Hitachi Digital Services Interview Questions and Answers

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
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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 ...read more
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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.
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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.
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Easy to medium level problem

Q1. OOPS concepts, ML algorithms used in the projects, insights of project .
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Q1. College experience especially when it is out home state, experiences related to trips and associations
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Q1. Core Java, Spring Boot
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Q1. Experience and role
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Q2. FinOps strategies
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Q1. Tell about P2P cycle
Ans. 
P2P cycle stands for Procure to Pay cycle, which involves the process of purchasing goods or services from a vendor and making payment for them.
• The cycle starts with the creation of a purchase order (PO) based on the requirements identified in the requisition.

• The vendor delivers the goods or services, and the receiving department confirms receipt in the system.

• An invoice is generated by the vendor and matched with the ...read more
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Q1. Personal n mental screening
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Q1. Salary ok or not
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Q1. Subject matter questions
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Q2. Oracle fusion SCM related
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Q1. Subject matter questions
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