VCP5 Chap 5 Review

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VCP5 Chap 5 Review
2014-01-05 11:13:23
80 VCP questions

VCP5 Summary
Show Answers:

  1. What five factors determine resource allocation with DRS?
    • 1. Configured Memory Size (Ellen with a really big head
    • 2. Reservations (Ellen with really a big head, sitting at a a desk answering calls)
    • 3. Configured Shares (Ellen with really a big head, sitting at a a desk answering calls by on the beach shore...
    • 4. Current demands on the VMs  (...ghosts are now surrounding ellen, demanding things from her...)
    • 5. Resource Pools containing the VMs (...her desk is front of a big pool...)
  2. How do I create a DRS/HA Cluster?
    Home - Host and Clusters - [Select the datacenter] - New Cluster - [Enter Name] - Turn on HA/DRS
  3. What does grafting mean?
    When adding a host to a cluster, the system will ask if you want to "graft" that hierarchy into the cluster or start a new hierarchy. "Grafting" adds the Resource Pools on your host to those of the cluster.
  4. How do we reference a host when adding to a cluster?
    Use the Fully Qualified Domain Name (FQDN)
  5. What is "Lockdown Mode"?
    • An option in adding a host to a cluster that only authenticated vCenter users and no other remote users can access a host through the local console.
    • REMEMBER: 
  6. What is best practice with lock down mode?
    • Leave blank if uncertain. Can configure later at:
    • host configuration tab and editing the security profile.
  7. You would like to remove a host from a cluster, but cannot what might be one of the reasons?
    Migrate all VMs off of the host or shut them down.
  8. What is the first step to take when removing a host from a cluster?
    Enter into Maintenance Mode
  9. What four effects does putting a host into Maintenance Mode have on the VMs in the cluster?
    • 1. No VMs will be migrated to that host. [STOP SIGN IN FRONT OF SERVER]
    • 2. You cannot power on any new VMs in the host. [SERVER WITH CUT POWER CABLE]
    • 3. You cannot make any configuration changes to existing VMs. [SERVER WITH LOCK ON IT]
    • 4. All VMs that can use VMotion will do so immediately. [GHOSTS RUNNING OUT OF SERVER]

    • Remember
    • A workman approaches Server with Stop Sign on it,  frayed power cable sticking out and a big lock hanging on it. Caspers are flying out.
  10. How do you enter Maintenance Mode?
    Home -> Host and Clusters ->right click the host -> select Enter Maintenance Mode
  11. A VM is not removed from a host when it enters maintenance mode. What happens to it?
    • It's "orphaned" and logically remain on that host.
    • [[Casper sitting along, crying]]
  12. What factors does DRS consider to balance loads in a cluster?
    1. Power
    2. Network
    3. Memory
    4. Storage
    5. CPU
    Memory and CPU. 

    • Storage is handed by Storage DRS (SDRS)
    • Power is a non-issue
    • Network is, well, I have to look.
  13. What steps do you need to take to configure sDRS?
    • 1. Create the datastore cluster
    • 2. Select the automation level for the cluster
    • 3. Select the runtime rules for the cluster
    • 4. Select equivalent datastores to be included in the cluster.
  14. What are the two automation levels for SDRS and what are their differences?
    No Automation - will only provide recommendations

    Fully Automated - will use Storage vMotion to migrate VM files as needed.
  15. Which of the following are examples of runtime rules? Define it. 
    A. I/O Metric Inclusion
    • I/O Metric Inclusion include I/O as a factor in SDRS. It is only available when all hosts in the cluster run ESXi 5.0
  16. What is EVC?
    Enhanced vMotion Compatibility ensures that hosts in a cluster appear the same to the guest OS on the VM.
  17. What happens to new hosts once an ECU baseline is defined for a cluster?
    All new hosts must meet the baseline to join the cluster.
  18. What are the requirements for EVC?
    • 1. hardware virtualization must be enabled on the processor (Intel VT / AMD-V)
    • 2. XD/NX must be enabled
    • 3. ESX 3.5 and Update 2
    • [[and 3 and half Caspers sitting on  chip..third has his but sticking out of the NX]]

    REMEMBER: CHIP DASHING To "VicTory" - CHASED BY ZOMBIE NX (and XD) appliance- 3 Capsers
  19. What is the difference between vMotion and Storage vMotion as it relates to the VM?
    vMotion moves the state of the VM, the files are untouched. 

    Storage vMotion moves the files, but not the state.
  20. What is the most conservative option for a migration threshold for fully automated DRS?
    • Setting 1: Implements most important, Priority one recommendations needed to satisfy cluster constraints, such as affinity rules and host maintenance.
  21. If I want to only apply DRS recommendations that promise significant improvement to cluster balance, which recommendation should I apply?
    Setting 2, one notch to the right of setting one. It only applies Priority 1 and Priority 2 recommendations.
  22. If I want to apply DRS recommendations that promise a good improvement to cluster balance, which recommendation should I apply?
    Setting 3, center, applies Prioriety 1, 2, and 3
  23. If I want to apply DRS recommendations that promise even moderate improvement to cluster balance, which recommendation should I apply?
    Setting 4, one notch to the right of center.
  24. If I want to apply DRS recommendations do the most for my cluster's load balance, which recommendation should I apply?
    Setting 5, farthest to the right.
  25. What two areas of decisions is DRS involved with?
    • Initial Placement - choosing the host to which a VM is powered on in the first place.
    • Balancing Cluster Loads
  26. What is initial placement?
    Choosing the host in a cluster to which a VM is powered on in the first place.
  27. Name three DRS automation levels and define them.
    • 1. Manual -
    • vCenter only recommends

    • 2. Partially Automated -
    • Initial Placement is Automatic
    • Load Balancing Recommendations

    • 3. Fully Automated -
    • vCenter makes all decisions
  28. If I wanted vCenter to handle where my hosts start, but not balance the load, what DRS automation level should I choose?
    Partially Automated
  29. If a VM has a specific automation level set for it and the cluster, which one take priority?
    VM Automation levels default to the clusters, but you can configure them in Settings -> Virtual Machine Options
  30. What do VM Affinity Rules in DRS guide?
    1. Relationship between parent and child resource pools
    2. Relationship between child and child resource pools?
    3. Importance of processors to VMs a
    4. Relationship between VMs and hosts in a cluster.
    4. Affinity rules define which hosts a  VM should or must stay on.
  31. Where do you define Affinity or Anti-Affinity Rules?
    DRS Groups Manager
  32. The CIA creates a new VM in cluster "ProductionHosts" for agent tracking. To prevent hackers from attacking this sensative VM, the CIA must be sure that the VM tracking its agent never runs on a host running the VM managing its cyberattacks on Iran. What should the IT manager?
    Set an Affinity Rule...and pray.
  33. What happens if I disable host monitoring on a host?
    You can't. It's disabled on a cluster
  34. When would I want to to disable Host Monitoring on a cluster?
    Host Monitoring is the heartbeat between members of a cluster and is enabled by default. During network maintenance on an item that might cause isolation responses.
  35. What types of monitoring are there?
    1. VM Monitoring
    2. Host Monitoring
    3. Application Monitoring
    4. All of the Above
    5. None of the Above
    4. All of the above
  36. What happens if a VM in a cluster does not respond after 119 seconds to a heartbeat in a cluster?
    Nothing. VM Monitoring checks disk/network activity over the past 120 seconds, not 119 second. If activity is detected the VM will not be restarted.
  37. Which are not configurable options for VM Monitoring?
    1. Minimum uptime
    2. Failure interval
    3. Maximum CPU resets
    4. Maximum Per VM resets
    5. Maximum Resets Time Window
    6. Peak Memory Utilization
    • 3. Maximum CPU resets
    • 6. Peak Memory Utilization
  38. If would like to delay how long the system waits between the lack of a heartbeat and checking I/O requests for networking and storage, what variable should I change?
    The Failure Interval under the default cluster settings. Default is 30 seconds
  39. Users report that their applicaitons keep crashing and vCenter reports that a VM in my cluster is continually restarting, what might be the problem?
    The Minimum Uptime in Cluster Settings is too low. Minimum uptime is the period of time that a VM must run after restart to count as having been restarted. Default is 120 seconds
  40. What determines how often a VM can be reset in a cluster?
    Maximum Per-VM Resets. Default is 3
  41. What determines how frequently a VM can be restarted in a cluster?
    Maximum Resets Time Window.
  42. What's required for Application Monitoring? Select all that apply
    1. VMWare Tools to be installed
    2. VMWare Toosl to be installed only on the relevant hosts
    3. An SDK or Application that supports Application Monioring
    3. An SDK or Application that supports Application Monioring
  43. What two critical questions must Admissions Control Policy address?
    How many hosts will I allow to fail and know that the effected VMs  are protected?

    How will HA calculate the amount of resources to hold back on each host?
  44. If the adminission policy "Host Failures the Cluster Tolerates" is set to 10. What does that mean?
    • It meant aht 10 hosts could fail at the same time i a cluster and all of the impacted VM could be restred on the rmainn resources othe other hosts. 
    • 10 is very, very high and should be set to 1 unless this is a very large cluster.
  45. What  are three Admission Control Policies Available?
    • 1. Host Failures the Cluster Tolerates
    • 2. Percentage of cluster resources reserved as failover spare capacity
    • 3. Specify failover hosts
  46. A VM cannot power on in a cluster what might be the problem?
    The total resource requirments of all VMs
  47. A cluster has VMs withvariable CPU and memory requirements, what can be done to ensure it fails over properly? 
    Set the adminission control policy for the group to " Percentage of cluster resources reserved as failover spare capacity"
  48. What is memory overhead?
    Additional memory allocated to a running VM based on the number of vCPUs + amount of memory reservation.
  49. What VM options are available in HA?
    VM Restart Priority, which determines whether the order in which VMs are restarted. By default this is set to medium. 

    Host Isolation Response, which determines how the host should respond in the event heartbeats are no longer received from VM on the management network. The options are to leave powered on, gracefully sshut down, or power off the VMs. Default is leave powered on. 
  50. Three VMs are in a cluster with the following characteristics: 
             CPU Rsrv. | Mem. Rsrv. + Mem Ovhd.
    VM1      10%                     2G
    VM2      30%                     3G
    VM3      15%                     10G
    What values is the slot size for the group based on?
    30% and 10G. HA calculates the slot size for a VM by suing the largest reservation for CPU of any VM  in the cluster and then the largest reservation for  memory plus the memory overhead.
  51. If slot size is large, what are the implications for the cluster?
    Less capacity for VMs in the cluster and wasted resources. 
  52. You have hosts with similar CPU, memory reservations, and overhead. Which admission control policy should you use?
    A. Host Failures the Cluster Tolerates
    B. Specify failover hosts
    C. Percentage of Cluster Resources reservation as failover spare capacity
    D. None of the above.
    A. Host Failures the Cluster Tolerates
    (this multiple choice question has been scrambled)
  53. You have hosts with differnt CPU, memory reservations, and overhead. Which admission control policy should you use?
    A. Host Failures the Cluster Tolerates
    B. Specify failover hosts
    C. Percentage of Cluster Resources reservation as failover spare capacity
    D. None of the above.
    C. Percentage of Cluster Resources reservation as failover spare capacity
    (this multiple choice question has been scrambled)
  54. You organization requires dedicated machines for failover, which admision control policy should you use?
    A. Host Failures the Cluster Tolerates
    B. Specify failover hosts
    C. Percentage of Cluster Resources reservation as failover spare capacity
    D. None of the above.
    B. Specify failover hosts
    (this multiple choice question has been scrambled)
  55. What are the Storage requirements for HA?
    • a. VMs have shared storage
    • b. VM provisioned with eager-zeroed thick virtual disks
    • c. VMs are not on physical RDMs
  56. What are HA's networking requirements?
    • a. Two 1Gbps vmnics
    • b. Three more vmnics are recommended
  57. What are HA's processor / BIOS requirements?
    • Processor
    • a. 1 uniprocessor that is FT copmatible
    • b. VMs must be running a supported guest OS
    • c. Host processors must be compatible.

    • BIOS
    • a. Hardware Virtualization enabled
    • b. Hosts must run same instruction set
  58. What are HA's VM Limitations/host?
    No more than four FT machines (primaries or secondaries) on any host.
  59. In a FT configuration, what are the best practices?
    • 1. Dual home the 2 VMnics to two switches
    • 2. Deterministic teaming policy
    • 3. When using active/standby policies consider the traffic types sharing a vmnic in the event of a failure
    • 4. All active adapters should carry a particular type of traffic, such as FT logging, to the same physical switch. Standby adapter should use the other switch.
  60. Which teaming policy should NOT be used in an FT configuration?
    A. route based on source MAC hash
    B. route based on IP hash
    C. route based on originating virtual port ID
    B. FT requires a deterministic teaming policy such as orginating virtual port ID and source MAC hash.
    (this multiple choice question has been scrambled)
  61. What technology does a secondary VM use to monitor the primary VM? Over which network?
    vLockstep Technology and heartbeats over the FT Logging connection. 
  62. To test an FT connection what must you do?
    A. Shut down the Host
    B. Shut down the VM
    C. All of the above
    D. None of the above
    D. None of the above. You right-click on a F-protected VM and select "Test Fault Tolerance"
  63. When would you use FT for a VM?
    • 1. Apps requiring costant availabiltiy
    • 2. Custom apps not cluster aware
    • 3. Where cluster might be too complex
    • 4. For critical transactions
  64. There's an important transaction and I'd like to ensure its completion. Can I enable FT and what happens to the host?
    A. Yes, but must reboot the host
    B. Yes, but do not have to reboot the host.
    C. No, nothing can be done
    B. You can enable FT "on demand" for the hosts and then disabled when the transaction is finished.
    (this multiple choice question has been scrambled)
  65. What items can be added to a resource pool. Indicate all that apply. 
    A. Memory                 E. Network
    B. VM                       F. Host
    C. CPU                     G. Non FT VM
    D. Disk                     H. All 
    Memory, CPU, Disk and Network
  66. What VM object can server as the root to a resource pool?
    A standalone Host or a DRS cluster
  67. What is a Parent Pool? 
    The resource pool on a standalone host or DRS cluster at the top of the resource pool hierarchy.
  68. Identify the types of pools in a hiearchy and their relationships
    • Root
    • Parent 
    • Child 

    Children of the same parent are siblings.
  69. Which of the following are benefits of resource pools?
    A. Flexibile Hierchical Organization
    B. Isolation of reosurces between pools
    C. Sharing resources in a pool
    D. Access control and Delegation
    E. Separtion of resouces from hardware
    F. Management of a set of VMs in a multitier serives
    G. All of the above
    H. None of the above
    G. All of the above
  70. Name four attributes administered in a Resource Pool?
    Shares, Reservation, Limit, Expandable Reservation
  71. Define shares in a resource pool?
    • Shares establish relative priority between sibling Resource Pools.
    • - Relative i.e. Low, Normal, High, or Custom
    • - Proportional i.e. they receive resources depending on how many other sibling Resource Pool are competing for same physical resource.
  72. Define reservations in a resource pool?
    A guarantee that a fixed a mount of a resource is to be given to this Resource Pool
  73. Define limits in a resource pool?
    A cap on the aggregate physical resources that can be consumed by the VMs in this Resource Pool. 
  74. Define expandable reservation in a resource pool?
    Defines whether a resource pool can borrom the resources from its parent.
  75. Your organization has Production VMs and Testing VMs sharing the same host. What can be done to ensure Testing VMs don't impact Production VM performance?
    • Define a resource pool for each and
    • configure CPU and memory shares to high for Production  (low for Testing)
    • create a reservation in each category of CPU and memory
    • place a limit on Testing's CPU and Memory, constraining the CPU and Memory resources for which it can compete. 
  76. Name one risk with expandable reosurces
    • A rogue admin/application could create a VM that will constrain all resources. 
    • Powering down the VM could be difficult if there are restrictive permissions on the VM. 
  77. What steps do you need to take to clone a vApp?
    • 1. Select host / resource pool for cloned vApp
    • 2. Name the vApp
    • 3. Choose datastore (or d. cluster) for vApp
    • 4. Choose disk format - Same, Thin (only VMFS-3+) or Thick
  78. Name the components of VM state ?
    • Settings 
    • Disk 
    • Memory 
  79. Identify host requirements for vMotion
    Visibility to shared storage used by the VM on Fibre Channel, iSCSI, or NAS
  80. Identify VM requirements for vMotion
    • 1. No connection to an internal switch (zero uplink adapters)
    • 2. No connection to virtual device with a local image mounted (CD/Floppy/or ISO).
    • 3. Must able to create swap file accessible to the destination host. 
    • 4. If RDM then it must be accessible to the destination host. 
  81. Name three benefits to Storage vMotion
    • Perform storage maintenance and reconfiguration without VM downtime
    • Redistribute storage loads without VM downtime
    • Evacuate physical stoage and perform storage tiering without VM downtime. 
  82. What factors are normally considered when vMotion checks for CPU compatibility?
    • Host CPU vendor, family and model
    • BIOS setting that might disable CPU features
    • ESX/ESXi version on host
    • VM virtual hardware version
    • VM guest OS
  83. You'd like to vMotion a VM, but the CPU check deteremined there were differences between the two hosts. What can you do?
    • Hide some of the instruction set by masking the CPUID. Done per VM in the advanced settings under VM properties
    • Configure Enhanced vMotion Compatibility
  84. What is EVC mode?
    Enahcned vMotion Compatibility mode. It ensures that all hosts in a cluster present a feature set of the baseline processor.
  85. Identify compatibility requirements for EVC Mode:
    • VMs running with a feature set greater than EVC mode must be powered off or migrated out of the cluster.
    • CPUs must be from one vendor
    • ESX/ESXi 3.5 Update 2+
    • Connected to the vCenter System
    • Advanced CPU feature set, such as hardware virtualization support (AMD-V or INtel VT) and AMD NX or Intel XD enabled in Bios, if they are available
    • Configured for vMotion
    • Supported CPUs for EVC mode
  86. What is best practice with EVC mode:
    A. Maximum performance by toggling the NX/XD bits and selecting the highest EVC Mode.
    B. Ensure all your applications can run by selecting the lowest EVC mode common to all hosts in the cluster
    C. Maximum performance and select highest EVC mode.
    D. Selecting the default EVC configuration. 
    C. Maximum performance and select highest EVC mode.
    (this multiple choice question has been scrambled)
  87. What is AMD NX?
    AMD No eXecute (NX) is part of the advanced CPU feature set offered by AMD and is a requirement for Enhnaced vMotion Compatibiltiy.
  88. What is Intel XD?
    Intel eXecuter Disable (XD) is part of the advanced CPU feature set offered by Intel and is a requirement for Enhnaced vMotion Compatibiltiy.
  89. What vSphere feature provides incremental backup?
    Changed Block Tracking
  90. What is Changed Block Tracking?
    A vSphere feature that provides snapshots (incremental backups)
  91. What file is created with an incremental backup?
    • delta.vmdk
    • .vmsn - with VM memory in the snapshot
  92. In SnapShot manager what does the green arrow indicate?
    A. A snapshot with disk
    B. A snapshot with memory 
    C. The current snapshot
    D. The latest snapshot reverted to
    B. A snapshot with memory 
    (this multiple choice question has been scrambled)
  93. What is the effect of deleting a snapshot before the "You are Here" indicator?
    The snapshot would be gone, but their effect would be committed to the current state of the VM.
  94. How can you determine if a VM has snapshots that need consolidating?
    Add "Need Consolidation" column to the VM tab of the Cluster / Host.
  95. What tool would I use to backup my host?
    A. VMware Data Recovery (VDR) but only in large environments.
    B. Snapshots. They save time.
    C. Snapshot. They save the cost of additional software. 
    D. VMware Data Recovery (VDR) but only in small environments.
    D. VMware Data Recovery (VDR) but only in small environments.
    (this multiple choice question has been scrambled)
  96. What datastores  can VDR deduplicate?
    • VMDks,
    • RDMs
    • CIFS
  97. Giw nabt of deduplciated datastores can you have per VDR appliance?
  98. What is the maximum size for the VDR datastores?
    • 1 TB (VMDKs or RDM)
    • 500 GB (CIFS shares)
  99. What is the maximum number of VMs in a VDR  datastore?
    100 VMs
  100. How many VMS can be simultaneiously backed up by VDR?
    8 VMs
  101. How many VDR appliances can vCenter manage? How many VMs can each appliacne have?
    10 VDR appliances with 100 VMs each.
  102. The administrator would like to use VDR to protect VMs, but the it's not accessible from vSphere. What's the first thing to be done?
    • Install the VDR client plugin, idiot.
    • Then install the VDR bakcup appliances (ESX 3.5 Update 2+) 
    • Then add a hard disk to the backup appliance
  103. If I wanted to restore an individual file from a backed up VM what tool would I use?
    WindowsFLR  or LinuxFLR
  104. What are WindowsFLR / LinuxFLR?
    NON ESSENTIAL tools that provide advanced features to VDR, such as restoring individual files from a backed up VM instead of the entire file. 
  105. I would like the Host Profile feature. What version of vSphere to I need to purchase?
    1. Basic
    2. Enterprise 
    3. Enterprise Plus
    4. Enterprise Plus v2.3
    3. Enterprise Plus
  106. Once you've selected a host to apply a host profile and identified a host proifle to apply, what is the next step?
    enter maintenance mode
  107. You need to keep your software updated, but don't want to be bothered doing so. What are your choices?
    Define  and apply a host profile to the hosts. check compliance. You can also use vCenter Update Manager (VUM).
  108. You've installed the vCenter Update Manager (VUM), but it's not available from vSphere. What's the problem?
    Install the Update Manger plug-in.
  109. Which object is no longer support for patching by the VUM?
    1. networking
    2. storage
    3. guest OS
    4. databases
    5. Oracle database version 3.8
    3. guest OS
  110. What are baselines in the context of a VUM?
    Group of patches combined together
  111. What types of baselines can you create in VUM?
    • Host Patch - VMWare patches for a host(s)
    • Host Extension - Plug-ins etc from VMware / third-parties that extend host capabilites
    • Host Upgrade - sepcifically for upgrdaing host to the next level
    • VA Upgrade - updates to virtual appliances provided by VA vendors
    • VM Upgrade - upgrade the VMware Toolls and virtual hardware on VMs and templates.
  112. If I only wanted to apply patches that meet a specified criteria, what types of baselines would I require?
    • Dynamic. 
    • Fixed baselines are for patches that are the same every time.
  113. What criteria can you set in a dynamic baseline used when creating a patch?
    • Patch Vendor
    • Product
    • Severity
    • Release date
    • Category