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Testking VCP-410

QUESTION NO: 277
The Runtime Name for a Fibre Channel storage device is equivalent to?
A. The Universally Unique Identifier (UUID) to the device
B. The name of the current path to the device in vmhba:C:T:L format
C. The name of the first discovered path to the device in vmhba:C:T:L format
D. The Network Address Authority (NAA) name of the device

Answer: C

QUESTION NO: 278
In the vSphere Client the Virtual Machine Resource Allocation tab shows
Host Memory and Guest Memory. 220 702 What is the meaning of these terms? (Choose Two)?
A. Host memory is the actual memory usage of the Virtual Machine.
B. Guest Memory is the actual memory usage of the Virtual Machine
C. Host memory is the amount of physical memory that has been allocated to a Virtual
Machine
D. Guest Memory is amount of physical memory that has been allocated to a Virtual
Machine

Answer: B,C

QUESTION NO: 279
Which of the following occurs if VMware Fault Tolerance is enabled for a
virtual machine in a DRS/HA cluster, but Host Monitoring is not enabled for VMware
HA?
A. If the primary FT VM fails, the secondary FT VM does not take over
B. Memory reservations for the FT VM cannot be upheld and there might not be
sufficient resources to restore redundancy if an HA event occurs
C. If the primary FT VM fails, a new secondary FT VM is not created and the VM is no
longer redundant
D. Anti-affinity rules for the FT VM cannot be upheld and both the primary and
secondary FT VM could reside on 9L0-403 the same host

Answer: C

QUESTION NO: 274
Which of these factors indicates a high likelihood that the performance of a virtual
machine is being constrained by disk I/O?
A. A large number of kilobytes read and written
B. A large number of virtual disks on its SCSI bus
C. A large number of disk shares
D. A long SCSI queue length

Answer: D

QUESTION NO: 275
In configuring a VMware HA Cluster the System Administrator can
configure Admission Control. There are two options: Prevent VMs from being powered
on if they violate availability constraints, or Allow VMs to be powered on even if they
violate availability constraints. If the System Administrator chooses the option Prevent
VMs from being powered on if they violate availability constraints then which of the
following apply in the event of an ESX Host failure (Choose Two)?
A. VMware HA enforces the failover capacity defined for the cluster
B. Only Virtual Machines with a high restart priority will be restarted on surviving ESX
Hosts
C. Virtual Machines running on failed ESX Hosts will not be restarted on surviving ESX
Hosts
D. VMware HA restarts Virtual 9L0-510 Machines on surviving hosts with the most unreserved
capacity

Answer: A,D

QUESTION NO: 276
What is the technology VMware Data Recovery uses to back up a Windows
2003 virtual machine?
A. Volume Shadow Copy Service
B. Crash-consistent quiescing
C. LGTO SYNC driver
D. EMC Autostart Manager

Answer: A

VCP-410 Test Questions

QUESTION NO: 280
When creating a Service Console port, what is the purpose of the gateway
device (Choose Two)?
A. The gateway device is the network adapter used for the default route.
B. A gateway device is always required.
C. The gateway device is the Service Console port used for VMkernel networking.
D. A gateway device is required when 2 or more uplinks are using the same subnet.

Answer: A,D

QUESTION NO: 281
Which of the following would 220 701 prevent the application of a Host Profile to an
ESX Host (Choose Two)?
A. The host has not been placed into Maintenance Mode
B. The host is an ESX 3.5 Host
C. The host has multiple profiles attached
D. The host is an ESXi Host

Answer: A,B

QUESTION NO: 282
An ESX Server in a DRS cluster is placed into Maintenance Mode. Which of
the following conditions are true (Choose Two)?
A. If the DRS cluster is in fully automated mode, DRS will make a migration
recommendation and then VMotion Virtual Machines to other ESX servers
B. If the DRS cluster is in partially automated mode then the Virtual Machines that have a
High Restart Priority will be moved to another ESX Server
C. If the DRS cluster is in partially automated mode then the vCenter Administrator must
VMotion Virtual Machines to another ESX Server
D. If the DRS cluster is in fully automated mode, DRS will automatically VMotion
Virtual Machines to other ESX Servers

Answer: C,D

QUESTION NO: 277
The Runtime Name for a Fibre Channel storage device is equivalent to?
A. The Universally Unique Identifier (UUID) to the device
B. The name of the current path 220 702 to the device in vmhba:C:T:L format
C. The name of the first discovered path to the device in vmhba:C:T:L format
D. The Network Address Authority (NAA) name of the device

Answer: C

QUESTION NO: 278
In the vSphere Client the Virtual Machine Resource Allocation tab shows
Host Memory and Guest Memory. What is the meaning of these terms? (Choose Two)?
A. Host memory is the actual memory usage of the Virtual Machine.
B. Guest Memory is the actual memory usage of the Virtual Machine
C. Host memory is the amount of physical memory that has been allocated to a Virtual
Machine
D. Guest Memory is amount of physical memory that has been allocated to a Virtual
Machine

Answer: B,C

QUESTION NO: 279
Which of the following occurs if VMware Fault Tolerance is enabled for a
virtual machine in a DRS/HA cluster, but Host Monitoring is not enabled for VMware
HA?
A. If the primary FT VM fails, the secondary FT VM does not take over
B. Memory reservations for the FT VM cannot be upheld and there might not be
sufficient resources to restore redundancy if an HA event occurs
C. If the primary FT VM fails, a 220 701 new secondary FT VM is not created and the VM is no
longer redundant
D. Anti-affinity rules for the FT VM cannot be upheld and both the primary and
secondary FT VM could reside on the same host

Answer: C

VCP-410 Dumps

o VMware HA Attributes:
Attribute Description
das.isolationaddress[...} Address to ping to determine if a host is isolated from the network. If not specified, the default
gateway of the console network is used. Can specify multiple isolation addresses (up to 10).
das.usedefaultisolationaddress Specifies whether or not this default is used (true|false).
das.failuredetectiontime Failure detection time for host monitoring. The default is 15000 milliseconds
das.failuredetectioninterval Heartbeat interval among VMware HA hosts. Default is 1000 milliseconds.
das.defaultfailoverhost The host 640 802 Dumps that VMware HA tries to fail virtual machines over to.
das.isolationShutdownTimeout Time the system waits for a VM to shut down before powering it off. Default is 300 seconds.
das.slotMemInMB The maximum bound on the memory slot size.
das.slotCpuInMHz The maximum bound on the CPU slot size.
das.vmMemoryMinMB Memory resource value assigned to a VM if it’s not specified or zero. Default is 0 MB.
das.vmCpuMinMHz Default CPU resource value assigned to a VM if it’s not specified or zero. Default is 256MHz.
das.iostatsInterval I/O stats interval for VM monitoring sensitivity. Default is 120 (seconds).
o If you change the value of any of the following advanced attributes, you must disable and then re-enable VMware HA before your changes
take effect.
o das.isolationaddress[...]
o das.usedefaultisolationaddress
o das.failuredetectiontime
o das.failuredetectioninterval
o das.isolationShutdownTimeout
o On ESX hosts, HA communications travel over service console networks.
o On ESXi hosts, HA communications travel over VMkernel networks.
o HA needs and automatically opens the following firewall ports:
o Incoming port: TCP/UDP 8042-8045
o Outgoing port: TCP/UDP 2050-2250
o VMware Fault Tolerance provides continuous availability for virtual machines by creating and maintaining a Secondary VM that is identical to,
and continuously available to replace, the Primary VM in the event of a failover situation.
o A fault tolerant VM and its 640-802 secondary copy are not allowed to run on the same host. Fault Tolerance uses anti-affinity rules.
o Fault Tolerance prerequisites:
o VMware HA must be enabled on the cluster. Host Monitoring should also be enabled.
o Host certificate checking must be enabled for all hosts.
o Each host must have a VMotion and a Fault Tolerance Logging NIC configured.
o Hosts must have the same version and patch level.
o Hosts must have processors from the FT-compatible processor group.
o Hosts must have Hardware Virtualization (HV) enabled in the BIOS.
o Virtual machines must be stored in virtual RDM or VM disk (VMDK) files that are thick provisioned with the Cluster Features option.
o Virtual machines must be running on one of the supported guest operating systems.
o Not supported for fault tolerant virtual machines.
o Snapshots.
o Storage VMotion
o DRS features
o SMP virtual machines
o Physical RDMs
o Paravirtualized guests
o NPIV
o NIC passthrough
o EPT/RVI
o You should have no more than four fault tolerant virtual machines (primaries or secondaries) on any single host.
o The recommendation is that you use a maximum of 16 virtual disks per fault tolerant virtual machine.
Appendix – Fault Tolerance Error Messages
vSphere Web Access Administrator’s Guide
o Supported Operating Systems:
o Windows 2003 SP1, XP Pro SP3, XP Home SP2, 2000 SP4
o Linux with standard libraries,640 802 braindumps but requiring GTK+ 2.
o Supported browsers:
o IE 6, 7 or later
o Firefox 2, 3.0 or later
o The console webAccess service is now vmware-webAccess
o The Alarms tab is available only when you use vSphere Web Access to connect to vCenter Server.
o You can view the assigned tasks for a virtual machine, but you cannot assign tasks using Web Access.
o New disk policy (not available option from vSphere Client)
o Optimize for safety – Saves all changes to the virtual disk before notifying the system.

Testking VCP-410

o Periodically (every two seconds by default), the system examines the loads of the various nodes and determines if it should rebalance the load
by moving a virtual machine from one node to another.
o Transparent page sharing has also been optimized for use on NUMA systems.
o The VMkernel.Boot.sharePerNode option controls whether memory pages can be shared (de-duplicated) only within a single NUMA node or
across multiple NUMA nodes. It is turned on by default.
o If you turn off the option, identical pages can be shared across different NUMA nodes. In memory-constrained environments, such as VMware
View this could be very beneficial.
o The systems that offer vcp 4 a NUMA platform include AMD CPUs or the IBM Enterprise X-Architecture.
o You must manually select the boxes for all processors in the NUMA node. CPU affinity is specified on a per-processor, not on a per-node, basis.
o Specify nodes to be used for future memory allocations only if you have also specified CPU affinity.
Appendix A - Performance Monitoring Utilities: resxtop and esxtop
o The esxtop utility reads its default configuration from .esxtop4rc.
o Do not edit the .esxtop4rc file. Instead, select the fields and the order in a running esxtop process, make changes, and save this file using
the W interactive command.
Appendix B – Advanced attributes
vSphere Availability Guide
o The first five hosts added to the cluster are designated as primary hosts, and all subsequent hosts are designated as secondary hosts. The
primary hosts maintain and replicate all cluster state and are used to initiate failover actions. If a primary host is removed from the cluster,
VMware HA promotes another host to primary status.
o One of the primary hosts is also designated as the active primary host and its responsibilities include:
o Deciding where to restart virtual machines.
o Keeping track of failed restart attempts.
o Determining when it is appropriate to keep trying to restart a virtual machine.
o If the active primary host fails, another primary host replaces it.
o If a host stops receiving heartbeats from all other hosts in the cluster for more than 12 seconds, it attempts to ping its isolation addresses. If
this also fails, the host declares itself as isolated from the network.
o Three types of admission control:
o Host
o Resource pool
o HA
o Only VMware HA admission control can be disabled.
o Slot size is a logical vmware vcp 4 representation of the memory and CPU resources that satisfy the requirements for any powered-on virtual machine in the
cluster.
o The maximum Configured Failover Capacity that you can set is four.
o If your cluster contains any virtual machines that have much larger reservations than the others, they will distort slot size calculation. To avoid
this, you can specify an upper bound for the CPU or memory component of the slot size by using the das.slotCpuInMHz or das.slotMemInMB
advanced attributes, respectively.
o You can configure VMware HA to perform admission control by reserving a specific percentage of cluster resources for recovery from host
failures.
o You can configure VMware HA to designate a specific host as the failover host.
o To ensure that spare capacity is available on the failover host, you are prevented from powering on virtual machines or using VMotion to
migrate virtual machines to the failover host.
o When choosing an admission control policy, you should consider a number of factors:
o Avoiding Resource Fragmentation - The Host Failures Cluster Tolerates policy avoids resource fragmentation by defining a slot as the
maximum virtual machine reservation. The Percentage of Cluster Resources policy does not address the problem of resource
fragmentation. With the Specify a Failover Host policy, resources are not fragmented because a single host is reserved for failover.
o Flexibility of Failover Resource Reservation - The Host Failures Cluster Tolerates policy allows you to set the failover level from one to four
hosts. The Percentage of Cluster Resources policy allows you to designate up to 50% of cluster resources for failover. The Specify a
Failover Host policy only allows 640 802 you to specify a single failover host.
o Heterogeneity of Cluster - In a heterogeneous cluster, the Host Failures Cluster Tolerates policy can be too conservative because it only
considers the largest virtual machine reservations when defining slot size and assumes the largest hosts fail when computing the Current
Failover Capacity. The other two admission control policies are not affected by cluster heterogeneity.

VMware VCP-410 Exam

QUESTION NO: 286
Which of the following options cannot be edited if vApp Options is disabled in the
Options tab for a Virtual Machine that is part of a vApp (Choose Two)?
A. vApp Resources
B. IP Allocation Policy
C. vApp Startup and Shutdown Options
D. OVF Environment Transport

Answer: B,D

QUESTION NO: 287
Which of the following two vcp-410 options cannot be edited if Appliance Options
are disabled (Choose Two)?
A. License Agreement
B. Resources
C. Properties
D. Startup and Shutdown

Answer: A,C

QUESTION NO: 288
Which vCenter Server role, by default, has performance privileges?
A. Virtual Machine Power User
B. Virtual Machine Administrator
C. Resource Pool vmware vcp 410 Administrator
D. Datacenter Administrator

Answer: B

QUESTION NO: 283
Which pre-defined vCenter Server role can assign permissions to users?
A. Datacenter Administrator
B. Virtual Machine Power User
C. Administrator
D. Resource Pool Administrator

Answer: C

QUESTION NO: 284
ESX Service Console user authentication (Choose Two)?
A. can use a central directory service for password checking only
B. requires local accounts
C. requires users to change their passwords every 6 months by default
D. controls vCenter authentication for vSphere Client users

Answer: A,B

QUESTION NO: 285
An administrator wants to vmware vcp 4 enable Guest Customization in vCenter Server for various
Windows and Linux virtual machines. Which of the following steps must be performed
on the vCenter Server and in the guest virtual machines (Choose Two)?
A. Microsoft Sysprep tools must be placed on the vCenter Server
B. Perl must be installed in the Linux guest OS
C. The Linux Open Source tools must be added to the vCenter Server
D. The Windows guest OS must be Windows NT4, 2000, 2003 or 2008

Answer: A,B

VCP-410 Real Exam Questions

o ESX/ESXi uses at least 50MB of system memory for the VMkernel. This is not configurable. It depends on the number and type of PCI devices.
An ESXi host uses additional system memory for management agents.
o The service console typically uses 272MB.
o Memory activity is monitored to estimate the working set sizes for a default period of 60 seconds.
o ESX/ESXi charges more for idle memory than for memory that is in use. This is done to help prevent virtual machines from hoarding idle
memory.
o Hosts can reclaim memory Passed VCP410 from virtual machines using:
o Memory balloon driver (vmmemctl) - collaborates with the server to reclaim pages that are considered least valuable by the guest
operating system. Closely matches the behavior of a native system under similar memory constraints. Causes the guest to use its own
native memory management algorithms. You must configure the guest operating system with sufficient swap space.
o Swap Files - hosts use swapping to forcibly reclaim memory from a virtual machine when the vmmemctl driver is not available or is not
responsive. You must reserve swap space for any unreserved virtual machine memory (the difference between the reservation and the
configured memory size) on per-virtual machine swap files.
o If you are overcommitting memory, to support the intra-guest swapping induced by ballooning, ensure that your guest operating systems also
have sufficient swap space. This guest-level swap space must be greater than or equal to the difference between the virtual machine’s
configured memory size and its Reservation.
o Many workloads present opportunities for sharing memory across virtual machines.
o To determine the effectiveness of memory sharing use resxtop or esxtop to observe the actual savings. The PSHARE field of the interactive
mode in the Memory page.
o You measure guest physical memory using the Memory Granted metric (for a virtual machine) or Memory Shared (for an ESX/ESXi host). To
measure machine memory, however, use Memory Consumed (for a virtual machine) or Memory Shared Common (for an ESX/ESXi host).
o The VMkernel maps guest physical memory to machine memory.
o Multiple regions of guest physical memory might be mapped to the same region of machine memory (in the case of memory sharing) or
specific regions of guest physical memory might not be mapped to machine memory (when the VMkernel swaps out or balloons guest physical
memory)
o Resource Pool Hierarchy can have Passed VCP 4 Parents, Children, and Siblings.
o Resource Pool Admission Control - Before you power on a virtual machine or create a resource pool, check the CPU Unreserved and Memory
Unreserved fields in the resource pool’s Resource Allocation tab to determine whether sufficient resources are available.
o A group power on will power on multiple virtual machines at the same time.
o VMotion does not support raw disks or migration of applications clustered using Microsoft Cluster Service (MSCS).
o Other VMware products or features, such as VMware vApp and VMware Fault Tolerance, might override the automation levels of virtual
machines in a DRS cluster.
o An affinity rule specifies that two or more virtual machines be placed on the same host. An anti-affinity DRS rule is limited to two virtual
machines,
o If two rules conflict, the older one will take precedence, and the newer rule is disabled.
o Disabled rules are ignored. DRS gives higher precedence to preventing violations of anti-affinity rules than violations of affinity rules.
o When a host machine is placed in standby mode, it is powered off.
o Hosts are placed in standby mode by the VMware DPM feature
o A cluster becomes overcommitted (yellow) when the cluster does not have the capacity to support all resources reserved by the child resource
pools. Typically this happens when cluster capacity is suddenly reduced.
o A cluster enabled for DRS becomes invalid (red) when the tree is no longer internally consistent, that is, resource constraints are not observed.
o VMware DPM can use one of three power management protocols
o IPMI - Intelligent Platform Management Interface
o iLO - Hewlett-Packard Integrated Lights-Out
o WOL - Wake-On-LAN
o If a host supports multiple protocols, they are used in the following order: IPMI, iLO, WOL.
o The VMotion NIC on each host must support WOL to use that protocol.
o The DRS threshold and the VMware DPM threshold are essentially independent. You can differentiate the aggressiveness of the migration and
host-power-state recommendations.
o Verify that DPM is functioning properly by viewing each host’s Last Time Exited Standby information.
o The most serious potential error you face when using VMware DPM is the failure of a host to exit standby mode when its capacity is needed
by the DRS cluster. Use the preconfigured Exit Standby Error alarm for this error.
o DRS Recommendations have 5 levels (1-5). Priority 1, the highest, indicates a mandatory move because of a host entering maintenance or
standby mode or DRS rule vcp 410 violations. Other priority ratings denote how much the recommendation would improve the cluster’s performance;
o Prior to ESX/ESXi 4.0, recommendations received a star rating (1 to 5 stars) instead of a priority level.
o Non-Uniform Memory Access (NUMA) systems are advanced server platforms with more than one system bus.
o Some virtual machines are not managed by the ESX/ESXi NUMA scheduler: if you manually set the processor affinity for a virtual machine, or
virtual machines that have more virtual processors than the number of physical processor cores available on a single hardware node.
o When a virtual machine is powered on, ESX/ESXi assigns it a home node. This is initially assigned to home nodes in a round robin fashion.

Testking VCP-410

QUESTION NO: 292
An administrator is configuring an ESX Host with 2 Fibre Channel HBAs. The
attached FC Storage Array has two active Storage Processor ports. No zoning is
configured. Using Round Robin multipathing, how many paths are used to send data to a
VMFS Datastore at any given time?
A. 4
B. 1
C. 2
D. 3

Answer: B

QUESTION NO: 293
An administrator is VCP-410 questions configuring vCenter Server to support e-mail notification. Which of
the following parameters must be configured in the vCenter Server settings (Choose
Two)?
A. Sender e-mail address
B. SMTP server information
C. SNMP address information
D. Receiver e-mail address

Answer: A,B

QUESTION NO: 294
During Guided Consolidation, how is disk space for the virtual machine
calculated?
A. The virtual machine disk is equal in size to the source disk
B. The virtual machine disk is sized to the amount of data contained on the source disk
C. The virtual machine disk is sized to 125% of the data contained on the source disk
D. Guided Consolidation prompts for the virtual machine disk size during conversion

Answer: C

QUESTION NO: 289
The default ESX service console firewall (Choose Two)?
A. is configured for high security
B. blocks all traffic unless VCP-410 dumps specifically allowed
C. is configured for medium security
D. allows all traffic unless specifically blocked

Answer: A,B

QUESTION NO: 290
Which of the following describe methods of adding Service Console networking to a
vNetwork Distributed Switch (Choose Three)?
A. A Service Console port can be cloned from an existing vNetwork Standard Switch
B. A Service Console Network Adapter can be associated with an existing port group on
a Network Distributed Switch
C. A Service Console Network Adapter can be created along with a Service Console port
group on the selected vNetwork Distributed Switch
D. A Service Console Network Adapter can be created and added to a Standalone Port
E. A Service Console port can be migrated from an existing vNetwork Standard Switch

Answer: B,D,E

QUESTION NO: 291
Which of the following are Passed VCP-410 valid severity levels for host updates in vCenter
Update Manager (Choose Three)?
A. Security
B. Important
C. General
D. Critical
E. Moderate

Answer: A,C,D

VCP-410 Test Questions

o Perform a rescan each time you make one of the following changes:
o Create new LUNs on a SAN.
o Change the path masking on a host.
o Reconnect a cable.
o Make a change to a host in a cluster.
o Change CHAP settings or add new discovery addresses.
o If you notice unsatisfactory performance for your software iSCSI LUNs, you can change their maximum queue depth by using the vicfgmodule
command.
o The iscsi_max_lun_queue VCP-410 exam parameter is used to set the maximum outstanding commands, or queue depth, for each LUN accessed through the
software iSCSI adapter. The default is 32, and the valid range is 1 to 255.
o Setting the queue depth higher than the default can decrease the total number of LUNs supported.
Appendix A - iSCSI SAN Configuration Checklist
o Set the following Advanced Settings for the ESX/ESXi host:
o Set Disk.UseLunReset to 1
o Set Disk.UseDeviceReset to 0
Appendix B - VMware vSphere Command-Line Interface
o The resxtop command provides a detailed look at ESX/ESXi resource use in real time.
o The vicfg-iscsi command allows you to configure software or hardware iSCSI on ESX/ESXi hosts, set up CHAP parameters, and set up
iSCSI networking.
o Use the vicfg-mpath command to view information about storage devices, paths, and multipathing plugins.
o Use the esxcli corestorage claimrule command to manage claim rules. Claim rules determine which multipathing module should
claim paths to a particular device and manage the device.
o The vmkping command allows you to verify the VMkernel networking configuration.
Appendix C - Managing Storage Paths and Multipathing Plugins (Same as Appendix B in the Fibre Channel SAN Configuration Guide)
Resource Management Guide
o The need for resource management arises from the over-commitment of resources.
o Resources include CPU, memory, power, storage, and network resources.
o The guide focuses primarily on CPU and memory. Power resource consumption can also be reduced with the Distributed Power Management
(DPM) feature.
o ESX/ESXi manages network bandwidth and disk resources on a per-host basis, using network traffic shaping and a proportional share
mechanism, respectively.
o Shares specify the relative priority or importance of a virtual machine (or resource pool).
o Shares are typically specified VCP-410 exam questions as High, Normal, or Low and these values specify share values with a 4:2:1 ratio. (or can set Custom value)
o A reservation specifies the guaranteed minimum allocation for a virtual machine.
o The reservation is expressed in concrete units (megahertz or megabytes).
o Reservation defaults to 0.
o Limit specifies an upper bound for CPU or memory resources that can be allocated to a virtual machine. It never gets more than this.
o A limit is expressed in concrete units (megahertz or megabytes).
o CPU and memory limit default is unlimited.
o Using limits can be beneficial if you want to manage user expectations, but might waste idle resources.
o Expandable Reservation defines whether reservations are considered during admission control.
o Overhead Reservation is the amount of the “Reserved Capacity” field that is being reserved for virtualization overhead.
o Worst Case Allocation is the amount of (CPU or memory) resource that is allocated to the virtual machine based on user-configured resource
allocation policies (for example, reservation, shares and limit), and with the assumption that all virtual machines in the cluster consume their
full amount of allocated resources.
o Admission Control - If enough unreserved CPU and memory are available, or if there is no reservation, the virtual machine is powered on.
Otherwise, an Insufficient Resources warning appears.
o ESX/ESXi cannot enable hyperthreading on a system with more than 32 physical cores, because ESX/ESXi has a logical limit of 64 CPUs.
o Hyperthreaded Core Sharing Modes:
o Any - can freely share cores with other virtual CPUs.
o None - each virtual CPU VCP-410 study guide should always get a whole core to itself, with the other logical CPU on that core being placed into the halted
state.
o Internal - cannot share cores with vCPUs from other virtual machines. Can share cores with the other virtual CPUs from the same virtual
machine. Only for SMP virtual machines.
o For the best performance, when you use manual affinity settings, include at least one additional physical CPU in the affinity setting to allow at
least one of the virtual machine's threads to be scheduled at the same time as its virtual CPUs.
o Dynamic Voltage and Frequency Scaling (DVFS) - You can configure your hosts to dynamically switch CPU frequencies based on workload
demands.

VMware VCP-410 Exam

QUESTION NO: 298
What are two functions of zoning in Fibre Channel Switches (Choose Two)?
A. Restrict connections on a storage array to ESX Hosts that utilize the array
B. Prevents non-ESX Hosts from possibly destroying VMFS data
C. Controls and isolates LUNs on a Fibre Channel Storage Array
D. Reduces the number of targets and LUNs presented by a Fibre Channel Storage Array

Answer: A,B

QUESTION NO: 299
An administrator is creating a database for a vCenter installation. Approximately how
much additional space is needed for every 50 virtual machines being managed, assuming
statistic collection is at VCP-410 dumps the default level?
A. 700MB
B. 1GB
C. 500MB
D. 100MB

Answer: A

QUESTION NO: 300
When configuring a FC-SAN with ESX 4, which of the following are valid
requirements and/or recommendations (Choose Two)?
A. Each LUN should contain only one VMFS datastore
B. Each LUN must present the same LUN ID number to all ESX/ESXi hosts
C. Virtual machine multipathing software should be used to perform I/O load balancing
to individual LUNs
D. RDMs should not be used to access raw disks from previous ESX 2.5 or 3.x Hosts

Answer: A,B

QUESTION NO: 295
The remote console performance for a virtual machine on an ESXi Host appears to be
degraded. Which of the following VCP-410 could be a possible cause of the problem (Choose
Two)?
A. The physical NIC assigned to the VMkernel port group has a speed or duplex
mismatch
B. The virtual NIC assigned to the virtual machine has a speed or duplex mismatch
C. The physical NIC assigned to the virtual machine port group containing the affected
virtual machine has a speed or duplex mismatch
D. The physical NIC assigned to the Service Console port group has a speed or duplex
mismatch

Answer: A,C

QUESTION NO: 296
The vSwitch or vSwitch port group policy setting that allows a virtual
machine to transmit packets that contain a MAC address other than the address defined
for the VM is?
A. Promiscuous Mode
B. Traffic Shaping
C. Forged Transmits
D. MAC Address Changes

Answer: C

QUESTION NO: 297
What is the maximum number of VCP-410 braindump systems guided consolidation can
simultaneously analyze?
A. 1000
B. 500
C. 250
D. 100

Answer: D

VCP-410 Dumps

o On ESXi, it is not possible to rescan a single storage adapter.
o You can modify the Disk.MaxLUN parameter to improve LUN discovery speed.
o You cannot discover LUNs with a LUN ID number that is greater than 255.
o You can disable the default sparse LUN support to decrease the time ESX/ESXi needs to scan for LUNs.
o The sparse LUN support enables the VMkernel to perform uninterrupted LUN scanning when a storage system presents LUNs with
nonsequential LUN numbering.
o NPIV enables a single FC HBA port to register several unique WWNs with the fabric, each of which can be assigned to an individual virtual
machine.
o The virtual machine’s configuration file (.vmx) is updated to include a WWN pair (consisting of a World Wide Port Name and a World Wide
Node Name).
o If NPIV is enabled, four WWN pairs (WWPN & WWNN) are specified for each virtual machine at creation time. All physical paths must be
zoned to the virtual machine.
o NPIV can only be used for VCP-410 exam questions virtual machines with RDM disks. Physical HBAs, must have access to all LUNs that are to be accessed by virtual
machines running on that host.
o By default, the host performs a periodic path evaluation every 5 minutes causing any unclaimed paths to be claimed by the appropriate MPP.
o Make sure read/write caching is enabled.
o Dynamic load balancing is not currently supported with ESX/ESXi.
o Path thrashing only occurs on active-passive arrays
Appendix A – Multipathing Checklist
Appendix B – Managing Storage Paths and Multipathing Plugins
o Claim rules indicate which multipathing plugin, the NMP (Native MP) or any third-party MPP, manages a given physical path.
o List claim rules esxcli corestorage claimrule list
o To list all multipathing modules: vicfg-mpath --server <server> --list-plugins
o List all VMware SATPs: esxcli nmp satp list
o List all storage devices: esxcli nmp device list
iSCSI SAN Configuration Guide
o There is no mention of requiring a Service Console connection for iSCSI anymore.
o Virtual SCSI controllers - BusLogic Parallel, LSI Logic Parallel, LSI Logic SAS, and VMware Paravirtual.
o iSCSI Name identifies a particular iSCSI element. The iSCSI name can use either IQN or EUI format.
o IQN (iSCSI qualified name) - can be up to 255 characters long and has the following format: iqn.yyyy-mm.naming-authority:unique_name
o EUI (extended unique identifier) - takes the form eui.<16 hex digits>
o iSCSI aliases - not unique, and are intended to be just a friendly name to associate with the node.
o You must enable your software iSCSI initiator so that ESX can use it to access iSCSI storage.
o Dynamic Discovery - Also VCP-410 study guide known as Send Targets discovery responds by supplying a list of available targets to the initiator. The names and IP
addresses of these targets appear on the Static Discovery tab. If you remove a static target added by dynamic discovery, the target might be
returned to the list the next time a rescan happens, the HBA is reset, or the host is rebooted.
o Static Discovery - The initiator does not have to perform any discovery.
o Dynamic discovery obtains a list of accessible targets from the iSCSI storage system, while static discovery can only try to access one particular
target by target name.
o You cannot change the IP address, DNS name, or port number of an existing Send Targets server. To make changes, delete the existing server
and add a new one.
o To protect the integrity of iSCSI headers and data, the iSCSI protocol defines error correction methods known as header digests and data
digests. Both parameters are disabled by default, but you can enable them.
o Check the end-to-end, noncryptographic data integrity beyond the integrity checks that other networking layers provide.
o Enabling header and data digests does require additional processing for both the initiator and the target. Intel Nehalem processors offload
the iSCSI digest calculations.
o Use the esxcli command to connect the VMkernel ports to the software iSCSI initiator.
o Jumbo Frames up to 9kB (9000 Bytes) are supported.
o You cannot change the IP address, DNS name, iSCSI target name, or port number of an existing target. To make changes, remove the existing
target and add a new one.
o iSCSI requires that all devices on the network implement Challenge Handshake Authentication Protocol (CHAP), which verifies the legitimacy
of initiators that access targets on the network. (EDIT - I don’t think its “required”)
o ESX/ESXi supports one-way CHAP for both hardware and software iSCSI, and mutual CHAP for software iSCSI only.
o For software iSCSI only, you can set one-way CHAP and mutual CHAP for each initiator or at the target level.
o Hardware iSCSI supports CHAP only VCP-410 questions at the initiator level.
o For software iSCSI, the CHAP name should not exceed 511 and the CHAP secret 255 alphanumeric characters.
o For hardware iSCSI, the CHAP name should not exceed 255 and the CHAP secret 100 alphanumeric characters.
o Boot from a SAN - ensure that the LUN is presented to the ESX system as LUN 0. The host can also boot from LUN 255.