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Diebold Nixdorf
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Diebold Nixdorf Senior Systems Engineer Interview Questions and Answers for Experienced
Diebold Nixdorf Senior Systems Engineer Interview Experiences for Experienced
1 interview found
Anonymous
I applied via LinkedIn and was interviewed in Apr 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. What is the Structure of ATM machines
- Ans.
ATM machines have a standard structure with a few variations depending on the manufacturer.
ATM machines typically have a screen for displaying information and a keypad for entering data
They also have a card reader for reading bank cards and a dispenser for cash
Some ATMs may also have additional features such as a printer for receipts or a deposit slot for checks
The structure may vary slightly depending on the manufactu...
Interview Preparation Tips
Skills evaluated in this interview
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I was interviewed before Sep 2020.
(1 Question)
Round duration - 140 minutes
Round difficulty - Medium
Test timing was at 2:00 pm , it was conducted in a college and the environment was good for the test. Camera was a primary part of test, so no suspicious activity.
- Q1.
Sum of Two Numbers Represented as Arrays
Given two numbers in the form of two arrays where each element of the array represents a digit, calculate the sum of these two numbers and return this sum as an ar...
- Ans.
Given two numbers represented as arrays, calculate their sum and return the result as an array.
Iterate through the arrays from right to left, adding digits and carrying over if necessary
Handle cases where one array is longer than the other by considering the remaining digits
Ensure the final sum array does not have any leading zeros
Round duration - 20 minutes
Round difficulty - Easy
The round was conducted at around 12 p.m. I was called at the college location and then it was conducted. The interviewer was quite polite and frank.
Round duration - 8 minutes
Round difficulty - Easy
This round was conducted right after finishing and clearing the technical round at the same place and on the same day.
Interview Preparation Tips
Tip 1 : Practice atleast 2-3 Coding problems daily so your logic building becomes stronger.
Tip 2 : Exercise problems based on OOPS concepts and others too.
Tip 3 : If you can have your own project built, then it's the major point and will act as a plus point.
Tip 1 : Your resume should be in standard form, short and simple will be more effective.
Tip 2 : Whatever you have learned, you need to mention it in your resume as that will be your primary source of selection and having project on your resume is important.
Skills evaluated in this interview
I applied via Campus Placement and was interviewed before Jun 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Tell me about Yourself, some questions related to machine learning, and I was asked more questions to differentiate like differences between ml and ai, python and c, c and java and procedural and functiona...
Interview Preparation Tips
I was interviewed before Jun 2021.
(2 Questions)
Round duration - 180 minutes
Round difficulty - Easy
It was an mcq + coding round. There were aptitude and ouput based question in mcq. And coding questions were easy
- Q1.
Find the Duplicate Number Problem Statement
Given an integer array 'ARR' of size 'N' containing numbers from 0 to (N - 2). Each number appears at least once, and there is one number that appears twice. Yo...
- Ans.
Find the duplicate number in an array of integers from 0 to (N-2).
Iterate through the array and keep track of the frequency of each number using a hashmap.
Return the number with a frequency greater than 1 as the duplicate number.
Time complexity can be optimized to O(N) using Floyd's Tortoise and Hare algorithm.
- Q2.
Reverse String Operations Problem Statement
You are provided with a string
Sand an array of integersAof sizeM. Your task is to performMoperations on the string as specified by the indices in arrayA... - Ans.
Given a string and an array of indices, reverse substrings based on the indices to obtain the final string.
Iterate through the array of indices and reverse the substrings accordingly
Ensure the range specified by each index is non-empty
Return the final string after all operations are completed
Round duration - 60 Minutes
Round difficulty - Easy
It was technical + hr round. there were 2 people as interviewer. They stated from intro and asked some basic puzzles and hr questions. After that they asked about my projects, technologies and some ds algo and dbms questions.
Interview Preparation Tips
Tip 1 : Practice aptitude
Tip 2 : Focus on practicing coding
Tip 3 : Learn from mistakes
Tip 1 : Mention some projects that you have done
Tip 2 : Try to have skills that are required for the role
Skills evaluated in this interview
Interview Questionnaire
6 Questions
- Q1. What is fan trap? How to solve it? Give one example.
- Ans.
Fan trap is a situation in which a query involving multiple tables results in a Cartesian product.
Fan trap occurs when a table is connected to multiple tables in a one-to-many relationship.
It can be solved by creating a bridge table or by using aggregate functions.
For example, if a customer table is connected to an orders table and a products table, a fan trap can occur when trying to retrieve information about custome...
- Q2. Two tables are joined. But joined type are not mentioned, then how much records will retrieve using select statement.
- Q3. How to use dynamic break in report?
- Ans.
Dynamic break in report allows for automatic page breaks based on data.
Define a break field in the report design
Set the break field to trigger a page break when its value changes
Use dynamic break to automatically adjust page breaks based on data
Example: A report on sales by region can use dynamic break to create a new page for each region
- Q4. Use of foreach function in report.
- Ans.
Foreach function is used to iterate through an array of strings in a report.
Foreach function is used to loop through each element in an array of strings.
It can be used to display each element in a report.
Example: foreach(string item in stringArray){ Console.WriteLine(item); }
- Q5. What is Aggregate awareness? When we use it? Syntax of it.
- Ans.
Aggregate awareness is a feature in Business Objects that allows reports to be optimized for performance by using aggregate tables.
Aggregate awareness is used when creating reports in Business Objects
It allows the report to use aggregate tables instead of detailed tables for improved performance
Syntax: AGGR_AWARE(
, , )
Example: AGGR_AWARE(Product, Sum(Sales), Sales_Fact_Table)
Answered by AIAdd your answer- Q6. @prompt function syntax and it's use.
- Ans.
The @prompt function syntax is used to display a prompt message to the user and receive input.
The syntax is @prompt('message', 'default value')
The message is the prompt message to be displayed to the user
The default value is optional and will be displayed in the input field
The function returns the value entered by the user
Answered by AIAdd your answer 
I applied via Campus Placement and was interviewed before Jul 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Reverse an array
- Ans.
Reverse an array of strings
Iterate through the array from both ends and swap the elements
Continue swapping until the middle of the array is reached
Answered by AIView 1 more answerInterview Preparation Tips
Interview preparation tips for other job seekers - prepare DS and algo well and some general HR questionsSkills evaluated in this interview
I applied via Referral and was interviewed before Oct 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Mostly on core java n spring
Add your answerInterview Preparation Tips
Interview preparation tips for other job seekers - It's very simple and really cool I applied via Naukri.com and was interviewed before Mar 2021. There were 3 interview rounds.
Round 1 - Resume Shortlist
Pro Tip by AmbitionBox:Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.View all tipsRound 2 - HR(6 Questions)
- Q1. What is your family background?
- Q2. Why should we hire you?
- Q3. Where do you see yourself in 5 years?
- Q4. What are your salary expectations?
- Q5. What are your strengths and weaknesses?
- Q6. Tell me about yourself.
Add your answerAdd your answerAdd your answerAdd your answerAdd your answerAdd your answerRound 3 - Technical(1 Question)
- Q1. Do you have technical certifications? How many programming languages do you known? How many development tools have you used?
- Ans.
Yes, I have technical certifications and I am proficient in multiple programming languages and development tools.
I have certifications in Java and Python
I am proficient in Java, Python, C++, and JavaScript
I have used development tools such as Eclipse, Visual Studio Code, and PyCharm
Answered by AIAdd your answerInterview Preparation Tips
Interview preparation tips for other job seekers - Work on your soft skills
Move frequently
value your reputation
Get experience at a any company I applied via Company Website and was interviewed before Mar 2021. There were 3 interview rounds.
Round 1 - Resume Shortlist Pro Tip by AmbitionBox:Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.View all tipsRound 2 - Coding TestJava assesment.
Round 3 - HR(1 Question)
- Q1. Where do you see yourself in 5 years?
Add your answerInterview Preparation Tips
Interview preparation tips for other job seekers - Good company to start your career. Even if project managers or people wont support you, you will have teams and they will surely assist you with learning and progressing further.
Great to be part of Wipro!! Interview Preparation Tips
Interview preparation tips for other job seekers - they ask question on basics and concepts more, rest interview is easy. Tell us how to improve this page.
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12% more than the average Senior Systems Engineer Salary in IndiaView more detailsDiebold Nixdorf Senior Systems Engineer Reviews and Ratings
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