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V5 > Ch 10 > Flashcards

Ch 10 Flashcards

1
Q
  1. You need to put a host in maintenance mode to replace a failed NIC card. When you attempt to put the host in maintenance mode, it gets stuck at 2 percent. Which of the following are likely reasons why the maintenance mode task will not complete?

A. A virtual machine does not have VMware Tools installed.
B. A virtual machine has a snapshot.
C. A virtual machine is attached to an internal-only network.
D. A virtual machine is attached to an ISO on a local datastore

A

D. Virtual machines attached to an ISO on local storage cannot be migrated with vMotion.

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2
Q
  1. During a recent maintenance window you took a snapshot of a virtual machine. Prior to taking the snapshot you disconnected the NIC in the VM’s settings. The maintenance window ended with a failure, and the VM was reverted to its previous state. Now the owner of the application on this VM reports that the application is down. What is the most likely reason?

A. The virtual machine has the same MAC address as another virtual machine.
B. The IP address changed for the VM.
C. The virtual machine needs to be rebooted.
D. The VM’s NIC is disconnected.

A

D. The VM’s NIC was disconnected prior to the snapshot. When the VM was reverted, it had a disconnected NIC.

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3
Q
  1. Where can all of the ESXi logs be accessed from?

A. The vSphere Client
B. The vSphere Web Client
C. /var/run/log from the ESXi Shell
D. /var/vmware/log from the ESXi Shell

A

C. All of the ESXi logs are accessible from /var/run/log in the ESXi Shell.

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4
Q
  1. If the Define Failover Capacity By Static Number Of Hosts admission control policy is selected, which of the following panels will appear in the vSphere HA toolbar accessible from the Cluster’s Monitor tab?

A. Advanced Runtime Info
B. Advanced Cluster Info
C. Advanced Failure Info
D. Advanced HA Info

A

A. If the Define Failover Capacity By Static Number Of Hosts admission control policy is used, there will be an Advanced Runtime Info panel available in the vSphere HA toolbar accessible from the Cluster’s Monitor tab.

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5
Q
  1. You are troubleshooting what you believe to be a storage contention issue. Historically, the DAVG/cmd value returns an average of 7. Today that counter returns a value of 30. What statement best summarizes the situation?

A. There is no storage contention.
B. There is minimal storage contention but not enough to worry about.
C. There is storage contention.
D. None of these.

A

C. A DAVG/cmd value greater than 20 usually indicates a problem, and the value currently reported is nearly 4 times higher than normal. It is a safe conclusion that there is storage contention in this situation.

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6
Q
  1. You have a single virtual machine that fails when using vMotion. Other virtual machines work as expected with vMotion. Which of the following troubleshooting steps should be taken? (Choose all that apply.)

A. Verify that no firewalls are between hosts in the cluster.
B. Verify virtual switch settings, including VLAN and MTU.
C. Verify that the virtual machine is not attached to any devices on the local ESXi host.
D. Verify that the virtual machine is not in the middle of a VMware Tools installation.

A

C and D. A single virtual machine is affected, so checking host-specific or network settings is simply not necessary in this case.

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7
Q
  1. Which of the following can be used to troubleshoot vSphere HA issues? (Choose two.)

A. The settings toolbar on the Cluster’s Manage tab
B. The issues toolbar on the Cluster’s Manage tab.
C. The vSphere HA toolbar on the Cluster’s Monitor tab
D. The Issues toolbar on the Cluster’s Monitor tab

A

C and D. Both the Issues toolbar on the Cluster’s Monitor tab and the vSphere HA tab toolbar on the Cluster’s Monitor tab can be used to view all current vSphere HA issues.

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8
Q
  1. Which of the following system requirements do HA, DRS, and vMotion all share? (Choose all that apply.)

A. All hosts must be licensed to use the feature.
B. All hosts must have access to the same shared storage.
C. VMware Tools are required in virtual machines.
D. VMware Tools must be the most recent version.

A

A and B. All hosts must be licensed and have access to the same shared storage. Vmware Tools are never required for these features.

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9
Q
  1. You need to export the diagnostic information for your vCenter Server and all of the ESXi hosts it manages. What is the simplest way to accomplish this task?

A. Start > Programs > VMware > Generate vCenter Server Log Bundle
B> vSphere Web Client connected to vCenter Server
C. vSphere Client connected to each ESXi host
D. None of these

A

B. If the vShpere Web Client is connected to a vCenter Server, the diagnostic information for the ESXi hosts the server manages can also be exported at the same time.

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10
Q
  1. Which of the following is specifically used to measure virtual machine I/O latency? (Choose two.)

A. KAVG/cmd
B. DAVG/cmd
C. LAT/rd
D. LAT/wr

A

C and D. The LAT/rd and LAT/wr metrics are virtual machine specific and used to measure I/O latency.

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11
Q
  1. Which of the following could cause a DRS cluster to become imbalanced? (Choose all that apply.)

A. VMs with individual memory reservations
B. ESXi hosts in maintenance mode
C. VM-Host affinity/anti-affinity rules
D. VM-VM affinity rules

A

B, C and D. Each of these can lead to a DRS cluster imbalance.

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12
Q
  1. Which of the following can be viewed on a vMotion resource map? (Choose all that apply.)

A. Virtual machine-connected devices
B. vSwitches
C. Datastores
D. ESX/ESXi hosts

A

B, C and D. Virtual switches, datastores, hosts, and virtual machines can all be viewed in vMotion resource maps, but there is no ability to show connected devices for virtual machines.

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13
Q
  1. You are connected directly to an ESXi host with the vSphere Client. How do you obtain the health information for this system?

A. Select the host and use the Hardware Status tab.
B. Select the host and use the Configuration tab.
C. Select the host and use the Health Status tab.
D. Select the host and use the System Info tab.

A

B. When connected directly to an ESXi host with the vSphere Client, use the Configuration tab to view the Hardware Health Status information.

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14
Q
  1. Your NFS storage system firmware version does not support T10-based Storage APIs - Array Integration (Thin Provisioning). What will happen if an NFS volume fills to capacity on this storage system?

A. Virtual machines will shut down gracefully.
B. Virtual machines will be powered off.
C. Virtual machines will be paused
D. Virtual machines will crash.

A

D. Without the T10-based Storage APIs - Array Integration (Thin Provisioning) support, virtual machines will crash if an out-of-space condition occurs.

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15
Q
  1. Which of the following is defined as the average amount of time in milliseconds a device takes to service a single I/O request?

A. DAVG/cmd
B. KAVG/cmd
C. GAVG/cmd
D. QAVG/cmd

A

A. DAVG/cmd is the average amount of time in milliseconds a device takes to service a single I/O request.

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16
Q
  1. You have just installed ESXi on a server and are having trouble getting management network connectivity established. When troubleshooting this issue, the network administrator has asked for the MAC address of the network adapter you are trying to use. Which of the following can be used to obtain the MAC address? (Choose all that apply.)

A. From the ESXi Shell, run the command - esxcli network nic list.
B. The DCUI Configure Management Network feature
C. vSphere Client
D. vSphere Web Client

A

A and B. From the local console, the ESXi Shell or the Configure Management Network feature will show the device name, the MAC address, and the status. The vSphere Client and vSphere Web Client cannot be used if there is no management network connectivity.

17
Q
  1. You are trying to install ESXi on a white-box server built from parts you bought. During the installation, the installer fails to find a hard disk. What are the most likely causes of this problem? (Choose two.)

A. The server’s BIOS is not configured properly.
B. The installation media is corrupt.
C. This server and storage controller are not on the HCL and are therefore not supported.
D. The storage controller needs a driver.

A

C and D. When building a white-box server, as many parts as possible should be verified to be on the Vmware HCL. When a hard disk is not seen by the ESXi installer, a missing driver is often the root cause.

18
Q
  1. Which of the following are valid steps in verifying a storage configuration? (Choose all that apply.)

A. Verify the host’s storage adapters are listed on the HCL and used only as described in the HCL.
B. Verify that storage systems used are listed on the HCL and are at the required firmware versions.
C. Verify that no configuration maximums have been exceeded.
D. Verify that no ESXi patches are required for the configuration.

A

A, B, C and D. Each of these is a valid step in verifying a storage configuration.

19
Q
  1. Your vSphere environment uses NFS for the storage. The connectivity to the NFS server was set up with a standard vSwitch using the Route Based On IP Has load balancing. There have recently been issues with connectivity to the NFS server. There have been no changes to the vSphere networking, and your troubleshooting has found no problems. What is the next step in troubleshooting this issue?

A. Reboot each ESXi host one at a time.
B. Restart the NFS storage system.
C. Involve the networking staff to verify that the physical switch is working properly.
D. Open a support request with VMware.

A

C. When certain configuation are in use, like Route Based On IP Hash Load Balancing, it will often be necessary to involve the staff responsible for managing the upstream physical network devices.

20
Q
  1. When viewing the VMware DRS panel on the cluster’s Summary tab, the value of N/A is reported for Target Host Load Standard Deviation. Why is this?

A. Automation Level is set to Partially Automated.
B. Automation Level is set to Fully Automated.
C. Migration Threshold is set to Aggressive.
D. Migration Threashold is set to Conservative.

A

D. When Migration Threshold is set to Conservative, no attempt to load balance will be made by DRS. This will result in the target host load standard deviation being reportad as N/A.

V5 (13 decks)

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