Updated Feb-2022 ACP-Cloud1 Exam Practice Test Questions
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NEW QUESTION 11
You need to create a new ECS instance for a 10-data test. Which of the following billing methods is most cost-effective?
- A. Subscription
- B. Pay-As-You-Go
- C. Preemptible
- D. Pay-AS-You-Go with Savings Plan
Answer: A
NEW QUESTION 12
The difference between public and private Server Load Balancers (SLBs) is that private SLBs connect to their backend ECS instances using the private network (Intranet) while public SLBs connect to their backend ECS instances using the public network (Internet).
- A. True
- B. False
Answer: B
NEW QUESTION 13
Recently, response speed of a certain Alibaba Cloud Elastic Compute Service (ECS) instance is unacceptably slow. By using CloudMonitor we discovered that the ECS instance utilizes more than 80% of the assigned bandwidth.
Which of the following approach can address this issue and without the need to reboot the ECS instance?
- A. None of the above
- B. Upgrade the CPU and memory of the ECS ins
- C. Upgrade the bandwidth of the ECS instance
- D. Add a disk to the ECS instance
Answer: C
NEW QUESTION 14
After stopping an Alibaba Cloud Elastic Compute Service (ECS) instance, since the ECS instance is stopped, you will not be charged for anything related to that ECS instance until you start the instance again regardless of which region the instance is located in.
- A. True
- B. False
Answer: A
NEW QUESTION 15
When using Alibaba Cloud SLB to forward layer 7 (HTTP) service requests. SLB will replace the IP address in the HTTP header file to forward requests.
Therefore the source IP address that can be seen on the backend ECS instance is the IP address of SLB instead of the clients real IP address.
- A. True
- B. False
Answer: A
NEW QUESTION 16
Which of the following statements is NOT correct, when comparing RDS with a self-built database?
- A. RDS requires no O&M while self-built database require a dedicated DBA for maintenance, which results in high HR costs.
- B. RDS provides automatic backup while self-built databases require you to prepare storage space for backup copies and regularly verify that these copies can be restored.
- C. RDS features a high availability of 99 95% while self-built databases require you to implement data protection primary-standby replication, and RAID all by yourself.
- D. Self-built database support quick deployment and elastic scaling.
Answer: D
NEW QUESTION 17
Many of Alibaba Cloud services provide highly reliable data storage capacity. For example, Object Storage Service (OSS) promises that its data reliability is no less than 99 99999999%. This high data reliability is solely achieved by RAID 0+1 redundancy technology.
- A. True
- B. False
Answer: A
NEW QUESTION 18
Which of the following privilege is required to manually install Alibaba Clod Security Center on the server?
- A. System administrator privilege
- B. FTP service privilege
- C. Common user privilege
- D. Database Access privilege
Answer: C
NEW QUESTION 19
The daily PV volume of a community website is as high as 20 million. The applications of the website are deployed on ECS instances while logs are stored on the data disks of a single ECS instance.
Now, the website wants to extend the log retention period to 24 months and ensure that logs can be quickly downloaded when needed. The current data disks they have can only help retain three months of logs In this case, ________ is the ideal solution for solving the log retention issue.
- A. OSS
- B. CDN
- C. Container Service
- D. ApsaraDB for RDS
Answer: B
NEW QUESTION 20
Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies It supports adding an existing ECS instance into the scaling group but imposes certain requirements on instance region In this case, which of the following statements is true?
- A. The instance and the scaling group can be in different regions and zones.
- B. The instance and the scaling group must be in the same region but not necessarily the same zone.
- C. The instance and the scaling group must be in the same region and zone.
- D. Each scaling group can span up to two regions. After adding the ECS instance, the number of regions of all the ECS instances in the scaling group must be no greater than two.
Answer: B
NEW QUESTION 21
A large enterprise wants to migrate the entire business system to Alibaba Cloud to save the overall IT procurement and O&M costs From the security aspect, the company requires that
1. Must support secured remote O&M because the administrator often takes business trips.
2. Networks between subsystems should be isolated because subsystems are independently used by different departments Which of the followings should be used together to meet the company's requirements? (Number of correct answers: 3)
- A. Use the security group function of the ECS instance, and respectively deploy ECS instances running different subsystems to independent security groups.
- B. Create multiple ECS instances in the VPC to install subsystems of different departments- Allocate only Intranet IP addresses to all ECS instances, and deploy them in the same security groups.
- C. Build an independent ECS instance as the bastion host or remote logon and O&M, and authorize the bastion host to access ECS instances running other subsystems.
- D. Enable the VPN on the bastion host (or directly use the VPN image on Alibaba Cloud Marketplace). The administrator uses VPN encrypted communication during O&M.
Answer: B,C,D
NEW QUESTION 22
Object Storage Service (OSS) supports sub accounts, and you can allocate access permissions to different buckets for each sub account.
- A. True
- B. False
Answer: B
NEW QUESTION 23
Many websites have suffered DDoS attacks of different volumes. Therefore, accurate understanding of DDoS attacks is critical to website security protection. Which of the following statements about DDoS attacks is the MOST accurate?
- A. A DDoS attacks crack the server's logon password by means of a massive number of attempts.
- B. The purpose of a DDoS attack is to steal confidential information.
- C. The main purpose of a DDoS attack is to prevent the target server from providing normal services. Currently, the DDoS attack is one of the strongest and most indefensible website attacks.
- D. DDoS attacks primarily target databases.
Answer: C
NEW QUESTION 24
SLB is a load balancing service that distributes traffic to multiple cloud servers It provides a wide range of functions to meet the needs of various business scenarios If a user wants to use SLB and ECS instances to deploy two-way authenticated HTTPS websites, the following statement is correct_______.
- A. You need to host server SSL certificates and client CA certificates on SLB
- B. SLB can only host SSL certificates, not CA certificates.
- C. SLB can only support HTTPS one-way authentication
- D. SLB can only host CA certificates, not SSL certificate
Answer: C
NEW QUESTION 25
Alibaba Cloud Content Delivery Network (CDN) is a distributed network that is built and overlaid on the bearer network Moreover it is composed of edge node server clusters distributed across different regions. It replaces the traditional data transmission mode, which is centered on Web servers. When using Alibaba Cloud CDN, a user's request wilt first reach the edge node, and then receive data from the origin site by means of back-to-source Moreover, the admin can obtain visitor's real IP on the origin site. Which of the following descriptions relate to "obtaining visitors real IP" are correct? (Number of correct answers: 2)
- A. "Visitor's real IP" is saved in "X-Forwarded-For" header in HTTP protocol. It can be directly obtained in the user-defined LOG of Apache and Nginx.
- B. "Visitor's real IP" can only be obtained by modifying the application
- C. You can one-step activate the "recording visitor's real IP" function in Alibaba Cloud CDN console to directly view the visitor's real IP in the access log.
- D. In Windows, if IIS is used: after installing "F5XForwardedFor" extension module. 'Visitor's real IP" can then be seen in the log.
Answer: A,D
NEW QUESTION 26
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