2022 Realistic Verified ACP-Cloud1 exam dumps Q&As – ACP-Cloud1 Free Update [Q42-Q66]

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2022 Realistic Verified ACP-Cloud1 exam dumps Q&As – ACP-Cloud1 Free Update

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NO.42 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?

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.

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.

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.

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.

NO.43 Which of the following statements is NOT correct, when comparing RDS with a self-built database?

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

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.

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.

Self-built database support quick deployment and elastic scaling.

NO.44 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.

NO.45 Different Alibaba Cloud VPCs are completely isolated from each other.
By default, the VPCs cannot communicate with each other over Intranet, but you can establish VPN connections via the Internet to achieve interconnection between VPCs.

True

False

NO.46 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.

True

False

NO.47 Once ECS is created, you can’t change its private IP address anymore.

True

False

NO.48 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?

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.

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.

The DNS service provider used by the domain name (such as abc.com) must support intelligent resolution.

The DNS service provider used by the domain name (such as abc.com) can be companies other than Alibaba Cloud.

NO.49 Alibaba Cloud SLB can distribute user requests to backend ECS instances. These ECS instances must have the same specification (CPU, Memory)

True

False

NO.50 A large enterprise wants to migrate the entire business system to Alibaba Cloud to save the overall IT procurement and O&M costs From the security aspect, the company requires that
1. Must support secured remote O&M because the administrator often takes business trips.
2. Networks between subsystems should be isolated because subsystems are independently used by different departments Which of the followings should be used together to meet the company’s requirements? (Number of correct answers: 3)

Enable the VPN on the bastion host (or directly use the VPN image on Alibaba Cloud Marketplace). The administrator uses VPN encrypted communication during O&M.

Build an independent ECS instance as the bastion host or remote logon and O&M, and authorize the bastion host to access ECS instances running other subsystems.

Use the security group function of the ECS instance, and respectively deploy ECS instances running different subsystems to independent security groups.

Create multiple ECS instances in the VPC to install subsystems of different departments- Allocate only Intranet IP addresses to all ECS instances, and deploy them in the same security groups.

NO.51 All RDS for MySQL backups are full backups.

True

False

NO.52 Compared with traditional physical servers, upgrading an ECS instance is much easier. Which of the following statements about upgrading an ECS instance is false?

You can upgrade the CPU, memory, and bandwidth.

Upgrading the configuration of the ECS instance requires no’ redeployment or data migration.

Upgrading network bandwidth does not require the ECS instance to restart.

You can change an instance’s operating system without rebooting.

NO.53 By using ApsaraDB for RDS to implement read/write splitting, which of the following can be achieved? (Number of correct answers 2)

Write requests are distributed to multiple instances.

Read requests are distributed to multiple instances.

Read/write requests to the database are separated.

Both read and write requests are distributed to multiple instance

NO.54 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

NO.55 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)

HTTPS

HTTP

UDP

TCP

NO.56 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.

True

False

NO.57 When the “‘Obtain the Visitor’s Real IP Address” function is enabled in Alibaba Cloud SLB For layer 7 services, you can obtain the real IP addresses of visitors through the______________field in HTTP header

Connection

Authorization

Etag

X-Forwarded-For

NO.58 You have created two Alibaba Cloud VPCs in two different regions To establish communication between these two VPCs via the Intranet, you can________.

Use the VRouter to create a new route table to enable the communication

Use CEN to establish communication between VPCs

Create a new access rule through the Security Group to enable the communication

No operation is needed, as VPCs under the same account are connected through the Intranet by default

NO.59 Auto Scaling can automatically adjust the number of ECS instances based on user-defined scaling rules to meet service needs. If a user cannot predict service changes or does not have enough history data, he/she can still use dynamic scaling mode to automatically add/remove ECS instances based on certain CloudMonitor performance metrics (such as the CPU utilization rate)

True

False

NO.60 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.

True

False

NO.61 Alibaba Cloud CloudMonitor is a service that monitors Alibaba Cloud resources and Internet functions currently provided by CloudMonitor? (Number of correct answers: 3)

Site monitoring

Customized monitoring

Custom firewall

Operation auditing

Cloud service monitoring

NO.62 You need to create a new ECS instance for a 10-data test. Which of the following billing methods is most cost-effective?

Pay-AS-You-Go with Savings Plan

Preemptible

Subscription

Pay-As-You-Go

NO.63 The difference between public and private Server Load Balancers (SLBs) is that private SLBs connect to their backend ECS instances using the private network (Intranet) while public SLBs connect to their backend ECS instances using the public network (Internet).

True

False

NO.64 Alibaba Cloud Object Storage Service (OSS) provides multiple file uploading modes for different scenarios, which are___________.
(Number of correct answers: 2)

Direct upload from the OSS management console no matter how large the file is

Uploading using the API

Directly copying to/from OSS using portable disks

Upload using the SDK

NO.65 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.

NO.66 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

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2022 Realistic Verified ACP-Cloud1 exam dumps Q&As – ACP-Cloud1 Free Update [Q42-Q66]

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