Alibaba Developer ACA-Developer Dumps Full Questions with Free PDF Questions to Pass
100% Updated Alibaba Cloud ACA-Developer Enterprise PDF Dumps
NEW QUESTION 46
A game company is developing a game application for the Apple and Android platforms. Currently, this application stores user data (as flat files) securely on the local storage of a user's device. The game company wants to provide a new feature that allows customers to play the same game on different devices, which requires synchronizing user data between different devices. Which of the following cloud services supports this requirement without creating a new back-end application?
- A. Table Store
- B. Function Compute
- C. Log service
- D. Object Storage Service (OSS)
Answer: B
NEW QUESTION 47
When versioning is enabled for an OSS Bucket, previous versions of objects will be retained, using storage space and incurring additional costs. How can you save space and reduce costs, while retaining some of the benefits of object versioning?
- A. Use the Function Compute Service to regularly check for and delete old versions of objects.
C Use OSS s built in lifecycle management capabilities to automatically delete old versions of objects after a set time. - B. Avoid using version management.
- C. Use OSS's built in lifecycle management capabilities to move old versions of objects to Archival Storage.
Answer: C
NEW QUESTION 48
Which data format is NOT supported by Alibaba Cloud Message Service?
- A. JSON
- B. SIMPLIFIED
- C. XML
- D. VERBOSE
Answer: D
NEW QUESTION 49
Which of the following descriptions of the principles of Alibaba Cloud SSL certificate private key protection is correct?
- A. The plaintext of Alibaba Cloud's private key is usually stored on disk and backed up regularly
- B. Alibaba Cloud Certificate Service keys are loaded Into memory in plaintext format ONLY when needed
- C. Alibaba Cloud Certificate Service uses symmetric encryption to save the certificate private key
- D. Alibaba Cloud uses the built-in functionality of the SSL certificate service to encrypt and store the private key to certificates private key
Answer: A
NEW QUESTION 50
Which of the following configurations cannot improve the stability, reliability or availability of an Alibaba Cloud Scaling Group? (Number of correct answers: 3)
- A. In the process of creating a Scaling Group, associate multiple Server Load Balancers
- B. Select multiple VPCs when creating the scaling group
- C. When creating the scaling group, select multiple Vswitches in multiple Zone within a Region
- D. Choose a variety of different ECS types when creating your Scaling Configuration
Answer: A,B,D
NEW QUESTION 51
By default, Function Compute creates an instance for each request Function compute allows you to create multiple instances concurrently to reduce costs and improve execution efficiency Which of the following scenarios is NOT suitable for enabling the feature of handling multiple requests on a single instance? (Number of correct answers: 2)
- A. The function has a shared state and cannot be accessed concurrently.
- B. Functions processes independent data objects.
- C. Requests are waiting for responses from the downstream service for an extended period of time.
- D. A request consumes a large amount of CPU and memory resources.
Answer: A,C
NEW QUESTION 52
Which of the following is NOT required for SMC (Server Migration Center) to migrate a server to Alibaba Cloud?
- A. Import the migration source information to the SMC console.
- B. The SMC client transfers the source data to an intermediate ECS instance.
- C. From the SMC console, configure the type of disk image to be generated during the migration.
- D. The SMC backend service generates a target Alibaba Cloud image based on the migration source.
Answer: A
NEW QUESTION 53
What are the advantages of using Elastic Container Instance (ECI) to deploy applications compared with using ECS? (Number of correct answers; 2)
- A. Startup in seconds without the need to reserve resources
- B. Stronger isolation between instances
- C. Low maintenance, low costs
- D. Less significant visualization layer performance losses
Answer: A,C
NEW QUESTION 54
Which of these are suitable use cases for Alibaba Cloud's ApsaraDB for Redis service? (Number of correct answers: 3)
- A. E-Commerce sales & promotions
- B. Enterprise OA system
- C. Live video chat system
- D. Online gaming user rankings (scoreboard)
Answer: B,C,D
NEW QUESTION 55
Which of the following options is correct, regarding Object ACL in Alibaba Cloud's Object Storage Service (OSS)?
- A. Object ACL is an object-level (not bucket level) permission control mechanism. There are currently three levels of access rights: private, public-read, and public-read-write.
- B. "Private" indicates that an object is a private resource, that is, only the owner of the object has read and write permissions on the object, and other users can read but have no permission to modify or delete the object.
- C. If the permissions of an object are not set, the permissions of the object are inherited from the bucket.
- D. You can set the ACL associated with an object by examining the X-OSS-Object-ACL header in the HEAD request, when making the PutObjectACL API call.
Answer: A
NEW QUESTION 56
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?
- A. OSS
- B. Log Service
- C. Redis
- D. RDS
Answer: C
NEW QUESTION 57
Alibaba Cloud Content Delivery Network (CDN) is a suitable product for the following scenarios: (Number of correct answers: 2)
- A. BBS forums with less than 100 daily page views.
- B. Static sites with more than 100,000 daily page views.
- C. Images, HTML, CSS and JS files on a medium-sized E-commerce website.
- D. News websites with more than 30 million daily page views and users are all from Singapore.
Answer: A,D
NEW QUESTION 58
A developer was sending a request to Key Management Service (KMS) through the KMSAPI interface, and found that the key management service cannot be accessed. What is a possible reason?
- A. The user key master key is in Pendinglmport state
- B. The user key master key is in PendingDeletion state
- C. The HTTPS protocol is not enabled
- D. User key master key is in Disabled state
Answer: B
NEW QUESTION 59
Which of the following options correctly describes CloudMonitor Custom Monitoring and Custom Events?
(Number of correct answers; 2)
- A. Custom Events are used for collection of continuous event type data, queries, and alarms.
- B. Custom Monitoring is used for periodic and continuous collection of time series monitoring data, queries, and alarms.
- C. Custom Monitoring is used for collection of non-continuous event data, such as information about ECS instance restarts.
- D. Custom Events is for periodic and continuous collection of time series monitoring data, queries, and alarms.
Answer: B,C
NEW QUESTION 60
you have a Node.js based application and you plan to migrate it to Alibaba Cloud Function Compute, which of the following steps is unnecessary?
- A. Manually install the Node. Js package in the Function Compute console
- B. Start and verify the application in the Function Compute console
- C. Create a single web application and upload the corresponding code package via the Function Compute console (or fcli)
- D. Configure program startup commands and access ports in the Function Compute console
Answer: A
NEW QUESTION 61
Which of the following data volume types is not supported by Elastic Container Instance (ECI)?
- A. FixedVolume
- B. EmptyDir
- C. NFS
- D. ConfigFile
Answer: B
NEW QUESTION 62
Alibaba Cloud's ECS disk snapshotting tool can create crash-consistent snapshots for all types of Cloud Disks.
It is a convenient and efficient disaster recovery method. It is often used for data backup, custom mirroring, application disaster recovery, etc. Which of the following is NOT a correct description of disk snapshots?
- A. Snapshot rollbacks can be performed while the ECS instance is running.
- B. In the event of a system failure, you can use a snapshot to roll back the Cloud Disk to an earlier point in time.
- C. Snapshots can be created manually through the web console or command line tools, or automatically according to a schedule.
- D. A snapshot is a backup file of the cloud disk data state at a certain point in time. The first snapshot of the cloud disk is a full snapshot of the ac usage. Empty data blocks are not backed up. All subsequent snapshots are incremental snapshots, and only changed data blocks are stored.
Answer: D
NEW QUESTION 63
Alibaba Cloud Link Tracing Analysis supports call link reporting based on the Open Tracing standard. Which of the following client types does link tracing support? (Number of correct answers:3)
- A. Jaeger
- B. Skywalklng
- C. Zipkln
- D. Pinpoint
Answer: A
Explanation:
Explanation
https://www.alibabacloud.com/blog/opentracing-implementation-of-jaeger_594957
NEW QUESTION 64
Elastic Container instance (ECI) is an agile, secure, serverless service for running containers. If you need to configure public network access for ECI, which of these are reasonable solutions? (Number of correct answers: 3)
- A. Bind an Elastic IP (EIP) to the ECI instance.
- B. Bind a NAT gateway and an EIP to the VPC to which the ECI belongs.
- C. Configure ECI as a backend for a Server Load Balancer (SLB) that has a public IP address.
- D. Specify a public IP address when creating the ECI.
Answer: B,C,D
NEW QUESTION 65
When you use SQL statements to access tables in a database without an index configured, a full table scan will be performed. If a table contains a large amount of data, this kind of scan will access a large amount of data and consume a lot of the database's resources. Which of the following options are best practices when creating database indexes? (Number of correct answers: 3)
- A. Adhere to the rightmost prefix principle when using composite indexes.
- B. Apply indexing to fields of fixed length (preferably not long fields).
- C. Add an index to a field that is frequently queried but does not frequently perform add, delete, or modify operations.
- D. table should not contain more than 6 indexed fields.
- E. Applies indices to fields that contain many records.
Answer: B,C,E
NEW QUESTION 66
......
Use Valid Exam ACA-Developer by Prep4sureExam Books For Free Website: https://lead2pass.prep4sureexam.com/ACA-Developer-dumps-torrent.html