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1.) The VMFS datastore can be extended over __ physical storage extents of the same storage type.
a.) 12
b.) 24
c.) 32
d.) 42
2.) A SAN uses zoning to restrict access to ____________ not allocated to that server.
a.) Storage arrays
b.) zone
c.) fabric
d.) datastore
3.) Zones are typically created for each group of servers that access shared group of storage devices and LUNs. (true/false)
a.) True
b.) False
4.) Zones define which HBAs can connect to which ____?
a.) SP's
b.) datastores
c.) servers
d.) network
5.) LUN masking is a process that makes a LUN available to some hosts and unavailable to other hosts. (true/false)
a.) True
b.) False
6.) LUN masking is performed at the SP or server level. (true/false)
a.) True
b.) False
7.) _________ is a globally unique identifier for a port that allows certain applications to access
the port.
a.) World Wide Port Name
b.) Port_ID
c.) MAC address
d.) IP address
8.) This unique ID enables routing of data through the SAN to that port.
a.) Port_ID
b.) MAC address
c.) World Wide Port Name
d.) IP address
9.) _______ is a special high-performance file system format that is optimized for storing virtual machines.
a.) VMFS
b.) EFS
c.) NTFS
d.) RDM
10.) ______is a value that represents the relative metric for controlling disk bandwidth to all virtual machines.
a.) I/O
b.) Shares
c.) Resources
d.) TCP/IP
11.) _______ locates the file in the VMFS volume that corresponds to the guest virtual machine disk.
a.) VMKernel
b.) FC protocol
c.) Storage Processor
d.) host HBA
12.) ________ Packages the request according to the rules of the FC protocol.
a.) VMKernel
b.) FC protocol
c.) Storage Processor
d.) host HBA
13.) __________ is a technique that lets you use more than one physical path that transfers data between the host and external storage device.
a.) networking
b.) physical path
c.) Zoning
d.) Multipathing
14.) _______ supports all storage arrays listed on the VMware storage HCL and provides a
default path selection algorithm based on the array type.
a.) NMP
b.) SMP
c.) ESX
d.) SATP
15.)Path Selection Plugins (PSPs) run in conjunction with the VMware NMP and are responsible for choosing a physical path for I/O requests. (true/false)
a.) True
b.) False
16.)Selects the path the ESX/ESXi host used most recently to access the given device.
a.) Fixed
b.) Round Robin
c.) MRU
d.) SATP
17.) Uses the designated preferred path, if it has been configured.
a.) Fixed
b.) Round Robin
c.) MRU
d.) SATP
18.) Uses a path selection algorithm that rotates through all available paths enabling load balancing across the paths.
a.) Fixed
b.) Round Robin
c.) MRU
d.) SATP
19.) VMware recommends that you set the timeout to ___ seconds to ensure optimal performance.
a.) 10
b.) 25
c.) 30
d.) 60
20.) When you boot from an active/passive storage array, the SP whose WWN is specified in the
BIOS configuration of the HBA must be _______. If that SP is ________, the HBA cannot support the boot process.
a.) active active
b.) passive passive
c.) active passive
d.) passive active
21.)When referring to an Active/Passive storage array if you want to avoid the possibility of path thrashing, the default multipathing policy is ___________. The ESX/ESXi system sets the default policy when it identifies the array.
a.) MRU not fixed
b.) Fixed not MRU
c.) Round Robin not MRU
d.) MRU not Round Robin
22.)A path to the storage device in the ____________ directory.
a.) /etc/vmware/
b.) /vmfs/volumes/
c.) /dev/sda
d.) /vmfs/devices/
23.) Storage device names have the following formats vmhba#:C#:T#:L#, what is vmhba#:
a.) is the name of the storage adapter. The name refers to the physical
adapter on the host, not to the SCSI controller used by the virtual machines.
b.) is the storage channel number.
c.) is the target number. Target numbering is decided by the host and might
change if there is a change in the mappings of targets visible to the host.
Targets that are shared by different hosts might not have the same target
number.
d.) is the LUN number that shows the position of the LUN within the target.
The LUN number is provided by the storage system. If a target has only
one LUN, the LUN number is always zero (0).
24.) Storage device names have the following formats vmhba#:C#:T#:L#, what is C#:
a.) is the name of the storage adapter. The name refers to the physical
adapter on the host, not to the SCSI controller used by the virtual machines.
b.) is the storage channel number.
c.) is the target number. Target numbering is decided by the host and might
change if there is a change in the mappings of targets visible to the host.
Targets that are shared by different hosts might not have the same target
number.
d.) is the LUN number that shows the position of the LUN within the target.
The LUN number is provided by the storage system. If a target has only
one LUN, the LUN number is always zero (0).
25.) Storage device names have the following formats vmhba#:C#:T#:L#, what is T#:
a.) is the name of the storage adapter. The name refers to the physical
adapter on the host, not to the SCSI controller used by the virtual machines.
b.) is the storage channel number.
c.) is the target number. Target numbering is decided by the host and might
change if there is a change in the mappings of targets visible to the host.
Targets that are shared by different hosts might not have the same target
number.
d.) is the LUN number that shows the position of the LUN within the target.
The LUN number is provided by the storage system. If a target has only
one LUN, the LUN number is always zero (0).
26.) Storage device names have the following formats vmhba#:C#:T#:L#, what is L#:
a.) is the name of the storage adapter. The name refers to the physical
adapter on the host, not to the SCSI controller used by the virtual machines.
b.) is the storage channel number.
c.) is the target number. Target numbering is decided by the host and might
change if there is a change in the mappings of targets visible to the host.
Targets that are shared by different hosts might not have the same target
number.
d.) is the LUN number that shows the position of the LUN within the target.
The LUN number is provided by the storage system. If a target has only
one LUN, the LUN number is always zero (0).
27.)By default, the VMkernel scans for LUN ____ to LUN ___ for every target
a.) 0 - 50
b.) 0 – 100
c.) 0 – 200
d.) 0 – 255
28.)N-Port ID Virtualization (NPIV) is an ANSI T11 standard that describes how a ______ Fibre Channel HBA port can register with the fabric using several worldwide port names (WWPNs).
a.) single
b.) dual
c.) quad
d.) multi
29.)By using NPIV a SAN administrator can monitor and route storage access on a _________.
a.) ESX Server basis
b.) ESX cluster basis
c.) per virtual machine basis
d.) Datacenter basis
30.)_________ enables the VMkernel to perform uninterrupted LUN scanning when a storage system presents LUNs with nonsequential LUN numbering, for example 0, 6, and 23.
a.) NPIV
b.) Raw device mapping
c.) vMotion
d.) sparse LUN support
31.) _________ is a virtual HBA that appears to the FC fabric as a physical HBA, that is, it has its own unique identifier, the WWN pair that was assigned to the virtual machine.
a.) VPORT
b.) WWN
c.) HBA
d.) MAC
32.)What happens to the VPORT when a virtual machine is powered off?
a.) it remains connected to the fabric
b.) it is destroyed an no longer shows on the fabric
c.) it it turned off until the virtual machine is powered on
d.) nothing
33.)A VPORT is created on each physical HBA that a physical path is found on. (true/false)
a.) True
b.) False
34.)If a host has four physical HBAs as paths to the storage, ________ paths must be zoned to the virtual machine by the SAN administrator.
a.) at least one path
b.) at least two paths
c.) all physical paths
d.) none of the above
35.)NPIV can only be used for virtual machines with ____ disks.
a.) VMFS
b.) RDM
c.) EXT3
d.) NTFS
36.)Only ____ WWN pairs are generated per virtual machine.
a.) 1
b.) 2
c.) 3
d.) 4
37.)Based on a set of claim rules defined in the _________ file,
the host determines which multipathing plugin (MPP) should claim the paths to a particular device and becomeresponsible for managing the multipathing support for the device.
a.) /usr/bin/esx.conf
b.) /etc/vmware/esx.conf
c.) /usr/local/esx.conf
d.) /home/vmware/esx.conf
38.)________ can occur as a result of the following path choice: If server A can reach a LUN only through one SP, and server B can reach the same LUN only through a different SP, they both continually cause the ownership of the LUN to move between the two SPs, effectively ping-ponging the ownership of the LUN.
a.) Excessive I/O
b.) SCSI reservation
c.) LUN trespassing
d.) Path thrashing
39.)_________ software allows an administrator to make an instantaneous copy of any single virtual disk defined within the disk subsystem.
a.) replication
b.) snapshot
c.) duplication
d.) copy
40.)__________ transport SCSI requests and
responses between the ESX/ESXi system and the target storage device on the IP network.
a.) Fiber cables
b.) HBA
c.) Initiators
d.) Storage area networks
41.) ESX/ESXi supports _________ iSCSI initiators
a.) hardware
b.) software
c.) hardware-based and software-based
d.) none of the above
42.) How many IP addresses are associated with each iSCSi port?
a.) 1
b.) 2
c.) 3
d.) 4
43.) The iSCSi name can either start with either ____ or ___.
a.) iqn or eui
b.) wwn or ip
c.) san or wwn
d.) iqn or wwn
44.) In the iSCSi naming convention the section after the iqn. What is the next section represent?
a.) naming-authority
b.) yyyy-mm
c.) unique name
d.) eui
45.) In the iSCSi naming convention the unique name is usually __________.
a.) reverse syntax of the internet domain of the naming authority
b.) vmware-iscsi
c.) extended unique identifier
d.) name of the server
46.) Enterprise unique identifiers take the form eui.____?
a.) 64 hex digits
b.) 32 hex digits
c.) 24 hex digits
d.) 16 hex digits
47.) iSCSi supports which security protocol?
a.) EAP
b.) Radius
c.) Kerberos
d.) CHAP
48.) A ____ datastore holds virtual machine files, directories, symbolic links, RDMs, and so on.
a.) RDM
b.) VMFS
c.) NTFS
d.) LUN
49.) For software iSCSI, networking for the VMkernel must be configured.(True/false)
a.) True
b.) False
50.) To verify network configuration what took can be used?
a.) vicfg-iscsi
b.) vmware-cmd
c.) esxcli
d.) vmkping
51.) CHAP has to be configured on both the initiator side and the storage side (true/false)
a.) True
b.) False
52.) ESX supports which discovery protocols for iSCSi?
a.) active and passive
b.) dynamic and static
c.) active and static
d.) dynamic and passive
53.) CHAP uses a ____-way handshake algorithm to verify the identity of your host and, if applicable, of the iSCSI target when the host and target establish a connection.
a.) one
b.) two
c.) three
d.) four
54.) CHAP configuration supports two methods of authentication one way or mutual (true/false)
a.) true
b.) false
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