When should you consider using eager loading in Entity Framework to retrieve related data?
- When dealing with complex object graphs
- When memory usage is not a concern
- When there are multiple levels of navigation properties
- When working with small datasets
Eager loading should be considered when dealing with complex object graphs, meaning scenarios where an entity has multiple related entities and navigating through them would lead to multiple database round-trips if lazy loading were used. Eager loading retrieves all related entities in a single query, which can reduce the number of database round-trips and improve performance in such scenarios. This approach is suitable when memory usage is not a significant concern, as it may lead to loading unnecessary data into memory.
In ASP.NET, the ___________ event of a DropDownList control is commonly used for postback and data binding.
- SelectedIndexChanged
- DataBound
- Load
- SelectedValueChanged
The correct option is 1. SelectedIndexChanged. This event is commonly used for postback and data binding in ASP.NET when dealing with the DropDownList control. It triggers when the selected item in the DropDownList control changes.
In ADO.NET, what is the role of the DataRow object when modifying data?
- Represents a single table of data
- Represents a single row of data
- Represents a dataset
- Represents a database connection
The correct option is Represents a single row of data. DataRow object in ADO.NET represents a single row of data within a DataTable. It allows modification, addition, and deletion of data in the DataTable. The other options do not accurately describe the role of a DataRow object.
Scenario: Your application needs to allow users to edit data within the displayed table. Which property or feature would you enable in the chosen control?
- AllowEdit property
- EditMode property
- Editable property
- EditingEnabled property
To enable users to edit data within the displayed table, you would set the EditingEnabled property to true in the chosen control, such as DataGridView. This property allows users to modify cell values directly within the grid, providing a seamless editing experience. By enabling editing functionality, users can make changes to the data without the need for additional forms or dialogs, enhancing the usability of the application.
What does LINQ stand for in C#?
- Language Integrated Query
- Link Integrated Query
- List Integrated Query
- Logical Integrated Query
LINQ stands for "Language Integrated Query". It allows developers to query various data sources using a syntax similar to SQL.
What is the primary function of Azure Backup?
- Data encryption and decryption
- Network monitoring
- Regularly backing up and restoring data
- Resource provisioning
The primary function of Azure Backup is to regularly back up and restore data, ensuring data resilience and availability in case of any data loss or corruption.
To enhance the security of Azure Virtual Machines, one should implement Azure _______ Network Security Groups.
- Application
- Inbound
- Outbound
- Subnet
Azure Network Security Groups (NSGs) are used to control inbound and outbound traffic to network interfaces, enhancing the security posture of Azure Virtual Machines.
Azure Security Center's _______ analytics helps in detecting and responding to network threats.
- Adaptive
- Behavioral
- Predictive
- Threat Intelligence
Azure Security Center employs Behavioral Analytics to identify unusual patterns and behaviors, aiding in the detection and response to network threats.
Describe the purpose of Azure ExpressRoute in enhancing network connectivity and performance.
- Azure VPN Gateway
- High-speed internet connection
- Load balancing for web applications
- Private dedicated network connection
Azure ExpressRoute provides a private, dedicated connection between on-premises data centers and Azure, enhancing network connectivity and performance by bypassing the public internet.
In complex integrations, Azure Logic Apps uses _______ to define the workflow logic in a JSON format.
- ARM Templates
- Azure Logic Apps API
- Bicep
- Logic Apps Designer
Azure Logic Apps uses Logic Apps Designer to define complex workflow logic in a JSON format, providing a visual and intuitive way to design integrations.
In Azure Resources and Subscriptions, _______ Management Groups allow for hierarchical management of multiple subscriptions.
- Azure AD
- Azure Blueprints
- Policy
- Resource
Azure Resource Management Groups provide a hierarchical structure for managing resources and subscriptions, enabling efficient organization and governance.
A company needs to deploy a scalable microservices application with a complex orchestration requirement. Which Azure service would be most appropriate for this scenario?
- Azure Container Instances
- Azure Functions
- Azure Kubernetes Service (AKS)
- Azure Service Fabric
Azure Service Fabric is designed for deploying and managing microservices applications with complex orchestration requirements, making it the best fit for the given scenario.