Free VMware VDCD510 Exam Questions (page: 3)

Storage DRS can be enabled and can balance I/O levels based on

  1. real-time stats
  2. historical stats

Answer(s): B

Explanation:

Storage DRS can balance I/O by using storage vMotion. This would be based on historical values for a period of time. Storage DRS would make decisions based on these figures. If the system were using realtime stats, the machines could potentially migrate a lot more. This could have an effect on the latency figures for some systems. The larger historical sampling in storage DRS allows the system to make a decision with limited risk of impacting I/O--unlike moving a virtual machine over and over again. Chapter 4, Storage Design - The Logical & Physical Approaches



The vCenter database is powered off ungracefully, along with a three cluster nodes in a separate cluster. Will the failed existing ESXi host nodes restart correctly using Auto Deploy?

  1. Yes
  2. No

Answer(s): A

Explanation:

Auto Deploy enables an untrained IT professional to increase capacity while ensuring quality and consistency within a cluster. However, there is a dependency on the vCenter server and Auto Deploy server roles at different times. In this case, the ESXi hosts have already booted successfully. This means that all subsequent reboots will be controlled using configuration from the Auto Deploy server, not vCenter. If the vCenter database is impacted, the ESXi hosts will automatically restore. Even in the event of no vCenter availability, hosts will use the last-known copy of a distributed switch or the configured vSphere switch.
Chapter X, Putting it all together



A best practice can change over time.

  1. True
  2. False

Answer(s): A

Explanation:

A best practice is based on experience with delivering a solution. A new product will have limited best-practice information except for vendor- or vendor-partner-based recommendations. The longer a technology is used in a community, the more potential success; therefore, best practices can change over time. Chapter 6, Validation, Thoughts, and Processes



Only a software vendor develops a standard process or configuration.

  1. True
  2. False

Answer(s): B

Explanation:

A best practice is based on experience with delivering a solution. A new product will have limited best-practice information except for vendor- or vendor-partner-based recommendations. The longer a technology is used in a community, the more potential success; therefore, best practices may be recommended by non-vendor- related people. It is up to a designer to validate this information rather than ignore it straightaway. Chapter 6, Validation, Thoughts, and Processes



A logical design can contain which of the following? (Choose three)

  1. BIOS settings
  2. Data flow
  3. Key component relationships
  4. High-level diagrams
  5. Server host names

Answer(s): B,C,D

Explanation:

A logical diagram can be used to show service components and how they relate to each other. A logical diagram is high level in nature and is independent of the hardware used for a solution. Chapter 2, Presenting the Data Gathered



You are a VMware architect employed to design and build application environments and the underlying platform for a software development company. The company is using a "devops" approach and has engaged with you at the beginning of the first planning meeting/pre-sprint. The software has yet to be written. However, you have some high-level specifications that are subject to change at each of the early meetings. The is more logical for virtual machine sizing.

  1. predictive sizing approach based on current software
  2. adaptive sizing approach

Answer(s): B

Explanation:

There are two types of scaling approaches in virtual platforms: adaptive and predictive. Both approaches are usable; however, a designer must work out which is the best approach for each project.
The adaptive approach to guest virtual machine design is a major advantage that virtualization technology brings to a datacenter. It allows a guest virtual machine to be created initially on a few metrics or high-level requirements (such as a limited budget) and scaled (that is, grown, not shrunk) through the virtual machine life cycle. In many cases, this scaling can be performed hot/live without outage/downtime to the running applications.
The predictive approach, on the other hand, requires more planning and research, and you must know the metrics before deployment. The advantage here is that once the virtual machine has been deployed, only application maintenance is required. The application requirements are known. Chapter 5, Design Approaches



You are working on a hybrid cloud project, where production applications (yet to be fully developed) are to be deployed. Which of the following is a project requirement?

  1. The production data must be in the UK at all times.
  2. The hosting partner provides sufficient resources without overcommitment to support application load.
  3. The hosting provider meets uptime expectations.
  4. The development team provides the software on time.

Answer(s): A

Explanation:

A requirement is a definable and measurable project item. It must be part of the delivery, and its removal cannot be justified. Chapter 2, Definitions of Key Terms



In the project life cycle, the defines the vision.

  1. IT architect
  2. software vendor
  3. business

Answer(s): C

Explanation:

By reviewing the current configuration of a system and mapping the final status of components as described in the vision, the business identifies the gap between the two. A gap state analysis is a review of the items or tasks that are required to progress between the stages. Such an analysis is useful in creating milestone plans, implementation orders, and so on.
Chapter 2, Gathering Information and Spotting the Gaps



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