10+ Yash Vidya Public School Interview Questions and Answers

Yes, Go allows returning different data types. Go has OOP concepts and I have worked with microservices architecture.

• Go allows returning different data types using interfaces.

• I have worked with microservices architecture using Go and Docker.

• Go has OOP concepts like structs and methods.

Go is a fast, efficient, and easy-to-learn programming language with built-in concurrency features.

• Advantages of Go include its speed, simplicity, and concurrency features.

• Garbage collection is supported by other languages such as Java, Python, and Ruby.

• Go routines allow for easy and efficient concurrency without the need for traditional multithreading.

• Go is used by companies such as Google, Uber, and Dropbox for its performance and scalability.

Buffered channels have a fixed capacity while unbuffered channels have no capacity limit.

• Buffered channels allow sending multiple values without blocking until the buffer is full.

• Unbuffered channels block until the sender and receiver are both ready to communicate.

• Error handling methods include returning errors as values, using panic and recover, and logging errors.

• Errors can be solved by identifying the root cause, implementing a fix, and testing the solution.

Questions on Docker, Kubernetes, unit testing, looping concepts, and Go path and root.

• Docker is a containerization platform used for packaging and deploying applications. Kubernetes is a container orchestration tool used for managing containerized applications.

• Unit testing in Go can be done using the built-in testing package and the 'go test' command.

• Go has only one looping concept, the 'for' loop.

• Go path is the location where Go packages are installed and Go root is the loca...read more

Questions on Go programming language concepts

• Empty interface is an interface with no methods. Empty struct is a struct with no fields.

• Array has fixed size, slice is dynamic. Array is passed by value, slice is passed by reference.

• Function is standalone, method is associated with a type. Method has a receiver, function does not.

Complicity faced in project: Handling concurrent requests and ensuring data consistency

• Implemented mutex locks to prevent race conditions

• Used channels to coordinate communication between goroutines

• Ensured atomicity of operations on shared data

• Implemented retry mechanisms to handle failed requests

A channel is a way for goroutines to communicate with each other and synchronize their execution.

• Channels are typed and can only transmit values of that type.

• There are two types of channels: buffered and unbuffered.

• Unbuffered channels block until a sender and receiver are ready to communicate.

• Buffered channels have a fixed capacity and can transmit values without blocking until the buffer is full.

• Channels can be used to implement various synchronization patterns such as worke...read more

Buffered channels allow multiple senders to send data without blocking, while unbuffered channels block until data is received.

• Buffered channels have a fixed capacity and can store multiple values until they are received

• Unbuffered channels have no capacity and block until a receiver is ready to receive the data

• Buffered channels are useful for improving performance in cases where there are multiple senders

• Unbuffered channels are useful for synchronization between goroutines

• Exa...read more

Channels are used for communication and synchronization between goroutines in a project.

• Channels allow safe communication between goroutines without the need for locks or condition variables.

• They can be used to synchronize the execution of multiple goroutines.

• Channels can be used to implement pipelines, where each stage of the pipeline is a goroutine that communicates with the next stage through a channel.

• Channels can also be used to implement fan-out/fan-in patterns, where m...read more

10 Docker commands and their uses

• docker run - starts a new container

• docker stop - stops a running container

• docker ps - lists all running containers

• docker images - lists all available images

• docker build - builds an image from a Dockerfile

• docker push - pushes an image to a registry

• docker pull - pulls an image from a registry

• docker exec - runs a command in a running container

• docker rm - removes a container

• docker rmi - removes an image