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NEW QUESTION # 21
Which is a key feature of Oracle Cloud Infrastructure (OCI) Container Registry?
- A. It supports private access from Oracle Cloud Infrastructure resources using an Internet gateway.
- B. It is not Open Container Initiative-compliant, limiting the types of container images it can store.
- C. It enables you to store container images that conform to Open Container Initiative specifications, manifest lists for multiple architectures, and Helm charts.
- D. It provides a managed registry for container images, ideal for storing and sharing virtual machine images.
Answer: C
Explanation:
Oracle Cloud Infrastructure Container Registry is a managed Docker registry service that supports storing, sharing, and managing development artifacts like Docker images. It is compliant with the Open Container Initiative (OCI) specifications, supporting a wide range of container images and configurations, including manifest lists for multiple architectures and Helm charts, making it ideal for modern containerized applications.
NEW QUESTION # 22
You need to create a load balancer for Sunbird ED Portal, the Player microservice. You use annotation (o control (he shapes of the load balancer where you need to put the annotation in the ansible inventory. What is the minimum bandwidth for a flexible load balancer in OCI?
- A. 100 Mbps
- B. 8000 Mbps
- C. 10 Mbps
- D. 400 Mbps
Answer: C
Explanation:
The minimum bandwidth for a flexible load balancer in OCI is 10 Mbps. This allows for granular control over the load balancer's capacity, enabling it to be precisely tailored to the application's needs, such as the Player microservice in Sunbird ED Portal, ensuring efficient distribution of traffic and optimal resource utilization.
NEW QUESTION # 23
What is the relationship between Oracle Cloud Infrastructure regions and availability domains?
- A. Availability domains are isolated from regions and can exist independently.
- B. Regions consist of multiple availability domain, and resources are typically specific to one availability domain.
- C. Availability domains provide low-latency connectivity to the Internet within a region.
- D. A region encompasses multiple realms, each with its own availability domains.
Answer: B
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 # 24
You have subscribed to a tenancy in which you want to logically organize and isolate OCI resources from different users for governance, and control access to them in a way that is meaningful to your business.
Which OCI resource can help you achieve this logical separation?
- A. Dynamic Group
- B. Group
- C. Fault Domain
- D. Compartment
- E. Federation
Answer: D
Explanation:
Compartments in Oracle Cloud Infrastructure are used to logically organize and isolate OCI resources. They provide a way to separate resources for different projects or departments and control access through policies, aligning with governance and business requirements.
NEW QUESTION # 25
How do you replay all the existing messages in a Kafka topic by using the Flink job?
- A. Increase the number of partitions of the Kalka topic and restart the Flink job.
- B. Restart the Flink job.
- C. Stop the Mink job. Reset the consumer group offset value to oldest and start the job.
- D. Change the retention period to zero and revert to the previous value for the Kalka topic.
Answer: C
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
Which service key's public key must be configured for validating authentication tokens in microservices?
- A. sunbird-auth
- B. sunbird-utils
- C. sunbird-apimanager-util
- D. Keycloak
Answer: D
Explanation:
Keycloak is an open-source Identity and Access Management solution used for modern applications and services. It is designed to work with authentication and authorization tokens. In a microservices architecture, the public key from a service like Keycloak would be used to validate authentication tokens, ensuring secure communication between services.
NEW QUESTION # 27
When it comes to the Subbird platform, which open-source platform is specifically employed for the purpose of hosting a discussion forum?
- A. Discourse
- B. FluxBB
- C. NodeBB
Answer: A
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 # 28
Which statement best describes the primary use of the Sunbird client service library (CSL) in an application?
- A. It uses CSL for rendering various forms within the application's user interface.
- B. It leverages CSL to provide a set of common user interface components across the application.
- C. None of these options accurately represents the purpose of CSL within the application.
- D. It employs CSL to execute complex business logic and interact with external APIs.
Answer: D
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 # 29
What is Apache Druid?
- A. A distributed stream-processing platform
- B. A distributed database management system
- C. A distributed DLAP data store
- D. A distributed cache system
Answer: C
Explanation:
Apache Druid is known for its real-time analytics capabilities and is a distributed column-store data store designed for OLAP (online analytical processing) queries on event data, making it suitable for high-performance analytics.
NEW QUESTION # 30
How do you construct I he collection relation cache foe a course if it is not available?
- A. Restart the relation-cache-updater job.
- B. Drain the relation-cache-updater input Kalka topic.
- C. Create the cache entry manually.
C Execute the "syne-rel-cache-all''command in sync to generate the events for relation- cache-updater andre-create the cache.
Answer: B
Explanation:
In microservices and distributed systems, caches are often used to improve performance. The command
'sync-rel-cache-all' suggests a process to synchronize and regenerate the cache for collection relationships, which is a plausible approach to constructing or reconstructing a cache in such systems.
NEW QUESTION # 31
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. Disk Read I/O
- B. CPU Utilization
- C. Memory Utilization
- 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 # 32
When it comes lo Fault Domains (FDs) in Oracle Cloud Infrastructure (OCI). what is the primary purpose of distributing compute instances across different FDs within an availability domain?
- A. To ensure that all instances experience hardware maintenance events simultaneously
- B. To achieve high availability and protect against unexpected hardware failures
- C. To optimize resource usage and consolidate instances on the same hardware
- D. To centralize instances for easier management and monitoring
Answer: B
Explanation:
The primary purpose of distributing compute instances across different Fault Domains within an availability domain is to protect against unexpected hardware failures and ensure high availability. Fault Domains provide a way to distribute instances such that they are not on the same physical hardware, reducing the risk of simultaneous failures affecting all instances.
NEW QUESTION # 33
Which step should a system administrator perform to enhance the security of user access toOracle Cloud Infrastructure (OCI)Console?
- A. Enable Security Zone Policies on the entire tenancy.
- B. Enable multi-factor authentication (MFA).
- C. Enable OCI Cloud Guard.
- D. Enforce OCI Identity and Access Management (IAM) policies.
Answer: B
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 # 34
Which Cypher query should you use to retrieve the count of nodes with a specific label in a Neo4j HA cluster'.'
- A. MATCH (n) WHERE n.label="Label" RFTURN COUNT(n)
- B. COUNT (n:Label)
- C. RETURN COUNT(n:Label)
- D. MATCH (n:Label> RETURN COUNT*n)
Answer: D
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 # 35
Which statement is true about IAM identity domains in Oracle Cloud Infrastructure (OCI)?
- A. They enable customers to share user, group, and access policies between multiple OCI tenancies.
- B. They enable customers to merge multiple (XI tenancies into a single identity domain, which can then be managed as a single unit.
- C. They enable customers to partition an OCI tenancy into multiple identity domains, each with its own set of users, groups, and access policies.
- D. They enable customers to create a new OCT tenancy by importing user, group, and access policies from an existing tenancy.
Answer: A
Explanation:
Oracle Cloud Infrastructure's (OCI) Identity and Access Management (IAM) system allows customers to manage access to resources by defining policies. While OCI does not support merging multiple tenancies into a single identity domain, it allows for the sharing of resources and policies between tenancies to some extent, which aligns most closely with option C.
NEW QUESTION # 36
Which Oracle Cloud Service can be used as a Docker Hub equivalent as part of the Sunbird ED infrastructure requirements?
- A. OCI Streaming
- B. OCI Events
- C. OCI Container Registry (Oracle Cloud Infrastructure Registry OCIR)
- D. OCI Container Instances
Answer: C
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 # 37
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