최신Alibaba Cloud ACA Developer Certification - ACA-Developer무료샘플문제

A. Custom Events are used for collection of continuous event type data, queries, and alarms.

B. Custom Monitoring is used for collection of non-continuous event data, such as information about ECS instance restarts.

C. Custom Monitoring is used for periodic and continuous collection of time series monitoring data, queries, and alarms.

D. Custom Events is for periodic and continuous collection of time series monitoring data, queries, and alarms.

A. A request consumes a large amount of CPU and memory resources.

B. Requests are waiting for responses from the downstream service for an extended period of time.

C. Functions processes independent data objects.

D. The function has a shared state and cannot be accessed concurrently.

A. Implement ApsaraDB for Redis in Cluster Mode

B. Migrate the ROS database to HBase to save the cache layer

C. Install Redis on an ECS instance

D. Implement ApsaraDB for Redis in Standard Mode

A. Append Upload

B. Simple Upload

C. Multipart Upload

D. Form Upload

A. Enterprise OA system

B. Live video chat system

C. E-Commerce sales & promotions

D. Online gaming user rankings (scoreboard)

A. Images, HTML, CSS and JS files on a medium-sized E-commerce website.

B. News websites with more than 30 million daily page views and users are all from Singapore.

C. Static sites with more than 100,000 daily page views.

D. BBS forums with less than 100 daily page views.

A. 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.

B. 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.

C. "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.

D. If the permissions of an object are not set, the permissions of the object are inherited from the bucket.

A. 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.

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

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

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

A. Alibaba Cloud Container Service for Kubernetes (ACK)

B. Elastic Compute Service (ECS)

C. Elastic Container Instance (ECI)

D. Simple Application Server (SAS)

A. Insufficient bandwidth was selected when enabling the CDN service, causing the service capacity reach its limit too early.

B. Cache configuration is inappropriate (ex. overly short Cache Expiry Time for popular files).

C. HTTP Header settings may cause cache misses.

D. When the website has low traffic, the CDN will receive fewer requests and this will result in a lower cache hit rate.

E. The origin site has a large number of dynamic resources.