Alibaba ACA-Developer Exam Questions Instant Access

Question 1

A Developer is creating a Function Compute function. This function requires around 1 GB of temporary storage for files while executing. These files will not be needed after the function is completed for a fixed period. How can this developer MOST efficiently handle the temporary files?

AStore the files in Cloud Disk and delete the files when Function Compute function call completes.

BCopy the files to NFS and delete the files when the Function Compute function call completes.

CStore the files in the /tmp directory on a temporary ECS instance, and delete the files at when the Function Compute function call completes.

DCopy the files to an OSS bucket with a lifecycle policy configured to delete the files automatically.

Answer : C

Question 2

A Developer is asked to implement a caching layer in front of RDS. Cached content is expensive to regenerate in case of service failure. Which implementation below would work while maintaining maximum uptime?

AImplement ApsaraDB for Redis in Cluster Mode

BInstall Redis on an ECS instance

CImplement ApsaraDB for Redis in Standard Mode

DMigrate the ROS database to HBase to save the cache layer

Answer : D

Question 3

Which of the following options is not included in Object Storage Service (OSS) object URLs?

ARegion name

BZone name

CBucket name

DFilename

Answer : A

Question 4

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?

AHBase

BOceanBase

CRDSMariaDB

DTSDB

Answer : C

Question 5

A developer accesses logs in a Log Service Logstore via the API. The error code returned by the server is 404. Which of these could be the cause?

AThe log project (Project) does not exist

BThe requested digital signature does not match

CServer internal error

DServer is busy: please try later

Answer : A

Question 6

A developer is writing logs through the Log Service API, and can see via the Logstore monitorin metrics that write traffic is about 10 MB/s, but a 403 error is reported during the writing process. Which of these is a possible cause?

AThere is significant network delay

BThe write throughput of a single partition is limited, and the 10 MB/s write traffic exceeds

CThere is not enough space in the Logstore partition

DThe target partition in the Logstore is not specified

Answer : D

Question 7

Which of the following are types of backend services that API Gateway supports? (Number of correct answers: 3)

AHTTP(s) service

BCloudMonitor Service

CResources In a VPC

DFunction Compute

ELog service

Answer : A, B, C

Alibaba ACA Developer ACA-Developer Exam Questions