PwC Interview Questions, Process, and Tips

Program to find character occurances in 'Hello World'

• Create a map to store character occurrences

• Iterate through each character in the string and update the map

• Print the character occurrences from the map

Multithreading is the ability of a CPU to execute multiple threads concurrently, allowing for better performance and resource utilization.

• Multithreading allows multiple threads to run concurrently within the same process.

• Each thread has its own stack and shares the same memory space.

• Multithreading can improve performance by utilizing multiple CPU cores efficiently.

• Examples of multithreading include running multiple tas...read more

TestNG annotations are used to control the flow of test methods and provide additional information about the test.

• Annotations like @Test, @BeforeSuite, @AfterSuite are used to define test methods and setup/teardown methods

• Annotations like @BeforeTest, @AfterTest are used to run setup/teardown methods before/after a test

• Annotations like @BeforeClass, @AfterClass are used to run setup/teardown methods before/after a test...read more

Accounting entries in payables involve recording the liability for goods or services received but not yet paid for.

• When a company receives goods or services on credit, a liability is created in accounts payable.

• The accounts payable account is credited to increase the balance, representing the amount owed to the supplier.

• When the payment is made, the accounts payable account is debited to reduce the balance.

• For example,...read more

Oracle Cloud continuously updates its platform with new features and enhancements to improve performance and user experience.

• Oracle Cloud Infrastructure (OCI) offers new services like Autonomous Database, Cloud HSM, and Data Safe

• OCI provides enhanced security features such as Key Management, Identity and Access Management, and Security Zones

• Integration with popular tools like Kubernetes, Terraform, and Ansible for seam...read more

Azure Functions are event-driven, serverless compute whereas Logic Apps are workflow automation platforms.

• Azure Functions are used for executing code in response to events, such as HTTP requests or messages from queues.

• Logic Apps are used for orchestrating workflows and integrating various services and applications.

• Azure Functions are more suitable for small, focused tasks, while Logic Apps are better for complex workf...read more

Yes, we can write an asynchronous method without using await keyword.

• Use Task.Run to run a method asynchronously without awaiting it

• Use Task.Run to run a method on a background thread without blocking the main thread

• Example: Task.Run(() => SomeMethod());

JWT token is a JSON Web Token used for securely transmitting information between parties as a compact and self-contained way.

• JWT token is an encoded string that contains a header, payload, and signature.

• It is commonly used for authentication and information exchange in web applications.

• JWT tokens are signed using a secret key or a public/private key pair to verify the sender and ensure the token's integrity.

A framework is a set of tools, libraries, and best practices used to develop software applications.

• Provides a structure for organizing code and implementing common functionalities

• Promotes code reusability and maintainability

• Examples include AngularJS, React, Spring Framework

REST API is a type of web service that allows communication between different systems over HTTP.

• REST stands for Representational State Transfer

• Uses standard HTTP methods like GET, POST, PUT, DELETE

• Data is transferred in JSON or XML format

• Stateless communication between client and server

• Example: Twitter API allows developers to access and interact with Twitter data

Coalesce is used to return the first non-null value among its arguments, while reparation is not a standard function in SQL.

• Coalesce is a standard SQL function, while reparation is not.

• Coalesce returns the first non-null value among its arguments.

• Reparation is not a standard SQL function and may refer to a custom function or process specific to a certain system or application.