Practice Questions

If a secondary VM starts to significantly lag behind the primary... then what happens? tip: CPU

...then FT slows the primary by descheduling its VM CPU allocation on the Host When the secondary has caught up, the primary's CPU share is slowly increased!

By default all ports on a switch belong to VLAN. 10 100 1 2

1

Simple and lightweight layer 2 switching logic: Ethernet Frame enters the vSwitch If the destination is to an unknown MAC address 1. Drop the frame if it came from an external source 2. Switch the frame to the virtual port that owns that MAC address 3. Send the frame to a physical uplink if it came from an internal source

1. Drop the frame if it came from an external source 3. Send the frame to a physical uplink if it came from an internal source

What purposes do vmKernel ports service

1. Management 2. vMotion 3. Fault Tolerant logging 4. iSCSI storage traffic 5. NFS storage traffic

Match the term with the definition. Not all terms are used! 1. System developed by Sun Microsystems to allow File Sharing using standard TCP/IP infrastructure, Implemented on most Linux systems. 2.System developed by Microsoft to allow File Sharing between Windows computers. Reverse engineered and implemented on many Linux systems. 3.System to allow block disk access commands previously used for local storage to be implemented over TCP/IP 4. High speed optical disk access system designed to allow multiple devices to access storage SMB NFS FIBRE CHANNEL iSCI

1. NFS 2. SMB 3. iSCI 4.FIBRE CHANNEL

A datacenter is using vCenter Server (VCS) as a VM appliance running on one of the ESXi hosts in a cluster with HA enabled. The ESXi host running the VCS VM fails to a power off state. Which statement best describes what happens next? 1. The HA agent on a different ESXi host will detect VCS is no longer running and restart VCS appliance. 2. HA will fail on cluster appliance because VCS ill fail on the ESXi host 3. The VCS appliance will continue to run and can use vMotion to move itself to another ESXi host. 4. VCS cannot be installed as a VM appliance inside one of the servers it manages, it must be installed on seperate hardware.

1. The HA agent on a different ESXi host will detect VCS is no longer running and restart VCS appliance.

what is a User or Group, choose two. 1. User is for authentication (alongside a password), groups collect users together 2. Basic building block, can be from a local database, or even AD 3. Allowed action on an inventory object 4. Collection of privileges - either built in or custom 5. A role attached to an inventory object creates a permission

1. User is for authentication (alongside a password), groups collect users together 2. Basic building block, can be from a local database, or even AD

Pick the most correct answer from the 4 options below: 1. Virtual Machines can span physical machines 2. Virtual Machines cannot span physical machines 3. Physical machines determine to position of the virtual server on the network 4. Resource management needs to be managed when multiple physical machines used for virtualisation.

1. Virtual Machines can span physical machines

SAN storage files are viewed as.. 1. blocks 2. individual files

1. blocks

A virtual switch configuration supports three different ways to determine how VLANs are controlled. The main difference between the modes, being where the tags are applied: VST mode? 1. does this inside the VMkernel 2. does this at the guest operating system layer 3. does this on the external physical switch

1. does this inside the VMkernel Trunk.

Enabling FT can also reduce the performance of VMs by up to how much % 5% 10% 20% 35%

10% If the secondary VMs CPUs can't keep up with the primary, then this can reduce its performance even more.

How many phyiscal hosts can be provisioned with ESXi when using auto deploy? 10 50 100's 1000's

100's

What is the maximum of ports per vSwitch? 500 743 1016 dynamic

1016

A logging network, what is the Minimum requirement link speed? 100Mbps NIC 1Gb NIC 100 Gb NIC 1TB NIC

1Gb NIC

Minimum number of NICs for vMotion? (redundancy)

2

When does virtualization need to be enabled on the CPU. 1. 32Bit VMs 2. 64Bit VMs 3. 32 and 63Bit VMs 4 .None of the above

2. 64Bit VMs

What is an out of band network? 1. Interface from vcentre appliance which is used purely for user data not management data, 2. Interface from vcentre appliance which is used purely for management data, not for user data. 3. Interface from vcentre sever used for both user and management data

2. Interface from vcentre appliance which is used purely for management data, not for user data.

What is a characteristic of vCenter vRealize Orchestrator. Choose two. 1. Connects VMs to vCentre server 2. Provides workflow automation 3. Allows automation of tasks in the vCenter Server 4.Manages resources of VMs and ESXi hosts

2. Provides workflow automation 3. Allows automation of tasks in the vCenter Server

Simple and lightweight layer 2 switching logic: Ethernet Frame enters the vSwitch If the destination is to an known MAC address 1. Drop the frame if it came from an external source 2. Switch the frame to the virtual port that owns that MAC address

2. Switch the frame to the virtual port that owns that MAC address

A virtual switch configuration supports three different ways to determine how VLANs are controlled. The main difference between the modes, being where the tags are applied: VGT mode? 1. does this inside the VMkernel 2. does this at the guest operating system layer 3. does this on the external physical switch

2. does this at the guest operating system layer Trunk.

NAS storage files are viewed as.. 1. blocks 2. individual files

2. individual files

You have 50 VMs on an ESXi server 10 of which are web-servers, you want to make only 10 a web operate role what do you do? 1. Either assign web operator role at ESXi level 2.• Or assign web operator individually to each of the 10 web servers

2.• Or assign web operator individually to each of the 10 web servers if you assign at ESXi level it will target all VMs on host.

vSwitch Limitations, how many vSwitchs can each ESXi host have? 248 512 1024 2048

248

How many default roles does ESXi have?

3. No Access This can be used to prevent access to an object or objects in the inventory Such as a specific VM - despite having access to the ESXi host Read-Only You can see the objects within the vSphere Client inventory, but not interact with them Eg. You can see the VMs but not do anything with them Administrator Total authority, assigned using a user and group object

what is a Privilege 1. User is for authentication (alongside a password), groups collect users together 2. Basic building block, can be from a local database, or even AD 3. Allowed action on an inventory object 4. Collection of privileges - either built in or custom 5. A role attached to an inventory object creates a permission

3. Allowed action on an inventory object Eg. Powering on a VM; attaching a virtual CD to a VM etc.

What manages the VMs access to the physical hardware? 1. Command Line 2. vSwitch 3. VMKernel 4. CPU

3. VMKernel

A virtual switch configuration supports three different ways to determine how VLANs are controlled. The main difference between the modes, being where the tags are applied: EST mode? 1. does this inside the VMkernel 2. does this at the guest operating system layer 3. does this on the external physical switch

3. does this on the external physical switch Access mode.

What must a user account be assigned once it has been created? 1. permission 2. privilege 3. role

3. role

Select the true statement(s) about VMs initial configuration and machine setup: 1. Any number of cores can be supported for hardware host for ESXi 6 2. 32gb and 64gb CPUs need virtualisation enabled on 3.Minimum of 8 NIC is ideal for VMware host physical hardware 4. A maximum of 8 NICs can be used for each host ESXi host

3.Minimum of 8 NIC is ideal for VMware host physical hardware

What is the maximum amount of physical NICs that can be assigned to a vSwitch? 16 32 64 128

32

FT with VMware v6 allows up to how many CPUs in a VM? 2 4 10 25

4

what is a role? 1. User is for authentication (alongside a password), groups collect users together 2. Basic building block, can be from a local database, or even AD 3. Allowed action on an inventory object 4. Collection of privileges - either built in or custom 5. A role attached to an inventory object creates a permission

4. Collection of privileges - either built in or custom

Which of these come with VMware 1. Load Balancing 2. Load Balancing and Fault Tolerance 3. Fault Tolerance 4. Fault Tolerance + Resource Scheduling

4. Fault Tolerance + Resource Scheduling

An administrator wants to create 5 Windows Server VMs with all current updates, an anti-virus package, and an in-house software package installed in the quickest possible time. How is this done most efficiently? Note: "Customise" in the answers below means giving the server a unique name, IP address and windows license. 1. Partially install one Windows Server from CD. Abort the process before the first reboot. Clone this machine 4 times. Start all 5 machines and continue the Windows Installation on each VM, customising each VM. When the install is finished, add updates, AV and in-house software to each VM 2. Install one windows server VM from CD. Clone the VM 4 times. Run SYSPREP on the 4 cloned machines. Re-start and customise all VMs. Add updates, AV and in-house software to all VMs. 3. Install 5 windows server VMs from CD and customise each. Add updates, AV and in-house software to all VMs 4. Install one windows server VM from CD. Add updates, AV and in-house software. Run SYSPREP. Clone the VM 4 times. Start and customise all 5 machines.

4. Install one windows server VM from CD. Add updates, AV and in-house software. Run SYSPREP. Clone the VM 4 times. Start and customise all 5 machines.

There are 3 VMs running on a VMware ESXi host. VM1 is idle while VM2 and VM3 are consuming all the Physical CPU resources on the host. The following CPU Shares are allocated to the VMs: VM1 has 1000 CPU Shares VM2 has 2000 CPU Shares VM3 has 2000 CPU Shares Which statement about CPU usage best describes the result? 1. VM2 will be using all the CPU resources it needs, because it has a higher share number than VM1 2. The ESXi host will keep 1/5 of the CPU resources available and unused ready for VM1 when it needs them 3. Both VM2 and VM3 will use 2/5 of available of CPU 4. VM2 and VM2 will be using half the CPU resources each. 5. VM2 will be using 2/5 of the available CPU resources, while VM3 will be using 1/5

4. VM2 and VM2 will be using half the CPU resources each.

What is the maximum physical CPUs for hosts in ESXi 6? 1. 260 2. 480 3. 900 4. Unlimitied

480

Host logging provides a record of actions, events, errors and state information what size are the scratch partitions that get saved?

4gb created by installer

what is a permission?

5. A role attached to an inventory object creates a permission

Minimum number of NICs in total for redunancy

8

What is the vMotion port number

8000

Who many default roles are there in vCentre server? 20 5 9 12

9

What is Fault Tollerance

A secondary VM is running in sync with active and takes over if active goes down.

What is a virtual switch? and where does it live?

A software-based switch that sits in the VMkernel

What is a Content Addressable Memory (CAM) table?

A table on a switch of all known destination MAC addresses and associated port numbers

How many ports on a virtual switch 100 50 300 Dynamic

A virtual switch has a dynamically defined number of virtual ports that are available to the virtual machines and the host itself.

A vSphere Administrator has a multi-tier application deployed in a vApp. The administrator needs to rapidly deploy copies of the multi-tier application to various departmental infrastructures throughout the company. Which step should the administrator take using the vSphere Web Client to allow this? A. Export the vApp as an OVF Template B. Convert the vApp to a Template C. Clone the vApp to a OVF Template D. Add the vApp to the Catalog

A. Export the vApp as an OVF Template

Which component needs an SSL certificate? A. Update Manager B. Auto Deploy C. ESXi Dump Collector D. Network Syslog Collector

A. Update Manager

Which installation method is not available for a new deployment of ESXi 5.x? A. Update Manager installation B. Text-based interactive installation C. Scripted installation D. Auto Deploy installation

A. Update Manager installation

What can be applied on the router to provide a similar function as a firewall

Access control lists

Which port types removes VLAN tags when moving packets through the network.

Access port

What role would a user need to be to access the DCUI Direct console user interface

Admin

What user type can create custom roles with vCentre server

Admin vSphere Client: View / Administration / Roles

Select the two accounts that are necessary in ESXi: Root Backup User Admin

Admin Backup

An ESXi cluster using Automated Distributed Resource Scheduling is running two Microsoft Active Directory Domain Controllers (DCs), which provide fault-tolerant authentication for a Domain. How should DRS be configured for the best availability of the DCs?

Anti Affinty rule to keep DCs on different ESXi host

Where are CPU RAM Reservations, Limits, Shares applied?

Apply to all VMs in resource pool

In AAA, the acronym for who is allowed access is: Authorisation Authentication Accounting

Authentication

Where should the administrator edit the settings of DPM in the vSphere Web Client? A. DPM plug-in settings B. Cluster settings C. ESXi host power settings D. vCenter Service Status

B. Cluster settings

Which Single Sign-On deployment mode should an administrator use for two 5.x vCenter Servers configured with linked mode? A. Basic Single Sign-On with vCenter Server Heartbeat B. Multisite Single Sign-On C. Basic Single Sign-On D. Single Sign-On with Linked Mode

B. Multisite Single Sign-On

Where is the balloon driver installed from?

Balloon driver installed with VMware Tools

What is memory ballooning?

Balloon expands to "use" guest VM RAM ESXi Makes this available to other guest VMs

what is Storage vMotion

Change "Live" Storage Location VM Continues to run

What is NIC teaming

Connect multiple physical NICs to a single virtual switch Provides automatic load distribution Source MAC Hash Source and destination IP hash

What are the two options for fully automated? tip: Con and Agg

Conservative: Only migrate VMs if there is a big improvement to be made Aggressive: Migrate even if there is a small improvement

Which VMware Tools upgrade method minimizes the need for scheduled downtime? A. Use vCenter Server to select and upgrade virtual machines B. Use vSphere PowerCLI and create a script to upgrade the virtual machines C. Use Update Manager to perform an orchestrated upgrade of virtual machines D. Configure the virtual machines to check for and install updates at each reboot cycle

D. Configure the virtual machines to check for and install updates at each reboot cycle

Which of the following is a suitable method of load balancing for a group of web servers delivering identical static pages for a single company? DNS Round Robin Multiple DNS FQDNs Multiple ethernet cards on each router Enable hyperthreading

DNS Round Robin

What is vNetwork Distributed Switch (vDS) tip: similar the vcentre server

Delivers centralized management to vSwitches across multiple hosts

If vCentre server is not available what method would you connect?

Directly to individual ESXi host

What would be an examply of a good Anti Affinity Rule

Domain controllers being kept on different ESXi hosts so the system has redundancy.

What is resource utilization?

Dynamic distribution of resource

What is DRS Power Saving : DPM

ESXi OS manages CPU State, can reduce power consumption Can conserve power on a single ESXi Host Power "off" unneeded hosts As Demand increases Hosts are powered on DRS uses vMotion to redistribute VMs "Greener" IT

Select the type 1 hypervisor in which linux is needed as a service console, from the list below: ESXi vShphere 5.0 Xen ESXi v6 ESXi vSphere 4.5

ESXi vSphere 4.5

What are Elastic ports tip: like ballooning

Elastic means that the virtual switch can manage the quantity of virtual ports automatically - creating and deleting them as needed - without user intervention.

A bare metal hypervisor allows you to create low level drivers for network cards, in order to install multiple variants of networking capabilities into the Operating System installed. TRUE/FALSE

False

Only six physical machines can be consolidated into a single virtual machine hypervisor. This is due to the restrictions imposed on a hypervisor by the switching infrastructure. TRUE/FALSE

False

What are remote storage options, choose 3 SATA Fibre Channel NFS iSCSI SAS

Fibre Channel NFS iSCSI

Which is shared storage? choose 4 Fibre Channel SAS SATA iSCSI NFS SMB SCSI

Fibre Channel iSCSI NFS SMB

What can we use to control access to management interfaces.

Firewall

What is resource allocation

Fixed amount Use the resource allocation settings (shares, reservation, and limit) to determine the amount of CPU, memory, and storage resources provided for a virtual machine.

What is the setting for DRS moves VM to "best" host Manual setting Semi-Automated Fully Automated

Fully Automated

How are Local VLANs set ouy

Hosts are assigned to VLANs based on their location, such as a floor in a building Requires routing to share resources between VLANs

An administrator is running the following servers as VMs in an ESXi cluster: DNS DHCP Active Directory Web (HTTP and HTTPS) Each of the servers is licensed separately (no Volume License is available). Improved web performance is required, and the administrator decides to create two more Web Server virtual machines for load balancing. The Web Server gets its IP address from DHCP. The administrator copies the Web Server Virtual Disk to create two more identical instances of the Web Server. 1. Certs for HTTPS 2. Windows Licences 3. Computer Names 4. IP addresses 5. DNS Domain names

IP addresses

If a VM has memory but doesn't use it, it "costs" more (in shares) This is called? tip: IMT

Idle memory tax

What does HA do if ESXi host is down?

If a host is down, VMs are restarted on another host

With active directory integration can you manage Individual accounts.. Centrally Individually

Individually

What is vLockstep Interval in real time is affected by:

Input to Primary Bandwidth and Latency of logging link Performance of Secondary

What does a virtual switch connect? Tip, NICS and vNIC

It might connect one or more pNICs (physical) in the host to the vNICs in VMs, or maybe none at all.

The maximum amount of a resource that a guest is allowed to use Limits Reservations Shares

Limits

Are host logs local or central to ESXi hosts

Local to each ESXi host

VMware Fault Tolerance is implemented on 10 VMs in a VMware Cluster using 3 ESXi Physical Hosts with adequate CPU and RAM Installed. The ESXi Physical hosts are connected with a dedicated 1Gbps switch used only for the logging network. The VMs using Fault Tolerance run slowly compared to VMs without Fault Tolerance. What is the most likely reason or solution? Choose the best answer.

Logging network is congested 1GBS is not sufficent for 10 VMs . Secondary machine isnt sync and slowing down primary.

What do the two FT VMs share? MAC Address Routing Information IP Shared Storage CAM Tables

MAC IP Storage

There are two ways to assign VLANs, statically by port and dynamically by... 1. IP address 2 .MAC address or username

MAC address or username

What is MACOF

MACOF can flood a switch with many spurious MAC addresses This overloads the CAM table, causing the default switch setup to broadcast all frames to every port

What is Distributed Resource Scheduler

Manages Resources Automatically

What is the setting for Admin chooses host at VM StartuP in DRS Manual setting Semi-Automated Fully Automated

Manual setting

What is Transparent page sharing? Many instances of identical OS running

Many RAM pages are identical Keep only one copy! Less helpful with 64-bit Operating Systems - more page variation!

What is vMotion

Moves a running VM from one ESXi host to another Not a High Availability Feature!

Do you need a licence to run the Linux based vCenter Server Appliance?

No

Is the vpxuser access by humans

No No SSH access

Does the secondary VM perform write output?

No Only the Primary machine performs Writes / Output

Does a vSwitch affect MAC addresses for nodes outside the ESXi host

No local to own host

By default is SSH enabled?

No Default is disbaled

Is vCentre server needed to run HA

No vCenter Server is not needed to run HA

What are the Standalone ESXi only built in roles No Access Read Only Administrator Root Read and Write

No Access Read Only Administrator

What are the Standalone ESXi only built in roles, pick 3. No Access Read Only Administrator Root Read and Write

No Access Read Only Administrator

Can default roles be modified?

No, need to create custom roles

Could you use resource pools to do this job?

No, resource pools are intended to control resource allocation and consumption - not organise VMs

Which of the following VMware technologies allows for load balancing between two currently running Web Server VMs? VMware HA VMware FT VMware vMotion None of these are for load balancing

None of these are for load balancing

Do AD Domain admins get accerss to SSO?

Not anymore

What are the two back end database methods supported?

Oracle and Microsoft Server SQL

User, group or privilege is assigned to a...

Permission

What could you apply to the folder? Privileges Permissions Roles

Permissions

Select the correct basic components of the security model for ESXi / vCenter Server: Privilege Permission Profile Read-only

Privilege Permission

What would happen if the virtual network was set to reject.

Promiscuous mode MAC Address changes Forged transmits would all be applied

What is needed on the new ESXi host when a VM is moved?

RAM CPU Disk Network

The amount of a resource that is always available for a guest Limits Reservations Shares

Reservations

Resource Allocation Mechanisms

Reservations, limits Resource Pools

What is a VM resource pool?

Resource pools can be grouped into hierarchies and used to hierarchically partition available CPU and memory

What is assigned to users and groups?

Roles

What are sample roles? 1. Roles formed from templates of default roles and customized. 2. Roles with limited features 3. Testing Roles 4. Roles which are not able to be used in live environment.

Roles formed from templates of default roles and customized.

Anti-Affinity Rules are?

Rules that keep VMs apart on different ESXi hosts

Affinity Rules are?

Rules that keep VMs together on same ESXi host

Which are local storage? choose 3 Fibre Channel SAS SATA iSCSI NFS SMB SCSI

SCSI SATA SAS

What encryption does vpxuser use? MD-5 SSH SHA1

SHA1

What does VSS: Volume Shadow Storage do? choose 2 Save copies of modified blocks Backup ESXi hosts "Snapshot" of VM Store data in secure location

Save copies of modified blocks "Snapshot" of VM

What is the setting for DRS decides on start, leaves VM there in DRS Manual setting Semi-Automated Fully Automated

Semi-Automated

What is the best type of Storage Architecture used for ESXi Local Shared

Shared Fibre Channel, Fibre Channel over Ethernet, iSCSI and NFS based are all supported

Which of the following technologies is used for Shared Storage, and which for Local Storage? (Match the technology with the use) Fibre Channel iSCSI SAS SATA

Shared Fibre Channel iSCSI Local SAS SATA

The relative proportion of a resource that a guest is allocated. Shares establish priority when there is resource contention. Limits Reservations Shares

Shares

SAN stands for?

Storage Area Network

What is thick provisioning? 1. TP operates by allocating disk storage space in a flexible manner among multiple users, based on the minimum space required by each user at any given time. 2. TP is a type of storage allocation in which the amount of storage capacity on a disk is pre-allocated on physical storage at the time the disk is created.

TP is a type of storage allocation in which the amount of storage capacity on a disk is pre-allocated on physical storage at the time the disk is created.

What is thin provisioning? 1. TP operates by allocating disk storage space in a flexible manner among multiple users, based on the minimum space required by each user at any given time. 2. TP is a type of storage allocation in which the amount of storage capacity on a disk is pre-allocated on physical storage at the time the disk is created.

TP operates by allocating disk storage space in a flexible manner among multiple users, based on the minimum space required by each user at any given time.

What is vLockstep interval? tip: lag

The lag between the two VMs is known as the vLockstep interval!

what is Virtual Network Interface Card (vNIC)?

This is the virtual machine's interface to the network

what is Virtual Kernel Network Interface Card (vmkNIC)

This is vSphere hypervisor's interface to the network which is used for Mgmt, NFS, iSCSI, vMotion

Which port types keeps VLAN tags intact when moving packets through the network.

Trunk port

Storage DRS

Use storage VMotion to balance load on Datastore Clusters Placement based on Free Space and I/O Load

How are sensitive routers, switches and hosts notified which VLAN the packet belongs to? Packet header VLAN Tagging VLAN Marking

VLAN Tagging

What are vmKernel ports

VMkernel ports are special ports that connect the vSphere host's vmkernel to the vswitch.

What do you need to patch your ESXi servers automatically? vcentre server VMware Update Manager vCenter Orchestrator

VMware Update Manager

What Allows VMs to use multiple processors. tip: VSM

Virtual Symmetric Multiprocessing

What would be an examply of a good Affinity Rule

Web server Database server for retail

Would you ever want Hypervisor to swap RAM to disk? Hypervisor Swapping

When there is no alternative, Hypervisor can swap RAM to disk Thousands of times slower than RAM! (See next slide) Avoid it!

Can VMs be in the same VLAN regardless of their psychical location?

Yes

Can virtual machines acquire their resources, CPU, RAM, storage from different ESXi hosts?

Yes

Can you setup the virtual networks in a vSphere environment

Yes

Is it default to propagate child objects?

Yes

Will assigning permissions at ESXi standalone host level target all VMs within the host?

Yes

An ESXi server has 20GB RAM can you run 5VM's with 5GB each?

Yes Memory "overcommit"

Which End-to-END VLANs are VLAN members on different floors and switches?

Yes Troubleshooting can be problematic: many switches can carry traffic for a specific VLAN, broadcasts can move across many switches

Does vLockstep guarantee the states of both VMs are identical (active & secondary)

Yes vLockstep accomplishes this by having both VMs execute identical sequences of x86 instructions

Can you save pages to RAM instead of disk?

Yes, Memory compression Compress RAM pages, to keep more pages in RAM Compression/decompression is quicker than disk paging!

Could you place the 10 VM's into a folder?

Yes, that would collect them all together.

What is the built in use for single sign on? SSO [email protected] [email protected]

[email protected]

A vSwitch with no physical NIC attached to it creates a?

an internal, and isolated communication, only between VMs that exist on the same host (Private vSwitch)

Are private VLANs available on vSwitch? Yes No, you must enable this feature available on the Distributed vSwitch

available on the Distributed vSwitch

Virtual Local Area Networks what does a VLAN seperate?

broadcast domains

what does this command do? vicfg-user --server server.domain.com --username root --entity group --group GroupName --operation add

creates group

what does this command do? vicfg-user --server server.domain.com --username root --entity user --login LoginName --operation add

creates user account

What does VM Monitoring (with VMware Tools installed) do?

enables a restart after a BSOD (Blue Screen of Death)

true or false Shares always apply

false Shares only have an effect when there is contention

True or false ESXi ran both the virtualization kernel (the VMkernel) along with a Console Operating System (COS).

false VMware shelved the classic ESX architecture and now only offers the slim, VMkernel-only version of ESXi

What is Hyper-Threading

is a technology used by some Intel microprocessor s that allows a single microprocessor to act like two separate processors to the operating system and the application program s that use it. It is a feature of Intel's IA-32 processor architecture.

What happens if a frame it trying to reach a MAC address on a nother VLAN

layer 3 switching is required and the frame will be sent to the physical uplink

what is vMA? 1. virtual maintenance 2. linux based management console appliance 3. windows based management console appliance 4. virtual mapping

linux based management console appliance

If you boot from a SAN - or remote disk, the log is saved in ESXi memory what happens when it is restarted. nothing keeps logs loses logs

loses logs

How can you solve the problem of losing logs if booting from SAN or remote disk? 1. setup central storage 2. enable host logs to be saved locally when booting from SAN 3. syslog server

syslog server

What happens to a frame when the switch searches the CAM table and Match found, and on the same port the frame arrived on

the frame is dropped.

What happens to a frame when the switch searches the CAM table and "no match" it found

the switch floods the frame out of all the other ports.

What happens to a frame when the switch searches the CAM table and Match found, and on a port other than the port the frame arrived on

the switch forwards the frame out of the corresponding port.

what does the command "chmod644/etc/vmware/firewall/service.xml " do? to backup the config file to display the current firewall rules to allow editing of the file

to allow editing of the file

what does the command "cp/etc/vmware/firewall/service.xml/etc/vmware/firewall/service.xml.bak" do? to allow editing of the file to display the current firewall rules to backup the config file

to backup the config file

what does " chmod 444 /etc/vmware/firewall/service.xml " do? to change permissions back to original to update the firewall configuration

to change permissions back to original

what does the command "esxcli network firewall ruleset list" do... to backup the config file to display the current firewall rules to allow editing of the file

to display the current firewall rules

what does the command "esxcli network firewall refresh" do? to change permissions back to original to update the firewall configuration

to update the firewall configuration

True or false If FT is widely used more bandwidth will be needed between the Primary and Secondary

true

True or false A vSwitch can only perform layer 2 switching.

true

true or false But default security policy prevents promiscuous mode to capture traffic

true

true or false Reservations and Limits always apply

true

true or false A virtual machine always accesses the network through a port group.

true Virtual machine port group: Access to VM networks (either internal or external VMs): Each virtual machine port group has its own network configuration - assigned a different VLAN.

What provides a centralized management platform for ESXi hosts and virtual machines?

vCentre Server

What technolgy does FT use? vMotion vCentre Orchestra vLockstep

vLockstep

Do we have any way of managing Utilization?

vRealize Operations Manager

How can you add more users with root privileges? Choose two vSphere client Directly on ESXi host Command Line OVF file

vSphere client Command Line

What is the name of the account that vcentre server uses to communicate with the ESXi hosts? Admin Root Vpxuser

vpxuser vCenter Server manages ESXi hosts, by creating "tasks"