Alibaba Cloud ACA-CloudNative 問題集

質問 1：
What are the benefits using Alibaba Cloud when implementing microservice architecture? (The number of correct answer: 5)
A. High availability with multi-zone redundancy to minimize business disruptions
B. Set up infrastructure and provision resources in less than 1 day
C. All resources that you used become free
D. Easy to scale up or down (vertical or horizontal)
E. No need for expert Database Administrators for setup & maintenance of database
F. Fully monitor your infrastructure in real-time
正解：A,B,D,E,F

質問 2：
Which of the following are true, regarding Helm Charts? (Number of correct answers: 3) Score 2
A. Helm Charts can achieve "immutable infrastructure"
B. Help Charts are declarative but not procedural
C. Help Charts make it easy to achieve CD (continuous deployment) for applications
D. Helm Charts make it easy to install Kubernetes objects, such as ConfigMap, Services, Pods, etc.
正解：B,C,D

質問 3：
How to keep the data consistency in microservices architecture refer to microservice.io?
A. Use PL/SQL Statement from RDBMS
B. Use store procedure/function from RDBMS
C. Use a Choreographer and Event Bus. In the failed scenario in a service, a Choreographer will use event bus to cancel all the communications among services related.
D. Database lock required (commit and rollback scenario)
正解：C

質問 4：
Which of the following statements are correct regarding Alibaba Serverless Kubernetes (ASK)?
(Number of correct answers: 2)
Score 2
A. Serverless clusters support GPU instances and Preemptible instances
B. Serverless clusters are nodeless
C. Serverless clusters can add ECS instances worker nodes
正解：A,B

質問 5：
Which of the following are correct ways to generate a Log Service ingress dashboard? (Number of correct answers: 2) Score 2
A. LogStore can be installed via app catalog.
B. When creating an Alibaba Cloud Container Service for Kubernetes (ACK) cluster, an ingress dashboard can be installed at creation time.
C. The Logtail-ds component can be installed by using
正解：A,C

質問 6：
For database migration, if the source database uses Oracle database features, which Alibaba Cloud database should you choose for migration?
Score 2
A. PolarDB
B. RDS
C. AnalyticDB
正解：A

質問 7：
Does k8s cluster running on IDC but it can be scale up pods to Alibaba Cloud ASK (Serverless cluster) ?
A. False
B. True
正解：B

質問 8：
Alibaba Cloud Elasticsearch is a Lucene-based, distributed, real-time search and analytics engine. It is an open-source product released under the Apache License.
A. False
B. True
正解：B

質問 9：
What is the foundation of the microservices architecture?
A. About developing a single application become modular in the level of method/function, but keep only in
1 object app because we need to manage it easily.
B. Developing a single application as a suite of small and independent services that are running in their own processes, can develop and deploy independently.
C. The development of a single application becomes a centralized, including all dependencies on bare metal.
D. Developing a single application while keeping data consistency with transaction control (like row locking then commit, will rollback when failed)
正解：B