10+ BLSD Labs Interview Questions and Answers

Calculate the difference between two integers and find how many numbers within that difference are divisible by 3.

• Calculate the absolute difference between the two integers

• Iterate through the range of numbers within the difference and check if each number is divisible by 3

• Keep a count of numbers divisible by 3

To invoke methods from two interfaces with same method names, use explicit interface implementation.

• Use explicit interface implementation to differentiate between the methods from each interface.

• Specify the interface name followed by the method name to invoke the desired method.

• Example: InterfaceA.Method() and InterfaceB.Method() to invoke methods from InterfaceA and InterfaceB respectively.

Identify first occurrences of vowels in a string and return their indices along with count.

• Loop through the string and check if each character is a vowel (a, e, i, o, u)

• Store the index of the first occurrence of each vowel in a separate array

• Return the array of indices and the count of indices

Static constructor is used to initialize static data members of a class.

• Executed only once when the class is first accessed

• Cannot have any access modifiers or parameters

• Used to initialize static variables or perform any necessary setup tasks

Microservices communicate with each other through APIs, messaging queues, and service discovery.

• APIs: Microservices can communicate with each other by exposing APIs that allow them to send and receive data.

• Messaging queues: Microservices can use messaging queues like RabbitMQ or Kafka to send messages to each other asynchronously.

• Service discovery: Microservices can use service discovery tools like Consul or Eureka to locate and communicate with other services in the network....read more

Print 'hello world!!' in three separate lines.

• Use a programming language's print function to output 'hello' on the first line, 'world' on the second line, and '!!' on the third line.

• In JavaScript, you can achieve this using console.log() function with line breaks like console.log('hello\nworld\n!!');

Count the occurrence of each character in a given string.

• Iterate through the string and use a hashmap to store the count of each character.

• Handle both uppercase and lowercase characters separately.

• Consider using ASCII values to map characters to their respective counts.

Git conflicts can be resolved by merging changes, resolving conflicts manually, and using tools like Git mergetool.

• Merge changes from the conflicting branches

• Resolve conflicts manually by editing the conflicting files

• Use Git mergetool to help resolve conflicts

• Commit the resolved changes after resolving conflicts

Content negotiation in ASP .Net Web API allows clients to request data in different formats like JSON, XML, etc.

• Content negotiation is the process of selecting the best representation for a given response when there are multiple representations available.

• In ASP .Net Web API, content negotiation is handled by the MediaTypeFormatter class which selects the appropriate formatter based on the request headers.

• Clients can specify their preferred media type using the 'Accept' header...read more

Dependency injection is a design pattern used to remove hard-coded dependencies and make code more flexible and testable.

• It allows objects to be created with their dependencies rather than having to create them within the object itself.

• It promotes loose coupling between objects.

• It makes code more modular and easier to maintain.

• Examples include using a DI container like Unity or Autofac, or manually injecting dependencies through constructors or properties.

Azure service is a cloud computing platform by Microsoft that provides various services for building, deploying, and managing applications.

• Azure service offers a wide range of services including virtual machines, storage, databases, and analytics.

• It also provides services for AI and machine learning, IoT, and DevOps.

• Azure service can be used for building and deploying web applications, mobile apps, and enterprise solutions.

• Some popular Azure services include Azure Virtual Mac...read more

Clustered index physically orders the data rows in the table, while non-clustered index does not.

• Clustered index determines the physical order of data rows in the table.

• Non-clustered index is a separate structure that contains pointers to the actual data rows.

• Clustered index is faster for retrieval of data in the order of the index key.

• Non-clustered index is faster for retrieval of data not in the order of the index key.