Alibaba Cloud Computing ACA-Cloud1 Dumps | Updated Dec 13, 2021 - PracticeTorrent
Master 2021 Latest The Questions Alibaba Cloud Computing and Pass ACA-Cloud1 Real Exam!
Alibaba Cloud ACA-Cloud1 Exam Syllabus Topics:
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NEW QUESTION 13
Alibaba Cloud Object Storage Service (OSS) is a massive, highly available, secured and cost effective storage service. OSS is superior than self-built storage in all these aspects. Which of the following advantage relates to the high availability of OSS?
- A. The following features are available: Multiple Authentication and Authorization mechanism, Whitelist, Anti- leech URL, and Master-Sub Account
- B. Data has to be backed up by customer manually, which is time-consuming and labor-intensive.
- C. Data Reliability is not less than 99.99999999%. Data is backed up automatically with multiple redundant copies.
- D. Availability actually relies on the underlying hardware, which can break down easily. Once the hard disk malfunctions, it can also lead to permanent data loss.
Answer: C
NEW QUESTION 14
Alibaba Cloud Monitor service stems from years of experience of server monitoring technology in Alibaba group, leveraging the powerful data analysis capability of Alibaba cloud computing platform to provide monitoring service for various clients' applications and servers. A user receives an alert saying that the IOPS utilization rate for an ECS instance exceeds 80%. Yet, he/she is not sure how to handle the situation, the user may obtain help from Alibaba Cloud through the below methods? (Choose three.)
- A. Look for answers in Alibaba Cloud forum.
- B. You cannot obtain any help from Alibaba Cloud.
- C. Open a ticket to Alibaba Cloud help desk.
- D. Check ECS or CloudMonitor product documents.
Answer: A,C,D
NEW QUESTION 15
A video streaming company uses SLB to distribute user requests to 30 ECS instances (the 30 ECS instances have the same configuration). Yet, the company finds that the service traffic soars dramatically every night from 20:00 to 02:00. According to their calculation, the evening traffic is 100% higher than the traffic in other periods of time. To properly respond to user requests, which of the following methods is most preferred from the perspective of cost and implementation simplicity?
- A. Create 30 ECS instances based on the custom image and add them to SL Then, configure weights for these ECS instances to respond to user requests every night from 20:00 to 02:00, and reset those weights to zero for other periods of time.
- B. Configure Auto Scaling appropriately to automatically add or reduce ECS instances.
- C. Manually create 30 ECS instances using the custom image, and then add them to SLB every night before 20:00 and remove them after 02:00.
- D. Configure Auto Scaling appropriately to automatically upgrade/downgrade the ECS instances.
Answer: B
NEW QUESTION 16
Your website has high volume of traffic and sudden spikes for a very short time. In this scenario, can manage traffic peak efficiently and maintain a consistent user experience.
- A. Auto Scaling
- B. VPC
- C. Server Load Balancer
- D. RDS
Answer: A
Explanation:
Reference:
https://www.alibabacloud.com/blog/designing-a-cloud-based-architecture-for-internet-of-vehicles- iov-series-ii_594263
NEW QUESTION 17
Which of the followings are not the operations that you can do on a cloud disk snapshot? (Choose two.)
- A. snapshot download
- B. snapshot rollback
- C. snapshot duplicate
- D. snapshot deletion
Answer: A,C
Explanation:
Explanation/Reference: https://www.alibabacloud.com/help/doc-detail/52045.htm#section-1ff-9s6-3i5
NEW QUESTION 18
Some applications may encounter large traffic fluctuations within a short period. When ECS is used with
, the number of ECS instances is automatically adjusted based on traffic.
- A. Auto Scaling
- B. OSS
- C. Server Load Balancer
- D. RDS
Answer: A
Explanation:
Reference:
https://www.alibabacloud.com/help/doc-detail/25371.htm
NEW QUESTION 19
Alibaba Cloud provides anti-DDoS products of different levels. If the service availability needs to be kept at 99.9% or higher under DDoS attacks, which of the following is the MOST suitable product?
- A. Anti-DDoS Service Basic
- B. Situation Awareness
- C. Managed Security Service
- D. Anti-DDoS Service Pro
Answer: A
NEW QUESTION 20
Multiple lower-configuration I/O-optimized ECS instances can be used withto deliver a high- availability architecture.
- A. Server Load Balancer
- B. Auto Scaling
- C. OSS
- D. RDS
Answer: A
NEW QUESTION 21
ECS can be used along with ______ to store static images, videos, and reducing storage fees.
- A. VPC
- B. Server Load Balancer
- C. RDS
- D. OSS
Answer: D
Explanation:
Explanation/Reference: http://static-aliyun-doc.oss-cn-hangzhou.aliyuncs.com/download/pdf/DNA0011858383_en- US_intl_190320132947_public_91775d442a4b315acafcb25df8bcc84f.pdf
NEW QUESTION 22
Alibaba Cloud provides powerful security services (the same level of security services used to support Alibaba Group double 11 shopping festival). However, you have to pay first before using any of the security services.
- A. False
- B. True
Answer: A
NEW QUESTION 23
You built an online shop using Alibaba Cloud services (ECS, RDS, ...etc.) and very soon you'll have a campaign that every customer that invites 3 friends will get a 50% off coupon. To avoid HTTP flood attacks and ensure only genuine customers (not bots) joining the event, which security product should you choose?
- A. Server Guard
- B. Anti-DDoS pro
- C. Anti-DDoS Basic
- D. WAF
Answer: D
Explanation:
Explanation
After adding your website to the WAF protection list, you can enable HTTP Flood protection and select an appropriate protection mode for the website
NEW QUESTION 24
Auto Scaling can automatically remove unhealthy ECS instances from the scaling group (this feature is called Elastic Self-Health). Yet, after removal, the user has to manually add equivalent amount of new ECS instances back to the scaling group.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 25
Anti-DDoS is one of the major features in Alibaba Cloud Security Service. Many websites have experienced different types of DDoS attacks, an accurate understanding of DDoS is crucial to protecting websites. Which of the following descriptions about DDoS attack is the most accurate one?
- A. The purpose of DDoS attack is to steal confidential information.
- B. The main target for DDoS attack is the database.
- C. DDoS attack will try to crack the password through a large number of attempts.
- D. The main purpose of DDoS attack is to make the target server unable to provide service normally, which is one of the network attacks that are most difficult to defend.
Answer: D
NEW QUESTION 26
Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. Which of the following application scenarios are suitable for Auto Scaling?
(Choose three.)
- A. When an ECS instance reacts abnormally in a scaling group, Auto Scaling will create a new ECS instance to take over the computing tasks conducted by the faulty instance.
- B. You need to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be reduced automatically to save costs when business needs drop.
- C. You want to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be automatically upgraded (with more Memory, more powerful CPU) when needed.
- D. You need to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be added seamlessly to address traffic peaks and surges.
Answer: A,B,D
NEW QUESTION 27
As a cloud computing service provider, Alibaba Cloud provides security services including. (Choose two.)
- A. IP white list setting for RDS.
- B. Security operation for underlying hardware of cloud computing.
- C. Application maintenance in ECS instances.
- D. Security isolation between cloud computing tenants.
Answer: B,D
NEW QUESTION 28
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: C
NEW QUESTION 29
Your friend purchases some Alibaba Cloud resources and uses them to build an online training website. Before the site goes online, your friend wants to perform some performance tests but doesn't know how to do it. In this case, which of the following services can help?
- A. None Of The Above
- B. After-Sales Support Service
- C. Support Ticket Service
- D. Load and Performance Testing Service
Answer: B
Explanation:
Explanation/Reference: https://www.alibabacloud.com/support/after-sales
NEW QUESTION 30
You can retrieve data directly from an ECS Image and use it right away.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 31
Alibaba Cloud Object Storage Service (OSS) is a massive, highly available, secured and cost effective storage service. OSS is superior than self-built storage in all these aspects. Which of the following advantage relates to the high availability of OSS?
- A. The following features are available: Multiple Authentication and Authorization mechanism, Whitelist, Anti- leech URL, and Master-Sub Account
- B. Data has to be backed up by customer manually, which is time-consuming and labor-intensive.
- C. Data Reliability is not less than 99.99999999%. Data is backed up automatically with multiple redundant copies.
- D. Availability actually relies on the underlying hardware, which can break down easily. Once the hard disk malfunctions, it can also lead to permanent data loss.
Answer: C
Explanation:
Reference:
https://www.alibabacloud.com/blog/alibaba-cloud-object-storage-vs--ibm-cloud-and-oracle-cloud- equivalent_293464
NEW QUESTION 32
Server Load Balancer can help protect fromattack.
- A. SQL injection
- B. Virus
- C. DDoS
- D. Ransomware
Answer: C
NEW QUESTION 33
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