Free Alibaba Cloud ACA-Developer Practice Exam with Questions & Answers | Set: 3

Request response mode

Synchronization mode

Asynchronous mode

Waiting for callback mode

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

Applies indices to fields that contain many records.

table should not contain more than 6 indexed fields.

Apply indexing to fields of fixed length (preferably not long fields).

Adhere to the rightmost prefix principle when using composite indexes.

AK can refer to both the AccessKey ID and the AccessKey secret

You can use AK to construct an API request and the corresponding resources can be manipulated if your request successfully..

An AccessKey ID and AccessKey Secret cannot be used separately

AccessKey Secrets for RAM sub-accounts can be queried at any time on the Console Interface after creation

Alibaba Cloud uses the built-in functionality of the SSL certificate service to encrypt and store the private key to certificates private key

The plaintext of Alibaba Cloud's private key is usually stored on disk and backed up regularly

Alibaba Cloud Certificate Service uses symmetric encryption to save the certificate private key

Alibaba Cloud Certificate Service keys are loaded Into memory in plaintext format ONLY when needed

Avoid using version management.

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.

Use OSS's built in lifecycle management capabilities to move old versions of objects to Archival Storage.

For ECS, CloudMonitor supports the collection and reporting of important ECS operating system level events, such as application crashes.

For Object Storage Service (OSS), CloudMonitor supports the collection and reporting of bucket upstream and downstream bandwidth which exceeds the flow control threshold or the user-selected reporting threshold.

For Server Load Balancer (SLB), CloudMonitor supports the collection and reporting of HTTPS certificate expiration events, for certificates installed on SLB.

For E-MapReduce, CloudMonitor supports the collection and reporting of service component status, cluster creation failure, and timeout events.

Container Registry can automatically build new Docker images when source code changes.

For source code hosted on websites outside China, Container Registry can use servers outside China to build Docker images, even when you are using a Container Registry instance in Mainland China.

You can create and delete image repositories in different regions based on your needs.

You can set your image repository access to public or private.

EmptyDir

NFS

ConfigFile

FixedVolume