Temenos Technical Lead Interview Questions and Answers for Experienced

Q1. Questions were mostly around system design, you will be given a case like a stock system and specific use case is asked to design end to end from UI to backend.
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Q2. Some of the system debugging/performance improvement questions are asked from both UI and backend.
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Q1. Transaction in Spring Boot
Ans. 
Transactions in Spring Boot help manage database operations as a single unit of work.
• Transactions ensure ACID properties (Atomicity, Consistency, Isolation, Durability) for database operations.

• Use @Transactional annotation to mark a method as transactional.

• Transactions can be managed programmatically using TransactionTemplate.

• Rollback can be triggered manually in case of exceptions.

• Spring Boot supports both declarative
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Q2. Java Array and problem solving
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Q1. OOPS hibernate
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Q2. String Angular javascript node js
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Q1. Work invironmet
Ans. 
Collaborative, fast-paced, innovative work environment with emphasis on teamwork and continuous learning.
• Open communication and collaboration among team members

• Fast-paced and dynamic work environment

• Emphasis on innovation and creativity

• Teamwork and support for continuous learning and growth
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Q2. My thoughts ,what is work process
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Q1. Why do you want to join this company?
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Q2. Why are you interested in customer service?
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Q3. Tell me about yourself?
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Q4. Do you know about BPO?
Ans. 
BPO stands for Business Process Outsourcing.
• BPO involves contracting out specific business functions to a third-party service provider.

• Common BPO services include customer support, accounting, and human resources.

• BPO can help companies save costs and improve efficiency.

• Examples of BPO companies include Accenture, IBM, and Infosys.
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Q5. Can you work under pressure?
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Aptitude test will a hackerrank test where it might have technical MCQ and/or coding test.

Q1. Interviewer will test your logic building capability with puzzel/coding and technical questions and experience discussion.
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Q1. Its a normal discussion with HR about CTC and all.
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Round duration - 60 minutes
Round difficulty - Easy

This was a technical round with questions on DBMS.

Q1. What is data integrity?
Ans. 
Data integrity refers to the accuracy, consistency, and reliability of data throughout its lifecycle.
• Data integrity ensures that data is accurate and consistent in storage and transmission.

• It involves maintaining the quality and reliability of data over time.

• Methods for ensuring data integrity include checksums, encryption, and error detection codes.

• Examples of data integrity violations include data corruption, unautho
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Q2. What is a trigger in the context of a database management system?
Ans. 
A trigger is a special type of stored procedure that automatically executes when certain events occur in a database.
• Triggers are used to enforce business rules, maintain data integrity, and automate repetitive tasks.

• They can be triggered by INSERT, UPDATE, or DELETE operations on a table.

• Examples of triggers include auditing changes to a table, updating related tables when a record is modified, or enforcing referential
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Q3. What is the difference between clustered and non-clustered indexes in a database management system?
Ans. 
Clustered indexes physically order the data in the table, while non-clustered indexes do not.
• Clustered indexes determine the physical order of data in the table, while non-clustered indexes do not.

• A table can have only one clustered index, but multiple non-clustered indexes.

• Clustered indexes are faster for retrieval of data, especially range queries, compared to non-clustered indexes.

• Non-clustered indexes are stored se...read more
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Round duration - 60 minutes
Round difficulty - Easy

Technical interview round with questions on DBMS.

Q1. What is the difference between UNION and UNION ALL in SQL?
Ans. 
UNION combines and removes duplicates, UNION ALL combines without removing duplicates.
• UNION merges the result sets of two or more SELECT statements and removes duplicates.

• UNION ALL merges the result sets of two or more SELECT statements without removing duplicates.

• UNION is slower than UNION ALL as it involves removing duplicates.

• Example: SELECT column1 FROM table1 UNION SELECT column1 FROM table2;

• Example: SELECT column...read more
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Q2. What are the functions of a cursor in PL/SQL?
Ans. 
A cursor in PL/SQL is used to retrieve and process multiple rows of data one at a time.
• Allows iteration over a result set

• Retrieves data row by row

• Can be used to update or delete rows in a table

• Must be declared, opened, fetched, and closed
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Q3. Write a SQL query to fetch the nth highest salary from a table.
Ans. 
SQL query to fetch the nth highest salary from a table
• Use the ORDER BY clause to sort salaries in descending order

• Use the LIMIT clause to fetch the nth highest salary
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Round duration - 30 minutes
Round difficulty - Easy

This was a managerial round with typical behavioral problems.

Round duration - 75 minutes
Round difficulty - Hard

Coding Test with 3 problems. 1 Easy , 1 Medium , 1 Very Hard

Q1. 
Job Scheduling Problem
You are provided with a list of jobs, where each job has a specific deadline and profit. The goal is to schedule these jobs such that the total profit is maximized. Each job require...read more
Ans. 
The goal is to schedule jobs to maximize profit while meeting deadlines. Each job takes one unit of time and only one job can be scheduled at a time.
• Sort the jobs in decreasing order of profit

• Iterate through the sorted jobs and schedule them based on their deadlines

• Keep track of the total profit achieved

• Ensure each job is completed before its deadline
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Q2. 
Spiral Order Traversal of a Binary Tree
Given a binary tree with N nodes, your task is to output the Spiral Order traversal of the binary tree.
Input:
The input consists of a single line containing elem...read more
Ans. 
Implement a function to return the spiral order traversal of a binary tree.
• Traverse the binary tree level by level, alternating between left to right and right to left.

• Use a queue to keep track of nodes at each level.

• Append nodes to the result list in the order they are visited.
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Q3. 
Structurally Unique Binary Trees of Dragon Balls
Goku has ‘N’ Dragon Balls, where each Dragon Ball is unique. The ith Dragon Ball has ‘i’ stars on it, meaning the first Dragon Ball has 1 star, the second ...read more
Ans. 
Count the number of structurally unique binary trees that can be constructed with given Dragon Balls.
• Use dynamic programming to solve this problem efficiently.

• The number of structurally unique binary trees can be calculated using Catalan numbers.

• For each test case, calculate the number of structurally unique binary trees modulo 10^9 + 7.

• Return the count of unique binary trees for each test case.
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Round duration - 60 minutes
Round difficulty - Hard

In depth questions on Subjects like OOP , DBMS , OS , Javascript.

Round duration - 40 minutes
Round difficulty - Hard

Questions on my resume, projects, internship done. Interviewer was a bit harsh on me.

Q1. What are the differences between low-level and high-level programming languages, and can you explain some kernel-related questions?
Ans. 
Low-level languages interact directly with hardware, while high-level languages are more abstract and easier to read/write.
• Low-level languages are closer to machine code and hardware, while high-level languages are closer to human language.

• Low-level languages require more manual memory management and are less portable, while high-level languages have automatic memory management and are more portable.

• Examples of low-lev...read more
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