Download Alibaba Cloud ACA Developer Certification Exam Questions and Answers and more Exams Nursing in PDF only on Docsity!
ACA Developer Certification
Latest Updated 2023
Bests
Alibaba ACA Developer Certification is for individuals who hold development positions and use Alibaba Cloud products to manage andmaintain Alibaba Cloud-based applications. If you are the one, you can choose ACA-Developer exam dumps questions as the preparation tool.DumpsBase provides an appropriate ACA-Developer exam dumps withall the information that can help a person to get the ACA Developer Certification exam cleared.
ACA Developer Certification ACA-
Developer Free Dumps Below For
Reading
Congratulations - you have completed this exam.
Your answers are shown below:
In order to have your applications interact with Alibaba CloudRabbitMQ, you need to create related MQ resources first.
Which of the following resources must be created? (Number ofcorrect answers: 3) o Vhost o Exchang e Queue o Bro ker To pic
Question was not answered
During the process of backing up an RDS database, a developerfound that the backup failed.
What might cause this to happen?
o The database instance is not stopped o DDL operations were performed during the backup o DML operations were performed during the backup DCL operations were performed during the backup
Question was not answered
Which of the following descriptions describes the (SecurityToken Service) STS service correctly? (Number of correct answers: 3) o Through the STS service, RAM users or RAM roles can obtain a temporary token that allows them to call the Alibaba Cloud o API or use the web console A STS request consists of an access address, communication protocol, request method, request parameters and character encoding o When calling the STS API, in order to ensure the safe calling of the API, Alibaba Cloud will authenticate each API request through a signature when each API call is made The STS service supports the use of both HTTP and HTTPS o protocols
Question was not answered
When a developer calls the Alibaba Cloud SDK to access Elastic Compute Service (ECS), the following error is returned; RealNameAuthenticationError
o The ECS instance name violates the ECS service's namingconventions. o The ECS instance name conflicts with other instance names. o The user's Alibaba Cloud account has not passed real nameauthentication o The API callers account and password are not authorized for o ECS access.
Question was not answered
Serverless Workflow allows you to orchestrate distributed tasksin sequence, branch, and parallel modes, and ensure that tasks are reliably coordinated according to your workflow logic.
Which of the following service integration modes is not supportedby Serverless Workflow? o Request response mode Synchronization mode Asynchronous mode Waiting for callback mode
Question was not answered
It should be possible to process video in parallel at scale, to ensure that videos are preprocessed in a reasonable amount oftime.
Which of the following Alibaba Cloud applications can be combined to provide a low operation and maintenance burden and relatively low operating costs? (Number of correct answers: o Serverless Workflow Function Compute o Log Service o Elastic Compute Service (ECS) Server Load Balancer (SLB)
Question was not answered
A Developer is asked to implement a caching layer in front ofRDS. Cached content is expensive to regenerate in case of service failure.
Which implementation below would work while maintainingmaximum uptime?
o Implement ApsaraDB for Redis in Cluster ModeInstall Redis on an ECS instance
o Implement ApsaraDB for Redis in Standard Mode o Migrate the ROS database to HBase to save the cache layer Question was not answered
1. You can use Alibaba Cloud Data transmission service (DTS) orthe open source tool Redis-shake to migrate and synchronize data from a local Redis instance to an Alibaba Cloud Redis instance.
What is one feature which DTS has but Redis-shake does not? o Full data migration Incremental data migration One-way data synchronizationTwo-way data synchronization Question was not answered
2. Which of the following options is not included in Object StorageService (OSS) object URLs? Region name Zone name Bucket name Filename Question was not answered 3. What are the benefits of creating indexes on PolarDB?(Number of correct answers: 2) Improve the query efficiency SELECT statements. Improve the efficiency of DML operations such as UPDATImprove the efficiency of DDL operations. Reduce invalid data scanning. Question was not answered
7. What are the advantages of using Elastic Container Instance (ECI) to deploy applications compared with using ECS? (Numberof correct answers; 2) Low maintenance, low costs Startup in seconds without the need to reserve resources Less significant visualization layer performance losses Stronger isolation between instances
Question was not answered
8. Which of the following are correct, regarding RAM users?(Number of correct answers: 3) RAM users can be created under a single Alibaba Cloud account, corresponding to employees, systems, or applications.
RAM users do not "own" the resources that they create (those belong to the Alibaba Cloud account itself), and RAM users cannotgenerate and pay their own individual bills (costs accrue to and arebilled to the master Alibaba Cloud account).
RAM users belong to an Alibaba Cloud account, but they can also operate as independent accounts with their own private resources, not visible to the primary Alibaba Cloud account.
RAM users must be authorized by the Alibaba Cloud account to log in to the console or use the API to manage the resources owned by the Alibaba Cloud account.
Question was not answered
9. Which of the following statements are correct, with regard toAlibaba Cloud Log Service? (Number of correct answers: 3) As an agent for collecting logs, Logtail can collect logs from existing system log files in a non-intrusive manner
The Log Service frontend service adopts an LVS + NGINX Architecture
The Logstore backend service is deployed on a single machine to complete the real-time persistence, indexing, query and delivery of Logstore data to MaxCompute
Each log written to the Log Service backend will be saved in triplicate (across three separate physical servers)
Question was not answered
10. A mobile application developer intends to use Alibaba Cloud Object Storage Service (OSS) to store the end user data for their app, and to ensure data isolation between each user of the app, to
Cache configuration is inappropriate (ex. overly short Cache Expiry Time for popular files).
Question was not answered
13. Assume that a company uses ApsaraDB for PolarDB. The company commonly queries users based on their basic information, including: addresses, company names, and ID numbers.
In this scenario, what is the best practice for creating a databaseindex (or indexes)?
Create a b-tree index on each column to be searched. Create a hash index on each column to be searched. Create a gin index for multiple fields. Create a gist index for multiple fields.
Question was not answered
14. On which operating systems can you install Alibaba Cloud command line tools? (Number of correct answers: 3) Windows Linux macOS Android
Question was not answered
15. A development team currently supports an application that is designed to be deployed on a single server's local memory As part of migrating to Alibaba Cloud, the team needs to use Auto Scaling, and must therefore move their game state data off of their servers, so that they can automatically scale up and down without losing game data.
Where should the team store these game results to best allow for consistent results without impacting performance?
OSS RDS
Redis Log Service
Question was not answered
16. To meet data analytics requirements on large datasets, which of these databases can meet the demand for structured and semi-structured storage for almost all types of data, albeit with limited support for strong transactions? HBase OceanBase RDSMariaDB TSDB
Question was not answered
17. Which of the following programming languages are supportedby the Alibaba Cloud SDK? (Number of correct answers: 3) Java Swift PHP Python Bash shell
Question was not answered
18. Company A has a large number of files store in Alibaba Cloud OSS that need to be deleted (numbering in the tens of thousands).
What is the fastest, easiest way to delete these files?
Manually delete them one by one Configure a life cycle rule that matches the entire bucket, anddelete all files after one day Call the API from a script, deleting files in batchesDirectly delete the bucket
Question was not answered
The write throughput of a single partition is limited, and the 10MB/s write traffic exceeds
There is not enough space in the Logstore partition The target partition in the Logstore is not specified
Question was not answered
22. Which of the following operations can be performed throughLog Service sAPI? (Number of correct answers: 3)
Collect logs based on Logtail configuration and Logtail machine group information
Create a Logstore, write and read logs to the Logstore Access control for different users
Deliver logs to OSS for storage and analysis
