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IBM C1000-172 認定試験の出題範囲：
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質問 # 86
What industry standard encryption protocol is used for the IBM Cloud Block Storage?
- A. Industry-Standard ASE-526 encryption
- B. Industry-Standard AES-256 encryption
- C. Industry-Standard SSL HTTP 64 encryption
- D. Industry-Standard SSL HTTPS 32 encryption
正解：B
質問 # 87
A banking customer has been advised that they should implement a Transit Gateway to provide connectivity between two VPCs running in IBM Cloud.
What are two advantages of this strategy compared to linking the two via the internet?
- A. The Transit Gateway is an enabler for Hybrid Cloud, allowing on-premises data warehouses to pull data from the VPC when scheduled
- B. There is a financial saving on data transfer rates to and from servers in every IBM Cloud data center across the private network, by avoiding bandwidth fees
- C. The network traffic takes fewer hops, so there are fewer points of failure where network traffic might get dropped or disrupted
- D. Such connections provide blockchain native services and will support shared ledger services
- E. Advanced encryption options are available enabling a greater degree of regulatory compliance for the workload
正解：B、C
質問 # 88
Which IBM Cloud database service supports both relational and non-relational data querying?
- A. Databases for Redis
- B. Databases for Db2
- C. Databases for PostgreSQL
- D. Databases for etcd
正解：B
解説：
Databases for Db2 is an IBM Cloud database service that supports both relational and non-relational data querying.
IBM Cloud Databases for Db2: Db2 on IBM Cloud is a managed database service that supports both relational and non-relational models. It provides JSON and SQL querying capabilities, allowing users to store and retrieve data in a flexible manner. This makes it capable of handling structured, semi-structured, and unstructured data, thus supporting both relational and non-relational data formats.
Support for Multiple Data Types: Db2's multi-model database capabilities enable the execution of SQL queries on relational data and the storage/retrieval of JSON documents, effectively allowing it to function in both relational and non-relational scenarios.
Reference from IBM Cloud Professional Architect Materials:
According to IBM's documentation on IBM Cloud Databases for Db2, it supports a broad range of workloads and use cases, including transactional (relational) and operational (non-relational) workloads, making it suitable for both SQL and NoSQL data models.
The other options are incorrect because:
A . Databases for Redis is a key-value store optimized for in-memory data.
C . Databases for PostgreSQL is strictly a relational database.
D . Databases for etcd is a key-value store primarily used for configuration management.
質問 # 89
An organization needs to encrypt IBM Cloud Kubernetes Service secrets and the etcd store with their own root keys. The encryption should occur on FIPS 140-2 Level 4-certified hardware. Which service should this organization use?
- A. IBM Cloud Key Protect
- B. IBM Cloud Managed Encryption Services
- C. IBM Cloud Hyper Protect Crypto Services
- D. IBM Cloud Secrets Manager
正解：C
解説：
IBM Cloud Hyper Protect Crypto Services is the correct service to use for encrypting IBM Cloud Kubernetes Service secrets and the etcd store with the organization's own root keys on FIPS 140-2 Level 4-certified hardware.
IBM Cloud Hyper Protect Crypto Services: This service provides a highly secure key management system and supports encryption operations using FIPS 140-2 Level 4-certified hardware. It ensures that the keys used to encrypt data never leave the secure boundary of the Hardware Security Module (HSM), which meets the highest level of security certification (Level 4).
Use Case Suitability: For organizations needing to meet stringent regulatory and compliance requirements (such as those demanding FIPS 140-2 Level 4 certification), Hyper Protect Crypto Services offers the necessary security controls to protect Kubernetes secrets and other sensitive data.
Reference from IBM Cloud Professional Architect Materials:
The IBM documentation on Hyper Protect Crypto Services confirms that it uses FIPS 140-2 Level 4-certified hardware, making it the correct choice for this requirement.
Other options are incorrect:
B . IBM Cloud Secrets Manager and C. IBM Cloud Key Protect do not utilize FIPS 140-2 Level 4-certified hardware.
D . IBM Cloud Managed Encryption Services is not a specific service related to the required encryption hardware.
質問 # 90
Monitoring data can be considered sensitive by some clients. How can a client configure IBM Cloud Monitoring so that sensitive monitoring data is not traveling across the public internet?
- A. Use only private endpoints to store monitoring data in IBM Cloud Object Storage
- B. Ensure that all resources being monitored are in the same region as the IBM Cloud monitoring instance
- C. Encrypt all monitoring data with a user-controlled key from Key Protect or Hyper Protect Crypto Services
- D. Configure the monitoring instance and monitoring agents to only use private endpoints
正解：D
解説：
To ensure that sensitive monitoring data does not travel across the public internet, a client can configure the monitoring instance and monitoring agents to only use private endpoints.
IBM Cloud Monitoring Private Endpoints: IBM Cloud Monitoring with Sysdig allows users to configure their monitoring instance and agents to communicate only over private endpoints. This configuration ensures that monitoring data remains within IBM's private network, thus avoiding exposure to the public internet.
Private Endpoints for Data Security: Using private endpoints is crucial for clients who require that their sensitive data, such as monitoring metrics, never leave the secure IBM Cloud network, enhancing overall security.
Reference from IBM Cloud Professional Architect Materials:
IBM Cloud documentation on Configuring Private Endpoints for IBM Cloud Monitoring confirms that monitoring data can be restricted to private endpoints to avoid exposure to the public internet.
Other options are incorrect:
A . Encrypt all monitoring data with a user-controlled key from Key Protect or Hyper Protect Crypto Services does not prevent data from traveling across the public internet.
C . Ensure that all resources being monitored are in the same region as the IBM Cloud monitoring instance is a good practice for performance but does not specifically ensure that data doesn't travel over the public internet.
D . Use only private endpoints to store monitoring data in IBM Cloud Object Storage is related to storage, not monitoring data transmission.
Therefore, the correct answer is B. Configure the monitoring instance and monitoring agents to only use private endpoints.
質問 # 91
How does a monitoring agent properly authenticate with the IBM Cloud Monitoring service it is sending metrics to?
- A. By using the access key provided when provisioning the monitoring service
- B. By using a service instance authorization
- C. By using a trusted profile
- D. By using an API key from the master cloud account owner
正解：B
解説：
In IBM Cloud, a monitoring agent properly authenticates with the IBM Cloud Monitoring service by using a service instance authorization. This approach allows secure interaction between the monitoring agent and the monitoring service by using identity and access management (IAM) policies and authorizations associated with a service instance.
Service instance authorizations grant specific permissions to services, enabling them to authenticate and interact with other services or resources securely. For IBM Cloud Monitoring, the agent uses the service instance authorization to send metrics to the monitoring service, ensuring that the communication is authenticated and authorized without relying on hard-coded credentials or API keys tied to individual users.
The service instance authorization method is recommended because it is aligned with best practices for securing services in cloud environments, offering a centralized and controlled way to manage permissions.
IBM Cloud Documentation Reference:
IBM Cloud Monitoring: Setting up and Configuring Agents
Service Authorization for IBM Cloud Services
質問 # 92
Which technology does IBM Cloud Direct Link use to achieve high availability with two connections?
- A. Using Equal-Cost MultiPath (ECMP) with diversity
- B. Using Equal-Path MultiCost (EPMC) with diversity
- C. Using GRE Tunneling
- D. Using VPN connections with diversity
正解：A
質問 # 93
Which programming languages are supported by IBM Cloud Analytics Engine for developing big data analytics?
- A. Scala, Python, and R
- B. C, C++, Java, Scala, Python, and R
- C. Java, Scala, Python, and R
- D. Python and R only
正解：C
解説：
IBM Cloud Analytics Engine supports several programming languages for developing big data analytics. The correct answer is Java, Scala, Python, and R.
IBM Cloud Analytics Engine: This service provides a fully managed Apache Spark service designed to handle big data analytics. Apache Spark, the core engine behind IBM Cloud Analytics Engine, supports multiple programming languages like Java, Scala, Python, and R to build, test, and deploy big data applications.
Supported Languages: According to the IBM Cloud Analytics Engine documentation, developers can use Java, Scala, Python, and R to interact with Spark. This flexibility allows data scientists and engineers to use the language they are most comfortable with or that best suits their project requirements.
Why Other Options are Incorrect:
B . Scala, Python, and R is incomplete as it omits Java.
C . Python and R only is incorrect since it excludes both Java and Scala.
D . C, C++, Java, Scala, Python, and R is incorrect because C and C++ are not supported by Apache Spark in this context.
質問 # 94
What is the minimum number of servers an Event Stream cluster in IBM Cloud must be composed of?
- A. Two servers
- B. One
- C. Three servers
- D. Four servers in load balance
正解：C
質問 # 95
What describes a feature of IBM Cloud Transit Gateway when interconnecting multiple virtual private clouds (VPC)?
- A. Client designates which traffic remains within the private IBM Cloud backbone
- B. Provisions and defines connections between resources on the IBM Cloud network
- C. Provides private interconnectivity for on-premises workloads and the designated VPC
- D. Provides a decentralized hub for better regional connectivity and load balancing
正解：B
解説：
IBM Cloud Transit Gateway provides the ability to provision and define connections between resources on the IBM Cloud network.
IBM Cloud Transit Gateway: This service allows you to connect multiple Virtual Private Clouds (VPCs) and on-premises networks to a central gateway. It simplifies network management by providing a single entry point for interconnecting multiple resources across the IBM Cloud.
Connectivity Between Resources: By creating connections through the Transit Gateway, an organization can establish a scalable and flexible network architecture that integrates various cloud resources.
Reference from IBM Cloud Professional Architect Materials:
According to IBM documentation on IBM Cloud Transit Gateway, it provides centralized management and provisioning of connections across different IBM Cloud environments.
Other options are incorrect:
A . Client designates which traffic remains within the private IBM Cloud backbone is not specifically managed by the Transit Gateway.
B . Provides private interconnectivity for on-premises workloads and the designated VPC is more related to Direct Link.
D . Provides a decentralized hub for better regional connectivity and load balancing is incorrect since Transit Gateway is a centralized solution.
質問 # 96
What is one of IBM's Operational Responsibilities for managing the IBM Cloud Object Storage Service?
- A. Ensure data backup if necessary
- B. Provision and manage the VSIs required to serve the data using NFS
- C. Monitor and manage service health and availability
- D. Monitor and restore data backups
正解：C
質問 # 97
Which IBM Cloud service can be used to store and analyze data collected to identify the root causes of slowness?
- A. Databases for Redis
- B. Databases for Elasticsearch
- C. Cloudant
- D. Databases for etcd
正解：B
解説：
Elasticsearch is a powerful search and analytics engine commonly used to store, search, and analyze large volumes of data in real time. IBM Cloud's "Databases for Elasticsearch" service is specifically designed for this purpose, allowing users to ingest, search, and analyze log data or other large datasets to identify root causes of slowness or performance issues.
Why Databases for Elasticsearch? Elasticsearch is ideal for storing and analyzing logs due to its ability to quickly index and query large amounts of data. It provides powerful search capabilities, aggregations, and visualization tools that are well-suited for identifying performance bottlenecks and troubleshooting.
Comparison with Other Options:
A (Databases for etcd): Not used for analytics or identifying performance issues.
B (Databases for Redis): Primarily an in-memory data store, not suitable for complex data analysis.
D (Cloudant): A NoSQL database service optimized for web and mobile applications, but not primarily for analyzing log data.
Reference:
IBM Cloud Databases for Elasticsearch
IBM Cloud Architect Exam Study Guide
質問 # 98
Which two use cases for IBM Cloud Flow logs can be supported by a single collector?
- A. Collect data for all network interfaces in an IBM Cloud Classic infrastructure
- B. Collect data for all network interfaces in an IBM Cloud account
- C. Collect data for all network interfaces in an IBM Cloud region
- D. Collect data for all network interfaces in a subnet
- E. Collect data for a single network interface in a virtual server instance
正解：D、E
解説：
A single collector in IBM Cloud Flow logs can support the following two use cases:
Collect Data for a Single Network Interface in a Virtual Server Instance: IBM Cloud Flow logs can collect network traffic data specific to a single network interface, which allows detailed monitoring and analysis of traffic patterns and security incidents for that specific instance.
Collect Data for All Network Interfaces in a Subnet: A single collector can also be configured to gather data from all network interfaces in a given subnet. This provides a comprehensive view of the network traffic within that subnet, useful for monitoring, troubleshooting, and security analysis.
Reference from IBM Cloud Professional Architect Materials:
IBM documentation on IBM Cloud Flow Logs supports these use cases, showing how collectors can be set up to monitor specific network interfaces or entire subnets.
Other options are incorrect:
B . Collect data for all network interfaces in an IBM Cloud Classic infrastructure and C. Collect data for all network interfaces in an IBM Cloud region are too broad for a single collector.
D . Collect data for all network interfaces in an IBM Cloud account would require multiple collectors.
Therefore, the correct answers are A. Collect data for a single network interface in a virtual server instance and E. Collect data for all network interfaces in a subnet.
質問 # 99
A PR company is looking to move Windows applications quickly without changing architecture. The company requires physical isolation with regulatory benefit and greater quality of service with control of the software stack.
Which IBM Cloud option would meet these requirements?
- A. Power
- B. Virtual Servers
- C. z16
- D. Bare Metal Servers
正解：D
解説：
Bare Metal Servers on IBM Cloud provide the required physical isolation, regulatory benefits, and control over the software stack, making them ideal for moving Windows applications quickly without changing the architecture. Bare Metal Servers offer dedicated hardware resources, full control over the server environment, and the ability to configure and manage the software stack, meeting the company's needs for physical isolation and performance.
Why Bare Metal Servers? They provide the highest level of performance, security, and customization, including control over the operating system and applications, which is essential for regulatory compliance and quality of service.
Physical Isolation: Bare Metal Servers are single-tenant servers, meaning they are not shared with other customers, providing physical isolation required for specific regulatory needs.
Comparison with Other Options:
z16 (B) and Power (C) are specialized platforms for different workloads, not necessarily suited for general-purpose Windows applications.
Virtual Servers (D): Provide virtualization but do not offer the same level of control and physical isolation as Bare Metal Servers.
Reference:
IBM Cloud Bare Metal Servers
IBM Cloud Architect Exam Study Guide
質問 # 100
When using Application Load Balancer for VPC, what two methods are used for distributing traffic across the back-end application servers?
- A. Resource Based (Adaptive)
- B. Least connections
- C. Weighted Response Time
- D. Round-robin
- E. Fixed Weighting
正解：B、D
質問 # 101
A company wants to implement a disaster recovery strategy for their critical applications. They require a low recovery point objective (RPO) and recovery time objective (RTO) and have a limited budget. They are willing to tolerate some downtime during the recovery process.
Which DR strategy option would be most suitable for this scenario?
- A. Passive/Standby
- B. Active/Standby
- C. Active/Active
- D. Active/Passive
正解：B
質問 # 102
A company is looking to transform their three-tier application to cloud. The stack uses physical servers on-premises and will use virtual server instances (VSIs) on IBM Cloud. The company has also added global load balancing through Cloud Internet Services and a pair of Gateway Appliances to the environment.
What benefit does the global load balancer provide during transformation?
- A. Balances traffic across multiple clouds
- B. Allows traffic to simultaneously flow to both the on-premises bare metal servers and on-cloud VSIs
- C. Client can distribute traffic using weights to ramp up to the new environment
- D. Provides secure network connectivity between the existing environment and the new environment
正解：C
質問 # 103
What is a feature of IBM Cloud File Storage (Classic)?
- A. Fixed IOPS
- B. Jumbo Frames
- C. Volume Replication
- D. Adjustable Volumes
正解：C
解説：
Volume Replication is a feature of IBM Cloud File Storage (Classic).
IBM Cloud File Storage (Classic): This service provides block-level storage that can be provisioned with different performance tiers. Volume replication allows for synchronous replication of data across different availability zones within a region, ensuring high availability and disaster recovery.
Advantages of Volume Replication: By replicating data, IBM Cloud File Storage (Classic) offers enhanced data durability and continuity in case of an outage or failure at a single storage site.
Reference from IBM Cloud Professional Architect Materials:
According to IBM's documentation on File Storage, volume replication is one of the key features for enabling high availability.
Other options are incorrect:
A . Adjustable Volumes is not a primary feature of the classic version.
C . Jumbo Frames relates to networking, not storage.
D . Fixed IOPS contradicts the flexible performance tiers of IBM Cloud File Storage (Classic).
質問 # 104
An IT administrator is responsible for selecting the appropriate storage tier for a new application running on IBM Cloud Power Virtual Servers. They need to consider the workload's peak IOPS and the performance requirements. They are storing data for long-term archival purposes with a minimal I/O load and a peak IOPS requirement of 50. Which storage tier should they choose?
- A. Tier 5 storage
- B. Tier 1 storage
- C. Tier 2 storage
- D. Tier 3 storage
正解：A
解説：
For storing data for long-term archival purposes with a minimal I/O load and a peak IOPS requirement of 50, Tier 5 storage is the most appropriate choice.
Tier 5 Storage: This storage tier is designed for workloads with low performance and IOPS requirements, such as long-term data archival or infrequently accessed data. Tier 5 offers the lowest cost option and is ideal for scenarios where data is rarely accessed, and there is a minimal input/output operation per second (IOPS) requirement.
Workload Suitability: Given that the workload described involves minimal I/O load and a peak IOPS requirement of 50, Tier 5 provides an optimal balance between cost and the minimal performance needed for such an archival workload.
Reference from IBM Cloud Professional Architect Materials:
IBM documentation on IBM Cloud Storage Tiers indicates that Tier 5 storage is suitable for long-term data storage and archival, where performance requirements are minimal.
Other options are incorrect:
B . Tier 2 storage, C. Tier 3 storage, and D. Tier 1 storage provide higher performance than necessary for the described archival workload, resulting in potentially unnecessary costs.
質問 # 105
A customer RFP is requesting a solution to run a scalable, elastic, and managed analytics focused database with in-memory capabilities.
Which service should be included in the response?
- A. Mongo Cluster Service
- B. SQL Query
- C. Analytics Engine
- D. DB2 Warehouse on Cloud
正解：D
質問 # 106
For File Storage Configuration, what are jumbo frames?
- A. Network Frames that manage payload communication
- B. Ethernet Frames used to manage payload configuration
- C. Ethernet Frames with a large payload that is used on local area networks
- D. Local Virtual Frames that are used for network communication
正解：C
質問 # 107
How does a client ensure high availability for master nodes in a Red Hat OpenShift on IBM Cloud cluster?
- A. Master node replicas are automatically spread evenly across zones
- B. Users must deploy the application nodes evenly across zones, then IBM deploys the master nodes in the same way
- C. Master nodes have six replicas for high availability
- D. Users can decide how master nodes should be distributed across zones used in the cluster
正解：A
質問 # 108
A VPC has been created with a single subnet. Virtual server instances have been deployed on the subnet that have different functions which support a production application.
The security team has now said that they want to ensure that network traffic between the different server types can be controlled.
How can this be achieved?
- A. Create multiple access control lists with rules that satisfy the security team's requirements and associate each VSI to the respective ACL
- B. Create a VPC load balancer and place each server type into its own back-end pool, then create Layer-7 routing policies that restrict network traffic flowing between the different pools
- C. Use a Hardware Security Module to create advanced network routing tables that ensure traffic does not route between server types, as per the security team's wishes
- D. Create security groups for the different server types with inbound and outbound rules that satisfy the security team, into which the VSIs can be placed
正解：C
質問 # 109
A customer has defined a requirement to enable all virtual server instances in the proposed VPC to be able to access automatic operating system updates via the Internet.
What is required to provide this functionality?
- A. A subscription to the IBM Auto Update proxy service
- B. Each server must have a Floating IP address
- C. Each subnet must have a Public Gateway
- D. The pre-defined Automatic Updates Security Group must be enabled
正解：B
質問 # 110
An architect is tasked with determining the resiliency option for an application where the data must remain in-country and locally restricted.
Which IBM Cloud Object Storage resiliency option is best for this use case?
- A. Single Data Center
- B. Cross Zone
- C. Cross Region
- D. Multizone
正解：A
解説：
The best IBM Cloud Object Storage resiliency option for a use case where data must remain in-country and locally restricted is Single Data Center.
Single Data Center: This option ensures that all data is stored within a single geographic location, which complies with regulations or requirements that mandate data residency within a specific country. By using a single data center, the data remains locally restricted.
Data Residency Requirements: When an application has strict regulatory or compliance requirements that specify data must not leave the country, the Single Data Center option ensures that data does not cross geographic boundaries.
Reference from IBM Cloud Professional Architect Materials:
IBM documentation on IBM Cloud Object Storage Resiliency Options states that the Single Data Center option is best suited for scenarios where data residency is a concern.
Other options are incorrect:
A . Cross Zone, C. Cross Region, and D. Multizone involve data being stored across multiple locations or regions, which would not meet the requirement of keeping the data locally restricted.
質問 # 111
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