2024 Latest ACP-Cloud1 dumps - Instant Download PDF
Updated Verified ACP-Cloud1 Downloadable Printable Exam Dumps
NEW QUESTION # 11
If an administrator often needs to manage multiple ECS instances in an Alibaba Cloud VPC through the Internet Which of the following solutions can meet this need at low costs and without affecting system security.
- A. Bind an EIP to each of the ECS instances, and Jog on to each of these ECS instances to manage them.
- B. None of these answers are correct.
- C. Choose an ECS instance from VPC and make it as the bastion host And then, apply an EIP and bind it to this ECS instance. After that the administrator can manage other ECS instances through this bastion host.
- D. Modify the VPC Security Group policy, to allow access from the Internet.
Answer: B
NEW QUESTION # 12
A Virtual Private Cloud (VPC) is an isolated network environment that is completely isolated from each other The following statements about VPC are correct_________. (Number of correct answers: 2)
- A. Each VPC has an independent tunnel ID, and a tunnel ID corresponds to a virtualized network.
- B. The internal networks of different VPCs are completely isolated and can be interconnected through IP addresses mapped to the outside.
- C. ECS instances in a VPC use security group firewalls for Layer 2 network access control.
- D. Subnets can be divided like the traditional network environment. Different cloud servers within each subnet are connected by the same router and different subnets are interconnected by switches.
Answer: B,D
NEW QUESTION # 13
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. 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.
- 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. The instance and the scaling group can be in different regions and zones.
Answer: B
NEW QUESTION # 14
For ECS and RDS instances under different Alibaba Cloud accounts but in the same region, which of the following statements is NOT correct for migrating self-built MySQL databases (running on ECS) to RDS?
- A. The data cannot be migrated.
- B. The data can be imported via the public network.
- C. The data can be imported via the Intranet
- D. The data can be imported by running mysqldump.
Answer: D
NEW QUESTION # 15
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 # 16
An online education website is built based on ECS. SLB and Auto Scaling, which greatly reduces resource cost, O&M cost and without compromising system stability and user experience.
Now. the website admin wants to keep the user information (such as source IP, accessed URLs, and duration on each page) for analysis to support their upcoming campaign events In this case, which of the following statements is NOT correct?
- A. Synchronize user-related access information to OSS in real time or quasi real time for further use
- B. Save user-related access information to ApsaraDB for RDS in real time or quasi real time, which can then be used for performing query and analysis.
- C. Let each ECS instance in the scaling group keeps the user access information it processes Thus, the data saved by these ECS instances can be accessed and analyzed at any time, making the solution not only simple, but also efficient reliable, and cost-effective.
- D. Synchronize user-Synchronize user-related access information to ApsaraDB for Memcache in real time or quasi real time. Then, access Memcache using an application or make the data in Memcache persistent based on certain rules and then can use the persistent data for further analysis.
Answer: D
NEW QUESTION # 17
After creating an RDS for MySQL read-only instance, which of the following CAN NOT be performed by the read-only instance in RDS management console?
- A. Parameter configuration
- B. SQL log auditing
- C. Specification change
- D. Intranet/Internet switchover
Answer: A
NEW QUESTION # 18
When using Alibaba Cloud SLB. you can set different weights for backend ECS instances The higher the weight of a backend ECS instance the more load will be assigned to it An SLB instance has 5 ECS instances in the backend server pool, all of which are healthy Among these 5 ECS instances, the weight of ecs_inst1 is set to 100. Which of the following statements is correct?
- A. 100% of loads will be assigned to ecs__inst1, and the remaining 4 ECS instances will stay idle
- B. Based on request level parameters of external requests, all requests with a request level parameter of 100 will be transferred to ecs_inst1
- C. Based on SLB's working mechanism, approximately 20% of loads will be assigned to ecs_inst1
- D. We do not know the weight settings of the remaining 4 ECS instances, so we cannot tell what would happen
Answer: D
Explanation:
Explanation
When using Alibaba Cloud SLB, you can set different weights for backend ECS instances. The higher the weight of a backend ECS instance, the more load will be assigned to it. However, the load distribution is not based on the absolute value of the weight, but on the proportion of the weight in the total weight of all healthy backend ECS instances. For example, if there are two healthy backend ECS instances with weights of 100 and
200 respectively, the first instance will receive 33.3% of the load, and the second instance will receive 66.7% of the load. Therefore, to determine the load distribution of the 5 ECS instances in the question, we need to know the weight settings of the remaining 4 ECS instances. Without this information, we cannot tell what would happen. The other options are incorrect because they are based on wrong assumptions or misunderstandings of the SLB weight setting mechanism.
NEW QUESTION # 19
After activating an Alibaba Cloud Elastic Compute Service (ECS) instance, you want to monitor the status of the ECS instance via Alibaba Cloud console. Therefore: you must activate and purchase Alibaba Cloud CloudMonitor service to meet this demand.
- A. False
- B. True
Answer: A
Explanation:
Explanation
You do not need to activate and purchase Alibaba Cloud CloudMonitor service to monitor the status of the ECS instance via Alibaba Cloud console. CloudMonitor is a service that monitors Alibaba Cloud resources and Internet applications. CloudMonitor provides a one-stop, out-of-the-box, and enterprise-class monitoring solution1. CloudMonitor collects monitor metrics of Alibaba Cloud resources and custom metrics and enables you to view and understand the usage of the cloud resources, and the health of your business2. CloudMonitor allows you to monitor the metrics of Alibaba Cloud services, detect the availability of websites hosted on ECS instances or carrier servers, and configure alert rules for specified metrics3. However, CloudMonitor is not a prerequisite for monitoring the status of the ECS instance via Alibaba Cloud console. You can monitor the status of the ECS instance via Alibaba Cloud console without activating and purchasing CloudMonitor service.
You can view the basic information, configuration, security group, and tags of the ECS instance in the console. You can also view the CPU, memory, disk, and network usage of the ECS instance in the console. You can also use the Cloud Assistant feature to run commands on the ECS instance remotely4.
NEW QUESTION # 20
An enterprise hosts their servers (include both Linux and Windows servers) in a traditional IDC Every night hackers with IP addresses from many countries try to crack the password of their servers, making the administrator terribly worried about this However because of work requirements the remote management port of these servers must be opened to public network.
The administrator heard that Alibaba Cloud has solutions that can help customers improve the security of their systems Therefore, he/she wants to migrate the system to Alibaba Cloud. Which of the following functions should the administrator activate in Alibaba Cloud to reduce the possibility of brute force password cracking?
- A. Security Center
- B. Cloud Firewall
- C. CloudMonitor
- D. Anti-DDoS Origin Basic Edition
Answer: B
NEW QUESTION # 21
You are designing a solution for a startup company, the proposed solution is like this You suggest they use ECS instances to process requests from mobile App clients, and use SLB to distribute data traffic and ensure the load across each backend ECS instance is balanced.
Moreover to deal with volatile fluctuations in business volume (page views are much higher on the weekends), you also suggest they use Auto Scaling to dynamically increase or reduce computing resources.
The company is satisfied with the solution you proposed. However, they have one concern that when removing an idle instance from the scaling group: if Auto Scaling shuts the instance down directly, the service running on that instance will be abruptly terminated, resulting in poor user experience.
In order to eliminate your customer's concern, which of the following solutions should you recommend them?
- A. Find the ECS instance that is going to be removed from the backend server pool of the SLB instance, and manually remove this instance from the backend server pool Applications running on this ECS instance will normally return results, but this instance will not be assigned with new requests.
- B. First, insert a script into the image for creating the ECS instance Second, make the script run automatically when the operating system in this ECS instances is about to shut down. This script contains the processing logic that can ensure the instance finish all the remaining tasks before shutting down.
- C. Use the Lifecycle Hook function embedded m Auto Scaling Define a suitable timeout and a web hook to do the necessary work before the instance is removed.
- D. Find the ECS instance that is going to be removed from the backend server pool of the SLB instancer and automatically set the weight of this ECS instance to 0. This instance will not be assigned with new requests, and will be automatically removed from the backend server pool after existing tasks are completed.
Answer: C
Explanation:
Explanation
According to the Alibaba Cloud Auto Scaling documentation1, the Lifecycle Hook feature allows you to perform custom operations on instances that are added to or removed from a scaling group. You can define a lifecycle hook to specify a timeout period and a web hook URL. When an instance is about to be removed, Auto Scaling sends a notification to the web hook URL and waits for a response. During the timeout period, you can perform the necessary operations on the instance, such as gracefully shutting down the service, backing up the data, or sending a custom notification. After the operations are completed, you can send a response to the web hook URL to confirm the removal of the instance. This way, you can ensure that the instance is removed without affecting the user experience or causing data loss. Therefore, option D is the best solution to eliminate the customer's concern. References: Lifecycle hooks and Alibaba Cloud Auto Scaling.
NEW QUESTION # 22
When creating an ECS instance in your Alibaba Cloud VPC, you must specify a VSwitch for that instance at the same time. Otherwise, you will not be able to create this ECS instance.
- A. True
- B. False
Answer: A
NEW QUESTION # 23
RDS provides whitelist access policies. You can set permitted IP addresses and IP network segments to effectively prevent hackers from attacking the server by port scanning.
- A. True
- B. False
Answer: A
Explanation:
Explanation
RDS provides whitelist access policies. You can set permitted IP addresses and IP network segments to effectively prevent hackers from attacking the server by port scanning1. A whitelist is a list of IP addresses or CIDR blocks that are allowed to access an RDS instance. By default, the whitelist is empty, which means that no IP address can access the RDS instance. You can add IP addresses or CIDR blocks to the whitelist to allow access from specific sources. You can also modify or delete the whitelist as needed2. Whitelist access policies help improve the security of your RDS instance and protect your data from unauthorized access3.
NEW QUESTION # 24
You have created two Alibaba Cloud VPCs in two different regions To establish communication between these two VPCs via the Intranet, you can________.
- A. Use the VRouter to create a new route table to enable the communication
- B. Use CEN to establish communication between VPCs
- C. Create a new access rule through the Security Group to enable the communication
- D. No operation is needed, as VPCs under the same account are connected through the Intranet by default
Answer: B
Explanation:
Explanation
CEN is a service that allows you to create a global network for rapidly building a distributed business system with a hybrid cloud computing solution. CEN enables you to build a secure, private, and enterprise-class interconnected network between VPCs in different regions and your local data centers1. CEN uses transit routers deployed in different regions to build a full-mesh network on top of the Alibaba Cloud global transmission network. CEN enables global network communication: The two transit routers can be connected through multiple highly available and highly reliable lines2. To establish communication between two VPCs in different regions via the intranet, you can use CEN to attach the VPCs to the transit routers in their respective regions, and then create a bandwidth plan to allocate bandwidth resources for inter-region connections3. This way, you can avoid the complexity and cost of setting up VPN or Express Connect connections between the VPCs, and enjoy the benefits of CEN, such as large-scale and on-demand networking, simplified network topology, flexible management, globally connected network, shortest-path algorithm, high redundancy, automatic route learning and advertisement, and bandwidth sharing and management2. References: Introduce Cloud Enterprise Network CEN and how ... - Alibaba Cloud Academy, Cloud Enterprise Network (CEN) - Alibaba Cloud, Attach a network instance to a CEN instance - Cloud Enterprise Network - Alibaba Cloud
NEW QUESTION # 25
To meet business requirements, a user requires that the backend server of an SLB instance include a primary ECS instance and a secondary ECS instance. When the primary instance is working properly, the traffic is only forwarded to the primary ECS, when the primary instance is down, traffic is switched to the standby instance.
In this case, you can create an active/standby server group on the backend of the SLB instance Which kind of listener supports this feature? (Number of correct answers: 2)
- A. UDP
- B. TCP
- C. HTTP
- D. HTTPS
Answer: B,D
Explanation:
Explanation
Active/standby server groups are a feature of Server Load Balancer (SLB) that allows you to configure a primary ECS instance and a secondary ECS instance for the backend of an SLB instance1. When the primary instance is working properly, the traffic is only forwarded to the primary ECS. When the primary instance is down, traffic is switched to the standby instance1. This feature is supported by TCP and HTTPS listeners, but not by HTTP and UDP listeners1. TCP and HTTPS listeners support session persistence, which ensures that requests from the same client are always forwarded to the same backend server2. HTTP and UDP listeners do not support session persistence, and they use round-robin or weighted round-robin algorithms to distribute traffic among the backend servers2. References: 1: Create an active/standby server group 2: [Configure a listener]
NEW QUESTION # 26
RDS accounts can be used to connect with the databases created on a given RDS instance. Each account can be bound with multiple databases. Yet, the read/write permissions of each database can only be assigned to one RDS account
- A. False
- B. True
Answer: A
Explanation:
Explanation
RDS accounts can be used to connect with the databases created on a given RDS instance. Each account can be bound with multiple databases. However, the read/write permissions of each database can be assigned to multiple RDS accounts, not just one. For example, you can create an account with read-only permission for all databases, and another account with read-write permission for a specific database. This way, you can manage the access control of your databases more flexibly and securely. References: Introduction to ApsaraDB RDS - Alibaba Cloud Document Center - User Management - Account Permissions
NEW QUESTION # 27
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
Explanation:
Explanation
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 client's real IP address. However, SLB also provides a feature called X-Forwarded-For (XFF) that can help you obtain the real IP address of the client. XFF is a standard HTTP header field that records the original IP address of the client and the proxy servers that the request passes through. You can enable XFF on the SLB console or by using the API, and then configure your backend ECS instance to parse the XFF header field and get the real IP address of the client. References: 1 - SLB overview - Alibaba Cloud Document Center - Layer 7 listeners - X-Forwarded-For
NEW QUESTION # 28
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. Preemptible
- C. Pay-AS-You-Go with Savings Plan
- D. Pay-As-You-Go
Answer: A
NEW QUESTION # 29
Company A constructed a sales management platform using three Elastic Compute Service (ECS) instances. One of the instances runs MySQL, and is used as the database server. The other two instances are used as Web servers After some time, the number of employees in Company A dramatically increases, leading to higher sales volumes At the same time, the platform response speed is gradually decreasing too.
According to the report from CloudMonitor, the average CPU utilization rate of the two Web servers exceeds 70%, and database load reaches 75% Company A can select Alibaba Cloud_________ services.to cope with the issue and optimize the performance. (Number of correct answers: 2)
- A. Incorporate Server Load Balancer (SLB) and add additional ECS instances to relieve the load on existing ECS instances
- B. Replace the self-built MySQL database with ApsaraDB for RDS to obtain better database performance, and utilize RDS read-only instances to handle read-only requests
- C. Use Content Delivery Network (CDN) to enhance content loading speed
- D. Import database data into Object Storage Service (OSS) to share the storage pressure on the platform
Answer: A,B
NEW QUESTION # 30
As a concept stem from cloud computing, cloud storage service provides on-demand storage and data services to users through a unified interface Which of the following characteristics about cloud storage are correct? (Number of correct answers: 4)
- A. Management and maintenance: To prevent emergent service termination, users need to know the underlying detail like how the data is archived in the resource pool.
- B. Transparent service: Provides the service through a single SDK
- C. High scalability Storage capacity can be dynamically scaled to meet the needs.
- D. Service on demand Cloud storage has a huge resources pool, users can apply for and use the resources on demand.
- E. High reliability and availability: Provides very high reliability and availability through technologies like 3 redundant copies, automatic failure recovery, etc.
- F. Ultra-large scale: Data storage can reach TB or even PB level
Answer: B,C,D,E
NEW QUESTION # 31
......
Earning the Alibaba Cloud ACP-Cloud1 certification can provide numerous benefits to individuals and organizations. For individuals, the certification can help them advance their careers in cloud computing and improve their chances of getting hired by top organizations. For organizations, hiring certified ACP-Cloud1 professionals can help them improve their cloud infrastructure and ensure that they are using Alibaba Cloud's products and services effectively.
The Ultimate Alibaba Cloud ACP-Cloud1 Dumps PDF Review: https://www.actual4dumps.com/ACP-Cloud1-study-material.html
Achieve The Utmost Performance In ACP-Cloud1 Exam Pass Guaranteed: https://drive.google.com/open?id=1ROwT9KB5rR3gsZsHrD-3XuKK-6nkChZ1