Where do you define the class that provides options for the select field that enables or disables the provider in the file etc/adminhtml/system.xml?

A Magento industry partner shipping provider has tasked you to build their integration module called MyCompany_ShippingProvider. Where do you define the class that provides options for the select field that enables or disables the provider in the file etc/adminhtml/system.xml?A . <option_model>MagentoConfigModelConfigOptionYesno</option_model>B . <source_model>MagentoConfigModelConfigSourceYesno</source_model>C . <frontend_model>MagentoConfigModelConfigFrontendYesno</frontend_model>D . <backend_model>MagentoConfigModelConfigBackendYesno</backend_model>View AnswerAnswer: B

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How is this accomplished?

A custom module must make changes to the schema following each setup:upgrade run. This must be done after all other module’s schema updates have been applied. How is this accomplished?A . Write a plugin intercepting MagentoSetupModelInstaller::handleDBSchemaDataB . Create an UpgradeSchemaAfter class which implements InstallSchemaInterfaceC . Update the module’s setup_priority in...

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What is causing this?

You are debugging a problem resulting from a recently deployed around plugin. The plugin is intercepting the doSomething method. The aroundDoSomething plugin method is called successfully, but the original doSomething method is no longer being executed as expected. What is causing this?A . The sort order of the plugin is...

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Which of the following services can be used in conjunction with elastic scaling? (Multiple Choice)

Which of the following services can be used in conjunction with elastic scaling? (Multiple Choice)A . Flexible file serviceB . Elastic Cloud ServerC . Cloud monitoringD . Elastic load balancingView AnswerAnswer: ABCD

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What are the components of the elastic cloud server? (Multiple Choice)

What are the components of the elastic cloud server? (Multiple Choice)A . CPUB . Cloud hard driveC . MemoryD . MirrorView AnswerAnswer: ABCD

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The terminal power of the battery in the open circuit state is called ().

The terminal power of the battery in the open circuit state is called ().A . Rated voltageB . Discharge voltageC . Open-circuit voltageD . Actual voltageView AnswerAnswer: C

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In the battery model 6-GFM-150, the 150 mark is the ( ) of the battery.

In the battery model 6-GFM-150, the 150 mark is the ( ) of the battery.A . actual capacityB . rated capacityC . maximum capacity                     D . minimum capacityView AnswerAnswer: B

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When the Huawei air-cooled air-conditioning compressor is turned on for the first time, the crankcase heating belt needs to be preheated for more than () hours.

When the Huawei air-cooled air-conditioning compressor is turned on for the first time, the crankcase heating belt needs to be preheated for more than () hours.A . 2B . 6C . 12D . 24View AnswerAnswer: C

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When a user uses the NETECC APP on the PAD to query the PUE information in the current computer room, he needs to click the () menu.

When a user uses the NETECC APP on the PAD to query the PUE information in the current computer room, he needs to click the () menu.A . AlertB . Energy consumptionC . MonitoringD . moreView AnswerAnswer: B

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Which of the following are the advantages of load balancing? (Multiple Choice)

Which of the following are the advantages of load balancing? (Multiple Choice)A . Support cross-availability zone active-active disaster recovery.B . Adopting clustered deployment, supporting active-active disaster recovery in the same city in multiple availability zones, and seamless real-time switching.C . Automatically complete distribution according to application traffic, seamlessly integrate with...

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