Free Alibaba ACA-Developer Exam Questions

Become Alibaba Certified with updated ACA-Developer exam questions and correct answers

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Total 96 Questions | Updated On: Nov 19, 2024

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Question 1

Which of the following is NOT a feature of Alibaba Cloud's Cassandra database service?

A : nterless distributed architecture

B : Supports both narrow and wide tables, providing flexible schema functions

C : Cluster storage, strong expansion of read and write capabilities

D : Enterprise-level capabilities such as disaster tolerance, backup and recovery, security, and monitoringacross data centers

Answer: B

Question 2

Function Compute supports one-way triggers and two-way triggers. Which of the following triggers is a

one-way trigger? That is to say you only need to configure the trigger in the event source, not in Function

Compute?.

A : event trigger(s)

B : oudMonitor trigger(s)

C : MNS topic trigger(s)

D : trigger(s)

Answer: B

Question 3

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 : Add an index to a field that is frequently queried but does not frequently perform add, delete, or modifyoperations.

B : Applies indices to fields that contain many records.

C : table should not contain more than 6 indexed fields.

D : ply indexing to fields of fixed length (preferably not long fields).

E : here to the rightmost prefix principle when using composite indexes.

Answer: A,B,D

Question 4

Which of the following permission control policies does Object Storage Service (OSS) provide for access to

objects stored in a bucket? (Number of correct answers: 4)

A : L

B : M Policy

C : cket Policy

D : authorization

E : namic blacklist

F : ject Policy

G : IntranetAccess

Answer: A,C,D

Question 5

Which data format is NOT supported by Alibaba Cloud Message Service?

A : L

B : ON

C : MPLIFIED

D : RBOSE

Answer: D

Page: 1 / 20

Total 96 Questions | Updated On: Nov 19, 2024

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