OA Exams

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  • November 21, 2024

Question 41

What does the “Lease Blob” operation in Azure Storage provide?

a) Shared access to blobs
b) Exclusive write and delete access to a blob
c) Enhanced read performance
d) The ability to archive the blob

Correct Answer: b) Exclusive write and delete access to a blob

Explanation: The Lease Blob operation in Azure grants exclusive write and delete access to a blob during the lease period.

Question 42

In Azure, what is the difference between Vertical and Horizontal Scaling?

a) Vertical scaling increases the number of VMs; horizontal scaling increases the memory
b) Vertical scaling increases CPU and memory resources; horizontal scaling adds more instances
c) Horizontal scaling always costs more than vertical scaling
d) Vertical scaling works only with databases, while horizontal scaling works with web apps

Correct Answer: b) Vertical scaling increases CPU and memory resources; horizontal scaling adds more instances

Explanation: Vertical scaling increases the resources (CPU, memory) for a single instance, while horizontal scaling adds more instances to handle load.

Question 43

What is the purpose of using the Azure Blob “Cool” tier?

a) To store frequently accessed data
b) To store data that is accessed infrequently
c) To ensure high-speed data access
d) To store data for real-time processing

Correct Answer: b) To store data that is accessed infrequently

Explanation: The Cool tier is designed for data that is infrequently accessed but needs to be available within seconds when required.

Question 44

What feature in Azure API Management allows you to define and apply policies to APIs?

a) User Roles
b) Products
c) Subscriptions
d) Operations

Correct Answer: b) Products

Explanation: Products in Azure API Management allow you to bundle APIs and apply policies, such as rate limiting or caching, to them.

Question 45

Which Azure service allows for serverless orchestration of workflows using a graphical user interface?

a) Azure Functions
b) Azure Durable Functions
c) Azure Logic Apps
d) Azure Event Grid

Correct Answer: c) Azure Logic Apps

Explanation: Azure Logic Apps is a serverless service that provides a visual workflow designer for building and automating workflows across various services.

Question 46

Which type of analysis would be best for understanding the impact of one variable on another?

a) Input binding
b) Timer binding
c) Output binding
d) Trigger binding

Correct Answer: c) Output binding

Explanation: Output bindings in Azure Functions allow you to send data, such as notifications, to external services like SignalR.

Question 47

What is the primary function of the Azure Event Hub service?

a) To manage large volumes of real-time event data streams
b) To store relational data
c) To host virtual machines
d) To provide file storage solutions

Correct Answer: a) To manage large volumes of real-time event data streams

Explanation: Azure Event Hub is designed for high-throughput event ingestion and processing of real-time data streams.

Question 48

 Which Azure service provides the ability to create, test, and manage APIs?

a) Azure Service Bus
b) Azure Functions
c) Azure API Management
d) Azure Event Grid

Correct Answer: c) Azure API Management

Explanation: Azure API Management is a full-featured platform for creating, publishing, and managing APIs.

Question 49

What is the result of a failed lease operation in Azure Blob Storage?

a) The blob is deleted
b) The blob becomes read-only
c) The blob cannot be written or deleted until the lease is resolved
d) The blob is moved to archive

Correct Answer: c) The blob cannot be written or deleted until the lease is resolved

Explanation: If a lease operation fails, the blob cannot be modified until the lease is either released or resolved.

Question 50

 In Cosmos DB, what is the result of choosing a partition key with few possible values?

a) Enhanced performance
b) Creation of a hot partition
c) Reduced latency
d) Increased availability

Correct Answer: b) Creation of a hot partition

Explanation: Choosing a partition key with few possible values can result in a hot partition, where a single partition becomes overloaded with requests.

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