EMC Virtualized Data Center and Cloud Infrastructure Design Specialist 認定 E20-018 試験問題:

1. Refer to the exhibit.

You are expanding the compute layer of a VDC, and need to add more access layer switches to provide connectivity to the hypervisors. However, there are no available ports on the two aggregation layer switches to accommodate the uplink connections from the new access layer switches, and there is no available funding to purchase additional aggregation layer switches. The active uplinks are operating at 95% of capacity.
What can be done to expand the access layer and not impact the performance of the existing environment?

A) Aggregate the datacenter core switches.
Reduce the number of uplink connections from each access layer switch by 50%.
B) Aggregate the access layer switches into a virtual switch.
Reduce the number of uplink connections to each aggregation layer switch by 50%.
C) Aggregate the datacenter core switches.
Reduce the number of uplink connections from each aggregation layer switch by 50%.
D) Aggregate the aggregation layer switches into a virtual switch.
Reduce the number of uplink connections from each access layer switch by 50%.

2. Which aspect of data security does TLS address?

A) Centralized key management for data encryption
B) Secure block data transfer between the host and storage array
C) Encryption of data at rest on a storage device
D) Secure data transport to and from the application over the network

3. A small company is deploying VDI as part of their VDC initiative. The storage array that is currently being used for VDI and other applications contains SSD, SAS and NL SAS drives. The SSDs are being used exclusively for the Email servers, and the SAS and NL SAS drives are being used by all the applications, including VDI. Each application is configured to use one or more storage pools.
Every morning at 9:00 AM, the performance of all applications connected to the storage array degrades significantly for a period of time and then returns to normal.
How can this issue be resolved with the least capital expenditure, in the shortest amount of time, and without impacting the normal performance of the applications?

A) Purchase new SSDs to use for the VDI deployment.
B) Purchase new SSDs for the other applications.
C) Migrate the LUNs on the SSDs to SAS drives, then allocate the SSDs to the VDI storage pool.
D) Migrate the LUNs on the SSDs to SAS drives, then allocate the SSDs to a caching tier.

4. Why is it possible for Object-based Storage Devices (OSD) to achieve massive scale without significant performance impact?

A) OSD distributes data management across clustered nodes
B) Data organization is hierarchical by Object ID (OID)
C) OSD uses solid state drives exclusively
D) Data organization is flat by Object ID (OID)

5. An organization uses Linux desktops, laptops, and servers for their primary infrastructure. The company has a business need to run a mission critical application that is only available for the Microsoft Windows operating system. This application and associated data need to be available to 10-12 users.
Which solution would best meet their needs, and why?

A) RDS, because it offers true user segmentation
B) VDI, because it provides better fault tolerance
C) VDI, because it offers a lower cost per user than
D) RDS, because it provides better fault tolerance

質問と回答：