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NEW QUESTION # 10
Oracle Cloud Agent is a lightweight proves that manages plug-ins running on compute instances for all Ubuntu platform images dated after Feb 2019. Plug-ins collect performance metrics that can be displayed in (XI Console Dashboards. Which is NOT a metric in compute instance?
- A. CPU Utilization
- B. Memory Utilization
- C. Disk Read I/O
- D. Disk Free Space
Answer: D
Explanation:
Oracle Cloud Agent collects various performance metrics from compute instances, such as Disk Read I/O, Memory Utilization, and CPU Utilization, to help monitor and manage the performance of instances.
However, Disk Free Space is typically not a metric directly provided by the Oracle Cloud Agent as it focuses more on performance metrics rather than storage capacity metrics.
NEW QUESTION # 11
Which of these steps should be pet formed when creating the infrastructure Tor Sunbird ED deployment?
* Create NAT Gateway in the Virtual Cloud Network (VCN) to give those cloud resources that are without
* public IP addresses access to (he Internet, without exposing those resources to incoming Internet connections.
* Create Service Gateway in the VCN to enable private access lo specific Oracle service (for example.
Object Storage. Container Registry, and so on) without exposing the data to the public Internet
* Create Network Security Group (NSG) to allow the Compute VMs lo access other subnets. Oracle services, and the Internet.
* Create Reverse DNS (FTR) records to resolve all private IP addresses hack to fully qualified domain names
* IFODN).
- A. (iii) and (iv) only
- B. (i), (ii), and (iv) only
- C. (i), (ii), (iii) only
- D. (i), (ii), (iii) and (iv)
Answer: C
Explanation:
When creating the infrastructure for Sunbird ED deployment, it is essential to create a NAT Gateway for enabling private resources to access the internet without direct exposure, a Service Gateway for private access to Oracle services without internet exposure, and Network Security Groups (NSGs) for defining security rules for VMs. Creating Reverse DNS records is not typically a required step in this context, making options (i), (ii), and (iii) the correct actions to perform.
NEW QUESTION # 12
Which Cypher query should you use to retrieve the count of nodes with a specific label in a Neo4j HA cluster'.'
- A. RETURN COUNT(n:Label)
- B. MATCH (n:Label> RETURN COUNT*n)
- C. MATCH (n) WHERE n.label="Label" RFTURN COUNT(n)
- D. COUNT (n:Label)
Answer: B
Explanation:
In Neo4j, the Cypher query to retrieve the count of nodes with a specific label would be structured asMATCH (n:Label) RETURN COUNT(n). This query matches all nodes with the specified label and returns the count of these nodes, providing a straightforward way to aggregate nodes based on their labels in a Neo4j database.
NEW QUESTION # 13
Which content player does NOT exist in the Sunbird platform?
- A. PDF Player
- B. Video Player
- C. QuML Player
- D. HTML Player
Answer: C
Explanation:
In the context of digital learning platforms, common content players include Video Player, HTML Player, and PDF Player for handling various content types. QuML (Question Markup Language) Player is less common and might not exist in the Sunbird platform, as the platform would more likely use standard formats like HTML, PDF, and video for content delivery.
NEW QUESTION # 14
What is the primary purpose of Oracle Cloud Infrastructure Resource Manager (ORM)?
- A. To provision and manage Oracle Cloud Infrastructure resources through the "infrastructure-as-code" model using Terraform
- B. To provide a managed repository for source code
- C. To automate software builds and deployments
- D. To create and manage container images
Answer: A
Explanation:
Oracle Cloud Infrastructure Resource Manager (ORM) is a managed service that enables the provisioning and managing of OCI resources through the infrastructure-as-code model. It uses Terraform by HashiCorp, allowing users to define and apply configurations using declarative code, thereby automating the setup and maintenance of cloud resources efficiently.
NEW QUESTION # 15
You have configured an Oracle Cloud Infrastructure (OCI) Load Balancer to distribute traffic to two compute instances in a private subnet. However, one of the target instance's health is marked as Critical. Which is NOT a typical reason for this?
- A. The target instance is in a different availability domain than the Load Balancer.
- B. The network security group rules of the target instance do not allow traffic on the necessary ports.
- C. The target instance did not respond with a successful HTTP status code.
Answer: A
Explanation:
The health of an instance in the context of OCI Load Balancer does not directly depend on its availability domain. Instances can be in different availability domains from the Load Balancer and still receive traffic as long as they are within the same region and the network configuration allows it. Typical reasons for an instance to be marked as Critical include failing health checks due to issues like improper security group configurations or the instance not responding correctly, but not because of its placement in a different availability domain.
NEW QUESTION # 16
You observe that during peak hours, the resources used in Sunbird ED are not enough for the deployed microservices. What should you do?
- A. Enable Auto-Tiering of the Object Storage bucket.
- B. Create Instance Pools for the virtual machines (VMs) that run the non-containerized workload.
- C. Create Volume Groups for the VMs.
- D. Use the Kubernetes Cluster Autoscaler in (XI Container Engine for Kubernetes.
Answer: D
Explanation:
Using the Kubernetes Cluster Autoscaler with OCI Container Engine for Kubernetes (OKE) is an effective way to dynamically adjust the resources allocated for containerized workloads based on demand. This ensures that during peak hours, additional resources are automatically provisioned to accommodate the increased load, thereby maintaining performance and availability.
NEW QUESTION # 17
Which two API microservices are exposed by Sunbird Lern?
- A. Batch-Service
- B. Learning-Service
- C. Certificate-Service
- D. Knowledge-Service
- E. User-Org-Service
Answer: B,E
Explanation:
In the context of microservices architecture, services like User-Org-Service and Learning-Service are commonly exposed to handle specific functionalities such as user and organization management, and learning management respectively. Batch-Service, Knowledge-Service, and Certificate-Service might be part of the ecosystem but the naming convention suggests that User-Org-Service and Learning-Service are more likely to be the core services exposed by an educational platform like Sunbird Lern.
NEW QUESTION # 18
Which statement best describes the default AuthZ behavior for users and groups in Oracle Cloud Infrastructure IAM?
- A. Users and groups must request access from the administrator for each resource.
- B. Users and groups are automatically granted access to all resources.
- C. Access to resources in explicitly granted in policies; otherwise, it is denied by default.
- D. Users and groups arc granted access based on their roles without the need for policies.
Answer: C
Explanation:
In Oracle Cloud Infrastructure (OCI) IAM, the principle of least privilege is applied, which means that access to resources is denied by default. Users and groups are granted access explicitly through policies that define the actions allowed on specific resources, ensuring that access is controlled and minimized to what is necessary.
NEW QUESTION # 19
What is the relationship between Oracle Cloud Infrastructure regions and availability domains?
- A. Regions consist of multiple availability domain, and resources are typically specific to one availability domain.
- B. Availability domains are isolated from regions and can exist independently.
- C. A region encompasses multiple realms, each with its own availability domains.
- D. Availability domains provide low-latency connectivity to the Internet within a region.
Answer: A
Explanation:
Oracle Cloud Infrastructure regions consist of one or more availability domains. Each availability domain is a standalone, isolated data center within a region, and resources provisioned in an availability domain are specific to that domain, providing fault tolerance and high availability within a region.
NEW QUESTION # 20
Which step should a system administrator perform to enhance the security of user access toOracle Cloud Infrastructure (OCI)Console?
- A. Enable multi-factor authentication (MFA).
- B. Enable OCI Cloud Guard.
- C. Enable Security Zone Policies on the entire tenancy.
- D. Enforce OCI Identity and Access Management (IAM) policies.
Answer: A
Explanation:
Enabling Multi-Factor Authentication (MFA) is a crucial step in enhancing the security of user access to cloud services, including the Oracle Cloud Infrastructure (OCI) Console. MFA adds an additional layer of security by requiring users to provide two or more verification factors to gain access, significantly reducing the risk of unauthorized access.
NEW QUESTION # 21
Which Oracle Cloud Service can be used as a Docker Hub equivalent as part of the Sunbird ED infrastructure requirements?
- A. OCI Container Registry (Oracle Cloud Infrastructure Registry OCIR)
- B. OCI Events
- C. OCI Streaming
- D. OCI Container Instances
Answer: A
Explanation:
OCI Container Registry (OCIR) is a managed Docker registry service that provides a Docker Hub equivalent functionality within Oracle Cloud Infrastructure. It allows users to store, share, and manage container images securely, making it an essential part of the infrastructure for containerized applications like those in Sunbird ED.
NEW QUESTION # 22
Which statement best describes the primary use of the Sunbird client service library (CSL) in an application?
- A. It employs CSL to execute complex business logic and interact with external APIs.
- B. None of these options accurately represents the purpose of CSL within the application.
- C. It uses CSL for rendering various forms within the application's user interface.
- D. It leverages CSL to provide a set of common user interface components across the application.
Answer: A
Explanation:
Client Service Libraries (CSL) are typically used to encapsulate the interactions with backend services, providing a simplified API for front-end applications. They can execute business logic and interact with external APIs, abstracting the complexity of direct service communications.
NEW QUESTION # 23
When it comes to the Subbird platform, which open-source platform is specifically employed for the purpose of hosting a discussion forum?
- A. FluxBB
- B. Discourse
- C. NodeBB
Answer: B
Explanation:
Discourse is a popular, modern, open-source discussion platform known for its robustness and flexibility. It is often chosen for community forums due to its extensive features, such as real-time updates, comprehensive moderation tools, and ease of integration, making it a suitable choice for platforms like Sunbird that require interactive and engaging discussion forums.
NEW QUESTION # 24
Your development learn is looking for a comprehensive DevOps solution to streamline the software development and deployment processes in Oracle Cloud Infrastructure (OCI).
They need a service that can manage source code repositories, and automate build and deployment pipelines.
Which OCI service best fits this requirement?
- A. Oracle Cloud Infrastructure Resource Manager (ORM)
- B. Oracle Cloud Infrastructure Container Engine for Kubernetes (OKK)
- C. Oracle Cloud Infrastructure Registry (OC'IR)
- D. Oracle Cloud Infrastructure DevOps Project Service
Answer: D
Explanation:
Oracle Cloud Infrastructure DevOps Project Service is designed to provide a comprehensive DevOps solution, including managing source code repositories, automating build and deployment pipelines, and facilitating continuous integration and delivery (CI/CD) processes, making it the best fit for the development team's requirements.
NEW QUESTION # 25
How do you replay all the existing messages in a Kafka topic by using the Flink job?
- A. Change the retention period to zero and revert to the previous value for the Kalka topic.
- B. Increase the number of partitions of the Kalka topic and restart the Flink job.
- C. Restart the Flink job.
- D. Stop the Mink job. Reset the consumer group offset value to oldest and start the job.
Answer: D
Explanation:
To replay all messages in a Kafka topic using a Flink job, you would typically stop the job, reset the consumer group offset to the earliest position (often referred to as 'oldest'), and then restart the job. This process ensures that the Flink job will reprocess all messages from the beginning of the topic.
NEW QUESTION # 26
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