Module 3 Lesson 2: Configuring ESX/ESXi - VMware vSphere 4.1 Study Flash Cards
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ESX and ESXi Installable and ESXi Embedded are preinstalled in the firmware of a supported vendor's hardware. True or False?
If True, How do Installable and Embedded differ?
If False, Why?
ESXi Embedded is preinstalled in the firmware but ESX and ESXi Installable must be installed on supported hardware.
Which version of ESX , ESX/ESXi Installable or ESXi Embedded, comes preinstalled and requires NO further configuration?
None. ESXi Embedded comes preinstalled in the firmware of the hardware but both require post installation configuration.
During the ESX/ESXi Installable installation procedure you must choose the local disk device for the software installation. True or False?
If False, Why?
False, For ESX/ESXi Installable installation you can choose the disk device on which to install the software.
On the ESXi Embedded and ESXi installable what is the direct console user interface (DCUI) and what is it used for?
The DCUI is a console similar to a computer's BIOS with a keyboard-only user interface and it is used to configure/customize certain system settings.
How can the direct console user interface (DCUI) be accessed from the physical ESXi host?
The DCUI can assesed by pressing F2 on the keyboard.
The DCUI can be assesed by pressing F12 on the keyboard. True or False?
If False, How can the DCUI be assesed?
False, The DCUI can assesed by pressing F2 on the keyboard. F12 is the "(F12) Shut Down/Restart" option on the main screen.
Name the 13 ESXi DCUI system customization options.
1. Configure Password 2. Configure Lockdown Mode 3.Confiure Management Network 4. Restart Management Network 5.Test Management Network 6. Disable Management Network 7. Restore Standard Switch 8. Configure Keyboard 9. View Support Information 10. View System Logs 11. Troubleshooting Options 12. Reset System Configuration 13. Remove Custom Extensions
What is the administrative user name for the ESXi host?
The administrative user name for the ESXi host is "root".
What is the ESXi default administrative password?
Null. No default administrative password is set.
How can you log in to the ESXi host with the vSphere Client without setting the root password?
Not possible. If you do not set the root password, you will be unable to log in to the ESXi host with the vSphere Client.
How can you set the ESXi host root password?
On the ESXi host's DCUI main screen, press F2 on the keyboard to access the "System Customization" screen and select the "Configure Password" option.
On the ESXi host what is the root password complexity requirement?
6 or more characters up to 64 that has a lease one uppercase character, one lowercase character and one digit.
What is the ESXi "lockdown mode" configuration option?
The "lockdown mode" configuration option (on ESXi hosts only) when enabled, prevents remote users from logging into the host using the "root" login name. If no other local accounts exist, users will only be able to access the host through the local console or an authorized centralized management application such as the vSphere Client through vCenter Server.
What must you do before logging out of the ESXi DCUI when the "lockdown mode" option has been enabled?
Ensure the root password has been set. Setting the root password will enable you to log in to the ESXi host with the vSphere Client or vCLI through the vCenter Server.
How many local user accounts exist on the ESXi system by default?
None. Local user accounts can be created only before enabling lockdown mode in a vSphere Client session DIRECTLY (not through/via a vCenter Server connection) connected to the ESXi system.
From the DCUI, you can change the host name, IP settings and DNS servers. Name at lease 3 other network settings that can be modified using the DCUI.
- 1. Network adapter used for the management network
- 2. VLAN settings
- 3. IPv6 configuration/settings
- 4. Custom DNS suffixes
The DCUI "Restart Management Network" System Customization screen option allows you to restart the management network without having to reboot the ESXi system. True or False?
What ESXi DCUI System Customization screen option allows you to view the host's license serial number?
The "View Support Information" option.
In the ESXi DCUI System Customization screen "Troubleshooting options", are the troubleshooting services enabled or disabled by default?
It is a good practice to keep the ESXi DCUI troubleshooting services enabled. True or False?
In the ESXi DCUI System Customization screen "Troubleshooting options", what are the two troubleshooting services options?
- 1. Local Tech Support Mode (TSM) - For troubleshooting locall
- 2. Remote Tech Support Mode Service (SSH) - For troubleshooting issues remotely, using an SSh client.
How can you reset the ESXi system configuration to the software default and remove custom extensions or packages that have been added to the system?
Log on to the ESXi DCUI as root, press F2 and select "Reset Sytem Configuration" or "Remove Custom Extensions" from the System Customization screen.
In most cases when logging directly in to an ESX/ESXi host using the vSphere Client, what user account will you use?
What tab would you click in the vSphere Client's right panel to view or configure an ESX/ESXi host's hardware or software settings?
The Configuration Tab.
Name the 9 links in the vSphere Client's ESX/ESXi host's "Configuration Tab" Hardware settings panel/list.
1. Health Status 2. Processors 3. Memory 4. Storage 5. Networking 6. Storage adapters 7. Network adapters 8. Advanced settings 9. Power Management
Name the 9 links in the vSphere Client's ESX/ESXi host's "Configuration Tab" Software settings panel/list.
1. Licensed Features 2. Time Configuration 3. DNS and Routing 4. Authentication Services 5. Virtual Machine Starup/Shutdown 6. Virtual Machine Swapfile Location 7. Security Profile 8. System Resource Allocation 9. Advanced Settings
What are the 4 colors of the vSphere Client status indicators and what does each color signify?
- Green - component is functioning normally.
- Yellow - degraded component performance.
- Red - component stopped operating or exceeded the highest threshold.
- Blank/Greyed out - health monitoring service cannot determine component status.
Name 5 ESX/ESXi Processor values/settings that can be viewed by clicking on the vSphere Client's "Configuration Tab" Hardware list's processor link.
- 1. Model
- 2. Processor Speed
- 3. Processor Sockets
- 4. Processor Cores per Socket
- 5. Logical Processors
Can the service console memory size be changed on an ESX host?
If Yes, when do the changes take effect?
Yes the service console memory size can be changed. 800 MB maximum.
The changes take effect on the next system reboot.
On a ESX host what is the maximum size of the service console RAM allocation?
What size is it a good practice to configure the ESX service console's swap partition?
During 60-day the evaluation period, some of the ESX/ESXi software features are only partially operational. True or False?
If false, why?
False. During the evaluation period, the Software is completely operational for 60 days.
After the 60-day ESX/ESXi evaluation period what will happen to the functionality of the virtual machines and the hosts in the vCenter Server system?
You cannot power on or reset virtual machines and all the hosts are disconnected from the vCenter Server system.
How many character long is the VMware 4.1 ESX/ESXi license serial number?
25 characters long.
Can an ESX/ESXi host be configured as an NTP CLIENT ?
What port does an ESX/ESXi host uses for NTP synchronization?
UDP port 123.
How can you view the ESX/ESXi host system logs in the vSphere Client?
By selecting View > Administration > System Logs in the vSphere Client.
What 2 log files do both ESX and ESXi host have and what entries do the log files contain?
- 1. hostd.log - log files
- 2. messages - log files
The log files contain entries made during the bootup sequence and while the system is up and running.
An ESX host has 3 additional log files an ESXi host does not. What are they and what do they track?
- 1. vmkernel - log file.
- 2. vmksummary.txt - log file
- 3. vmkwarning - log file
These log files track service console availability; VMkernel alerts, warnings, and messages; and ESX host availability (including uptime and downtime).
What is the difference between the vSphere Client system logs obtained/exported when connected directly to an ESX/ESXi host and when connected via the vCenter server?
ESX/ESXi directly connected = host system logs.
ESX/ESXi connected via vCenter Server = vCenter Sever system logs.
What does an ESX host have as part of its security profile that a ESXi host does not?
An ESX host includes a firewall as part of the service console.
How can ESX/ESXi hosts be managed from a remote command line?
By using the vCLI , VMware VSphere Mangament Assistant (vMA) or the VMware vSphere PowerCLI.
What Automation tool can be used for administering a vSphere environment?
The VMware vSphere PowerCLI.
How is authentication done when a vCLI commmand connects through the vCenter Server system?
Authentication is done using vCenter Server users and roles (User Access Control).
What 64-bit virtual appliance is built on Red Hat Linux and allows thrid-party agents to be installed and also communicate with the virtual infrastructure if the thrid-party agents use one of the vSphere SDKs.
The VMware vSphere Management Assistant (vMA).
What is the most important step you can take to secure the ESX/ESXi hosts?
Securing the root user account.
What is the best practices recommended method of logging in to ESX/ESXi Hosts?
The vSphere Client connected through the vCenter Server.
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