Apptad Technologies Interview Questions and Answers

Aptitude + Coding round
duration was 1 hr 30 mins
Topics were basic aptitude for interviews
Coding topics was - Stack and Greedy

Q1. Why python and explain about list.
Ans. 
Python is a popular programming language known for its simplicity and readability. Lists in Python are versatile data structures that can hold multiple items of different types.
• Python is widely used in software development due to its ease of use and readability.

• Lists in Python are ordered collections of items, which can be of different data types.

• Lists can be modified, appended, sorted, and sliced in Python.

• Example: li
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Q2. Print Spiral matrix (twisted leetcode question)
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Q3. Print the summation of all the digit until the length of the digit is 1
Ans. 
Sum all digits until single digit is reached
• Iterate through each digit and add them together

• Repeat the process until the sum is a single digit

• Example: For input 1234, sum = 1+2+3+4 = 10, then sum = 1+0 = 1
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Verbal communicatiom, attention to detail, email writing part

Q1. General question with maths
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Q2. Percentage related sums
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Q1. Interview question with maths
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Q2. Percentage , profit related sums
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Basic aptitude assessment along with some theoretical components.

Q1. Basic questions in Java, SQL and React
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Q1. Project related questions
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Q2. Coding question->Reverse String(World Hello), pattern, prime number
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Q1. What are the different osi layers
Ans. 
The OSI (Open Systems Interconnection) model consists of 7 layers that define the functions of a network communication system.
• Physical Layer: Deals with physical connections and transmission of raw data.

• Data Link Layer: Manages data frames and error detection/correction.

• Network Layer: Handles routing and logical addressing.

• Transport Layer: Ensures end-to-end communication and data flow control.

• Session Layer: Establishe...read more
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Q1. Basic details about yourself
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Q1. What are some ways to avoid deadlock?
Ans. 
Avoid deadlock by implementing proper resource allocation strategies and using techniques like timeouts and resource ordering.
• Implement proper resource allocation strategies to prevent multiple processes from holding resources indefinitely.

• Use timeouts to limit the amount of time a process can wait for a resource before releasing it.

• Follow a strict resource ordering protocol to ensure processes request and release reso...read more
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Q1. Stlc and testing siills
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Q2. Manual testing
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Q1. How do agile methodologies function in B2B projects?
Ans. 
Agile methodologies in B2B projects involve frequent communication, adaptability, and collaboration with stakeholders.
• Agile methodologies in B2B projects prioritize customer collaboration and responding to change over following a strict plan.

• Regular feedback from stakeholders helps in adjusting project scope and priorities in real-time.

• Cross-functional teams work together closely to deliver incremental value to the B2B...read more
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Q2. What is your experience with barcode scanners?
Ans. 
I have extensive experience working with barcode scanners in various automation projects.
• Implemented barcode scanning functionality in warehouse management system to track inventory

• Integrated barcode scanners with automated testing tools for regression testing

• Utilized barcode scanners in manufacturing processes to improve efficiency and accuracy
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Q1. GMS Integration and Certification
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Q2. Build process, bug fixing and debugging tools
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Q1. Salary expectations
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Q2. Location specific question
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Q1. How to rotate a matrix?
Ans. 
To rotate a matrix, transpose it and then reverse each row or column depending on the direction of rotation.
• Transpose the matrix by swapping elements across the diagonal

• For clockwise rotation, reverse each row of the transposed matrix

• For anti-clockwise rotation, reverse each column of the transposed matrix
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Q2. How to find a particular element in a sorted array?
Ans. 
Use binary search to efficiently find a particular element in a sorted array.
• Start by comparing the target element with the middle element of the array.

• If the target element is less than the middle element, search the left half of the array.

• If the target element is greater than the middle element, search the right half of the array.

• Repeat the process until the target element is found or the search space is empty.
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