Exam4Tests C1000-138 Real Exam Question Answers Updated [Jan 08, 2025]
Easily To Pass New IBM C1000-138 Dumps with 137 Questions
NEW QUESTION # 44
What describes an IBM Cloud VPN for virtual private cloud (VPC) service security feature?
- A. Passive Peer Detection
- B. Post-shared key
- C. Perfect Forward Secrecy (PFS)
- D. RSA key exchange
Answer: C
Explanation:
A security feature of IBM Cloud VPN for virtual private cloud (VPC) service is Perfect Forward Secrecy (PFS).
Perfect Forward Secrecy (PFS): PFS ensures that the compromise of one session key does not compromise the confidentiality of past sessions. It provides additional security for encrypted communications by generating unique keys for each session, making it a critical feature for VPN services.
IBM Cloud VPN for VPC: This service utilizes PFS to secure communication between the cloud environment and external networks, ensuring high levels of data protection and encryption.
Reference from IBM Cloud Professional Architect Materials:
The IBM documentation on IBM Cloud VPN describes PFS as a fundamental security feature for protecting data transmitted over the network.
Other options are incorrect:
A . Passive Peer Detection is not a security feature.
B . RSA key exchange is a cryptographic algorithm but does not describe a VPN-specific security feature.
D . Post-shared key is not a relevant term.
NEW QUESTION # 45
What role does an API Product Manager play in administering applications and subscriptions?
- A. Overseeing the subscription lifecycle and ensuring compliance with plan limits
- B. Debugging application code for consumers
- C. Restricting consumers to using only one application
- D. Directly developing consumer applications
Answer: A
NEW QUESTION # 46
In managing the API Gateway extensions and global policies, what actions can a Provider Organization Owner take?
- A. Define and apply global policies for API traffic handling
- B. Extend the gateway's capabilities with custom-developed plugins
- C. Manually inspect each API request and response for compliance
- D. Install new operating systems on gateway servers
Answer: A,B
NEW QUESTION # 47
Which programming languages are supported by IBM Cloud Analytics Engine for developing big data analytics?
- A. Python and R only
- B. Java, Scala, Python, and R
- C. C, C++, Java, Scala, Python, and R
- D. Scala, Python, and R
Answer: B
Explanation:
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.
NEW QUESTION # 48
When configuring API security resources, which of the following can a Provider Organization Owner set up? (Select two)
- A. A user registry for authenticating API consumers
- B. TLS profiles for secure API communications
- C. Firewall rules at the network perimeter far API protection
- D. OAuth 2.0 providers for secure access control
Answer: B,D
NEW QUESTION # 49
Which feature optimizes the work of load balancers on IBM Cloud?
- A. Global Load Balancer
- B. Standard Failover
- C. Citrix NetScaler VPX
- D. Traffic Steering
Answer: D
Explanation:
Traffic Steering is a feature in IBM Cloud that optimizes the work of load balancers by directing traffic to the most appropriate resources based on predefined criteria, such as geographic location, resource availability, or other custom rules. This feature is crucial for optimizing application performance, reducing latency, and ensuring high availability across different regions and data centers.
IBM Cloud Load Balancer Overview: The IBM Cloud Load Balancer offers several advanced capabilities, including Traffic Steering, which enables intelligent routing of client requests. Traffic Steering can be configured to direct traffic to different backend servers or pools based on various policies like weighted round-robin, geographic proximity, or failover conditions. This optimizes the distribution of workloads and enhances the reliability and responsiveness of applications deployed on the IBM Cloud.
Importance of Traffic Steering: Traffic Steering is particularly beneficial in scenarios involving multi-region deployments. It ensures that user requests are served by the closest or most responsive data center, thereby minimizing response times and improving the end-user experience. It also enables flexible routing based on business logic or dynamic conditions, such as sudden surges in traffic or failures in specific regions.
Global Load Balancer Role: While the Global Load Balancer (Option D) is used for distributing traffic across multiple regions, Traffic Steering is a specific feature within the load balancing suite that controls how traffic is managed. Traffic Steering complements the Global Load Balancer by providing fine-grained control over traffic distribution strategies, enabling more efficient utilization of resources.
Reference:
IBM Cloud Load Balancer Documentation
IBM Cloud Architect Exam Study Guide
IBM Cloud Traffic Steering
NEW QUESTION # 50
In the context of API governance, what is a crucial aspect of the various lifecycle stages of APIs and Products in IBM API Connect?
- A. Mandatory public exposure of all APIs to foster transparency
- B. Strict version control of APIs without backward compatibility
- C. Integration with third-patty governance tools for compliance checking
- D. Automated approval processes for API lifecycle transitions
Answer: D
NEW QUESTION # 51
An architect recently deployed a multizone Red Hat OpenShift cluster on IBM Cloud. The architect wants to ensure that if one data center becomes unavailable, the service will spin up worker nodes in another data center without human intervention.
Which functionality enables this requirement?
- A. Init-node script automation
- B. Load balancing
- C. Network forwarding
- D. Autoscaling
Answer: D
Explanation:
Autoscaling enables automatic scaling of resources in response to demand or failure events, ensuring that a multizone Red Hat OpenShift cluster on IBM Cloud can dynamically spin up worker nodes in another data center if one becomes unavailable. Autoscaling allows for maintaining service availability without human intervention, thus achieving the required resiliency.
How Autoscaling Works: Autoscaling automatically adjusts the number of worker nodes in a cluster based on predefined metrics such as CPU usage, memory usage, or other health checks. In the event of a zone failure, it can scale out to other available zones to maintain service continuity.
Importance of Autoscaling for Resiliency: By automatically provisioning new resources when needed, autoscaling reduces the risk of downtime and ensures consistent application performance.
Comparison with Other Options:
A (Load balancing): Distributes traffic but does not scale resources.
B (Network forwarding): Related to network routing, not scaling resources.
D (Init-node script automation): Involves initial setup, not dynamic scaling.
Reference:
IBM Cloud Kubernetes Service Autoscaling
IBM Cloud OpenShift Documentation
IBM Cloud Architect Exam Study Guide
NEW QUESTION # 52
An organization is using IBM Log Analysis to manage operating system logs, application logs, and platform logs in IBM Cloud. A developer discovered their Red Hat OpenShift on IBM Cloud instance is not being captured in the service.
What could be a reason Log Analysis is missing the Red Hat OpenShift on IBM Cloud instance logs?
- A. The developer needs at least editor IAM role to the Log Analysis instance
- B. The administrator needs at least reader access to the Red Hat OpenShift instance
- C. The logging agents were not created and deployed to this OpenShift instance
- D. The Red Hat OpenShift on IBM Cloud instance is running in a different region from the Log Analysis instance
Answer: C
Explanation:
The likely reason IBM Log Analysis is missing the Red Hat OpenShift on IBM Cloud instance logs is that the logging agents were not created and deployed to this OpenShift instance.
IBM Log Analysis with Sysdig: To collect logs from a Red Hat OpenShift cluster, specific logging agents must be deployed on the cluster. These agents are responsible for forwarding logs to the IBM Log Analysis service.
Missing Logs Due to Missing Agents: If the agents are not deployed, the service will not capture logs from the cluster, resulting in missing log data from that instance.
Reference from IBM Cloud Professional Architect Materials:
IBM documentation on Setting up Log Analysis explains the requirement of deploying logging agents to the respective resources to ensure log collection.
Other options are incorrect:
A . The developer needs at least editor IAM role does not affect the log capture.
B . The administrator needs at least reader access does not address the missing agents.
C . The instance running in a different region does not prevent log capture if agents are configured correctly.
NEW QUESTION # 53
How do the lifecycle stages of APIs impact their management by an API Product Manager?
- A. APIs in the "Create" stage require more marketing efforts
- B. APIs in the "Deprecate" stage should be aggressively sold
- C. Once an API reaches the "Publish" stage, it no longer requires oversight
- D. Management strategies vary significantly between stages to align with business goals
Answer: D
NEW QUESTION # 54
Why does IBM Cloud Analytics Engine decouple compute and storage?
- A. Compute can be scaled but storage costs are fixed
- B. To achieve scale independently and control costs
- C. Storage can be scaled but not compute
- D. Compute can be scaled but not storage
Answer: B
Explanation:
IBM Cloud Analytics Engine decouples compute and storage to provide independent scaling and cost management capabilities. This approach allows organizations to scale compute resources (such as CPU and memory) separately from storage resources, optimizing both performance and cost.
Independent Scaling: Decoupling compute and storage means that users can scale the computational power (e.g., number of nodes, processing capabilities) independently of the storage capacity (e.g., data stored in IBM Cloud Object Storage). This is particularly useful in data analytics workloads where the compute requirements may vary significantly over time, but the storage requirements remain relatively constant.
Cost Control: By allowing compute and storage to be managed separately, users have greater flexibility to control costs. For example, users can increase compute power temporarily to handle a peak workload without the need to increase storage costs. Conversely, they can store large datasets without paying for unused compute capacity. This decoupling leads to a more cost-effective and efficient use of cloud resources.
Advantages in Cloud Environments: Decoupling compute and storage aligns with the best practices in modern cloud environments, where elasticity, scalability, and cost efficiency are paramount. It allows organizations to adapt quickly to changing business needs and workload demands, reducing overhead and improving resource utilization.
Reference:
IBM Cloud Analytics Engine Documentation
IBM Cloud Architect Exam Study Guide
IBM Cloud Object Storage
NEW QUESTION # 55
Implementing User-Defined Policies involves:
- A. Using the CLI to generate policy templates
- B. Imparting policies from external sources without modification
- C. Directly editing the platform's source code
- D. Custom coding of API behavior using Assembly
Answer: D
NEW QUESTION # 56
Which two are benefits of using the IBM Cloud Transit Gateway to connect IBM Cloud VPCs?
- A. Connectivity between multiple VPCs and PowerVS
- B. Connectivity over the internet
- C. Direct Link connectivity to multiple VPCs and classic networking
- D. Default connectivity to services in multiple regions
Answer: A,C
Explanation:
IBM Cloud Transit Gateway provides secure and scalable connectivity between multiple IBM Cloud VPCs (Virtual Private Clouds) and other IBM Cloud resources, including PowerVS (Power Virtual Servers) and classic networking environments.
Benefits:
Connectivity Between Multiple VPCs and PowerVS: Allows seamless networking between VPCs and PowerVS, supporting hybrid and multi-cloud architectures.
Direct Link Connectivity: Supports direct, high-speed private connectivity between VPCs and classic IBM Cloud infrastructure, enabling secure communication without traversing the public internet.
Comparison with Other Options:
A (Connectivity over the internet): Transit Gateway provides private connectivity, not public internet connectivity.
C (Default connectivity to services in multiple regions): Not a direct benefit of Transit Gateway, as regional connectivity may require additional configuration.
Reference:
IBM Cloud Transit Gateway Documentation
IBM Cloud Architect Exam Study Guide
NEW QUESTION # 57
Leveraging security assembly policies in IBM API Connect includes:
- A. Utilizing XML threat protection far SOAP APIs
- B. Enforcing authentication at the gateway level
- C. Implementing rate limiting to prevent API abuse
- D. Configuring SSL/TLS certificates for each API individually
Answer: A,C
NEW QUESTION # 58
What capability does IBM API Connect offer to enhance communication between API Providers and API Consumers?
- A. Mandatory email notifications for all API updates
- B. Direct messaging between providers and consumers within the platform
- C. A public forum far discussing API-related issues
- D. Automated API documentation generation and publishing
Answer: D
NEW QUESTION # 59
What considerations should be made when creating Products and Plans?
- A. Ensuring each pruluct contains only one API far simplicity
- B. Offering all APIs for free to maximize adoption
- C. Providing detailed technical documentation with every plan
- D. Matching API offerings with consumer demand and usage patterns
Answer: C,D
NEW QUESTION # 60
What is a key consideration when configuring OAuth2 Provider in IBM API Connect?
- A. OAuth2 token generation using only symmetric encryption
- B. Integration with third-party OAuth2 services for enhanced security
- C. Delegating OAuth2 management to the API consumer
- D. Selection of OAuth2 grant types appropriate for the API's use case
Answer: D
NEW QUESTION # 61
What describes a feature of IBM Cloud Transit Gateway when interconnecting multiple virtual private clouds (VPC)?
- A. Provides a decentralized hub for better regional connectivity and load balancing
- 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. Client designates which traffic remains within the private IBM Cloud backbone
Answer: B
Explanation:
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.
NEW QUESTION # 62
What is the recommended IOPS tier for a general purpose application when provisioning 10 TB of Block Storage for VPC on IBM Cloud?
- A. 10 IOPS/GB
- B. 5 IOPS/GB
- C. 1 IOPS/GB
- D. 3 IOPS/GB
Answer: D
Explanation:
For general-purpose applications in IBM Cloud, the recommended IOPS tier when provisioning 10 TB of Block Storage for Virtual Private Cloud (VPC) is 3 IOPS/GB. This IOPS tier provides a balanced level of performance suitable for a wide range of general-purpose workloads, ensuring that the application can handle typical storage and performance requirements without unnecessary over-provisioning or cost.
The 3 IOPS/GB tier is designed to provide a reasonable level of input/output operations per second (IOPS) for general-purpose applications, such as web hosting, database hosting, or development workloads that do not require high-performance storage.
For more performance-critical or latency-sensitive applications, you might choose a higher IOPS tier (such as 5 or 10 IOPS/GB), but for general-purpose workloads, 3 IOPS/GB offers an optimal balance between cost and performance.
IBM Cloud Documentation Reference:
IBM Cloud Block Storage for VPC: Performance and IOPS Options
IBM Cloud Block Storage Provisioning Guide
NEW QUESTION # 63
When administering consumer access, which practices should be followed?
- A. Regularly reviewing and updating consumer organization permissions
- B. Ensuring that consumer feedback is incorporated into API development
- C. Assigning a single administrator for all consumer organizations
- D. Granting access based on the highest bidder
Answer: A,B
NEW QUESTION # 64
Which roles are involved in the lifecycle of an API in IBM API Connect? (Select two)
- A. Netvvork Security Specialist
- B. Database Administrator
- C. API Developer
- D. API Product Manager
Answer: C,D
NEW QUESTION # 65
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