2024 NCSE-Core exam torrent NCSE-Core Study Guide
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Nutanix NCSE-Core (Nutanix Certified Systems Engineer-Core) Exam is a certification exam that is designed to test the competency and knowledge of participants in implementing, managing, and administering Nutanix solutions. NCSE-Core exam is intended for IT professionals who work with Nutanix solutions and want to demonstrate their expertise in the field. NCSE-Core exam covers various topics, including Nutanix architecture, installation, configuration, and troubleshooting.
NEW QUESTION # 45
How will an HDD failure affect VMs with data on the failed device?
- A. The VMs will remain operational on that host and continue to function normally with no noticeable impact
- B. An HA event will occur, causing the affected VMs to restart on a node that contains the replica data.
- C. The VMs will crash, and will be restarted once the failed HDD has been replaced and the data has been restored.
- D. A live migration will be initiated, moving the affected VMs to a host that contains the replica data.
Answer: A
NEW QUESTION # 46
A prospect is evaluating solutions to support a project. The SE proposes a hybrid model as recommended by size in addition to nutanix, the prospect is evaluating an all flash storage array. The storage administrator is concerned about the performance the hybrid configuration and claims that the flash array is less expensive the it Director sees the benefits of Nutanix but needs to address the team's concerns.
Which two Nutanix features should be discussed to address the concems
of the storage administrator? (Choose two)
- A. Capacity Planner
- B. Data Locality
- C. NVMe support
- D. 40Gb/s support
- E. Automatic Data Tiering
Answer: B,E
Explanation:
A: Data Locality:
* Nutanix's data locality feature ensures that data is kept close to the VM that uses it, typically on the same node. This reduces latency and improves performance by minimizing the need for data to travel over the network.
* This feature is crucial in a hybrid configuration as it ensures that frequently accessed data remains on the faster SSD tier, thus enhancing overall performance.
E: Automatic Data Tiering:
* Nutanix employs automatic data tiering to move data between different types of storage (e.g., SSD and HDD) based on usage patterns. Frequently accessed data is kept on faster SSDs, while less frequently accessed data is moved to HDDs.
* This ensures optimal performance by leveraging the speed of SSDs for active data while utilizing the capacity of HDDs for less critical data, thereby addressing the storage administrator's concerns about performance in a hybrid setup.
References:
* The Nutanix Bible and other technical documentation explain these features in detail, emphasizing how they contribute to high performance and efficient storage management in Nutanix clusters.
NEW QUESTION # 47
A customer is asking for a quote for a hybrid cluster to run general purpose VMs and an ERP application containing a 500GB database. The customer has a VSAN ReadyNode quote already and looking for a comparable Nutanix solution. They share the following specifications
3 hosts
2 x E5-2640v4 CPU
512GB RAM
1 x 480GB SSD
2 x 8TB HDD
2 x 1GB NIC
Which two aspects of the requested configuration should cause concern and need for further discovery?
(Choose two.)
- A. 2 x E5-2640v4 CPU
- B. 1 x 480GB SSD
- C. 2 x 1GB NIC
- D. 512GB RAM
- E. 2 x 8TB HDD
Answer: B,C
Explanation:
* 1 x 480GB SSD:
* For a hybrid cluster running both general-purpose VMs and an ERP application with a 500GB database, having a single 480GB SSD may lead to performance bottlenecks.
* Nutanix best practices recommend using multiple SSDs for better I/O performance and redundancy.
* 2 x 1GB NIC:
* The network interface cards (NICs) with only 1GB capacity each are insufficient for a production environment expected to handle significant data and application traffic.
* Nutanix typically recommends 10GB NICs for adequate bandwidth and performance in such scenarios.
References:
* Nutanix Community Edition Hardware Recommendations.
* Nutanix Bible - Network and Storage Configuration Best Practices.
NEW QUESTION # 48
A customer plans to migrate a business critical,highly tranactional SQL Server database to Nutanix Currently the databases is running on a physical server with 256GB of RAM and 12CPU cores at > 80% utilization To run the VM on a single NUMA node, which processor configuration should the SE recommend for this workload?
- A. Intel E5 2667v4 ( 8 cores each @ 3.2GHZ, 16 Cores total)
- B. Intel E5 2620v4 ( 8 cores each @ 2.1GHZ, 16 Cores total)
- C. Intel E5 2643v4 ( 6 cores each @ 3.4GHZ, 12 Cores total)
- D. Intel E5 2680v4 (14 cores each @ 2.4GHZ, 28 Cores total)
Answer: A
Explanation:
* Understanding the requirements: The SQL Server database currently runs on a physical server with
256GB of RAM and 12 CPU cores at > 80% utilization. The VM must run on a single NUMA (Non-Uniform Memory Access) node to maintain performance.
* NUMA Node Configuration:
* NUMA nodes are designed to optimize memory access and CPU utilization.
* Keeping the VM within a single NUMA node ensures low latency and high performance.
* Processor Options:
* Option A (Intel E5 2680v4): 14 cores each @ 2.4GHz, 28 cores total. This exceeds the core count for a single NUMA node.
* Option B (Intel E5 2620v4): 8 cores each @ 2.1GHz, 16 cores total. Lower clock speed and fewer cores might not meet the performance requirements.
* Option C (Intel E5 2643v4): 6 cores each @ 3.4GHz, 12 cores total. Matches the current core count but has higher clock speed; however, total cores might limit future scalability.
* Option D (Intel E5 2667v4): 8 cores each @ 3.2GHz, 16 cores total. This provides a good balance of cores and clock speed, aligning with current and future performance needs.
* Performance Consideration:
* The SQL Server is highly transactional, requiring both high core count and high clock speed for optimal performance.
* Option D (Intel E5 2667v4) offers a suitable compromise with 8 cores at 3.2GHz, totaling 16 cores. This configuration will fit within a single NUMA node, providing the necessary performance and maintaining efficient memory access.
References:
* General CPU configuration guidelines from Nutanix documentation.
* NUMA architecture and performance optimization best practices.
NEW QUESTION # 49
Refer to the exhibit.
Assuming a prospect is currently using Thick Provisioned virtual disk, at a minimum, which two tabs should be evaluated in an RVTools report to determine required resources for sizing? (Choose two.)
- A. vInfo
- B. vPartition
- C. vNetwork
- D. vCluster
- E. vDisk
Answer: A,B
NEW QUESTION # 50
An administrator needs to report on any alerts generated by a Nutanix cluster that affected the cluster's availability over the past 10 days.
Which method should be used to locate these events?
- A. On the Alerts dashboard, filter based on Impact Type and the desired Time Range.
- B. Export the cluster event log to a CSV on the Alerts dashboard.
- C. On the Health dashboard, use the Log Collector to export data based on time stamp.
- D. Configure an Alert Policy to generate an email with the data on the Health dashboard.
Answer: A
Explanation:
To report on any alerts generated by a Nutanix cluster that affected the cluster's availability over the past 10 days, the administrator should use the Alerts dashboard in Prism. The steps are as follows:
* Navigate to the Alerts dashboard in the Prism web console.
* Use the filter options to select the Impact Type, specifically filtering for alerts that impact cluster
* availability.
* Set the desired Time Range to the past 10 days to view relevant alerts within this period.
* Review the filtered alerts to identify any that affected the cluster's availability.
This method provides a focused view of alerts related to cluster availability and allows for efficient reporting and analysis.
References:
* Nutanix Prism Web Console Guide
* Nutanix Alerts Dashboard Documentation
NEW QUESTION # 51
A customer needs to deploy 5000 virtual desktops on Nutanix. The requirements call for an active /active deployment, such that an entire site can be made unavailable due to maintenance or disaster without impacting desktop availability. What is the minimum number of nodes necessary to meet the customer's requirements?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 52
main problem relates to the existing architecture and a mix of vendors who are slow to release update to their products. Which core facet of WebScale architecture should the Nutanix systems engineer discuss?
- A. Rich analytics
- B. enterprise class feature
- C. continuous innovation
- D. one-click upgrades
Answer: C
NEW QUESTION # 53
An 8-node hybrid cluster is configured with a Fault Tolerance level of 2 (RF3). All nodes are identical. Which simultaneous failures will result in VM data being unavailable?
- A. Single SSD failure on one node and a single SSD failure on another node
- B. SSD failures on two nodes and a CVM powered off on another.
- C. CVM being powered off on one node and two HDD failures on another node.
- D. Two HDD failures on one node and a single SSD failure on another node
Answer: B
NEW QUESTION # 54
Based on their current workload. a customer request the systems engineer to create a solution that does not exceed 80% CPU utilization when a node is placed in maintenance mode (N+0) When creating the Sizer Scenario in Automatic Mode, how can the systems engineer accomplish this?
- A. Use Customize to increase the CPU Core count until the CPU utilization is 80%
- B. Customize the CPU threshold in the scenario's sizing options.
- C. Modify the solution by adding compute only nodes to the cluster
- D. Select a higher-end processor when defining the workload.
Answer: B
NEW QUESTION # 55
Which two items represent measurable POC success criteria? (Choose two.)
- A. Deployed 100 desktops on AHV using Citrix MCS plugin
- B. Restored VMs from Protection Domain
- C. Compare Nutanix to existing infrastructure
- D. Tested VDI Broker
- E. Demonstrated Prism
Answer: A,B
NEW QUESTION # 56
A prospective customer indicates a requirement to replicate data offsite for a production workload.
Which two questions should the systems engineer ask about the prospect's requirement? (Choose two)
- A. What compression ratio does your application require?
- B. What OS will be depolyed on the server VMs?
- C. How much data needs to be replicated?
- D. What are the retention requirements?
Answer: C,D
NEW QUESTION # 57
A prospect's business is growing 100% year over year. The prospect is interested in Nutanix for their main datacenter due to the alility to scale quickly and easily. They have three remote sites that will be refreshed within the next year. Each site needs to replicate to their many datacenter. The SE proposes the Nutanix NX line, and the prospect asks to utilize the Xpress line.
For which reason is the Xpress line the wrong choice? (Choose two)
- A. SX licensing does not support cluster-to-cluster replication
- B. SX has a lower services cost for installation.
- C. SX licensing will not support many-to-many- cluster replication
- D. SX is limited to one 4-node cluster.
- E. SX is limited to two 4-node clusters.
Answer: C,E
NEW QUESTION # 58
Which function does the Curator service perform?
- A. Start and stops other cluster services
- B. Distributes storage optimization tasks
- C. Stores cluster configuration
- D. Schedules snapshots
Answer: B
Explanation:
The Curator service in a Nutanix cluster is responsible for distributing storage optimization tasks. This includes managing and distributing tasks such as disk balancing, proactive scrubbing, compression, deduplication, and erasure coding.
* Task Distribution: Curator runs on every node and is controlled by an elected Curator Leader who is responsible for task and job delegation.
* Scan Types: Curator performs full scans every six hours and partial scans every hour to ensure optimal storage performance and resource utilization.
* Optimization Activities: The service ensures efficient data placement and storage utilization across the cluster.
References:
* Nutanix Bible: Provides an in-depth explanation of Curator and its role in the cluster.
* Nutanix Documentation: Further details on the operations and management of Curator tasks.
NEW QUESTION # 59
An 8-node hybrid cluster is configured with a Fault Tolerance level of 2 (RF3). All nodes are identical.
Which simultaneous failures will result in VM data being unavailable?
- A. Single SSD failure on one node and a single SSD failure on another node
- B. CVM being powered off on one node and two HDD failures on another node.
- C. Two HDD failures on one node and a single SSD failure on another node.
- D. SSD failures on two nodes and a CVM powered off on another
Answer: D
NEW QUESTION # 60
Refer to Exhibit:
An administrator logs in to Prism and sees the status shown in the exhibit within the Hardware Diagram section.
What should the administrator do?
- A. Check status of applications running on the cluster and call support.
- B. Resolve all alerts and re-import the disks to make sure there is no service disruption.
- C. Restart all CVMs for the cluster to check, confirm health and repartition and add the disks.
- D. Reseat all disk immediately. If this does not help, reseat the nodes.
Answer: B
NEW QUESTION # 61
A customer is asking for a quote for a hybrid cluster to run general purpose VMs and an ERP application containing a 500GB database. The customer has a VSAN ReadyNode quote already and looking for a comparable Nutanix solution. They share the following specifications
3 hosts
2 x E5-2640v4 CPU
512GB RAM
1 x 480GB SSD
2 x 8TB HDD
2 x 1GB NIC
Which two aspects of the requested configuration should cause concern and need for further discovery? (Choose two.)
- A. 2 x E5-2640v4 CPU
- B. 1 x 480GB SSD
- C. 2 x 1GB NIC
- D. 512GB RAM
- E. 2 x 8TB HDD
Answer: B,C
NEW QUESTION # 62
Refer to the exhibit.
***Exhibit is Missing***
Based on the sizing scenario, what level of resiliency can be inferred about the configuration?
- A. N+0
- B. FTT1
- C. N+1
- D. N+2
Answer: C
Explanation:
C: N+1:
* In the exhibit, the Failover option selected is "Standard (N+1)." This indicates that the configuration is set up for N+1 resiliency.
* N+1 resiliency means that the system can tolerate the failure of one node without affecting the availability of the applications running on the cluster.
* This is a standard level of resiliency where one additional node is available to take over in case of a failure, ensuring continuous availability.
References:
* Nutanix documentation and the Nutanix Bible explain the different levels of resiliency, including N+1, and how they ensure data and application availability in case of node failures.
NEW QUESTION # 63
A prospect needs to refresh their environment but has a very small budget for the project. Four years after their last infrastructure refresh, the prospect's core datacenter is only running at 40% utilization. In addition, they have 25 satelite offices.
Each office has a requirement to run 4 to 6 VMs locally.
Which two Nutanix platform capabilities should the SE hlight to address the prospects concerns? (Choose two)
- A. Software only
- B. Multi-site management
- C. Single node backup
- D. Automated data storage tiering
- E. Pay as you grow
Answer: B,E
Explanation:
When addressing the prospect's need to refresh their environment with a small budget, it is crucial to highlight Nutanix's capabilities that can efficiently utilize their resources and manage their widespread satellite offices.
The core data center's low utilization indicates room for improvement in resource management and cost-effectiveness. Here's a detailed explanation of the selected capabilities:
A: Multi-site management:
* Nutanix Prism Central allows centralized management of multiple sites, including satellite offices. This capability is essential for managing infrastructure across the prospect's 25 satellite offices efficiently.
* Centralized management reduces the complexity and operational overhead associated with maintaining multiple disparate systems. This leads to better resource utilization and easier scalability.
NEW QUESTION # 64
A prospect discloses they have had multiple instances of unplanned downtime in the last 3 months due to server hardware failures. The team has been through multiple reorganizations in support of a struggling cloud migration project. As a result, cummunication whithin the team has suffered and some notifications from their SNMP based monitoring solution have been ignored.
Which Nutanix feature should the SE highlight?
- A. Watchtower
- B. Prism
- C. Insights
- D. Pulse
Answer: D
Explanation:
* Problem Analysis:
* The prospect experiences unplanned downtime due to hardware failures.
* Notifications from their SNMP-based monitoring solution have been ignored due to communication issues.
* Nutanix Pulse:
* Pulse provides proactive support and monitoring for Nutanix clusters.
* It automatically sends cluster health and performance data to Nutanix support, enabling quick issue resolution.
* This feature can ensure critical alerts and notifications are not missed, improving overall system reliability.
* Conclusion:
* Highlighting Pulse helps address the key pain points of unplanned downtime and missed notifications, ensuring better system management and support.
References:
* Nutanix Pulse feature documentation.
* Nutanix support and monitoring best practices.
NEW QUESTION # 65
An administrator is managing a highly active SQL workload that is writing I/Os in 2 MB chunks to a vDisk.
The administrator wants to optimize capacity setting for the computer.
Which storage optimization technology should the administration select to meet these requirement?
- A. Capacity Deduplication
- B. Compression
- C. Cache Deduplication
- D. Erasure Coding
Answer: B
Explanation:
For highly active SQL workloads that write I/Os in 2 MB chunks to a vDisk, compression is the most suitable storage optimization technology. Compression works well with larger I/O sizes and can significantly reduce the storage footprint, providing better capacity optimization. This approach ensures that the large chunks of data are compressed efficiently, maximizing storage utilization and performance.
NEW QUESTION # 66
What is the main function of Oplog?
- A. A persistent write buffer to coalesce bursts of random writes before destaging to the extend store
- B. A persistent write buffer to coalesce all writes before destaging to the extent store
- C. A memory cache to coalesce all writes before destaging to the extent store
- D. A memory cache to coalesce bursts of random writes before destaging to the extent store
Answer: A
Explanation:
The main function of Oplog in Nutanix is to act as a persistent write buffer to coalesce bursts of random writes before they are destaged to the extent store. This mechanism improves write performance and reduces latency by temporarily storing write operations in a fast, dedicated buffer before committing them to the slower, persistent storage.
NEW QUESTION # 67
A customer needs to image nodes that are either bare metal or require a different hypervisor. Which Nutanix tool should be used?
- A. Era
- B. Prism Central
- C. Foundation
- D. Move
Answer: C
Explanation:
Nutanix Foundation is the tool used for imaging nodes that are either bare metal or require a different hypervisor. Foundation is designed for bootstrapping the imaging and deployment of Nutanix clusters. It installs the desired version of the Acropolis Operating System (AOS) and the hypervisor of choice. By default, Nutanix nodes ship with AHV pre-installed, but Foundation can be used to re-image the nodes with a different hypervisor if required.
References:
* Nutanix Bible
NEW QUESTION # 68
An administrator knows that the disk in a cluster are out of date and a new firmware is available. For security reason, these cluster do not have access to the internet. Which two steps must be completed to update the firmware? (Choose two.)
- A. Select Upgrade Software, then select disks and upload the updated firmware.
- B. Download the dark site bundle and stage it on an internal webserver
- C. Download the update firmware .tgz file from the Nutanix Portal.
- D. Configure LCM with a URL to access the firmware bundle.
Answer: B,C
Explanation:
* Understanding the Requirements:
* The cluster is in a dark site, meaning it does not have access to the internet. This requires offline methods to update firmware.
* Download the Update Firmware:
* Option A: Download the update firmware .tgz file from the Nutanix Portal:
* The administrator needs to download the firmware update package from the Nutanix Support Portal. This package typically includes the necessary firmware files bundled in a
.tgz file format.
* This step ensures that the correct and latest firmware version is obtained directly from Nutanix, which is essential for maintaining compatibility and stability.
* Stage the Dark Site Bundle:
* Option B: Download the dark site bundle and stage it on an internal webserver:
* Since the cluster does not have internet access, the administrator must use the dark site bundle. This involves downloading the necessary files and staging them on an internal web server accessible by the Nutanix cluster.
* This internal web server acts as a local repository for the firmware updates, ensuring that the cluster can access and apply the updates without needing an internet connection.
* Conclusion:
* To update the firmware in a dark site environment, the correct steps are to download the firmware
.tgz file from the Nutanix Portal and stage the dark site bundle on an internal web server.
References: Nutanix documentation on dark site management and firmware updates.
NEW QUESTION # 69
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The NCSE-Core certification is a valuable asset for IT professionals looking to advance their careers in the field of enterprise IT infrastructure. Nutanix Certified Systems Engineer-Core (NCSE-Core) certification validates the skills and knowledge required to design, deploy, and manage Nutanix enterprise cloud solutions. Holding a NCSE-Core certification demonstrates to employers that the candidate is an expert in Nutanix solutions and is capable of managing complex IT infrastructures.
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