Practice Free D-MSS-DS-23 Exam Online Questions
What is a benefit of using a performance assessment tool?
- A . Retrieves workload metrics from all storage systems
- B . Provides performance statistics in a structured postgres database
- C . Retrieves the performance archives using the Unity Data Collection
- D . Provides automated performance statistics in chart and table format
D
Explanation:
A performance assessment tool is used to evaluate the performance of storage systems and provide statistics that can be used to identify and troubleshoot performance issues. One of the benefits of using a performance assessment tool is that it provides automated performance statistics in chart and table format, making it easy to understand performance metrics and identify any potential issues. This allows the user to quickly identify and address any bottlenecks in the system, and make adjustments to improve performance.
What is achieved by adding a top tier of SSDs when designing a Dell Unity XT hybrid solution with FAST VP and FAST Cache?
- A . Isolates file top-talkers I/O from block data I/O
- B . Improves compression space efficiencies
- C . Provides an additional data redundancy layer
- D . Helps keep paged metadata on FLASH media
D
Explanation:
FAST VP (Fully Automated Storage Tiering for Virtual Pools) and FAST Cache (Fully Automated Storage Tiering for Cache) are features that allow you to optimize the performance of your storage by automatically moving data between different storage tiers based on usage patterns. The SSD tier is used to store frequently accessed metadata, such as file system structures, directories, and inode tables, which are accessed frequently and are small enough to fit in the SSD cache. Keeping paged metadata on flash media improves the overall system performance, as it allows for faster access to the metadata, reducing the latency and the number of I/O operations needed to access it.
When designing a Dell EMC SC Series system, which factors regarding general performance are important to understand?
- A . Write size and latency
- B . Block size and read size
- C . Latency and queue depth
- D . Transport and queue depth
C
Explanation:
"Whether gathering information or designing a system, it is important to understand two commonly used terms: Latency and queue depth"
What is a characteristic of tenant traffic on a Dell EMC Unity array?
- A . Separated by the associated VLANs at the Linux Kernel layer
- B . Separated by the associated subnet providing data separation with increasing security at the network layer
- C . Separated by one associated VLAN providing data separation with increasing security at the Linux Kernel layer
- D . Separated by the associated subnet at the Linux Kernel layer
Which two options are input parameters for Unity Designer? (Select 2)
- A . NAS Server Nodes
- B . Enclosures
- C . Block and File resources
- D . Drive Modules
- E . Host Access Modes
D
Explanation:
Unity Designer is a tool used to design and configure Dell EMC Unity storage systems. Two of the key input parameters for Unity Designer are Block and File resources, which include configuring LUNs, NAS servers, and file systems, and Drive Modules, which refer to the physical drives and their
configurations within the storage system.
Reference: Dell EMC Unity Designer User Guide.
Dell EMC Unity Configuration Best Practices.
Which CPU family is used on a Dell Unity XT 480?
- A . ice Lake
- B . Haswell
- C . Skylake
- D . Broadwell
C
Explanation:
The Skylake CPU family is a 6th generation Intel processor, which provides higher performance and improved energy efficiency compared to its predecessors. It is used on the Dell Unity XT 480, as well as other systems such as the Dell XPS 13, MacBook Pro, and HP Envy. Skylake CPUs are also used in servers, desktops, and laptops. Skylake CPUs include features such as Turbo Boost, Hyper-Threading, and support for DDR4 memory.
DRAG DROP
In vCenter, what is the correct order of steps to create a VM in a storage container provisioned on a Dell EMC Power Store system?
Explanation:
STEP1: VASA
STEP2: POWERSTORE CONNECTIVITY
STEP3: Create vvol datastore
STEP4: create vm storage policies
STEP5: Provision VMs based on vvol datastore
In a Dell Unity XT system, SSD wear alerts are issued at 180-, 90-, 60-, and 30-day periods before the predicted end of life.
What is automatically initiated on the spare drive at 30 days?
- A . Protective Copy Operations
- B . Proactive Copy Operations
- C . Preemptive Copy Operations
- D . Predictive Copy Operations
When designing a system to support Oracle OLAP Workload for a new customer with no I/O details, what are the default selections for the I/O profile input in sizer?
- A . Random Read:50% at 32KiB
Random write:50% at 32KiB - B . Sequential Read:80% at 8KiB
Sequential write:20% at 8KiB - C . Sequential Read:70% at 8KiB
Sequential write:30% at 8KiB - D . Random Read:70% at 8KiB
Random write:30% at 8KiB
While sizing a PowerStore solution with 5 TB usable capacity and 5000 IOPS for a Test/Development Application using NVMe drives, a solution architect observes that the recommended solution is 10 times the requested capacity.
What action must the architect take?
- A . Change the DRE Tolerance Parity in System Editor
- B . Change the DRR of the solution
- C . Configure the Unity solution as an alternative