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QUESTION NO: 1
When designing a storage platform, which of the following should be considered as part of the
overall design?
A. Capacity
B. I/O requirements of the applications to be supported
C. Disk latency tolerance
D. Growth rate
E. All of the above
Answer: E
Explanation:
A storage platform logical design requires in-depth analysis of factors that can affect applications.
In the case of storage, aspects that relate to the physical layer—such as the amount of usable
space required for services; the size, number, and speed of disks; and how fast the data is being
produced—could have a substantial impact to the storage platform.
Chapter 4, Storage Design – The Logical and Physical Approaches
QUESTION NO: 8
Storage DRS is enabled by default.
A. True
B. False
Answer: B
Explanation:
Chapter 4, Storage Design – The Logical and Physical Approaches
QUESTION NO: 13
A logical design can contain which of the following? (Choose three)
A. BIOS settings
B. Data flow
C. Key component relationships
D. High-level diagrams
E. Server host names
Answer: 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
QUESTION NO: 12
Only a software vendor develops a standard process or configuration.
A. True
B. False
Answer: B
Explanation:
9
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
QUESTION NO: 6
A project requirement _______________
A. must be achieved
B. can be set as aspirational but may never be achieved
Answer: A
Explanation:
A project requirement is a specific deliverable that the business has said must be provided at the
end of a project. It must always be achieved.
Chapter 4, Storage Design – The Logical and Physical Approaches
QUESTION NO: 11
A best practice can change over time.
A. True
B. False
Answer: 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
QUESTION NO: 2
You are the technical designer for a vSphere platform transformation project. After conducting
SME interviews and using various platform information-gathering methods, you have created a
high-level design document.
This document specifies the following:
Requirements:
R1. The solution must not have a single point of failure.
R2. Production applications must not have an outage of more than 10 seconds.
R3. Data must be based in the UK.
R4. There is a 7-year retention policy for contracts.
R5. Applications should support existing and developing workloads for the next 3 years’ growth.
Spec of servers:
Web 1 vCPU, 2 GB RAM, 100 GB storage
2
App 1 vCPU, 4 GB RAM, 100 Gb storage
DB 2 vCPU, 16 GB RAM, 750 Gb storage
At a late stage in the software development life cycle of a production application developed in-
house, an unfortunate issue was identified when the application was deployed to the production
vSphere cluster. The production core stacked switch has capacity issues, and this is having a
serious impact on all applications for which the switch is providing network services. Within the
test system, the application works as intended in the single test VLAN and with a single-host
configuration.
Which of the following could be tried to help in this situation, from a vSphere perspective? (Choose
two)
A. Redevelop the application for a virtual platform
B. Place the application into a single-vApp network
C. Add DRS rules to keep network traffic within the same host, where possible
D. Configure network I/O control
Answer: B,D
Explanation:
If you limit the application traffic to a specific dedicated network (that is, a separate VLAN) and
using enforced DRS affinity rules, the application traffic will not traverse the ESXi host’s physical
network interfaces. This will ensure that the impact of the application is minimized, while also
ensuring that the application itself is not limited.
The application servers already have vCPU settings. This suggests that the system has already
being virtualized in both types of environments. Network I/O control could be useful in the event of
contention, but the role of a designer would be to plan to prevent contention where possible; other
options would be more beneficial. In addition, Requirement 5 specifies that the system should
work with workloads over the next 3 years. Network I/O control would suggest contention very
early in the platform history.
Chapter 4, NetWork – Logical and Physical Design to allow applications to flow
QUESTION NO: 3
You are the technical designer for a vSphere platform transformation project. After conducting
SME interviews and using various platform information-gathering methods, you have created a
high-level design document.
3
This document specifies the following:
Requirements:
R1. The solution must not have a single point of failure.
R2. Production applications must not have an outage of more than 10 seconds.
R3. Data must be based in the UK.
R4. There is a 7-year retention policy for contracts.
R5. Applications should support existing and developing workloads for the next 3 years’ growth.
Spec of servers:
Web 1 vCPU, 2 GB RAM, 100 GB storage
App 1 vCPU, 4 GB RAM, 100 Gb storage
DB 2 vCPU, 16 GB RAM, 750 Gb storage
At a late stage in the software development life cycle of a production application developed in-
house, an unfortunate issue was identified when the application was deployed to the production
vSphere cluster. The production core stacked switch has capacity issues, and this is having a
serious impact on all applications for which the switch is providing network services. Within the
test system, the application works as intended in the single test VLAN and with a single-host
configuration.
what storage protocol is unsuitable?
A. NFS
B. iSCSI
C. FC
Answer: A
Explanation:
The requirements state that the application uptime requirements would not be met if using
vSphere HA alone. vSphere HA would invoke a restart of guest virtual machines after at least 10
seconds.
VMware fault tolerance would meet the uptime requirements; a failover would result in zero
downtime of the application. This technology can be used only with VMFS; therefore, NFS cannot
be used in this design.
Chapter 4, NetWork – Logical and Physical Design to allow applications to flow
4
QUESTION NO: 9
Storage DRS can be enabled and can balance I/O levels based on _______________
A. real-time stats
B. historical stats
Answer: 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 and Physical Approaches
QUESTION NO: 7
A logical diagram shows vendor-specific information.
A. True
B. False
Answer: B
Explanation:
A logical diagram shows the high-level components of a design or platform. It may include
descriptions such as data flow and entity relationships. However, it does not show specific vendors
(such as Dell or HP).
Chapter 2, Creating the design
7
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