Get all the Information About Alibaba Cloud ACP-Cloud1 Exam 2024 Practice Test Questions [Q13-Q35]

NEW QUESTION 13
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)

Import database data into Object Storage Service (OSS) to share the storage pressure on the platform

Incorporate Server Load Balancer (SLB) and add additional ECS instances to relieve the load on existing ECS instances

Use Content Delivery Network (CDN) to enhance content loading speed

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

NEW QUESTION 14
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

True

False

NEW QUESTION 15
Which of the following statements is NOT correct, when comparing RDS with a self-built database?

Self-built database support quick deployment and elastic scaling.

RDS requires no O&M while self-built database require a dedicated DBA for maintenance, which results in high HR costs.

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.

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.

NEW QUESTION 16
Which of the following statements is most accurate about the Data Transmission Service (DTS) database migration function?

Supports database schema replication between instances.

Supports warning when source and destination has some unresolved conflict found.

Supports all of the above functions.

Supports migrating MySQL databases from external sources.

NEW QUESTION 17
Which of the following privilege is required to manually install Alibaba Clod Security Center on the server?

Database Access privilege

Common user privilege

System administrator privilege

FTP service privilege

NEW QUESTION 18
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)

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.

Service on demand Cloud storage has a huge resources pool, users can apply for and use the resources on demand.

High reliability and availability: Provides very high reliability and availability through technologies like
3 redundant copies, automatic failure recovery, etc.

Ultra-large scale: Data storage can reach TB or even PB level

Transparent service: Provides the service through a single SDK

High scalability Storage capacity can be dynamically scaled to meet the needs.

Explanation
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. This is incorrect because cloud storage is designed to abstract the underlying details of how the data is stored and managed from the users. Users do not need to worry about the hardware, software, or network issues that may affect the data availability or reliability. The cloud storage provider is responsible for maintaining and managing the storage infrastructure and ensuring the service continuity1.
B: Service on demand Cloud storage has a huge resources pool, users can apply for and use the resources on demand. This is correct because cloud storage is based on the cloud computing model of service on demand, which means that users can request and access the storage resources as needed, without having to purchase or provision them in advance. Cloud storage providers offer flexible pricing models that allow users to pay only for the storage they use2.
C: High reliability and availability: Provides very high reliability and availability through technologies like 3 redundant copies, automatic failure recovery, etc. This is correct because cloud storage uses various technologies and methods to ensure that the data stored in the cloud is always accessible and durable. For example, cloud storage providers typically replicate the data across multiple servers, regions, or zones to prevent data loss due to hardware failure, natural disaster, or human error. Cloud storage providers also use automatic failure recovery mechanisms to detect and repair any issues that may affect the data integrity or availability3.
D: Ultra-large scale: Data storage can reach TB or even PB level. This is correct because cloud storage can handle massive amounts of data, ranging from terabytes (TB) to petabytes (PB) or even exabytes (EB). Cloud storage providers have the infrastructure and expertise to scale up the storage capacity and performance to meet the growing data needs of users. Cloud storage can support various types of data, such as structured, unstructured, or semi-structured data, and various use cases, such as data backup, data archiving, data analytics, or data sharing.
E: Transparent service: Provides the service through a single SDK. This is incorrect because cloud storage is not a transparent service, but a service that requires users to interact with it through a specific interface or protocol. Cloud storage providers usually offer different types of storage services, such as object storage, block storage, or file storage, each with its own characteristics and features. Users need to choose the appropriate storage service for their data and use the corresponding software development kit (SDK), application programming interface (API), or command-line interface (CLI) to access and manipulate the data.
F: High scalability Storage capacity can be dynamically scaled to meet the needs. This is correct because cloud storage is highly scalable, meaning that users can increase or decrease the storage capacity according to their data needs. Cloud storage providers offer elastic storage services that can automatically adjust the storage resources based on the demand, without requiring users to manually provision or deprovision them. Cloud storage also allows users to scale the storage performance, such as throughput, latency, or bandwidth, to optimize the data access and transfer.
References: 1: What is Cloud Storage? – Cloud Storage Explained – AWS 2: What is Cloud Storage & How Does it Work? | Google Cloud 3: Cloud Storage Reliability and Availability | Cloud Storage Documentation :
What is Cloud Storage? – Definition from Techopedia : Cloud Storage Types: Object, Block, and File | IBM :
Cloud Storage Scalability | Cloud Storage Documentation

NEW QUESTION 19
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.

True

False

NEW QUESTION 20
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?

The instance and the scaling group must be in the same region and zone.

The instance and the scaling group must be in the same region but not necessarily the same zone.

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.

The instance and the scaling group can be in different regions and zones.

NEW QUESTION 21
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________.

Hashes

Keys

Objects

Stubs

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.

True

False

NEW QUESTION 23
When a customer uses Alibaba Cloud Object Storage Service (OSS) service and finds there exist an amount of Internet downstream traffic, he/she can use Alibaba Cloud Content Delivery Network (CDN) service to reduce the traffic cost.
Because the Internet traffic cost of CDN is lower than that of OSS, moreover, the back-to-source traffic cost from CDN to OSS is also lower than a user access to OSS directly.

True

False

NEW QUESTION 24
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_______.

SLB can only host SSL certificates, not CA certificates.

You need to host server SSL certificates and client CA certificates on SLB

SLB can only host CA certificates, not SSL certificate

SLB can only support HTTPS one-way authentication

Explanation
SLB (Server Load Balancer) is a service that distributes network traffic across groups of backend servers to improve the service capability and application availability1. SLB supports HTTPS listeners, which allow you to encrypt the data transmission between clients and SLB instances2. HTTPS is a secure version of HTTP that uses SSL/TLS protocols to provide data encryption, integrity, and authentication3.
To use HTTPS listeners, you need to upload SSL certificates to SLB. SSL certificates are digital certificates that use public key cryptography to verify the identity of a website and encrypt the data exchanged between the website and the visitors4. There are two types of SSL certificates: server certificates and client certificates.
Server certificates are issued by trusted certificate authorities (CAs) to verify the identity of the website owner and the domain name. Client certificates are issued by the website owner to verify the identity of the visitors5.
SLB supports both one-way and two-way authentication for HTTPS listeners. One-way authentication means that only the server identity is verified by the client. Two-way authentication means that both the server and the client identities are verified by each other. To use one-way authentication, you only need to upload the server SSL certificate to SLB. To use two-way authentication, you need to upload both the server SSL certificate and the client CA certificate to SLB. The client CA certificate is the root certificate or intermediate certificate of the CA that issues the client certificates.
Therefore, if you want to use SLB and ECS instances to deploy two-way authenticated HTTPS websites, you need to host server SSL certificates and client CA certificates on SLB. SLB can host both SSL certificates and CA certificates, and it supports HTTPS two-way authentication. The other statements are incorrect. References: Server Load Balancer(SLB) – Alibaba Cloud, Add an HTTPS listener – Server Load Balancer – Alibaba Cloud Documentation Center, What is HTTPS? – SSL.com, What is an SSL Certificate? – SSL.com, What is a Client Certificate? – SSL.com, [Configure two-way authentication for an HTTPS listener – Server Load Balancer – Alibaba Cloud Documentation Center]

NEW QUESTION 25
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.

True

False

NEW QUESTION 26
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.

True

False

NEW QUESTION 27
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.

None of these answers are correct.

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.

Modify the VPC Security Group policy, to allow access from the Internet.

Bind an EIP to each of the ECS instances, and Jog on to each of these ECS instances to manage them.

NEW QUESTION 28
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?

The data can be imported via the Intranet

The data cannot be migrated.

The data can be imported via the public network.

The data can be imported by running mysqldump.

NEW QUESTION 29
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)

“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.

“Visitor’s real IP” can only be obtained by modifying the application

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.

In Windows, if IIS is used: after installing “F5XForwardedFor” extension module. ‘Visitor’s real IP” can then be seen in the log.

NEW QUESTION 30
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)

Elastic Compute Service (ECS) image achieve efficient and convenient deployment.

Utilizing Content Delivery Network (CDN) can meet the demands for redundant backup.

Utilizing Server Load Balancer (SLB) and ECS instances can improve data reliability.

Elastic Compute Service (ECS) snapshot satisfies the needs of rapid recovery of applications and data.

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.

NEW QUESTION 31
OSS supports multi-part uploading for large files, namely dividing a large file into multiple parts and uploading them in order. This function is suitable for scenarios such as uploading large files or uploading files with poor connectivity.
After completing all the multi-part uploading tasks, if you forget to invoke the “Complete Multipart Upload” interface, there will be fragment files left in OSS, occupying bucket storage space-To facilitate deleting those files, OSS provides the________function.

OpenAPI batch deletion

Online batch deletion

Bucket clearing

Fragment management

NEW QUESTION 32
A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group He/she sets the “Minimum number of instances” to 2 and “Maximum number of instances” to 7.
After correctly configuring scaling settings, the customer adds a scaling rule “Add 6 ECS instances”, and creates a scheduled task based on this rule.
And then, the customer checks the scaling group and see it already contains 3 valid ECS instances, he/she then enables this scaling group immediately.
How many ECS instance will be added in the scaling group when the scheduled task is activated once’?

0

2

4

6

NEW QUESTION 33
Many cloud computing service providers support users to activate/create a cloud service through Open API. Which of the following protocols is most not likely to be supported by these Open API?

HTTP

Restful

Web Service

PPPoE

NEW QUESTION 34
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?

Based on request level parameters of external requests, all requests with a request level parameter of 100 will be transferred to ecs_inst1

Based on SLB’s working mechanism, approximately 20% of loads will be assigned to ecs_inst1

We do not know the weight settings of the remaining 4 ECS instances, so we cannot tell what would happen

100% of loads will be assigned to ecs__inst1, and the remaining 4 ECS instances will stay idle

NEW QUESTION 35
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 dat a. Which of the following Alibaba Cloud products can be used to quickly resolve this problem?

Managed Security Service

Cloud Firewall

Anti-DDoS Pro Service

Security Center

Related posts:

admin

You might also like

Leave a Reply Cancel reply