Enterprise Virtualization Notes
What is the maximum number of concurrent vSphere vMotion migrations for a single VMFS datastore? Limited only by available bandwidth. 4 128 8
128
What is the highest hardware version level that is supported by ESXi 6.5? 13 12 6.5 10
13
Using the embedded database limits you to no more than ___ hosts and ___ registered virtual machines. 2,000; 2,500 2,000; 35,000 2,000; 200,000 2,000; 12,500
2,000; 35,000
A vSphere HA ESXi cluster can contain ___ hosts. 1-32 2-64 1-64 2-32
2-64
You can configure a virtual machine with up to ___ virtual CPUs. 2 times the number of physical cores of the host 4 times the number of physical cores of the host 256 128
256
ESXi supports up to _____ Gbps fibre channel. 64 128 256 32
32
The maximum number of email recipients for SNMP traps is ___. 1 8 2 4
4
A vSphere evaluation license is valid for ____. 60 days 30 days 10 days 90 days
60 days
What is the maximum size of a VMFS datastore volume? 64 TB 256 TB 64 GB 32 GB
64 TB
VLAN tagging is defined in which IEEE specification? 802.1Q 802.3 802.3ad 802.11
802.1Q
vCenter Server communicates directly with ESXi hosts using which port(s)? 443 80, 9443 443, 9443 902
902
What is a vApp?
A container for one or more VMs
When vSphere HA is enabled, what happens when the master host fails? The backup master host takes over as the new master. A new master host election takes place. vSphere HA activity is suspended until it is reconfigured. Nothing. vSphere HA operates independently of the physical hosts it monitors.
A new master host election takes place.
How is a virtual appliance different from a virtual machine? A virtual appliance has the guest operating system and other software preinstalled. A virtual appliance has the guest operating system preinstalled. A virtual appliance is a configurable option in the New Virtual Machine Wizard. Virtual appliance and virtual machine are synonyms.
A virtual appliance has the guest operating system and other software preinstalled.
A template is an image that typically includes: A guest operating system A set of applications A preconfigured VM All of these
All of these
Which capability(ies) is/are provided by vSphere vMotion? Improvement of overall hardware use. Allowing VMs to remain powered on while accommodating scheduled hardware downtime. Balancing VMs accross hosts. All of these.
All of these
Which of these is a default vCenter Server statistics collection interval? 1 day 1 month 1 year All of these
All of these
Which of these is a default vCenter Server statistics collection interval? 1 day 1 month 1 year All of these
All of these
The benefit(s) of using NTP to synchronize time on ESXi hosts is(are): Performance data can be interpreted correctly Audit logs will have accurate time stamps Virtual machines can synchronize their clocks with the ESXi host All of these are benefits
All of these are benefits
Which of the following is a benefit of using VLANs? Logical networks can be created that are not constrained by the physical topology. Performance is increased by limiting broadcast traffic. Cost savings by reshaping the network without deploying physical equipment. All of these are benefits
All of these are benefits
Which of the following is a benefit of using shared storage? Disaster recovery High Availability Migrating VMs between hosts All of these are benefits
All of these are benefits
Which of the following is a benefit of using vSphere HA? Protection against ESXi host failure Protection against application failure Protection against VM network isolation All of these are benefits
All of these are benefits
Which of the following is a characteristic of a vSphere HA heartbeat? They are used to determine whether a master or slave host has failed They are sent between a master host and 1 or more slave hosts They are sent over a heartbeat network All of these are characteristics
All of these are characteristics
Which component(s) of a server can be managed by an ESXi hypervisor? CPU Memory Network Adapters All of these components.
All of these components.
Installing VMware tools in a VM adds which of these features? Improved graphics performance The ability to shutdown the VM The ability to copy and paste between the virtual machine and the host desktop. All of these features.
All of these features.
What issue(s) with traditional storage do virtual volumes address? LUN-centric storage management overhead is excessive LUN-centric storage provisioning is too costly LUN-centric performance is too unpredictable All of these issues are addressed
All of these issues are addressed
Following best practices, what is the first step of performance-tuning?
Assess performance with performance monitoring tools
Following best practices, what is the first step of performance-tuning? Identify limiting resources Assess performance with performance monitoring tools Record a benchmark Allocate/deallocate resources
Assess performance with performance monitoring tools
Which of the following is NOT configurable in the DCUI? DNS address Keyboard BIOS Password
BIOS
This network failure detection method sends a 62-byte packet on each physical NIC every second. Beaconing Monitoring Heartbeat Keepalive
Beaconing
A distributed switch consists of these two planes: Host and I/O Control and I/O Host and Management Host and Control
Control and I/O
A distributed switch is created at which level? vCenter instance Virtual Machine Host Datacenter
Datacenter
___ is the Statistics Type that describes the difference between the current interval and the previous one. Rate Delta Change Absolute
Delta
Which virtual machine components can be preserved by a snapshot?
Disk, settings, and memory states
Which of the following is NOT a benefit of choosing virtual machines over physical machines? Downtime from hardware failures. Insulation from other virtual machines. Isolation from other virtual machines. Consolidation of servers.
Downtime from hardware failures.
What is the default network adapter for a Windows Server 2012 VM? E1000 VMXNET3 E1000E Vlance
E1000E
When hyperthreading is enabled, ___. ESXi can execute two threads simultaneously on each processor core. ESXi can execute two threads simultaneously on each processor. the maximum vCPU allotment for a VM is increased by 1. the maximum vCPU allotment for a VM is doubled.
ESXi can execute two threads simultaneously on each processor core.
Which statement is not true of NFS Kerberos authentication? Each ESXi host must have a unique Active Directory username. The clock time on all hosts must be synchronized. Kerberos must be configured on ESXi hosts before creating the NFS datastore. All of the statements are true.
Each ESXi host must have a unique Active Directory username.
Which storage protocols support vSphere vMotion, HA, and DRS? iSCSI, NFS, DAS FCoE, iSCSI, NFS NFS, DAS, Virtual Volumes FCoE, iSCSI, DAS
FCoE, iSCSI, NFS
A single vCenter Server instance can have at most 2 datacenter objects. True False
False
NFSv3 and NFSv4.1 both support multipathing and Kerberos authentication. True False
False
Templates are static objects that cannot be updated or changed. True False
False
VMFS datastores are useful because they can expand or shrink as necessary. True False
False
Which security policy causes a virtual switch to inspect outbound traffic for altered MAC addresses? Promiscuous mode MAC address changes Forged transmits None of these
Forged transmits
Which of these features is only available on a distributed switch? Inbound traffic shaping Outbound traffic shaping NIC teaming IPv6 support
Inbound traffic shaping
What type of guest operating system does the vCenter Appliance use? Linux Windows XP ESXi Windows Server 2012
Linux
Which is true about Virtual Volumes? Lower storage costs Slightly increased management overhead Does not scale as well as traditional storage methods Slightly increased latency when accessing data
Lower storage costs
Which statement best describes a private cloud? The use of hardware and software to deliver a service over a network. Resource pools dedicated to a single company or enterprise. Resource pools managed by an enterprise and a third party for use by only that enterprise. Resource pools run by a third party for use by a single company or enterprise.
Resource pools dedicated to a single company or enterprise.
All of the following are steps in the New Virtual Machine Wizard except ____. Set IPv4 addressing Select a compute resource Customize hardware Select compatibility
Set IPv4 addressing
The two types of virtual switches supported in a VMware virtual environment are: Host and Datacenter Standard and Advanced Host and Distributed Standard and Distributed
Standard and Distributed
What must you do before changing network settings on an ESXi host being monitored by vSphere HA? Suspend the Host Monitoring feature and place the host in maintenance mode. Suspend the Host Monitoring feature. Place the host in maintenance mode. Nothing. vSphere HA is sophisticated enough to tell the difference between network changes and host failures.
Suspend the Host Monitoring feature and place the host in maintenance mode.
Which of the following must be specified when creating an RDM Disk? Target LUN Destination LUN Destination host All of these
Target LUN
What is the most critical component of the vCenter Server? The database The Web Client The single sign-on service All of these components
The database
How is the vSphere HA master host determined? The host that can access the most datastores is elected as the master host. The host running vCenter Server is elected as the master host. The host with the most VMkernel ports is elected as the master host. The host with the most VMs is elected as the master host.
The host that can access the most datastores is elected as the master host.
What information must you specifiy when adding a host to the vCenter Server Inventory? The username and password, the FQDN or IP address, the subnet mask, and the Lockdown mode setting The username and password The username and password, and the FQDN or IP address The username and password, the FQDN or IP address, and the Lockdown mode setting
The username and password, the FQDN or IP address, and the Lockdown mode setting
Which provisioning method has the highest chance of creating contiguous file blocks? Thick provisioning Lazy-zeroed Thick provisioning Eager-zeroed Thin provisioning VMware Optimized provisioning
Thick provisioning Eager-zeroed
You want to create a VM that uses only the disk space it needs initially, but can easily expand later. Which is the best provisioning method to achieve this? Thin provisioning VMware Optimized provisioning Thick provisioning Lazy-zeroed provisioning
Thin provisioning
All hosts to be managed by a vCenter Server Appliance must have their clocks synchronized before the appliance is installed. True False
True
Traffic shaping is used to limit the amount of traffic to a virtual machine. True False
True
What is the name of the default virtual machine port group created by ESXi? Default Network VM Network Portgroup-1 vsswitch-1
VM Network
What is the name of the file system type that is optimized for virtual machines? VMFS NTFS NFS FAT32
VMFS
Which network adapter is only available with VMware tools? Vlance E1000E E1000 VMXNET3
VMXNET3
You have just created a virtual machine called VM_1. Which of the following files was NOT created by default? VM_1-delta.vmdk VM_1.log VM_1.vmdk VM_1.vmx
VM_1.log
The vCenter Server Platform Services Controller services include:
VMware vCenter Single Sign-On, VMware License Server, Lookup Service, VMware Certificate Authority, Certificate Store, VMware Directory Services
Which of the following is the preferred way to interact with a vCenter instance? Web Client SSH session Remote Desktop Console connection
Web Client
What must you install to enable virtual machine console access via the vSphere Web Client? vSphere Client VMware Tools Windows Authentication Plug-In Nothing. Connect to the vCenter instance on port 5480
Windows Authentication Plug-In
The default setting for vSphere HA VM Monitoring is ___. VM Monitoring only enabled VM and Application Monitoring disabled
disabled
The process of converting a thin provisioned disk to a thick provisioned one is called ___. expanding ballooning maximizing inflating
inflating
Which of the following determines the maximum number of virtual CPUs that can be assigned to a single VM? number of logical CPUs on the host The physical server manufacturer The number of other virtual machines on the host All of the above
number of logical CPUs on the host
When the total configured memory sizes for virtual machines on a host is more than the amount of physical memory, the host is said to be ___. oversubscribed overcommitted improperly configured overloaded
overcommitted
A ___ is the amount of CPU or memory that must be available to a VM, and ___ is the maximum that cannot be exceeded. reservation, limit limit, reservation share, reservation share, limit
reservation, limit
A ___ allows an administrator to allocate resources to logical groups of virtual machines. requisition scheduler resource pool requisition pool resource scheduler
resource pool
The administrative user name for an ESXi host is ____. admin root administrator master
root
The topmost resource pool of the resource pool hierarchy is the ___. root pool top pool host pool base pool
root pool
ESXi hosts support two iSCSI target discovery methods, ___ and ___. manual, dynamic static, dynamic default, dynamic default, manual
static, dynamic
A ___ library is a content library that syncs with another content library. synchronized subscribed local published
subscribed
___ enables virtual machines to restart in the event of a host failure. Site Recovery Manager vSphere Replication vSphere vMotion vSphere HA
vSphere HA
___ is used to implement high availability for a vCenter Server. vSphere vMotion vSphere HA Site Recovery Manager vSphere Replication
vSphere HA
___ enables virtual machines to be migrated between hosts during maintenance or a planned outage. vSphere vMotion Site Recovery Manager vSphere HA vSphere Replication
vSphere vMotion
___ migration is migrating a powered on virtual machine to a new host. Shared-nothing vSphere vMotion Cold vSphere vMotion vSphere Storage vMotion
vSphere vMotion
In a virtual environment, where are applications run? the Internet bare-metal servers the Cloud virtual machines
virtual machines
Virtual switches are similar to physical switches in all these ways, except: virtual switches support VLANs. virtual switches cannot connect to other virtual switches. each virtual switch has its own forwarding table. virtual switches forward frames.
virtual switches cannot connect to other virtual switches.
