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Alibaba Cloud ACP-Cloud1 exam is a comprehensive exam that tests an individual's knowledge and skills in cloud computing. It is a valuable certification that is highly valued by employers in the IT industry. With the resources provided by Alibaba Cloud, candidates can prepare for the exam and demonstrate their expertise in cloud computing.
The ACP-Cloud1 certification exam is designed for individuals who are interested in cloud computing and have some experience in the field. ACP-Cloud1 exam covers a wide range of topics, including cloud computing concepts, cloud infrastructure, cloud security, cloud storage, and cloud network. ACP-Cloud1 exam is aimed at testing the candidate's knowledge and skills in these areas, and successful completion of the exam will demonstrate that the candidate has a thorough understanding of cloud computing services.
NEW QUESTION # 10
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. False
- B. True
Answer: A
Explanation:
Explanation
After stopping an Alibaba Cloud Elastic Compute Service (ECS) instance, you will not be charged for the instance usage fee or the public bandwidth fee (if applicable) until you start the instance again. However, you will still be charged for the disk usage fee and the snapshot usage fee (if applicable) regardless of which region the instance is located in. This is because the disks and snapshots are still occupying the storage space and need to be billed accordingly. Therefore, the statement is false. References: 1 - Billing FAQ - Alibaba Cloud Document Center - What fees do I need to pay after I stop a Pay-As-You-Go instance?
NEW QUESTION # 11
By using ApsaraDB for RDS to implement read/write splitting, which of the following can be achieved?
(Number of correct answers 2)
- A. Read/write requests to the database are separated.
- B. Both read and write requests are distributed to multiple instance
- C. Read requests are distributed to multiple instances.
- D. Write requests are distributed to multiple instances.
Answer: A,C
Explanation:
Explanation
ApsaraDB for RDS is a stable and reliable online database service that supports MySQL, SQL Server, PostgreSQL, MariaDB, and PPAS. ApsaraDB for RDS provides a read/write splitting feature that allows you to create read-only RDS instances, which can offload read requests from the primary RDS instance of your database system1. Read/write splitting is implemented by using a dedicated proxy endpoint, which routes read and write requests to different RDS instances based on the SQL statements and the read weights of the read-only instances2. By using ApsaraDB for RDS to implement read/write splitting, you can achieve the following benefits21:
Read requests are distributed to multiple instances. This can improve the read performance and availability of your database system, as well as balance the load among the read-only instances. You can specify the read weights of the read-only instances to control the distribution of read requests.
Read/write requests to the database are separated. This can reduce the pressure on the primary RDS instance and ensure the stability and security of the write operations. You only need to connect to the proxy endpoint, and the proxy will automatically route the read and write requests to the appropriate RDS instances.
The other statements are not correct, as write requests are not distributed to multiple instances, but only sent to the primary RDS instance2; and both read and write requests are not distributed to multiple instances, but separated by the proxy endpoint2. References: [ApsaraDB for RDS - Alibaba Cloud], Read/write splitting - - Alibaba Cloud Documentation Center, Use the read/write splitting feature to increase the processing capability of an ApsaraDB RDS instance
NEW QUESTION # 12
Alibaba Cloud Server Load Balancer (SLB) provides services for distributing traffic among multiple ECS instances SLB can expand the application system's service capacity through traffic distribution, and improve the system's availability by eliminating SPoFs (Single Points of Failure). Which of the following statements are correct? (Number of correct answers; 2)
- A. Before using SLB to provide external services, make sure that you have installed and correctly configured the SLB agent on all of the backend ECS instances.
- B. One of SLB's features is the Health Check. If some of the backend ECS instances are down, whereas other backend ECS instances can still provide services, then the system can continue to work normally.
- C. When recreating an SLB instance that has an Internet IP address, a new Internet IP address will be assigned to the SLB instance.
- D. SLB provides a function to automatically synchronize data among backend ECS instances using rsync remote synchronization.
Answer: B,D
NEW QUESTION # 13
When using Alibaba Cloud SLB, users can enable the health check function If a backend ECS instance A is running abnormally, SLB will isolate it and forward the requests to other ECS instances, and when the backend ECS instance A is back to normal, SLB will again forward requests to it.
- A. False
- B. True
Answer: B
NEW QUESTION # 14
If you need to accelerate a certain domain name (such as abc.com) via Alibaba Cloud Content Delivery Network (CDN), you must add it to "CDN Domain Name List" in the CDN service. After added successfully, you will get a CNAME address A Next, you need to modify domain name resolution and direct the domain name (such as abc.com) to CNAME address A. Which of the following is a NOT correct description of modifying domain name resolution?
- A. The DNS service provider used by the domain name (such as abc.com) can be companies other than Alibaba Cloud.
- B. If your domain name (such as abc.com) is transferred to Alibaba Cloud in advance, and managed by the same Alibaba Cloud account, you can perform one-step resolution modification.
- C. The CNAME address allocated to the domain name (such as abc.com) will point to an IP address. This IP address resolving mechanism is intelligently managed by Alibaba Cloud CDN system.
- D. The DNS service provider used by the domain name (such as abc.com) must support intelligent resolution.
Answer: D
Explanation:
Explanation
The DNS service provider used by the domain name (such as abc.com) does not need to support intelligent resolution, because the CNAME address allocated to the domain name will point to an IP address that is intelligently managed by Alibaba Cloud CDN system. Therefore, option C is not a correct description of modifying domain name resolution. References: What is Alibaba Cloud CDN? - CDN - Alibaba Cloud Documentation Center and Alibaba Cloud CDN
NEW QUESTION # 15
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. False
- B. True
Answer: B
Explanation:
Explanation
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. This is true according to the Alibaba Cloud documentation on ECS1. A VSwitch is a basic network device of a VPC and is used to connect different cloud product instances deployed in a VPC2. A VSwitch defines a network segment within a VPC and allows you to specify the IP address range, network mask, and gateway for the network segment2. When you create an ECS instance, you must select a VSwitch that belongs to the same zone as the ECS instance3. If you do not specify a VSwitch, the ECS instance will not be able to communicate with other cloud product instances in the VPC or access the Internet. References: 1: Create an instance by using the provided wizard - Elastic Compute Service - Alibaba Cloud Documentation Center 2: What is a VSwitch? - Virtual Private Cloud - Alibaba Cloud Documentation Center 3: Create an instance by using the advanced wizard - Elastic Compute Service - Alibaba Cloud Documentation Center : [VPC FAQ - Virtual Private Cloud - Alibaba Cloud Documentation Center]
NEW QUESTION # 16
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 can be imported via the Intranet
- B. The data cannot be migrated.
- C. The data can be imported by running mysqldump.
- D. The data can be imported via the public network.
Answer: C
NEW QUESTION # 17
Alibaba Cloud Object Storage Service (OSS) provides multiple file uploading modes for different scenarios, which are___________.
(Number of correct answers: 2)
- A. Directly copying to/from OSS using portable disks
- B. Direct upload from the OSS management console no matter how large the file is
- C. Upload using the SDK
- D. Uploading using the API
Answer: A,B
NEW QUESTION # 18
You would like to deploy your applications on Alibaba Cloud to meet requirements including cost reduction, improving service availability, fast deployment- and redundant backup Alibaba Cloud_________products can help meet these requirements (Number of correct answers 3)
- A. Utilizing Content Delivery Network (CDN) can meet the demands for redundant backup.
- B. Utilizing Server Load Balancer (SLB) and ECS instances can improve data reliability.
- C. Elastic Compute Service (ECS) image achieve efficient and convenient deployment.
- D. Elastic Compute Service (ECS) snapshot satisfies the needs of rapid recovery of applications and data.
- E. Reasonable selection of Regions/Zones meets the location needs of application deployment as well as the demands for redundantly backup critical business applications and data.
Answer: B,C,E
Explanation:
Explanation
A: Elastic Compute Service (ECS) image achieve efficient and convenient deployment. This is correct because ECS images are pre-configured operating system environments that can be used to create and launch ECS instances quickly and easily. ECS images can reduce the cost and time of deploying applications on Alibaba Cloud1.
B: Utilizing Content Delivery Network (CDN) can meet the demands for redundant backup. This is incorrect because CDN is not a backup service, but a service that accelerates the delivery of content to end users by caching it at edge nodes. CDN can improve the performance and availability of applications, but it does not provide data redundancy or backup2.
C: Utilizing Server Load Balancer (SLB) and ECS instances can improve data reliability. This is correct because SLB is a service that distributes traffic among multiple ECS instances based on predefined rules. SLB can improve the availability and reliability of applications by eliminating single points of failure and ensuring that requests are routed to healthy instances3.
D: Elastic Compute Service (ECS) snapshot satisfies the needs of rapid recovery of applications and data. This is incorrect because ECS snapshot is a feature that allows users to create point-in-time backups of ECS disks. ECS snapshots can be used to restore data or create new disks, but they do not satisfy the needs of rapid recovery of applications and data. Snapshots are stored in Object Storage Service (OSS), which is a low-cost and durable storage service, but it has higher latency and lower performance than disks4.
E: Reasonable selection of Regions/Zones meets the location needs of application deployment as well as the demands for redundantly backup critical business applications and data. This is correct because regions and zones are the physical locations of Alibaba Cloud data centers. Regions are geographically isolated from each other, and zones are physically independent within the same region. Users can choose the regions and zones that best suit their application deployment needs, such as proximity to customers, compliance with local regulations, and availability of services. Users can also use multiple regions and zones to achieve redundancy and backup for their critical business applications and data.
References: 1: ECS Images 2: CDN Overview 3: SLB Overview 4: ECS Snapshots : Regions and Zones
NEW QUESTION # 19
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 CA certificates, not SSL certificate
- C. SLB can only support HTTPS one-way authentication
- D. SLB can only host SSL certificates, not CA certificates.
Answer: C
NEW QUESTION # 20
All RDS for MySQL backups are full backups.
- A. False
- B. True
Answer: A
Explanation:
Explanation
RDS for MySQL supports both full backups and incremental backups. A full backup is a complete backup of all data in a database. An incremental backup is a backup of only the data that has changed since the last backup. Incremental backups can reduce the backup time and storage space. You can configure the backup cycle and retention period for both types of backups in the RDS console or by using the API.
NEW QUESTION # 21
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. CloudMonitor
- B. Security Center
- C. Anti-DDoS Origin Basic Edition
- D. Cloud Firewall
Answer: D
NEW QUESTION # 22
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. 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.
- B. The internal networks of different VPCs are completely isolated and can be interconnected through IP addresses mapped to the outside.
- C. Each VPC has an independent tunnel ID, and a tunnel ID corresponds to a virtualized network.
- D. ECS instances in a VPC use security group firewalls for Layer 2 network access control.
Answer: B,C
Explanation:
Explanation
According to the Alibaba Cloud Academy, a VPC is an isolated network environment that is completely isolated from each other. Each VPC has an independent tunnel ID, and a tunnel ID corresponds to a virtualized network. This means that different VPCs cannot communicate with each other through the tunnel ID. Subnets are not divided like the traditional network environment, but rather are logical divisions of the VPC. Different cloud servers within each subnet are connected by the same router, but different subnets are interconnected by route tables, not switches. ECS instances in a VPC use security group firewalls for Layer 4 network access control, not Layer 2. The internal networks of different VPCs are completely isolated and can be interconnected through IP addresses mapped to the outside, such as NAT Gateway or EIP. References: ACP Cloud Computing Certification Preparation Course - Internetworking with VPC, Alibaba Cloud VPC User Guide
NEW QUESTION # 23
Alibaba Cloud Object Storage Service (OSS) is a cloud storage service that features massive capacity, outstanding security, low costs, and high reliability. In an OSS bucket, all elements are stored as________.
- A. Keys
- B. Objects
- C. Hashes
- D. Stubs
Answer: B
Explanation:
Explanation
OSS does not use a hierarchical structure for objects, but instead uses a flat structure. All elements are stored as objects in buckets. To use OSS in the same manner in which local file systems are used, you can configure Cloud Storage Gateway (CSG).
https://www.alibabacloud.com/help/doc-detail/31817.htm
The statement C is correct, because in an OSS bucket, all elements are stored as objects. An object is the basic unit of OSS storage. Each object consists of a unique key, data, and metadata. The key is the name of the object, which is used to identify the object in a bucket. The data is the content of the object, which can be any type of file, such as text, image, video, or audio. The metadata is the information about the object, such as its size, type, creation time, and custom attributes. References: = Object Storage Service:Overview - Alibaba Cloud
NEW QUESTION # 24
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. False
- B. True
Answer: B
NEW QUESTION # 25
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