Betsol Interview Questions and Answers

Basic MCQ on numbers, series, velocity, time and distance and 2 coding questions

A common topic among 7 people are given

Q1. Second largest element of array
Ans. 
Find the second largest element in an array of strings.
• Convert the strings to integers for comparison.

• Sort the array in descending order.

• Return the second element in the sorted array.
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Q2. Sql queries on joins
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Q3. Oops concepts with code
Ans. 
Oops concepts are fundamental principles of object-oriented programming. They include inheritance, polymorphism, encapsulation, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class Dog extends Animal.

• Polymorphism: Allows objects of different classes to be treated as objects of a common superclass. Example: Animal animal = new Dog();

• Encapsulation: Bundling dat...read more
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Q4. DSA sorting algorithm
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DSA sorting algorithms are used to arrange elements in a specific order.
• Common sorting algorithms include Bubble Sort, Selection Sort, Insertion Sort, Merge Sort, Quick Sort, etc.

• Complexity of sorting algorithms varies - some are more efficient for large datasets.

• Example: Bubble Sort compares adjacent elements and swaps them if they are in the wrong order.
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Q5. Time complexity
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Q1. Python basic questions
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Q2. SQL query on normalisation
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Q3. Oops pillars concepts
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Q4. Projects based questions
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Q1. Why should we hire you
Ans. 
I am a highly motivated and skilled software engineer with a strong technical background and a passion for learning and problem-solving.
• I have a solid understanding of software development principles and practices

• I have experience working on various projects and technologies, including Java, Python, and SQL

• I am a quick learner and adapt easily to new environments and challenges

• I am a team player and have excellent comm...read more
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Q2. How would you make the best out of the opportunities you have
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I would make the best out of opportunities by setting clear goals, seeking feedback, networking, and continuously learning and improving.
• Set clear goals to focus on what I want to achieve

• Seek feedback from mentors and colleagues to identify areas for improvement

• Network with professionals in the industry to explore new opportunities

• Continuously learn and improve my skills through courses, workshops, and self-study
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Q3. Can you deal with stress
Ans. 
Yes, I can deal with stress effectively by practicing mindfulness, time management, and seeking support when needed.
• I practice mindfulness techniques such as deep breathing and meditation to stay calm under pressure.

• I prioritize tasks and manage my time effectively to prevent feeling overwhelmed.

• I am not afraid to seek support from colleagues or supervisors when facing a challenging situation.

• I maintain a healthy work-...read more
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Q4. Have you ever lead a team or a project
Ans. 
Yes, I have led a team on a project during my time at XYZ company.
• Led a team of 5 developers on a mobile app development project

• Assigned tasks, set deadlines, and conducted regular meetings to track progress

• Successfully delivered the project on time and within budget
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Q5. Strengths and weakness
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It was easy, and time limit was 40 mins 50 question.

Arrays and Strings que were asked.

Q1. Tell about your project?
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Q2. Whats the difference bn confidence and over confidence
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Genral aptitude based on work , time , streams, speed , mixtures , ratio etc

Q1. What are symmetric and asymetric keys in cryptography ?
Ans. 
Symmetric keys use the same key for encryption and decryption, while asymmetric keys use a pair of public and private keys.
• Symmetric keys are faster and simpler, but require secure key exchange. Example: AES encryption.

• Asymmetric keys provide better security and do not require secure key exchange. Example: RSA encryption.

• Symmetric keys are typically used for encrypting large amounts of data, while asymmetric keys are u
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Q2. How to defend from DDOS attack ?
Ans. 
Defend against DDOS attacks by implementing strong network security measures.
• Use a firewall to filter out malicious traffic

• Implement rate limiting to prevent overwhelming the server

• Utilize a content delivery network (CDN) to distribute traffic and absorb attacks

• Deploy DDOS mitigation services such as Cloudflare or Akamai

• Regularly monitor network traffic for any unusual patterns
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Q3. Different types of attacks ?
Ans. 
Different types of attacks include phishing, malware, DDoS, SQL injection, and social engineering.
• Phishing: fraudulent emails or websites to trick users into revealing sensitive information

• Malware: malicious software designed to harm a computer system

• DDoS (Distributed Denial of Service): overwhelming a system with traffic to make it unavailable

• SQL injection: inserting malicious SQL code into input fields to manipulate ...read more
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