Which of the following components is suitable for storing structured column-oriented large table data?

A certain company's business is often attacked by foreign countries, Hong Kong, Macau, Taiwan and China, and it is found through analysis.
1: Foreign, Hong Kong, Macao and Taiwan attack traffic accounted for 90%, and domestic attack traffic accounted for 10%.
2: Effective visit traffic from foreign countries, Hong Kong, Macao and Taiwan accounted for 5%, and domestic effective visit traffic accounted for 95%.
Therefore, the company's management decided that foreign, Hong Kong, Macao and Taiwan users will follow up to visit the company's business through the new domain name.
Which of the following options can quickly and effectively help this company block attacks or access to the original domain name by traffic from foreign countries, Hong Kong, Macao and Taiwan?

Huawei Cloud's cloud leased line service can provide BGP connection. Which of the following descriptions about the related configuration and features of the cloud leased line is wrong?

A company deployed a website service on Huawei Cloud. Recently, customer service reported that customers in a western city in China are slow to access the website. In order to speed up website access, the CON service of Huawei Cloud needs to be, and the website contains more dynamics. Contents, which of the following configuration methods is recommended for tenants to complete the configuration of the N acceleration service of this website?

A company has 2 VPCs in the same region of HUAWEI CLOUD. The network segment of the first VPC is 10. 10.0.0/16. One of the subnets is 10. 10. 1.0/24. The network segment of the two VFCs is 10.40.0.0/16. One of the subnets is 10.40.1.0/24. How does the company administrator need to configure the two subnets to communicate?