Dell Cloud Infrastructure Design 2023 Exam D-CI-DS-23 Free Questions Online

Professionals choose to complete the Dell Cloud Infrastructure Design 2023 certification to enable and validate their ability to effectively design a cloud infrastructure that supports multiple types of services. However, passing the D-CI-DS-23 exam successfully is not easy. How about choosing the latest D-CI-DS-23 practice exam from QuestionsTube to make preparations? We have completed the latest DELL EMC D-CI-DS-23 exam questions online to help you pass the exam with ease. Here, we would like to share the D-CI-DS-23 free questions online to help you check the quality, along with details explanations.

1. A cloud architect is designing a hybrid cloud for an organization. A requirement for this environment is that the private cloud user credential be trusted by both cloud provisioning APIs.

Which type of authentication will meet this requirement?

A. Multi-factor

B. Federated

C. Private-key

D. Shared-key

Answer: B

Explanation:

A. Multi-factor authentication (MFA) involves using multiple forms of verification to access a system. While MFA adds an extra layer of security by requiring multiple credentials, it doesn't inherently address the requirement of trusting the private cloud user credential across multiple cloud provisioning APIs. Therefore, it's not the best choice in this scenario.

B. Federated authentication allows for the establishment of trust between different systems or organizations. In a hybrid cloud environment, federated authentication enables users to use the same set of credentials to access resources across both the private and public cloud environments. This aligns with the requirement of having the private cloud user credential trusted by both cloud provisioning APIs. Therefore, option B seems to be the most suitable choice.

C. Private-key authentication involves using a private key to authenticate users. While private keys can provide secure authentication, they are typically used within a single system or environment. It's not designed to establish trust across multiple cloud provisioning APIs, so it's not the best fit for this scenario.

D. Shared-key authentication involves using a single key that is shared between parties for authentication. Similar to private-key authentication, shared-key authentication is not typically used for establishing trust across multiple cloud provisioning APIs. It's more suited for scenarios where a single key is used for authentication within a closed system.

2. What should be used when sizing memory for nodes of a HCI deployment?

A. Host memory consumption

B. VM memory consumption

C. vCPU consumption

D. Total core count

Answer: B

Explanation:

In the context of sizing memory for nodes in a Hyperconverged Infrastructure (HCI) deployment, the correct answer is B: VM memory consumption.

Why VM memory consumption is the most appropriate metric for sizing memory in HCI environments:

Focus on Virtualized Workloads: HCI environments typically operate on virtualized workloads, where multiple virtual machines (VMs) run on each node. Each VM requires a certain amount of memory to operate efficiently. Therefore, understanding the memory requirements of these VMs is crucial for sizing the memory of the nodes.

Flexibility and Scalability: VM memory consumption allows for flexibility and scalability in the HCI environment. As workloads change and grow, VM memory requirements can be adjusted accordingly. By sizing memory based on VM consumption, you ensure that each node has sufficient memory to accommodate the VMs running on it, even as workload demands fluctuate.

Resource Isolation: By considering VM memory consumption, you can ensure proper resource isolation among VMs running on the same node. This helps prevent resource contention and performance degradation, as each VM has its own allocated memory resources.

Efficient Resource Utilization: Sizing memory based on VM consumption helps optimize resource utilization within the HCI environment. It ensures that memory resources are allocated efficiently, minimizing waste and maximizing the number of VMs that can run on each node without sacrificing performance.

In summary, using VM memory consumption as the metric for sizing memory in HCI deployments ensures that nodes have sufficient memory to support the virtualized workloads running on them, while also enabling flexibility, scalability, resource isolation, and efficient resource utilization.

3. You are designing a CI solution. You need to ensure maximum CPU utilization.

Which metric will tell you if you have met this goal?

A. Total IOPS

B. Percent idle time

C. I/O wait time

D. Average disk queue length

Answer: B

Explanation:

In the context of designing a Continuous Integration (CI) solution where maximizing CPU utilization is a goal, the correct metric to determine if this goal has been met is B. Percent idle time.

A. Total IOPS (Input/Output Operations Per Second): This metric measures the rate of read/write operations to storage. While it can be useful for understanding storage performance, it doesn't directly relate to CPU utilization. High IOPS could indicate heavy disk activity, but it doesn't necessarily mean the CPU is fully utilized.

B. Percent idle time: This metric measures the percentage of time the CPU is idle, meaning it's not actively processing tasks. Maximizing CPU utilization means minimizing idle time, so a lower percentage of idle time indicates higher CPU utilization. Therefore, this metric directly reflects the goal of maximizing CPU utilization.

C. I/O wait time: This metric measures the amount of time the CPU spends waiting for I/O operations to complete. While it's related to system performance, particularly in scenarios where I/O bottlenecks can affect CPU utilization, it doesn't directly indicate the level of CPU utilization on its own.

D. Average disk queue length: This metric measures the average number of I/O requests that are queued and waiting for disk access. Similar to I/O wait time, it's more related to storage performance than CPU utilization. While high disk queue length can potentially impact CPU performance if the CPU spends significant time waiting for disk operations to complete, it doesn't directly measure CPU utilization.

4. What is the minimum number of nodes supported for a HCI deployment with RAID 5 erasure coding?

A. 3

B. 4

C. 5

D. 6

Answer: B

Explanation:

In a hyper-converged infrastructure (HCI) deployment with RAID 5 erasure coding, the minimum number of nodes supported is 4. This is because RAID 5 requires a minimum of three data disks plus one parity disk to protect against data loss in the event of a disk failure.

With RAID 5 erasure coding, data is distributed across multiple disks with parity information stored on another disk. This allows for fault tolerance and data redundancy. However, to implement RAID 5, you need a minimum of four disks (three for data and one for parity).

5. An organization wants to deploy a CMP solution in a private cloud.

What requirements influence the sizing of the underlying cloud management infrastructure?

A. Size of the service portal and catalog

B. CMP version and functions it provides

C. Type of services and cost of each service

D. High availability and performance

Answer: D

Explanation:

A. Size of the service portal and catalog:

The size of the service portal and catalog, while important for user experience and content management, typically doesn't directly influence the sizing of the underlying cloud management infrastructure. This aspect is more about design and content management rather than the technical specifications of the infrastructure.

B. CMP version and functions it provides:

The CMP (Cloud Management Platform) version and its functionalities are crucial factors in determining the sizing of the underlying infrastructure. Different versions of CMP solutions come with varying features and capabilities. Newer versions might introduce additional functionalities that demand more computing power, storage capacity, or network resources. Therefore, the CMP version and its functions directly influence the sizing requirements of the infrastructure.

C. Type of services and cost of each service:

While the types of services offered and their associated costs are important considerations for designing a CMP solution, they are not directly related to the sizing of the underlying cloud management infrastructure. Instead, these factors influence the design of service offerings and pricing models within the CMP solution.

D. High availability and performance:

This option is the correct answer. High availability and performance requirements directly impact the sizing of the underlying cloud management infrastructure. Ensuring high availability involves redundant components and fault-tolerant architecture, which can increase resource requirements. Similarly, achieving optimal performance may necessitate higher compute, storage, and network resources. Therefore, both high availability and performance considerations are key factors in determining the appropriate sizing of the infrastructure.

6. An organization wants to have showback capability in their private cloud.

Which cloud management platform component should be included in the cloud design to support this requirement?

A. SSO

B. Service catalog

C. Metering application

D. Monitoring application

Answer: C

Explanation:

The organization wants to implement showback capability in their private cloud. Showback refers to the practice of providing visibility into the usage and costs of cloud resources to internal users or departments, without necessarily charging them. This helps in promoting accountability, optimizing resource usage, and making informed decisions about resource allocation.

A. SSO (Single Sign-On): SSO allows users to authenticate once and access multiple applications without needing to log in again. While important for security and user convenience, SSO doesn't directly relate to showback capability.

B. Service catalog: A service catalog is a centralized collection of services that users can request from the cloud provider. While it's essential for users to understand what services are available, it doesn't directly enable showback capability.

C. Metering application: Metering involves tracking resource usage, such as CPU hours, storage space, network bandwidth, etc., and associating costs with that usage. A metering application is crucial for implementing showback, as it provides the necessary data to show users how much they've consumed and what it costs.

D. Monitoring application: Monitoring applications track the performance and health of cloud resources, such as servers, networks, and applications. While monitoring is essential for ensuring the reliability and performance of the cloud environment, it doesn't directly enable showback capability.

7. A cloud architect is designing a hybrid cloud for an organization. A requirement for this environment is for federated access to both cloud provisioning APIs.

What must be configured between both cloud providers' authentication mechanisms?

A. Shared super-user account

B. Trust relationship

C. Identical accounts

D. IPsec VPN

Answer: B

Explanation:

The question revolves around designing a hybrid cloud environment, where federated access to both cloud providers' provisioning APIs is a requirement.

Option A, "Shared super-user account," is not the recommended approach for federated access because it introduces security risks and lacks granularity in access control. Using a single super-user account across both cloud providers could lead to potential security breaches and doesn't align with best practices for managing access in a distributed environment.

Option B, "Trust relationship," is the correct answer. Establishing a trust relationship between the authentication mechanisms of both cloud providers allows users from one cloud environment to access resources in the other cloud environment without needing to duplicate accounts or share super-user credentials.

Option C, "Identical accounts," suggests having the same user accounts across both cloud providers. While this could work, it might not be practical or feasible due to differences in account management, policies, and access requirements between the two providers. Moreover, maintaining identical accounts across different platforms can be complex and difficult to manage in the long run.

Option D, "IPsec VPN," is not directly related to federated access control. An IPsec VPN (Virtual Private Network) is typically used to establish a secure communication channel between different networks or endpoints, but it doesn't inherently address the requirement for federated access to cloud provisioning APIs.

In this scenario, a trust relationship enables secure communication and authentication between the two cloud providers, ensuring that users authenticated in one environment can seamlessly access resources and services in the other environment without compromising security.

To implement a trust relationship between the authentication mechanisms of both cloud providers, various technologies and protocols can be used, such as Security Assertion Markup Language (SAML), OAuth, or OpenID Connect, depending on the specific requirements and capabilities of the cloud platforms involved.

8. When considering a packaged PaaS solution, what is a potential advantage?

A. Greater control over infrastructure management

B. Lower cost of ownership

C. Longer time to market for applications

D. Reduced reliance on third-party vendors

Answer: B

Explanation:

This question revolves around the advantages of a packaged Platform as a Service (PaaS) solution.

A. Greater control over infrastructure management:

This option suggests that with a packaged PaaS solution, you would have greater control over infrastructure management. However, this isn't typically the case with PaaS offerings. PaaS solutions are designed to abstract away much of the underlying infrastructure management, providing developers with pre-configured environments to deploy and run their applications. Therefore, this option is not an advantage of a packaged PaaS solution.

B. Lower cost of ownership:

This option highlights one of the key advantages of adopting a packaged PaaS solution. PaaS offerings often eliminate the need for organizations to invest heavily in infrastructure procurement, maintenance, and management. By leveraging a PaaS platform, organizations can reduce their total cost of ownership (TCO) by offloading infrastructure responsibilities to the PaaS provider. This can include savings in hardware costs, staffing, and ongoing maintenance expenses, making it a compelling advantage for organizations looking to optimize their IT spending.

C. Longer time to market for applications:

This option suggests that adopting a packaged PaaS solution would result in a longer time to market for applications. However, this is typically not the case with PaaS offerings. In fact, one of the primary benefits of PaaS is its ability to accelerate application development and deployment by providing developers with ready-to-use environments and built-in tools and services. Therefore, this option is not an advantage of a packaged PaaS solution.

D. Reduced reliance on third-party vendors:

This option implies that a packaged PaaS solution would result in reduced reliance on third-party vendors. However, PaaS solutions themselves are third-party offerings provided by cloud service providers or specialized PaaS vendors. While adopting a PaaS platform may reduce the need to engage with multiple infrastructure vendors, it doesn't eliminate the reliance on the PaaS provider itself. Therefore, this option is not an advantage of a packaged PaaS solution.

9. What is a primary driver for organizations to adopt cloud solutions in the context of digital business imperatives?

A. Reducing compliance requirements

B. Simplifying on-premises infrastructure

C. Accelerating innovation and agility

D. Increasing hardware procurement costs

Answer: C

Explanation:

In the context of the Dell Cloud Infrastructure Design 2023 exam, the primary driver for organizations to adopt cloud solutions in the context of digital business imperatives is option C: Accelerating innovation and agility.

Accelerating Innovation: Cloud solutions offer access to cutting-edge technologies and services that enable organizations to innovate faster. With cloud computing, businesses can experiment with new ideas, develop and deploy applications more quickly, and bring innovative products and services to market at a rapid pace. This acceleration of innovation gives organizations a competitive edge in today's fast-paced digital landscape.

Increasing Agility: Cloud computing provides the flexibility and scalability that organizations need to adapt to changing market conditions and customer demands. By leveraging cloud infrastructure, businesses can easily scale resources up or down based on demand, allowing them to respond quickly to fluctuations in workload and seize new opportunities as they arise. This agility is crucial for staying ahead of the competition and meeting the evolving needs of customers.

Cost Efficiency: While not explicitly mentioned in the options, it's worth noting that cloud solutions can also help organizations optimize costs by eliminating the need for upfront infrastructure investments and reducing ongoing maintenance expenses. This cost efficiency frees up resources that can be reinvested in innovation and growth initiatives, further enhancing the organization's ability to drive digital business imperatives.

Overall, accelerating innovation and agility are key drivers for organizations to adopt cloud solutions, enabling them to stay competitive in today's digital economy.

10. A cloud architect discovers that an organization wants to deploy 500 consumer applications initially and grow to over 2000 consumer applications in three years. These applications will use block storage only.

How does the information impact the cloud management platform infrastructure sizing?

A. Influences proxy server data storage requirements

B. Influences CDN data storage requirements

C. Influences federation server data storage requirements

D. Influences monitoring server storage requirements

Answer: D

Explanation:

When an organization plans to deploy a significant number of consumer applications, as mentioned in the scenario (initially 500, growing to over 2000 in three years), it's crucial to have robust monitoring in place to ensure the performance, availability, and security of these applications.

Monitoring server storage requirements refer to the storage needed to store various types of monitoring data, such as logs, metrics, and events generated by these applications and the underlying infrastructure. As the number of applications increases, so does the volume of monitoring data generated.