最新の2025年最新の実際に出ると確認されたACP-Cloud1問題集で100%無料ACP-Cloud1試験問題集
無料提供中で2025年最新のに更新されたAlibaba Cloud ACP-Cloud1試験問題と解答
アリババクラウドACP-Cloud1（ACPクラウドコンピューティングプロフェッショナル）試験は、アリババクラウドのクラウドコンピューティング製品とサービスの専門知識を検証したい個人向けに設計された認定試験です。この試験は、クラウドアーキテクト、開発者、エンジニアがクラウドコンピューティング業界での知識とスキルを示したい場合に最適です。ACP-Cloud1試験は、アリババクラウドアーキテクチャ、ネットワーキング、ストレージ、セキュリティ、および管理など、クラウドコンピューティングに関連する様々なトピックを包括的に扱います。
質問 # 82
Object Storage Service (OSS) supports access logging. A bucket owner can activate access logging for their buckets in the OSS management console. When access logging is activated for bucket A, OSS automatically accesses the request logs for this bucket (in hours) and generates and writes an object to the user-specified bucket B according to certain naming rules. Which of the following
statements is true for OSS logging?
- A. Buckets A and B can be separate buckets (or a single bucket) but they must belong to the same user
- B. Buckets A and B can belong to different users.
- C. Buckets A and B must be the same bucket.
- D. Buckets A and B must be different buckets.
正解：A
質問 # 83
Alibaba Cloud ECS provides multiple instance types to meet the needs of different business scenarios. A medium-sized enterprise user wants to use two ECS instances, one to deploy a single Tomcat service and the other one to deploy Memcache. Which of the following configurations is most recommended?
- A. Tomcat: 4 cores, 4G, Memcache: 2 cores, 8G
- B. Tomcat: 4 cores: 4G, Memcache: 2 cores: 16G
- C. Tomcat: 4 cores 8G. Memcache: 2 cores 8G
- D. Tomcat: 4 cores. 8G, Memcache: 2 cores: 16G
正解：B
解説：
According to the Alibaba Cloud ECS documentation1, the recommended instance type for Tomcat is ecs.c5.
xlarge, which has 4 vCPUs and 4 GiB of memory. This instance type is suitable for web applications that require high performance and low latency. The recommended instance type for Memcache is ecs.r5.large, which has 2 vCPUs and 16 GiB of memory. This instance type is optimized for memory-intensive applications that require high memory bandwidth and low latency. Therefore, option D is the most recommended configuration for deploying Tomcat and Memcache on two ECS instances. References: Instance type families and Alibaba Cloud Elastic Compute Service Product Introduction
質問 # 84
A company launched its online service just a year ago. It uses five ECS instances and does not have a full-time system administrator Over the last six months, the company's system has encountered various security problems Several high-risk vulnerabilities were exploited by hackers, leading to leakage of the company's confidential data. Which of the following Alibaba Cloud products can be used to quickly resolve this problem?
- A. Security Center
- B. Cloud Firewall
- C. Anti-DDoS Pro Service
- D. Managed Security Service
正解：A
解説：
Explanation
Security Center is a centralized security management system that dynamically identifies and analyzes security threats, and generates alerts when threats are detected. Security Center provides multiple features to ensure the security of cloud resources and servers in data centers1. Security Center can help the company to quickly resolve its security problems by providing the following benefits:
Unified security management: Security Center automatically collects various log data from the company's services on the cloud, and implements control over found security threats. Security Center can also manage assets, attacks, vulnerabilities, and threats in the Security Center console2.
Proactive defense: Security Center supports the proactive detection and termination of mainstream ransomware, mining programs, backdoor programs, worms, malicious programs, DDoS trojans, and trojan programs. Security Center also prevents websites from being maliciously implanted with the acts that involve terrorism, politics, dark chains, trojans, and backdoors. This ensures the normal operation of web page information2.
Automated security operations: Security Center automatically traces the sources and causes of attacks.
This helps the company understand the ins and outs of intrusion threats and make quick responses. Security Center also supports custom alerts and third-party data migration to the cloud in a secure manner2. References: Security Center - Alibaba Cloud, Cloud Security- Alibaba Cloud, Introduction to Security Center - Alibaba Cloud Document Center
質問 # 85
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 public network.
- B. The data can be imported via the Intranet
- C. The data cannot be migrated.
- D. The data can be imported by running mysqldump.
正解：C
解説：
Explanation
Data Transmission Service (DTS) is a real-time data streaming service that supports data transmission between data sources such as relational databases, NoSQL, and Big Data (OLAP). DTS supports data migration, data synchronization, and change data subscription scenarios. DTS can migrate your data to and from most of the widely used commercial and open source databases. It supports homogeneous migrations such as MySQL to MySQL, as well as heterogeneous migrations between different database platforms, such as Oracle to MySQL.
Migrations can be from on-premises databases to RDS or ECS, databases running on ECS to RDS, or vice versa, as well as from one RDS database to another RDS database. DTS also supports migrating data between RDS instances of different Alibaba Cloud accounts, as long as they are in the same region1. Therefore, the statement B. The data cannot be migrated is NOT correct for migrating self-built MySQL databases (running on ECS) to RDS. The other statements are correct, as the data can be imported via the Intranet, the public network, or by running mysqldump234. References:
1: Migrate Self-built Database to RDS - Alibaba Cloud
2: Migrating a Self-built MySQL Database to Alibaba Cloud RDS for MySQL with Minimal Downtime
- Alibaba Cloud Community
3: Migrating Data from a Self-Managed SQL Server Database on an ECS to an ApsaraDB RDS for SQL Server Database
4: Migrate data between RDS instances of different Alibaba Cloud accounts,Data Transmission Service
質問 # 86
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. In Windows, if IIS is used: after installing "F5XForwardedFor" extension module. 'Visitor's real IP" can then be seen in the log.
- B. "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.
- 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. "Visitor's real IP" can only be obtained by modifying the application
正解：B、C
解説：
Alibaba Cloud CDN can record the real IP address of a visitor in the HTTP header field X-Forwarded-For, which can be obtained by the origin server or the user-defined log of Apache and Nginx. Alibaba Cloud CDN also provides a one-click function to enable the recording of the visitor's real IP address in the console, which can be viewed in the access log. References:
* Obtain the real IP address of a client from the origin server - Dynamic Content Delivery Network - Alibaba Cloud Documentation Center1
* Welcome to Alibaba Cloud and find out more detail about cdn real ip2
質問 # 87
When distributing loads to multiple ECS instances with an Alibaba Cloud Server Load Balancer (SLB), you can obtain the real IP addresses of users who initiate the requests through _____________. (Choose two.)
- A. For Layer-7 services, SLB obtains the real IP addresses of the visitors by means of HTTP Header: X- Forwarded-For, but the "Obtain the Visitors Real IP Address" function must be enabled first.
- B. For Layer-7 services, you can obtain the visitors' real IP addresses directly, without any additional settings.
- C. For Layer-4 services, SLB obtains the real IP addresses of the visitors by means of the HTTP Header:
X-Forwarded-For, but the "Obtain the Visitors Real IP Address" function must be enabled first. - D. For Layer-4 services, you can obtain the visitors' real IP addresses directly, without any additional settings.
正解：A、D
解説：
In Alibaba Cloud SLB, Layer-7 (HTTP/HTTPS) services require enabling the "X-Forwarded-For" header to retrieve the real IP address of clients, while Layer-4 (TCP/UDP) services can obtain the real IP address directly without additional settings.
質問 # 88
You are using Auto Scaling with one scaling group already created, then you want to execute a task at a specific time such as removing 1 ECS instance every night at 00:00. To achieve this, which of the following operations should be performed'? (Number of correct answers; 2)
- A. Create a scaling rule
- B. Create an event-triggered task.
- C. Create a scheduled task.
- D. Create a new scaling group.
正解：A、C
解説：
To execute a task at a specific time such as removing 1 ECS instance every night at 00:00, you need to perform two operations: create a scaling rule and create a scheduled task. A scaling rule is a set of instructions that defines how Auto Scaling scales computing resources in response to changes in business load. A scheduled task is a type of scaling task that can execute a specified scaling rule at a specified time. By creating a scaling rule that removes 1 ECS instance from the scaling group, and creating a scheduled task that executes this scaling rule every night at 00:00, you can achieve the desired result. You do not need to create a new scaling group, because you already have one scaling group created. You also do not need to create an event-triggered task, because this type of scaling task is triggered by events such as Cloud Monitor alarms or API calls, not by a specific time. References: 1, 2, and 3.
質問 # 89
All RDS for MySQL backups are full backups.
- A. True
- B. False
正解：B
解説：
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.
質問 # 90
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. Modify the VPC Security Group policy, to allow access from the Internet.
- B. None of these answers are correct.
- C. Bind an EIP to each of the ECS instances, and Jog on to each of these ECS instances to manage them.
- D. 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.
正解：D
解説：
Explanation
A bastion host is a special-purpose computer on a network specifically designed and configured to withstand attacks. The computer generally hosts a single application, for example a proxy server, and all other services are removed or limited to reduce the threat to the computer. It is hardened in this manner primarily due to its location and purpose, which is either on the outside of a firewall or in a demilitarized zone (DMZ) and usually involves access from untrusted networks or computers. In the context of Alibaba Cloud, a bastion host can be used to securely access and manage multiple ECS instances in a VPC through the Internet. By applying an EIP and binding it to the bastion host, the administrator can use SSH or RDP protocols to log on to the bastion host from the Internet, and then use the same protocols to access other ECS instances in the VPC through the private network. This way, the administrator can avoid exposing all the ECS instances to the Internet, which would increase the risk of attacks and incur higher costs. The bastion host can also be configured with security policies and monitoring tools to enhance the protection of the ECS instances in the VPC. References: Bastion Host, Access an ECS Instance by Using a Bastion Host
質問 # 91
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. The purpose of a DDoS attack is to steal confidential information.
- B. A DDoS attacks crack the server's logon password by means of a massive number of attempts.
- 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.
正解：C
解説：
A DDoS attack is a type of cyberattack that aims to exhaust the resources of a target server or network, such as bandwidth, CPU, memory, or disk space, by sending a large amount of malicious traffic or requests. This can cause the server or network to slow down, crash, or become unavailable to legitimate users. A DDoS attack is not intended to steal confidential information, crack passwords, or target databases, although these may be secondary objectives or consequences of some attacks. A DDoS attack is one of the most common and powerful threats to website security, as it can be launched from multiple sources, use various attack methods, and evade traditional defense mechanisms. According to the DDoS Attack Statistics and Trend Report by Alibaba Cloud, the proportion of volumetric attacks at 50Gbps and above has doubled, and the resources exhaustion attack reached a peak value of 3 million QPS in 2020-2021. References: DDoS Attacks:
Sources, Strategies and Practices - Alibaba Cloud, DDoS Attack Statistics and Trend Report by Alibaba Cloud, Use Alibaba Cloud Anti-DDoS Service to Defend DoS Attack, Anti-DDoS Basic - Alibaba Cloud
質問 # 92
After activating an SLB, it will be assigned an IP address. The SLB will keep this IP address until it is released.
- A. True
- B. False
正解：A
解説：
Alibaba Cloud SLB instances are assigned a public or private IP address when created, and this IP remains unchanged for the life of the SLB instance. The IP address will only be released when the SLB instance itself is deleted.
質問 # 93
When you initiate a request via an Open API provided by Alibaba Cloud Elastic Compute Service (ECS), whether the request is initiated successfully or not, the server will return ______________________ as a unique identifier.
- A. Messageld
- B. Requestld
- C. Responseld
- D. Time stamp
正解：B
解説：
In Alibaba Cloud ECS, whenever an API request is made, a unique identifier called the RequestId is generated and returned. This ID is generated regardless of the request's success or failure. RequestId serves as a unique identifier for tracking and debugging specific requests within the ECS environment, allowing users to trace and troubleshoot individual API calls. This practice ensures that issues can be resolved more efficiently by tracking the specific request, and it is a common practice across many Alibaba Cloud services.
質問 # 94
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. The internal networks of different VPCs are completely isolated and can be interconnected through IP addresses mapped to the outside.
- B. Each VPC has an independent tunnel ID, and a tunnel ID corresponds to a virtualized network.
- 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.
正解：A、D
質問 # 95
The Alibaba Cloud CDN can directly accelerate access to the files stored in OSS and reduce OSS traffic costs.
- A. True
- B. False
正解：A
解説：
Explanation
The Alibaba Cloud CDN can directly accelerate access to the files stored in OSS and reduce OSS traffic costs.
Alibaba Cloud CDN is a global network of points of presence (POPs) that are distributed across the globe.
Alibaba Cloud CDN serves to reduce back-to-origin traffic. This in turn prevents network congestion and ensures that content is delivered with minimal latency across regions in various use cases1. Alibaba Cloud CDN caches resources from your origin servers on POPs located across the globe. Whenever customers access your resources, the resources are served from the nearest POP instead of the origin server. This helps prevent lengthy back-to-origin requests and reduces loads on origin servers, delivering better experience to your customers and reducing back-to-origin costs1. Alibaba Cloud CDN also provides IPv6 support on some POPs1. You can use Alibaba Cloud CDN to accelerate access to Object Storage Service (OSS). If you directly access OSS resources, the access speed varies based on the region in which the buckets are located and is limited by the outbound bandwidth of OSS2. The Internet traffic cost of CDN is lower than that of OSS, and the back-to-source traffic cost from CDN to OSS is also lower than a user access to OSS directly2. Therefore, using CDN can reduce the traffic cost of OSS. References: Use Alibaba Cloud CDN to accelerate access to OSS, What is Alibaba Cloud CDN?
質問 # 96
Which of the following statements is NOT correct, when comparing RDS with a self-built database?
- A. 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.
- B. Self-built database support quick deployment and elastic scaling.
- C. RDS requires no O&M while self-built database require a dedicated DBA for maintenance, which results in high HR costs.
- D. 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.
正解：B
質問 # 97
Which of the following statements is most accurate about the Data Transmission Service (DTS) database migration function?
- A. Supports warning when source and destination has some unresolved conflict found.
- B. Supports migrating MySQL databases from external sources.
- C. Supports all of the above functions.
- D. Supports database schema replication between instances.
正解：C
解説：
Data Transmission Service (DTS) is a real-time data streaming service that supports data transmission between data sources such as relational databases, NoSQL, and Big Data (OLAP). DTS supports data migration, data synchronization, and change data subscription scenarios. DTS can migrate your data to and from most of the widely used commercial and open source databases. It supports homogeneous migrations such as MySQL to MySQL, as well as heterogeneous migrations between different database platforms, such as Oracle to MySQL. Migrations can be from on-premises databases to RDS or ECS, databases running on ECS to RDS, or vice versa, as well as from one RDS database to another RDS database. DTS also supports database schema replication between instances, which means that DTS can automatically create the same schema as the source database in the target database. DTS also supports warning when source and destination has some unresolved conflict found, such as data type mismatch, primary key conflict, or foreign key constraint violation. DTS can help you resolve these conflicts by providing suggestions or allowing you to modify the data mapping rules. Therefore, the correct answer is C. Supports all of the above functions. References:
* 1: Data Transmission Service - Alibaba Cloud
* 2: What is Data Transmission Service? - Alibaba Cloud
* 3: Database Migration - AlibabaCloud
* 4: Cloud Migration without Stopping Services: Alibaba Cloud DTS
質問 # 98
A startup team developed an app named "Public Image Service," which provides image management services for e-commerce websites. The app includes a self-developed API for file uploads, queries, and deletions, and aims to manage a large number of small images with fast global access. Currently, 500 GB of images and files are uploaded daily. The team is ready to migrate all applications to Alibaba Cloud. They should at least choose Alibaba Cloud ___________________ service. (Choose three.)
- A. Elastic Compute Service
- B. Content Delivery Network
- C. Auto Scaling
- D. Object Storage Service
正解：A、B、D
解説：
For a service focused on storing and providing fast access to a massive amount of images, the team should use:
* Object Storage Service (OSS): For scalable and cost-effective storage of large image datasets.
* Elastic Compute Service (ECS): For running the application's backend and API logic.
* Content Delivery Network (CDN): To cache and accelerate image delivery globally, improving access speed for users worldwide.While Auto Scaling is useful for applications with highly variable compute demands, it is not essential for this setup based on the described requirements.
質問 # 99
When you create an Alibaba Cloud VPC. a VRouter and a route table will be created automatically. Which of the following statements is NOT correct about the route table?
- A. When a VPC is deleted, the corresponding route table is also deleted.
- B. Each VRouter may have multiple route tables.
- C. The routing entries of the route table can not be modified manually.
- D. This route table cannot be deleted
正解：C
解説：
A route table is a set of rules that determine how network traffic is routed within a VPC or between different network instances1. A VRouter is a hub that connects all VSwitches in the same VPC and enables communication between them2. When you create a VPC, a VRouter and a default route table are automatically created for the VPC1. The default route table contains system routes that are automatically generated by the system based on the network topology1. The system routes cannot be modified or deleted1.
However, you can also create custom route tables for your VPC and add custom routes to them1. Custom routes are manually configured by users to route traffic to specific destinations, such as other VPCs, VBRs, VPN Gateways, or NAT Gateways1. Custom routes can be modified or deleted as needed1. You can also associate VSwitches with different route tables to implement fine-grained routing control1.
Therefore, the statement that the routing entries of the route table can not be modified manually is not correct, as it only applies to system routes, not custom routes. The other statements are correct, as each VRouter may have multiple route tables, one default and several custom1; when a VPC is deleted, the corresponding route table is also deleted3; and the default route table cannot be deleted1. References: Route table overview - Virtual Private Cloud - Alibaba Cloud Documentation Center, VRouter overview - Virtual Private Cloud - Alibaba Cloud Documentation Center, Delete a VPC - Virtual Private Cloud - Alibaba Cloud Documentation Center
質問 # 100
In an Alibaba Cloud Elastic Compute Service (ECS) instance, you can freely change directory permissions of the system root directory in Linux, which has no influence on all services in the Elastic Compute Service (ECS) instance.
- A. FALSE
- B. TRUE
正解：A
解説：
Changing directory permissions of the system root directory in Linux can have a significant impact on system functionality and services. Modifying these permissions can lead to restricted access for essential system services, potentially causing service disruptions. Proper care is necessary when altering permissions on critical directories.
質問 # 101
RDS instances are automatically created in master-slave mode without extra charge or configuration.
- A. TRUE
- B. FALSE
正解：A
解説：
Alibaba Cloud RDS automatically deploys instances in master-slave mode (high availability) without additional configuration or charges. This ensures data redundancy and disaster recovery by maintaining synchronous data replication from the master to the slave instance.
質問 # 102
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. Modify the VPC Security Group policy, to allow access from the Internet.
- B. 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.
- C. Bind an EIP to each of the ECS instances, and Jog on to each of these ECS instances to manage them.
- D. None of these answers are correct.
正解：D
質問 # 103
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