ACP-Sec1 試験問題を無料オンラインアクセス

Which of the following services can be protected by the Alibaba Cloud Security Center's anti-brute force password cracking function? (Number of answers 3)

• A.MySQL database service SQLServer database service
• B.File transfer service (FTP)
• C.Web service (HTTP)
• D.Windows remote desktop service (RDP) Linux remote control service (SSH)

To improve ECS instance security, the administrator does not want users on public network to check whether an ECS instance is online using the ping command. Which of the following reinforcement measures designed by the administrator is NOT feasible?

• A.Enable a security group, and reject ICMP for public network access.
• B.Enable a security group and only allow access from ports 80 and 25 of the public network through TCP
• C.Enable an operating system firewall for the ECS instance, and reject ICMP for public network access.
• D.Resolve the IP address of the ECS instance to an uncommon level 4 domain name, and point the promotional domain name to the level 4 domain name through CNAME

The protection rules of Alibaba Cloud WAF are updated in real time after a user makes changes in WAF configuration page.

• A.True
• B.False

You have set an alert policy for the disk usage of an ECS instance by using Alibaba Cloud CloudMonitor Each measurement cycle lasts for 5 minutes, during which the average disk usage is measured If the average disk usage exceeds 80% for five consecutive measurement cycles, an alert will be reported After your average disk usage exceeds 80%, how long will it take to receive an alert with the best case scenario?

• A.30 minutes
• B.40 minutes
• C.0 minutes
• D.20 minutes

Anti-DDoS is one of the major products of Alibaba Cloud Security service Many websites have suffered DDoS attacks of different types. Therefore, accurate understanding of DDoS attacks is critical to the website security protection. Which of the following statements about DDoS attacks is the MOST accurate?

• A.A DDoS attack cracks the servers logon password by means of numerous attempts
• B.DDoS attacks primarily target a database
• C.The purpose of a DDoS attack is to steal confidential information
• D.The main purpose of a DDoS attack is to prevent the target server from providing normal services