwidth, Peak Bandwidth, and Burst Size.
You want to control the use of NetFlow within your distributed switch. Which type of network policy should you implement?
Monitoring
You want to control the use of NetFlow within your distributed switch. Which type of network policy should you implement? Traffic shaping Monitoring Resource allocation Filtering and marking
Monitoring. Explanation: After configuring NetFlow on a vDS, you can configure monitoring policies on vDS port groups and ports.
You are configuring storage policies for use with your vSAN cluster. Which of the following is NOT an available option?
Number of Replicas per Object.
You are configuring storage policies for use with your vSAN cluster. Which of the following is NOT an available option? Number of Replicas per Object Number of Disk Stripes per Object Primary Level of Failures to Tolerate Secondary Level of Failures to Tolerate
Number of Replicas per Object. Explanation: The available vSAN storage policies include PFTT, SFTT, Data Locality, Failure Tolerance Method, Number of Disk Stripes per Object, Flash Read Cached Reservation, Force Provisioning, Object Space Reservation, Disable, Object Checksum, and IOPS Limit for Object.
You are configuring networking policies in your vSphere 7.0 environment. Which of the following policies are not available for a vSS?
Port Blocking
You are configuring networking policies in your vSphere 7.0 environment. Which of the following policies are NOT available for a vSS? Teaming and Failover Security Traffic Shaping Port Blocking
Port Blocking. Explanation: On a vSS, you can set the following network policies: Teaming and Failover, Security, Traffic Shaping, and VLAN.
You are configuring port mirroring for a distributed switch. Which of the following is NOT an available session type?
Port group.
You are planning to implement vVols. Which of the following are logical I/O proxies?
Protocol endpoints.
You are planning to implement vVols. Which of the following are logical I/O proxies? wrong - storage providers
Protocol endpoints.
You are planning to implement vVols. Which of the following are logical I/O proxies? Data-vVol instances Storage providers Storage containers Protocol endpoints
Protocol endpoints. Explanation: Protocol endpoints (PEs) are logical I/O proxies, used for communication with virtual volumes and the virtual disk files.
You are configuring teaming policies in your vSphere 7.0 environment. Which of the following teaming options are NOT available for a vSS? Route Based on Originating Virtual Port Route Based on Physical NIC Load Route Based on Source MAC Hash Use Explicit Failover Order
Route Based on Physical NIC load. Explanation: The following NIC teaming options are available on vSS and vDS: Route Based on Originating Virtual Port, Route Based on IP Hash, Route Based on Source MAC Hash, and Use Explicit Failover Order.
You are preparing to manage and troubleshoot a vSAN environment. Which of the following is a command-line interface that provides a cluster-wide view and is included with the vCenter Server deployment?
Ruby vSphere Console
You are preparing to manage and troubleshoot a vSAN environment. Which of the following is a command-line interface that provides a cluster-wide view and is included with the vCenter Server deployment? VMware PowerCLI vSAN Observer Ruby vSphere Console esxcli
Ruby vSphere Console. Explanation: Ruby vSphere Console (RVC) is a command-line interface used for managing and troubleshooting vSAN. RVC provides a cluster-wide view and is included with the vCenter Server deployment.
You are adding a VMkernel adapter to a vDS. Which one of the following settings is NOT available?
SR-IOV
You want to address an application's sensitivity to network latency by implementing a technology that presents a physical device with multiple virtual functions. Which one of the following should you implement? DirectPath I/O TSO LACP SR-IOV
SR-IOV. Explanation: Single Root I/O Virtualization (SR-IOV) is a feature that allows a single Peripheral Component Interconnect Express (PCIe) device to appear as multiple devices. It is useful for supporting an application in a guest OS that is sensitive to network latency. SR-IOV-enabled devices provide virtual functions (VFs) to the hypervisor or guest operating system.
You want to connect physical adapters to an existing vSphere Standard Switch. Which of the following steps should you take?
Select Manage Physical Adapters and click the Add Adapters button.
You want to connect physical adapters to an existing vSphere Standard Switch. Which of the following steps should you take? Select Manage Physical Adapters and click the Add Adapters button. Select VMkernel Adapters. Create a port group and then add the adapter to it. Create an uplink port group and then add the adapter to it.
Select Manage Physical Adapters and click the Add Adapters button. Explanation: To add physical adapters to a vSS, you can select the host, navigate to Configure > Networking > Virtual Switches, select the switch, and select Manage Physical Adapters. In the wizard, click the Add Adapters (green plus sign) button.
You want to use VLAN guest tagging with your vSphere Standard Switch. What setting should you make on the standard port group?
Set VLAN ID to 4095
You are explaining how vSphere interacts with storage systems. Which of the following steps may occur when VMware NMP receives an I/O request? The PSP issues the I/O request on the appropriate physical path. The SATP issues the I/O request on the appropriate physical path. The PSP activates the inactive path. The PSP calls the appropriate SATP.
The PSP issues the I/O request on the appropriate physical path. Explanation: When the VMware NMP receives an I/O request, its calls the appropriate PSP, the PSP selects an appropriate physical path, and the NMP issues the I/O request.
You are testing Storage DRS (SDRS) in a scenario where the utilized space on one datastore is 82%, and it is 79% on another. You observe that SDRS does not make a migration recommendation. What might be the reason? The Space Utilization Difference threshold is set too low. The Space Utilization Difference threshold is set too high. The Space Utilization Difference threshold is set to 78%. The Space Utilization Difference threshold is set to 80%.
The Space Utilization Difference threshold is set too high. Explanation: If the space used on datastore A is 82% and on datastore B is 79%, the difference is 3. If the threshold is 5, Storage DRS will not make migration recommendations from datastore A to datastore B.
You created a distributed port group with default settings. Which of the following statements is true? The port group is set for fixed allocation and 8 ports. The port group is set for elastic allocation and 8 ports. The port group is set for fixed allocation and 16 ports. The port group is set for elastic allocation and 16 ports.
The port group is set for fixed allocation and 8 ports. Explanation: In vSphere 7.0, the default settings for a distributed port group are static binding, elastic port allocation, and eight ports.
You want to use DirectPath I/O in your vSphere 7.0 environment. Which of the following features is supported? The virtual machine running in a vSphere cluster Hot adding virtual devices Snapshots Fault tolerance
The virtual machine running in a vSphere cluster Explanation: With DirectPath I/O in a vSphere 7.0 environment, a virtual machine can be part of a cluster, but it cannot migrate across hosts.
You want to use DirectPath I/O in your vSphere 7.0 environment. Which of the following features is supported?
The virtual machine running in a vSphere cluster.
You are deploying virtual machines in a vSphere environment. Which virtual disk configuration provides the best performance for the guest OS? Thin provisioned Thick eager zeroed Thick lazy zeroed Thin eager zeroed
Thick eager zeroed. Explanation: Thick eager zeroed is the slowest method for virtual disk creation, but it is the best for guest performance.
You are modifying an existing vDS. Which of the following options is NOT available on the Advanced settings page?
Traffic Filtering and Marking
A VM storage policy controls which type of storage is provided for the VM and how the VM is placed within storage.
True
A distributed switch functions as a single virtual switch across all associated hosts.
True
A quota represents a portion of the bandwidth that is reserved for VM system traffic on the physical adapters connected to the distributed switch.
True
If an array reports 2 TB of storage but provides only 1 TB, the datastore considers 2 TB to be the LUN's size.
True
NetFlow is a network analysis tool for monitoring the network and viewing the VM traffic that flows through a distributed switch.
True
Port binding determines when and how a VM virtual NIC is assigned to a virtual switch port.
True
Use vSphere Storage vMotion to migrate data from your VMFS5 datastore to a VMFS6 datastore.
True
With the Route based on physical NIC load teaming policy, uplinks in the port group are tested every 30 seconds. If the load on the uplink exceeds 75 percent of usage, the VM with the highest I/O is moved to a different uplink.
True
vSphere 7 supports both VDS and the NSX virtual distributed switch (N-VDS).
True
when you connect a VM to a port group that is configured with static binding, a port is immediately assigned and reserved for the VM, thus allowing connectivity at all times.
True
You want to implement network security policies at the lowest available level. Which approach should you choose?
Use distributed switched and apply policies on the individual ports.
You want to implement network security policies at the lowest available level. Which approach should you choose? Use standard switches and apply policies on the individual ports. Use standard switches and choose override on the port groups. Use distributed switches and apply policies on the individual ports. Use distributed switches and apply policies on the distributed port groups.
Use distributed switches and apply policies on the individual ports. Explanation: At the distributed port level, you can override policies applied to the distributed port group and apply unique policies to a distributed port.
You want to integrate vSphere with your storage system. Which of the following provides software components that integrate with vSphere to provide information about the physical storage capabilities? VASA VAAI SATP NMP
VASA. Explanation: VASA storage providers are software components that integrate with vSphere to provide information about the physical storage capabilities.
You are modifying an existing vDS. Which of the following options is NOT available on the General settings page?
VLAN ID
You want to enable vDS health checks in your vSphere 7.0 environment. Which of the following are valid health check services that you can enable or disable in the vSphere 7.0 Client?
VLAN and MTU
In your vSphere environment where VASA is not implemented, you are planning to leverage storage policies associated with devices in your storage array. Which type of storage policies should you create?
VM storage policy for tag-based placement
In your vSphere environment where VASA is not implemented, you are planning to leverage storage policies associated with devices in your storage array. Which type of storage policies should you create? VM storage policy for host-based data services VM storage policy for vVols VM storage policy for tag-based placement vSAN storage policy
VM storage policy for tag-based placement. Explanation: A VM storage policy for tag-based placement is helpful for storage arrays that do not support VASA and their storage characteristics are not visible to the vSphere client.
You are deploying datastores in a vSphere environment and want to use the latest VMFS version that supports ESXi 6.5 and ESXi 7.0. Which version should you use? VMFS Version 3 VMFS Version 4 VMFS Version 5 VMFS Version 6
VMFS Version 6. Explanation: VMFS Version 6 provides access for ESXi 6.5 and later hosts.
You are deploying datastores in a vSphere environment and want to use the latest VMFS version that supports ESXi 6.5 and ESXi 7.0. Which version should you use?
VMFS version 6
Which of the following is the default path selection policy for most active/passive storage devices?
VMW_PSP_MRU
Which of the following is the default path selection policy for most active/passive storage devices? VMW_PSP_MRU VMW_PSP_FIXED VMW_PSP_RR VMW_PSP_AP
VMW_PSP_MRU. Explanation: MRU is the default path selection policy for most active/passive storage devices.
Which of the following virtual network adapters must be configured for a virtual machine to support jumbo frames?
VMXNET3
vSAN is ______ storage built into vSphere.
software-defined
You are deploying virtual machines in a vSphere environment. Which virtual disk configuration provides the best performance for the guest OS?
thick eager zeroed
You want to create a custom TCP/IP stack for your ESXi 7.0 server. Which one of the following is an available service that you can directly enable for the stack?
vSphere Replication NFC
You want to create a custom TCP/IP stack for your ESXi 7.0 server. Which one of the following is an available service that you can directly enable for the stack? vSphere Replication NFC NFS vSphere HA heartbeat iSCSI
vSphere Replication NFC.
When ESXi is first installed on a host, the default standard virtual switch is named -- and the switch is configured with a(n) -- VMkernel port group to allow network connections from the Host client or SSH
vSwitch0, management
