Object Storage Service (OSS) supports access logging. A bucket owner can activate access logging for their buckets in the OSS management console. When access logging is activated for bucket A, OSS automatically accesses the request logs for this bucket (in hours) and generates and writes an object to the user-specified bucket B according to certain naming rules. Which of the following statements is true for OSS logging?

A. Buckets A and B can be separate buckets (or a single bucket) but they must belong to the same user

B. Buckets A and B must be the same bucket.

C. Buckets A and B can belong to different users.

D. Buckets A and B must be different buckets.

Alibaba Cloud Content Delivery Network (CDN) performs content acceleration with the support of intelligent DNS resolution The following function_________is NOT included in intelligent DNS resolution.

A. A user request is directed to the server nearest to the customer based on location information of the pre-configured IP section.

B. The intelligent DNS resolution can parse the same domain name into different IP addresses based on the IP of different visitors.

C. The intelligent DNS resolution supports web page content caching. A user will receive data from the origin site at first-time access, and then will be reading data from cache in subsequent requests

D. If a user activates mirror sites in different IDCs, intelligent DNS resolution can achieve load balancing by guiding customers in different places to different mirror sites.

Different Alibaba Cloud VPCs are completely isolated from each other.

By default, the VPCs cannot communicate with each other over Intranet, but you can establish VPN connections via the Internet to achieve interconnection between VPCs.

A. True

B. False

Object Storage Service (OSS) supports sub accounts, and you can allocate access permissions to different buckets for each sub account.

A. True

B. False

A popular worldwide forum stores static resources in OSS and accelerates access using CON Users find that the speed of downloading files from the forum has been greatly improved, but uploading files is slow due to the long data transmission distance, resulting in a bad access experience In order to improve the speed of uploading files for users in this forum, so that users in different regions can have a good access experience, we recommend that the forum can________.

A. Activate the PCDN service

B. Activate OSS in different regions as file storage, and synchronize data between OSS in different regions through cross-region replication

C. Enable the transmission acceleration service for O: Enable OSS

D. Enable OSS static website hosting