Virtual Machines Quiz

1. On a particular server, within each virtual machine:

You can run any version of Windows without regard for the version(s) running in the other virtual machines.

The versions of Windows must be no more than one release apart.

The versions of Windows must be exactly the same.

None of the options is correct.

Within each virtual machine on a particular server, you have the freedom to run any version of Windows without considering the versions running in the other virtual machines. This means that each virtual machine can have a different version of Windows installed, regardless of the versions running in the other virtual machines. There is no requirement for the versions to be the same or to be within one release apart.

Explanation

Within each virtual machine on a particular server, you have the freedom to run any version of Windows without considering the versions running in the other virtual machines. This means that each virtual machine can have a different version of Windows installed, regardless of the versions running in the other virtual machines. There is no requirement for the versions to be the same or to be within one release apart.

2. It is generally desirable to provide some level of redundancy, permitting the entire contents of the server to be quickly moved to a standby server if the main server fails.

True

False

Providing redundancy allows for a backup server to quickly take over in case the main server fails. This ensures that there is minimal downtime and disruption to the system or service being provided. By having a standby server with the same contents as the main server, data and functionality can be seamlessly transferred, maintaining continuity and preventing loss of information or service interruptions. Therefore, it is generally desirable to have this level of redundancy in place.

Explanation

Providing redundancy allows for a backup server to quickly take over in case the main server fails. This ensures that there is minimal downtime and disruption to the system or service being provided. By having a standby server with the same contents as the main server, data and functionality can be seamlessly transferred, maintaining continuity and preventing loss of information or service interruptions. Therefore, it is generally desirable to have this level of redundancy in place.

3. A completely new version of Windows may require that you check for compatibility with your server virtualization software before you install it.

True

False

When a completely new version of Windows is released, it is important to check for compatibility with server virtualization software before installing it. This is because server virtualization software allows multiple operating systems to run on a single physical server, and any incompatibility between the new version of Windows and the virtualization software could lead to issues or errors during installation or operation. Therefore, it is crucial to ensure compatibility to avoid any potential problems.

Explanation

When a completely new version of Windows is released, it is important to check for compatibility with server virtualization software before installing it. This is because server virtualization software allows multiple operating systems to run on a single physical server, and any incompatibility between the new version of Windows and the virtualization software could lead to issues or errors during installation or operation. Therefore, it is crucial to ensure compatibility to avoid any potential problems.

4. On a particular server:

You can reboot a virtual machine without it having any effect on the other virtual machines.

If you reboot one virtual machine, all the other virtual machines reboot at the same time.

None of the options is correct.

When rebooting a virtual machine on a particular server, it does not affect the other virtual machines. This means that the rebooting process of one virtual machine does not cause the other virtual machines to reboot simultaneously. Additionally, the explanation states that there is no need to reboot the physical server before rebooting a specific virtual machine, as the individual virtual machines automatically reboot once the physical machine reboot is completed.

Explanation

When rebooting a virtual machine on a particular server, it does not affect the other virtual machines. This means that the rebooting process of one virtual machine does not cause the other virtual machines to reboot simultaneously. Additionally, the explanation states that there is no need to reboot the physical server before rebooting a specific virtual machine, as the individual virtual machines automatically reboot once the physical machine reboot is completed.

5. When it comes to avoiding major outages, the use of server virtualization:

Reduces the frequency of hardware-related service outages.

Has no material impact.

Requires that levels of redundancy be increased to avoid an increase in outages affecting multiple applications or services.

None of the options is correct.

Server virtualization involves running multiple virtual servers on a single physical server. This allows for better utilization of resources and increased flexibility. However, it also introduces a single point of failure, as if the physical server fails, all the virtual servers running on it will be affected. To avoid this, levels of redundancy need to be increased, such as having backup physical servers or implementing failover mechanisms. This ensures that in case of a hardware-related service outage, the impact is minimized and multiple applications or services are not affected.

Explanation

Server virtualization involves running multiple virtual servers on a single physical server. This allows for better utilization of resources and increased flexibility. However, it also introduces a single point of failure, as if the physical server fails, all the virtual servers running on it will be affected. To avoid this, levels of redundancy need to be increased, such as having backup physical servers or implementing failover mechanisms. This ensures that in case of a hardware-related service outage, the impact is minimized and multiple applications or services are not affected.

6. Compared with a traditional server data center, a data center that makes extensive use of server virtualization requires:

Approximately 25% fewer staffers to support the servers and operating systems.

Roughly the same number of staffers to support the servers and operating systems.

Approximately 25% more staffers to support the servers and operating systems.

None of the options is correct.

A data center that makes extensive use of server virtualization allows for the consolidation of multiple virtual servers onto a single physical server. This means that the number of physical servers is reduced, but the number of virtual servers remains the same. Therefore, the same number of staffers is required to support the servers and operating systems, as the workload and maintenance tasks remain similar.

Explanation

A data center that makes extensive use of server virtualization allows for the consolidation of multiple virtual servers onto a single physical server. This means that the number of physical servers is reduced, but the number of virtual servers remains the same. Therefore, the same number of staffers is required to support the servers and operating systems, as the workload and maintenance tasks remain similar.

7. The smallest part of the work done in a data center tends to be driven by the number of servers.

True

False

The given statement is false. The smallest part of the work done in a data center is not driven by the number of servers. There are various factors that contribute to the work done in a data center, such as the complexity of the tasks, the efficiency of the infrastructure, the workload distribution, and the optimization of resources. The number of servers is just one aspect among many that can influence the work done in a data center.

Explanation

The given statement is false. The smallest part of the work done in a data center is not driven by the number of servers. There are various factors that contribute to the work done in a data center, such as the complexity of the tasks, the efficiency of the infrastructure, the workload distribution, and the optimization of resources. The number of servers is just one aspect among many that can influence the work done in a data center.

8. The introduction of server virtualization in a data center:

Will make the introduction of a storage-area network (SAN) absolutely necessary.

Will not materially change storage requirements.

Will make the climax of a SAN desirable.

Will make the introduction of a SAN desirable.

The introduction of server virtualization in a data center will make the introduction of a storage-area network (SAN) desirable. Server virtualization allows multiple virtual servers to run on a single physical server, which increases efficiency and flexibility. However, it also increases the demand for storage as each virtual server requires its own storage space. A SAN provides a centralized and scalable storage solution that can efficiently handle the increased storage requirements of virtualized servers. Therefore, the introduction of server virtualization in a data center makes the introduction of a SAN desirable.

Explanation

The introduction of server virtualization in a data center will make the introduction of a storage-area network (SAN) desirable. Server virtualization allows multiple virtual servers to run on a single physical server, which increases efficiency and flexibility. However, it also increases the demand for storage as each virtual server requires its own storage space. A SAN provides a centralized and scalable storage solution that can efficiently handle the increased storage requirements of virtualized servers. Therefore, the introduction of server virtualization in a data center makes the introduction of a SAN desirable.

9. In a virtualized server environment, compared with a traditional server environment:

It is easier to keep track of software licensing.

Tracking software licensing is neither materially easier nor harder.

It is significantly harder to keep track of software licensing.

None of the options is correct.

In a virtualized server environment, it is significantly harder to keep track of software licensing compared to a traditional server environment. This is because virtualization allows for the creation of multiple virtual machines on a single physical server, leading to a higher number of software installations and licenses to manage. Additionally, virtual machines can be easily created, cloned, or deleted, which makes it more challenging to accurately track and manage software licenses across the virtualized environment.

Explanation

In a virtualized server environment, it is significantly harder to keep track of software licensing compared to a traditional server environment. This is because virtualization allows for the creation of multiple virtual machines on a single physical server, leading to a higher number of software installations and licenses to manage. Additionally, virtual machines can be easily created, cloned, or deleted, which makes it more challenging to accurately track and manage software licenses across the virtualized environment.

10. When deciding on the placement of development, testing/QA and production instances of applications and databases:

It really doesn't matter where you place the different types of instances.

None of the options is correct.

It is recommended to dedicate physical machines for each type of instance (development, testing/QA, and production) to enhance the security of the production environment. By separating the instances onto different servers, any vulnerabilities or issues in the development or testing environments will not affect the production environment. This approach allows for better control and isolation of the production environment, ensuring its stability and security.

Explanation

It is recommended to dedicate physical machines for each type of instance (development, testing/QA, and production) to enhance the security of the production environment. By separating the instances onto different servers, any vulnerabilities or issues in the development or testing environments will not affect the production environment. This approach allows for better control and isolation of the production environment, ensuring its stability and security.