PassTest CLO-002問題集620問でCompTIA Cloud Essentialsを確実実践
リアル最新CLO-002試験問題CLO-002問題集
質問 # 63
Which of the following describes the process of moving an application from an isolated data center to reduce latency and ensure close proximity to end users?
- A. Backup
- B. Replication
- C. Geo-redundancy
- D. Zones
正解：C
解説：
Geo-redundancy is the distribution of mission-critical components or infrastructures, such as servers, across multiple data centers that reside in different geographic locations1. Geo-redundancy acts as a safety net in case the primary site fails or in the event of a disaster or an outage that impacts an entire region1. Geo-redundancy also reduces latency and ensures close proximity to end users by delivering web content from the nearest data center2. Geo-redundancy is a common feature of cloud computing, as it provides high availability, reliability, and performance for cloud applications and services2.
Replication is the process of copying data from one location to another, such as from a primary site to a secondary site, or from one cloud provider to another3. Replication is a necessary but not sufficient condition for geo-redundancy, as it does not guarantee that the replicated data is accessible or consistent across different regions3. Replication can also introduce operational complexity and data synchronization issues3.
Zones are logical or physical partitions of a cloud provider's infrastructure that offer high availability and fault tolerance within a region4. Zones are usually located in the same or nearby data centers, and are connected by low-latency network links4. Zones can help distribute the workload and prevent single points of failure, but they do not provide geo-redundancy, as they are still vulnerable to regional outages or disasters4.
Backup is the process of creating and storing copies of data for the purpose of recovery in case of data loss or corruption5. Backup is an important part of data protection and disaster recovery, but it does not provide geo-redundancy, as it does not ensure that the backup data is available or up-to-date in different regions5. Backup can also have longer recovery time and higher cost than geo-redundancy5. Reference: Use geo-redundancy to design highly available applications; Geo Redundancy Explained | Cloudify; Georedundancy - Open Telekom Cloud; Why geo-redundancy for cloud infrastructure is a 'must have'; Geo-Redundancy: Why Is It So Important? | Unitrends.
質問 # 64
A software developer wants to ensure a packaged application can be deployed in different environments without modifying anything but the application settings. The developer creates an image and provides instructions for the systems administrator to use for deployment. This is an example of:
- A. application versioning.
- B. deployment automation.
- C. containerization.
- D. source code control.
正解：C
質問 # 65
A web application was deployed, and files are available globally to improve user experience. Which of the
following technologies is being used?
- A. VDI
- B. CDN
- C. API
- D. SAN
正解：B
質問 # 66
Which of the following BEST represents a successful presentation to a customer of the working result of a new cloud feature?
- A. Feasibility study
- B. Proof of concept
- C. Benchmark
- D. Baseline
正解：B
解説：
A proof of concept (PoC) is a way to demonstrate that a new cloud feature is feasible and works as intended. A PoC is usually limited to the technical requirements of the feature and does not involve the user interface or user feedback. A PoC is used to show the customer the working result of the new cloud feature and to convince them to adopt the solution12. A PoC is different from a benchmark, which is a measure of the performance or quality of a system or product. A PoC is also different from a baseline, which is a reference point or standard for comparison. A PoC is also different from a feasibility study, which is an analysis of the viability and benefits of a project or idea3. Reference: CompTIA Cloud Essentials+ Certification Study Guide, Second Edition (Exam CLO-002), Chapter 5: Cloud Service Selection, pages 133-134.
質問 # 67
Which of the following organizations are MOST liking to consider confidentiality requirements before implementing a backup and disaster recovery cloud solution?
- A. A hospital and outpatient facility
- B. An advertising company
- C. A public library
- D. A recreational park district
正解：A
質問 # 68
An organization's servers are experiencing performance degradation from oversubscription of memory in the
virtual environment and exhausted physical RAM.
Which of the following cloud computing characteristics would BEST address the issue?
- A. Pay-as-you-go
- B. Availability
- C. Elasticity
- D. Self-service
正解：C
質問 # 69
Which of the following should be considered to ensure the availability of data that is accessed across multiple sites? (Choose two.)
- A. Geo-redundancy
- B. Zones
- C. Provisioning
- D. Backup
- E. Auto-scaling
- F. Locality
正解：A、D
解説：
Geo-redundancy and backup are two methods that can ensure the availability of data that is accessed across multiple sites. Geo-redundancy is the practice of storing data in more than one geographic location, such as different regions, countries, or continents. This can improve the data availability by reducing the impact of natural disasters, network failures, or malicious attacks that may affect one site. Geo-redundancy can also improve the data performance by allowing users to access the data from the nearest or fastest site. Backup is the process of creating and storing copies of data that can be used to restore the original data in case of data loss, corruption, or deletion. Backup can ensure the data availability by providing a way to recover the data from a previous state, such as before a hardware failure, software error, or human error. Backup can also protect the data from accidental or intentional modifications that may compromise its integrity or security.
Geo-redundancy and backup are different from other options, such as auto-scaling, provisioning, locality, and zones. Auto-scaling is the ability of a cloud service to automatically adjust the amount of resources allocated to a workload based on the demand or usage. Provisioning is the process of allocating and configuring the resources needed to run a cloud service or application. Locality is the principle of storing data close to where it is used, such as in the same region, country, or jurisdiction. Zones are logical or physical subdivisions of a cloud region that provide isolation and redundancy for the cloud resources. While these options may also affect the data availability, they do not directly address the data access across multiple sites, which is the focus of the question. Reference: Extending a Datastore Across Two Sites with Stretched Clusters, SQL Server Multi-Subnet Clustering - SQL Server Always On, What Is a Distributed Database? {Features, Benefits & Drawbacks}, Cloud Computing Availability - CompTIA Cloud Essentials+ (CLO-002) Cert Guide
質問 # 70
Which of the following services would restrict connectivity to cloud resources?
- A. Intrusion detection system
- B. Firewall
- C. VPN
- D. Security lists
正解：B
解説：
A security list is a virtual firewall used to control traffic at the packet level.
質問 # 71
A cloud administrator needs to ensure as much uptime as possible for an application. The application has two database servers. If both servers go down simultaneously, the application will go down. Which of the following must the administrator configure to ensure the CSP does not bring both servers down for maintenance at the same time?
- A. Backups
- B. Replication
- C. Autoscaling
- D. Availability zones
正解：D
解説：
Availability zones are logical data centers within a cloud region that are isolated and independent from each other. Availability zones have their own power, cooling, and networking infrastructure, and are connected by low-latency networks. Availability zones help to ensure high availability and fault tolerance for cloud applications by allowing customers to deploy their resources across multiple zones within a region. If one availability zone experiences an outage or maintenance, the other zones can continue to operate and serve the application12 To ensure the CSP does not bring both servers down for maintenance at the same time, the cloud administrator must configure the application to use availability zones. The administrator can deploy the two database servers in different availability zones within the same region, and enable replication and synchronization between them. This way, the application can access either server in case one of them is unavailable due to maintenance or failure. The administrator can also use load balancers and health checks to distribute the traffic and monitor the status of the servers across the availability zones34 Backups are not the best option to ensure the CSP does not bring both servers down for maintenance at the same time, because backups are copies of data that are stored in another location for recovery purposes. Backups can help to restore the data in case of data loss or corruption, but they do not provide high availability or fault tolerance for the application. Backups are usually performed periodically or on-demand, rather than continuously. Backups also require additional storage space and bandwidth, and may incur additional costs.
Autoscaling is not the best option to ensure the CSP does not bring both servers down for maintenance at the same time, because autoscaling is a feature that allows customers to scale their cloud resources up or down automatically, based on predefined conditions such as traffic or utilization levels. Autoscaling can help to optimize the performance and costs of the application, but it does not guarantee high availability or fault tolerance for the application. Autoscaling may not be able to scale the resources fast enough to handle sudden spikes or drops in demand, and it may also introduce additional complexity and overhead for managing the resources.
Replication is not the best option to ensure the CSP does not bring both servers down for maintenance at the same time, because replication is a process of copying and synchronizing data across multiple locations or devices. Replication can help to improve the availability and consistency of the data, but it does not prevent the CSP from bringing both servers down for maintenance at the same time. Replication also depends on the availability and connectivity of the locations or devices where the data is replicated, and it may also increase the network traffic and storage requirements.
質問 # 72
Which of the following cloud services would be used to rent hardware, computing and network space, and storage over the Internet?
- A. IaaS
- B. PaaS
- C. XaaS
- D. SaaS
正解：A
質問 # 73
A business analyst at a large multinational organization has been tasked with checking to ensure an application adheres to GDPR rules. Which of the following topics would be BEST for the analyst to research?
- A. Data integrity
- B. Industry-based requirements
- C. ISO certification
- D. Regulatory concerns
正解：C
解説：
Right-sizing compute resource instances is the process of matching instance types and sizes to workload performance and capacity requirements at the lowest possible cost. It's also the process of identifying opportunities to eliminate or downsize instances without compromising capacity or other requirements, which results in lower costs and higher efficiency1. Right-sizing is a key mechanism for optimizing cloud costs, but it is often ignored or delayed by organizations when they first move to the cloud. They lift and shift their environments and expect to right-size later. Speed and performance are often prioritized over cost, which results in oversized instances and a lot of wasted spend on unused resources2.
Right-sizing compute resource instances is the best action that the analyst should consider to lower costs and improve efficiency, as it can help reduce the amount of resources and money spent on instances that operate at a fraction of the full processing capacity. Right-sizing can also improve the performance and reliability of the instances by ensuring that they have enough resources to meet the workload demands. Right-sizing is an ongoing process that requires continuous monitoring and analysis of the instance usage and performance metrics, as well as the use of tools and frameworks that can simplify and automate the right-sizing decisions1.
Consolidating into fewer instances, using spot instances, or negotiating better prices on the company's reserved instances are not the best actions that the analyst should consider to lower costs and improve efficiency, as they have some limitations and trade-offs compared to right-sizing. Consolidating into fewer instances can reduce the number of instances, but it does not necessarily optimize the type and size of the instances. Consolidating can also introduce performance and availability issues, such as increased latency, reduced redundancy, or single points of failure3. Using spot instances can reduce the cost of instances, but it also introduces the risk of interruption and termination, as spot instances are subject to fluctuating prices and availability based on the supply and demand of the cloud provider4. Negotiating better prices on the company's reserved instances can reduce the cost of instances, but it also requires a long-term commitment and upfront payment, which reduces the flexibility and scalability of the cloud environment5. Reference: Right Sizing - Cloud Computing Services; The 6-Step Guide To Rightsizing Your Instances - CloudZero; Consolidating Cloud Services: How to Do It Right | CloudHealth by VMware; Spot Instances - Amazon Elastic Compute Cloud; Reserved Instances - Amazon Elastic Compute Cloud.
質問 # 74
A small software development startup is looking at the cloud as a way to quickly deploy and interconnect a large number of servers. The startup will deploy a VPN and other dedicated servers to maintain control of the security configurations. Which of the following cloud offerings is best suited for the startup?
- A. IaaS
- B. BPaaS
- C. PaaS
- D. SaaS
正解：D
質問 # 75
Which of the following policies dictates when to grant certain read/write permissions?
- A. Security
- B. Communications
- C. Access control
- D. Department-specific
正解：C
質問 # 76
Which of the following can a company's IT department implement to minimize the direct cost of an IaaS cloud solution?
- A. Substitute employee's desktop computers with thin clients.
- B. Trim the size of the company's IT staff.
- C. Reduce the number of provisioned servers.
- D. Decrease the company's Internet bandwidth.
正解：A
質問 # 77
In cloud computing, the ability to scale resources on demand, benefits the business in which of the following ways?
- A. Allowing a third party to manage service delivery ensures lower staffing costs.
- B. Shorter contracts and less capital expenses reduce expenditures to the IT budget.
- C. It is more cost effective to pay for what is needed rather than pay for peak demand upfront.
- D. Fewer in-house servers lower the power consumption of the datacenter.
正解：C
質問 # 78
An organization's servers are experiencing performance degradation from oversubscription of memory in the virtual environment and exhausted physical RAM.
Which of the following cloud computing characteristics would BEST address the issue?
- A. Pay-as-you-go
- B. Availability
- C. Elasticity
- D. Self-service
正解：C
質問 # 79
An organization determines it cannot go forward with a cloud migration due to the risks involved. Which of the following types of risk response does this describe?
- A. Avoidance
- B. Acceptance
- C. Mitigation
- D. Transference
正解：A
質問 # 80
An organization plans to keep three of its cloud servers online for another nine months and a fourth server online for a year. The current pricing is $200 per month per server. The cloud provider announced the sale price of $1,500 per year per reserved instance.
Which of the following represents the cost savings by converting all four of the cloud servers to reserved instances?
- A. $900
- B. $3,600
- C. $1,800
- D. $2,400
正解：C
質問 # 81
An online retailer wants to ensure its inventory for the holiday season is correct. The company does not have a large IT infrastructure or staff to collect and analyze sales information, customer analytics, marketing information, or trends. Which of the following cloud services will help the company analyze these metrics without a large investment in human capital?
- A. Microservices
- B. Containerization
- C. Blockchain
- D. Big Data
正解：D
解説：
Big data is a term that describes the large volume, variety, and velocity of data that is generated by various sources, such as social media, e-commerce, sensors, etc. Big data can be analyzed using cloud-based tools and techniques, such as machine learning, artificial intelligence, or data analytics, to gain insights and make informed decisions. Big data can help an online retailer to understand its customers' behavior, preferences, trends, and feedback, as well as optimize its inventory, marketing, pricing, and sales strategies. Big data can also help the retailer to reduce costs, improve efficiency, and increase customer satisfaction and loyalty. Big data is a cloud service that does not require a large investment in human capital, as the cloud provider can offer scalable, flexible, and secure solutions that can handle the complexity and volume of data. Reference: CompTIA Cloud Essentials+ Certification Exam Objectives1, CompTIA Cloud Essentials+ Study Guide, Chapter 5: Cloud Native Applications and Cloud Data Analytics2, CompTIA Cloud Essentials+: Cloud Native Apps & Cloud Data Analytics3
質問 # 82
A small business is engaged with a cloud provider to migrate from on-premises CRM software. The contract includes fixed costs associated with the product. Which of the following variable costs must be considered?
- A. Time to market
- B. Human capital
- C. BYOL costs
- D. Operating expenditure fees
正解：D
解説：
Operating expenditure (OPEX) fees are variable costs that depend on the usage of cloud services, such as storage, bandwidth, compute, or licensing fees. OPEX fees are typically charged by the cloud provider on a monthly or pay-as-you-go basis. A small business that migrates from on-premises CRM software to a cloud provider must consider the OPEX fees as part of the total cost of ownership (TCO) of the cloud solution. OPEX fees can vary depending on the demand, performance, availability, and scalability of the cloud service. Reference: CompTIA Cloud Essentials+ Certification Exam Objectives1, CompTIA Cloud Essentials+ Study Guide, Chapter 2: Business Principles of Cloud Environments
質問 # 83
A financial services company plans to move its existing CRM system into the cloud. The current system hosts 50 million customers. Which of the following steps should be done FIRST for moving this application into the cloud?
- A. Perform security testing of the application to ensure that there are no new security vulnerabilities being introduced.
- B. Perform testing to confirm that all the customer data can be mapped/migrated during the allocated change window.
- C. Perform a physical site assessment on where the application is hosted to ensure adequate controls are in place.
- D. Communicate with customers that they will be moving to a new CRM system which will be hosted in the cloud.
正解：A
質問 # 84
A company with a variable number of employees would make good use of the cloud model because of:
- A. collaboration
- B. multifactor authentication
- C. subscription services
- D. self-service
正解：C
解説：
A company with a variable number of employees would make good use of the cloud model because of subscription services. Subscription services are a type of cloud pricing model that allows customers to pay a fixed fee for a certain amount of cloud resources or services for a specific period of time, such as monthly or annually. Subscription services can offer benefits such as predictable costs, scalability, flexibility, and reduced upfront investment. A company with a variable number of employees can use subscription services to adjust the cloud resources or services according to the changing demand and size of the workforce, without wasting money on unused capacity or paying extra fees for exceeding the limit. Subscription services can also enable the company to access the latest cloud technologies and features without having to purchase or maintain them. The other options are not the best reasons for a company with a variable number of employees to use the cloud model. Multifactor authentication is a security method that requires users to provide two or more pieces of evidence to verify their identity, such as a password, a code, or a biometric factor. Multifactor authentication can enhance the security of the cloud services, but it is not related to the number of employees. Self-service is a cloud characteristic that allows users to provision, manage, and terminate cloud resources or services on demand, without requiring the intervention of the cloud provider or the IT department. Self-service can improve the efficiency and agility of the cloud services, but it is not related to the number of employees. Collaboration is a cloud benefit that enables users to work together on projects, documents, or tasks using cloud-based tools and platforms, such as online file sharing, video conferencing, or project management. Collaboration can increase the productivity and innovation of the cloud services, but it is not related to the number of employees. Reference: CompTIA Cloud Essentials+ Certification Study Guide, Second Edition (Exam CLO-002), Chapter 1: Cloud Principles and Design, Section 1.2: Cloud Computing Concepts, p. 26-27.
質問 # 85
Which of the following is the logical progression in internal private cloud adoption?
- A. Virtualize, Paas, IaaS, and SaaS
- B. IaaS, PaaS, Virtualize, and SaaS
- C. SaaS, PaaS, IaaS, and Virtualize
- D. Virtualize, IaaS, PaaS, and SaaS
正解：D
解説：
http://www.slideshare.net/JenniferRomanoBergstrom/introduction-to-web-survey-usability-design- and-testing?next_slideshow=1
質問 # 86
A business analyst is reviewing a software upgrade plan. The plan mentions the term "hash" value. Which of the following BEST represents what this term implies?
- A. Availability of data
- B. Confidentiality of data
- C. Integrity of data
- D. Non-repudiation of data
正解：C
解説：
A hash value is a unique code that is generated by applying a mathematical algorithm to a piece of data. Hash values are used to ensure the integrity of data, which means that the data has not been altered or corrupted in any way. By comparing the hash value of the original data with the hash value of the received or stored data, one can verify that the data is identical and has not been tampered with. Hash values can also be used for digital signatures, which provide non-repudiation of data, meaning that the sender or owner of the data cannot deny its authenticity or origin. However, hash values alone do not provide confidentiality or availability of data, which are other aspects of data security. Confidentiality means that the data is protected from unauthorized access or disclosure, and availability means that the data is accessible and usable when needed. Hash values do not encrypt or hide the data, nor do they prevent data loss or downtime. Reference: CompTIA Cloud Essentials+ CLO-002 Study Guide, Chapter 5: Cloud Security Principles, Section 5.2: Data Security Concepts, Page 1471 and Ensuring Data Integrity with Hash Codes - .NET | Microsoft Learn
質問 # 87
Which of the following is a valid mechanism for achieving interoperability when extracting and pooling data among different CSPs?
- A. Use continuous integration/continuous delivery.
- B. Recommend the use of the same CLI client.
- C. Adopt the use of communication via APIs.
- D. Deploy regression testing to validate pooled data.
正解：C
解説：
APIs (application programming interfaces) are sets of rules and protocols that enable communication and data exchange between different applications or systems. APIs can facilitate interoperability when extracting and pooling data among different CSPs (cloud service providers) by allowing standardized and secure access to the data sources and services offered by each CSP. APIs can also enable automation, scalability, and customization of cloud solutions.
質問 # 88
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