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Hitachi Digital Services Golang Developer Interview Questions, Process, and Tips
Hitachi Digital Services Golang Developer Interview Experiences
1 interview found
Sameer Kape
I applied via Approached by Company and was interviewed in Sep 2023. There was 1 interview round.
(4 Questions)
- Q1. I give you 3 in input output should be 14, I give you 4 in input output should be 30
- Ans.
The output is calculated using a mathematical formula based on the input number.
The formula to calculate the output is: output = (input^2) + (input * 2)
For example, for input 3: output = (3^2) + (3 * 2) = 9 + 6 = 15
For example, for input 4: output = (4^2) + (4 * 2) = 16 + 8 = 24
- Q2. What is goroutine?
- Ans.
Goroutine is a lightweight thread of execution that allows concurrent programming in Go.
Goroutines are functions or methods that run concurrently with other goroutines.
They are managed by the Go runtime and have their own stack space.
Goroutines are more efficient than traditional threads and can be created easily using the 'go' keyword.
They communicate with each other using channels, which are built-in data structures ...
- Q3. Write program in Go include goroutine channel and wg
- Ans.
A program in Go that demonstrates the use of goroutines, channels, and a wait group.
Create a goroutine that performs a task concurrently.
Use channels to communicate between goroutines.
Use a wait group to synchronize the completion of goroutines.
Example: Calculate the sum of numbers using multiple goroutines and a channel.
- Q4. Provide alternative for time.Sleep()
- Ans.
time.Ticker is an alternative for time.Sleep() to create a repeating timer.
Use time.Ticker to create a ticker that ticks at regular intervals.
Use the ticker's C channel to receive the ticks.
Stop the ticker when done using the Stop() method.
Interview Preparation Tips
I had to call off the interview in between since the questions getting unbearable
The kind of questions I faced were laughable. It changed my perception about the Hitachi as being an Japanese org I had huge respect for it. Quality of developers they hire and quality of interviews they conduct shows the how Hitachi operates in india.
For any clarifications mail me: *****
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Anonymous
I applied via Naukri.com and was interviewed in Nov 2023. There were 2 interview rounds.
(2 Questions)
- Q1. What is slice , Coding example on interface, What is difference between concurrency and parallelism
- Ans.
Slice is a dynamically-sized, flexible view of elements in an array. Concurrency is the ability to run multiple tasks at the same time, while parallelism is the actual execution of multiple tasks simultaneously.
Slice in Go is a reference to a portion of an array. It allows for dynamic resizing and manipulation of elements.
Example: var s []int = make([]int, 5) // creates a slice of length 5
Interfaces in Go define a set ...
- Q2. Coding questions on interface
Coding questions on slice and go routines
Interview Preparation Tips
Learn go routines and channels programming
Difference between concurrency and parallelism is must questions in many of the interviews
Skills evaluated in this interview
Selected
I applied via LinkedIn and was interviewed in Sep 2023. There were 4 interview rounds.
First round was aptitude test of 60 MCQs on Java , core Java in mettl platform.
Second round was coding round
one easy and one medium leetcode question.
(1 Question)
- Q1. In this round discussed about projects .
(1 Question)
- Q1. About yourself, what do you know about company? , How to overcome difficulties if task assigned is incomplete before due? Why are you switching job ? Are you ready to work on different techstack?
I applied via Naukri.com
(2 Questions)
- Q1. There were two technical and one HR round. Question were scenario based on sql and .net applications.
- Q2. Replication of Databases
- Ans.
Replication of databases involves copying and maintaining multiple copies of the same database for redundancy and fault tolerance.
Replication helps in ensuring high availability and fault tolerance by having multiple copies of the same data.
There are different types of replication such as master-slave replication, master-master replication, and multi-master replication.
Replication can be synchronous or asynchronous, wi...
(2 Questions)
- Q1. I was not selected for round two
- Q2. I am not aware of question in 2nd technical
(1 Question)
- Q1. I was not selected for HR round
Selected
I was interviewed in Aug 2024.
(1 Question)
- Q1. Project amd Advanced C++ concepts
C++ coding questions and logical questions
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
(1 Question)
- Q1. How does consumer, producer work in kafka
- Ans.
Consumers read data from topics, while producers write data to topics in Kafka.
Consumers subscribe to topics to read messages from them
Producers publish messages to topics for consumers to read
Consumers can be part of a consumer group to scale out consumption
Producers can specify key for messages to control partitioning
(3 Questions)
- Q1. Questions on spring boot and question around spring annotations and its benifits
- Q2. Questions on Java 8 - 21 versions such as virtual threads and stream API
- Q3. Question on Databases fundamentals.
Interview Preparation Tips
Sarankumar
Selected
I applied via Approached by Company and was interviewed in Jul 2024. There were 5 interview rounds.
Asked some basic level questions
Asked little bit hard questions
Asked depth questions and wrote some sample programs
(1 Question)
- Q1. Wrote some sample program
(1 Question)
- Q1. Salary discussion
Hackerrank coding round.
(1 Question)
- Q1. Questions and coding testing your OOPS knowledge
(1 Question)
- Q1. Every tech stack, SQL, OOPS, JAVA
Interview Preparation Tips
(1 Question)
- Q1. Java questions and oops concepts
(1 Question)
- Q1. Java concept and Java questions
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Hitachi Digital Services Golang Developer Interview Process
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