Pass ACA-Cloud1 Exam in First Attempt Guaranteed 2021 Dumps!
ACA-Cloud1 Dumps Full Questions - Exam Study Guide
NEW QUESTION 17
You can __________________ an ECS instance's configuration. (Choose two.)
- A. uploaded
- B. downgraded
- C. downloaded
- D. upgraded
Answer: B,D
Explanation:
Explanation/Reference: https://www.alibabacloud.com/help/doc-detail/25437.htm
NEW QUESTION 18
Alibaba Cloud relational database service (RDS) is a stable, reliable and elastic online database service. RDS supports below database types? (Choose three.)
- A. Oracle database
- B. PostgreSQL
- C. SQL Server
- D. MySQL
Answer: B,C,D
NEW QUESTION 19
A company uses Alibaba Cloud SLB and Auto Scaling at the same time, hoping this combination can help save O&M cost and provide a stable and reliable system.
However, because they do not have relevant experience, the company's engineers listed some precautions based on their understanding, and turned the list to you for advice.
As an expert of Alibaba Cloud, you tell them only is correct.
- A. All backend servers under the same SLB instance must have the same configuration
- B. SLB instances must have Health Check enabled, or they cannot be used together with Auto Scaling
- C. All ECS instances under the same SLB instance must be running on the same operating system
- D. All backend servers under the same SLB instance must be in the same Scaling Group
Answer: B
Explanation:
Reference:
https://www.alibabacloud.com/blog/comprehensive-upgrade-of-alibaba-cloud-auto-scaling- product_594112
NEW QUESTION 20
Alibaba Cloud does not support Intranet communication between products that are not in the same region, which does not mean ______________?
- A. ECS instances and other products in different regions, such as ApsaraDB for RDS and OSS instances, cannot communicate with each other on the intranet.
- B. Server Load Balancer cannot be deployed for ECS instances in various regions.
- C. ECS instances in different regions cannot communicate with each other on the intranet.
- D. Server Load Balancer can be deployed for ECS instances in various regions.
Answer: A
Explanation:
Explanation/Reference: https://www.alibabacloud.com/help/doc-detail/40654.htm
NEW QUESTION 21
Which of the following statements is wrong when comparing RDS with self-built database?
- A. RDS provides automatic backup while self-built database requires you to prepare storage space for backup copies and regularly verify that these copies can be restored.
- B. RDS requires no O&M while self-built database requires a dedicated DBA for maintenance, which results in high HR cost.
- C. RDS features a high availability of 99.95% while self-built database requires you to implement data protection, primary-standby replication, and RAID all by yourself.
- D. Self-built database supports quick deployment and elastic scaling.
Answer: D
NEW QUESTION 22
A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group. He/she sets the "Minimum number of instances" to 6 and "Maximum number of instances" to 8.
After correctly configuring scaling settings, the customer adds a scaling rule "Adjust to 10 ECS instances", and creates a scheduled task based on this rule.
And then, the customer checks the scaling group and see it already contains 6 valid ECS instances, he/she then enables this scaling group immediately.
How many ECS instances are left in the scaling group when the scheduled task is activated once?
- A. Eight
- B. Ten
- C. Five
- D. Six
Answer: C
NEW QUESTION 23
Which of the following ECS instance configurations can't be changed if we don't change instance type?
- A. Mem size
- B. Number of data disk
- C. System disk size
- D. Data disk size
Answer: C
NEW QUESTION 24
ECS can be used along with to store static images, videos, and reducing storage fees.
- A. VPC
- B. RDS
- C. OSS
- D. Server Load Balancer
Answer: C
Explanation:
Reference:
http://static-aliyun-doc.oss-cn-hangzhou.aliyuncs.com/download/pdf/DNA0011858383_en- US_intl_190320132947_public_91775d442a4b315acafcb25df8bcc84f.pdf
NEW QUESTION 25
Which of the following statements about file uploading to OSS strategy is not correct?
- A. If you are using OSS to store some log files which are continuously being updated, you better choose streaming method to be able to append to one existing object instead of overwriting.
- B. If you are uploading some small files (<1m), you can choose using put method to be able finish uploading in one http request.
- C. All file uploading method provided by Alibaba Cloud OSS service will support resuming from break point.
- D. If you need to upload very large file you better use multi-part uploading to get the capability of resuming from break point.
Answer: A
NEW QUESTION 26
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
Explanation:
Reference:
https://www.alibabacloud.com/product/anti-ddos
NEW QUESTION 27
Multiple lower-configuration I/O-optimized ECS instances can be used with ___________ to deliver a high- availability architecture.
- A. Server Load Balancer
- B. RDS
- C. Auto Scaling
- D. OSS
Answer: A
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 existing ECS instances into the scaling group, whose status however must be _________.
- A. Preparing
- B. Running
- C. Stopped
- D. Created
Answer: B
Explanation:
Explanation/Reference: http://static-aliyun-doc.oss-cn-hangzhou.aliyuncs.com/download/pdf/DNESS1876951_en- US_intl_181115175025_public_176152014821b385708e5290da11a0fe.pdf (14)
NEW QUESTION 29
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. VPC
- B. RDS
- C. Auto Scaling
- D. Server Load Balancer
Answer: C
Explanation:
Reference:
https://www.alibabacloud.com/blog/designing-a-cloud-based-architecture-for-internet-of-vehicles- iov-series-ii_594263
NEW QUESTION 30
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. Open a ticket to Alibaba Cloud help desk.
- B. Check ECS or CloudMonitor product documents.
- C. Look for answers in Alibaba Cloud forum.
- D. You cannot obtain any help from Alibaba Cloud.
Answer: A,B,C
NEW QUESTION 31
A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group. He/she sets the "Minimum number of instances" to 6 and "Maximum number of instances" to 8.
After correctly configuring scaling settings, the customer adds a scaling rule "Remove 5 ECS instances", and creates a scheduled task based on this rule.
And then, the customer checks the scaling group and see it already contains 8 valid ECS instances, he/she then enables this scaling group immediately.
How many ECS instances are left in the scaling group when the scheduled task is activated once?
- A. Five
- B. Zero
- C. One
- D. Six
Answer: B
Explanation:
Explanation
NEW QUESTION 32
......
Alibaba Cloud Computing Free Certification Exam Material from Prep4sureExam with 75 Questions: https://www.prep4sureexam.com/ACA-Cloud1-dumps-torrent.html
Use Real ACA-Cloud1 - 100% Cover Real Exam Questions: https://drive.google.com/open?id=1bgClga0yj47Q1DLVOEPvNX5_wzmkChsW