Module 7 Lesson 1: Virtual Machine Concepts - VMware vSphere 4.1 Study Flash Cards

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Module 7 Lesson 1: Virtual Machine Concepts - VMware vSphere 4.1 Study Flash Cards
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Virtual Machine Concepts - VMware vSphere 4.1 Study Flash Cards
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  1. What is a Virtual Machine?

    What is a virtual machine?
    A virtual machine is set of discrete files configured with a set of virtual hardware on which a supported guest operating system and its applications run.
  2. What is a Virtual Machine?

    What does a virtual machine's configuration file describe?
    A virtual machines's configuration file describes the virtual machine's configuration, which includes the virtual hardware, such as CPU, memory, disk, network interface, CD-ROM drive and floppy drive.
  3. What is a Virtual Machine?

    What is a best practice when naming virtual machines?
    A best practice is to avoid using special characters, including spaces, in the Virtual machine name.
  4. What is a Virtual Machine?

    What is the name of a virtual machine used for when the virtual machine is created?
    The virtual machine name is used to name the files that make up the virtual machine.
  5. What Files Make Up a Virtual Machine?

    What files does a virtual machine consists of?
    • VM_name.vmx - Virual machine configuration file.
    • VM_name.vmdk - File discribing virtual disk characteristics
    • VM_name-flat.vmdk - Preallocated virtual disk file that contains the data
    • VM_name.nvram - Virtual machine BIOS
    • vmware.log, vmware-#.log - Virtual machine log file and files containing old virtual machine log entries
    • VM_name.vswp - Virtual machine swap file
    • VM_name.vmsd - File that describes the virtual machine's snapshots
    • Template_name.vmtx - Virtual machine template configuration file

    Other files exist for snapshots, raw disk mappings, NFS locks, and change tracking with VMware Data Recovery.
  6. What Files Make Up a Virtual Machine?

    Except for log files, what does the name of each virtual machine's file start with?
    The virtual machines's name (VM_name).
  7. What Files Make Up a Virtual Machine?

    If a virtual machine is converted to a template, a virtual machine template configuration file (.vmtx) replaces the virtual machine configuration file (.vmx). True or False?

    If False, Why?
    True.
  8. What Files Make Up a Virtual Machine?

    Up to how many virtual machine log files (.log) are maintained at any one time?
    Up to Six log files.
  9. What Files Make Up a Virtual Machine?

    What does a snapshot discription file (.vmsd) contain if the virtual machine has no snapshots?
    The snapshot file is empty if the virtual machine has no snaphots.
  10. What Files Make Up a Virtual Machine?

    If a virtual machine has more than on disk file, what is the file pair for the second disk file and later named?
    VM_name_#.vmdk and VM_name_#-flat.vmdk, where # is the next number in the sequence, starting with 1. eg...

    • First disk = Test01.vmdk, Test01-flat.vmdk
    • Second disk = Test01_1.vmdk, Test01_1-flat.vmdk
  11. What Files Make Up a Virtual Machine?

    What additional file will a virtual machine have if it resides on an NFS datastore?
    lock file.
  12. What Files Make Up a Virtual Machine?

    When will a virtual machine have a change tracking file?
    If it is backed up with the VMware Data Recovery appliance.
  13. Displaying a Virtual Machine's Files

    On what type of datastores are virtual machine files stored on?
    On either a VMware vStorage VMFS datastore or an NFS datastore.
  14. Displaying a Virtual Machine's Files

    How can you find out what datastore a virtual machine is using?
    Select the virtual machine in the inventory and view its Summary tab.
  15. Displaying a Virtual Machine's Files

    The Datastore Browser shows a virtual machine's virtual disk as consisting of only one file, the .___ file. In reality, a virtual disk consists of how many files?
    The Datastore Browser shows a virtual machine's virtual disk as consisting of only one file, the .vmdk file. In reality, a virtual disk consists of two files?

    • 1. VM_name.vmdk - File discribing virtual disk characteristics.
    • 2. VM_name-flat.vmdk - Preallocated virtual disk file that contains the data.
  16. Displaying a Virtual Machine's Files

    Which virtual disk file is not shown when using the Datastore Browser to view a virtual machines files?
    VM_name-flat.vmdk - Preallocated virtual disk file that contains the data.
  17. Using the Storage Views Tab to Display Files

    How can you view/display all of a virtual machine's files including the virtual disk file no shown when using the Datastore Browser?
    Select a virtual machine in the inventory, click the Storage Views tab, click the reports button, and select Show all Virtual Machine Files from the drop down menu.
  18. Virtual Machine Hardware

    You can add video devices to a virtual machine? True or False?

    If False, Why?
    False. You cannot add video devices but you can configure available video devices and video cards.
  19. Virtual Machine Hardware

    You can add multiple USB devices, such as security dongles and mass storage devices, to a virtual machine on a VMware ESX/ESXi host to which the devices are physically attached. True or False?

    If False, Why?
    True.
  20. Virtual Machine Hardware

    When you attach a USB device to a physical host, the device is available to all virtual machines in the datacenter. True or False?

    If False, Why?
    False. Virtual machines cannot connect to a USB device attached to a host on which the virtual machine does not reside on.
  21. Virtual Machine Hardware

    What is the Maximum USB devices connected to a virtual machine?
    20
  22. Virtual Machine Hardware

    What is the Maximum Virtual CPUs per virtual machine (Virtual SMP) ?


    8
  23. Virtual Machine Hardware

    What is the Maximum IDE devices per virtual machine?




    4
  24. Virtual Machine Hardware

    What is the Maximum Parallel ports per virtual machine?

    3
  25. Virtual Machine Hardware


    What is the Maximum Virtual SCSI adapters per virtual machine?
    4
  26. Virtual Machine Hardware

    What is the Maximum Virtual NICs per virtual machine?
    10
  27. Virtual Machine Hardware


    What is the Maximum Floppy controllers per virtual machine?
    1
  28. Virtual Machine Hardware


    What is the Maximum Serial ports per virtual machine?
    4
  29. Virtual Machine Hardware


    What is the Maximum RAM per virtual machine?
    255GB
  30. Virtual Machine Hardware


    What is the Maximum Virtual SCSI targets per virtual machine?
    60
  31. Virtual Machine Hardware


    What is the Maximum IDE controllers per virtual machine?
    1
  32. Virtual Machine Hardware


    What is the Maximum VMDirectPath SCSI targets per virtual machine?
    60
  33. Virtual Machine Hardware


    What is the Maximum Concurrent remote console connections to a virtual machine?
    40
  34. Virtual Machine Hardware


    What is the Maximum Floppy devices per virtual machine?
    2
  35. Virtual Machine Hardware

    What is the Maximum VMDirectPath PCI/PCIe devices per virtual machine?
    4
  36. Virtual Machine Hardware


    What is the Maximum Virtual machine swap file size?
    255GB
  37. Virtual Machine Hardware


    What is the Maximum virtual machine Disk Size?
    2TB minus 512B
  38. Virtual Machine Hardware

    What is the Maximum Virtual SCSI targets per virtual SCSI adapter?
    15
  39. CPU and Memory

    Many guest operating system/application combinations are not enhanced by the additional CPU. True or False?

    If False, Why?
    True
  40. CPU and Memory

    For a virtual machine, what is memory size?
    Memory size is the maximum amount of physical memory that the virtual machine can use.
  41. Virtual Disk

    What does adding the first virtual disk to a virtual machine implicitly add?
    Adding the first virtual disk implicitly adds a virtual SCSI adapter for the virtual disk to be connected.
  42. Virtual Disk

    Name the virtual SCSI adapters a ESX/ESXi host offers.
    • BusLogic Parallel
    • LSI Logic Parallel
    • LSI Logic SAS
    • VMware Paravirtual
  43. Virtual Disk

    The Virtual Machine Creation wizard in the vSphere Client selects the type of virtual SCSI adapter based on what?
    Based on the choice of guest operatiing system.
  44. Virtual Disk

    By default, how is a virtual disk provisioned? Thick or thin?
    By default, a virtual disk is thick provisioned. You can choose to create a thin-provisioned disk instead.
  45. Virtual Disk

    How many options does the independent disk mode have and what they?
    The independent disk mode has two options:

    • persistent
    • nonpersistent
  46. Virtual Disk

    When would you use the Independent - persistent option disk mode?
    Use the persistent option if you want changes to be immediately and permanently written to the disk.

    In most cases, you do not need to change the disk mode for virtual disks.
  47. Virtual Disk

    When would you use the Independent - nonpersistent option disk mode?
    Use the nonpersistent option to discard changes when the virtual machine is powered off or reverted to a snapshot.

    In most cases, you do not need to change the disk mode for virtual disks.
  48. Virtual Network Interface Card

    What are the network adapters that might be available for a virtual machine?
    • Flexible
    • e1000
    • vmxnet2
    • vmxnet3
  49. Virtual Network Interface Card

    Whenever possible which virtual machine network adapter is it recommended to use?
    vmxnet3
  50. Virtual Network Interface Card

    What network adapter does a Flexible adapter function as if VMware tools have been installed on a virtual machine?
    vmxnet virtual network adapter
  51. Virtual Network Interface Card

    A flexible adapter funtions as a vlance adapter if Vmware Tools are not installed on the virtual machine. True or False?

    If False, Why?
    True
  52. Virtual Network Interface Card

    What are the network adapters that might be available for a virtual machine?
    • Flexible
    • e1000
    • vmxnet2
    • vmxnet3
  53. Virtual Network Interface Card

    Whenever possible which virtual machine network adapter is it recommended to use?
    vmxnet3
  54. Virtual Network Interface Card

    What network adapter does a Flexible adapter function as if VMware tools have been installed on a virtual machine?
    vmxnet virtual network adapter
  55. Virtual Network Interface Card

    A flexible adapter functions as a vlance adapter if Vmware Tools are not installed on the virtual machine. True or False? If False, Why?
    True
  56. Virtual Network Interface Card

    Define/describe a Flexible virtual network adapter.
    Flexible - Functions as a vlance adapter if VMware Tools is not installed in the virtual machine. It functions as a vmxnet driver if VMware Tools is installed.
  57. Virtual Network Interface Card

    Define/describe a vlance virtual network adapter.
    vlance - An emulated version of the AMD 79c970 PCnet32 LANCE NIC, an older 10Mbps NIC with drivers available in most 32-bit guest operating systems, except Window Vista and later.
  58. Virtual Network Interface Card

    Define/describe a vmxnet virtual network adapter.
    vmxnet - A virtual network adapter that has no physical counterpart, this adapter is optimozed for performance in a virtual machine. Because operating system vendors do not provide built-in driver for this card, you must install VMware Tools to make available a driver for the vmxnet network adapter.
  59. Virtual Network Interface Card

    Define/describe a e1000 virtual network adapter.
    e1000 - An emulated version of the Intel 82545EM Gigabit Ehternet NIC, with drivers available in most newer guest operating systems, including Windows XP and later and Linux versions 2.4.19 and later. It is the default adapter type for virtual machines that run 64-bit guest operating systems. e1000 is required for VLAN guest tagging support.
  60. Virtual Network Interface Card

    Define/describe a vmxnet2 virtual network adapter
    vmxnet2 (Enhanced vmxnet) - The vmxnet2 adapter is based on the vmxnet adapter. But it provides high-performance features commonly used on modern networks, such as jumbo frames and hardware off-loads
  61. Virtual Network Interface Card

    Define/describe a vmxnet3 virtual network adapter.
    vmxnet3 - The vmxnet3 adapter is the next generation of a paravirtualized NIC desgned for performance. It is not related to vmxnet or vmxnet2. It offers all the features available in vmxnet2 and adds serveral features, like mutiqueue support (called Receive-Side Scaling in Windows), IPv6 off-loads, and MSI/MSI-X interrupt delivery. vmxnet3 devices support fault tolerance and record/replay. This virtual network adapter is supported only for a limited set of guest operating systems and is avaiable ony on virtual machines with hardware version 7.
  62. Other Devices

    What is the minimum required virtual machine hardware?
    CPU and virtual memory.
  63. Other Devices

    What can the virtual CD/DVD drive on the virtual machine point to?
    • The CD/DVD drive on the ESX/ESXi host
    • A CD/DVD ISO (.iso) image
    • The CD/DVD drive on your local system
  64. Other Devices

    What can the virtual floppy drive on the virtual machine point to?
    • The floppy drive on the ESX/ESXi host
    • A floppy (.flp) image
    • The floppy dirve on your local system
  65. Other Devices

    You can not add generic SCSI devices, such as tape libraries, to a virtual machine. True or False?

    If False, Why?
    False. You can add generic SCSI devices, such as tape libraries. These devices can be connected to the virtual SCSI adapters on the virtual machine.
  66. Virtual Machine Console

    The virtual machine console is normally used to connect to a virtual machine for daily tasks. True or False? If False, Why?
    False. The virtual machine console is used for tasks like power cycling, configuring hardware, and troubleshooting network issuses similar to how iLO, DRAC, IPMI are used for physical machines. VMware View, Remote Desktop connection, Virtual Network connection and other options are normally used to connect to a virtual desktop
  67. Virtual Machine Console

    In the vSphere Client how can you send the Ctrl+Alt+Del key sequence to a virtual machine?
    Press Ctrl+Alt+Ins in the virtual machine console or select VM > Guest in the virtual machine console menu bar and select Send Ctrl+Alt+Del from the drop-down menu.
  68. Virtual Machine Console

    What keyboard key sequence should you press To release the pointer from a virtual machine console, so that you can use it in other windows?
    press Ctrl+Alt
  69. Virtual Machine Console

    What are the steps to view a virtual machine's console from the vCenter inventory?
    Right-click the virtural machine in the inventory and select Open Console.
  70. Virtual Machine Console

    In the vSphere Client, what provides access to the mouse, keyboard and screen functionality for a virtual machine?
    The virtual machine's console.
  71. Virtual Machine Console

    The virtual machine console allows access to the BIOS of a virtual machine. True or False?

    If False, Why?
    True.
  72. Virtual Machine Console

    After creating a virtual machine, how can you access the virtual machine to install an operating system?
    Use the virtual machine's console.

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