About fsl
Company Description
Fsl is a forward-thinking organization that specializes in providing innovative solutions across various sectors, including technology, consulting, and project management. With a commitment to excellence, Fsl fosters a collaborative work culture that values creativity, diversity, and continuous learning. The company encourages open communication and teamwork, allowing employees to thrive in a dynamic environment. Fsl believes in empowering its workforce through professional development opportunities, ensuring that each team member contributes to the company's success while achieving personal growth. Our inclusive job environment prioritizes work-life balance and promotes a strong sense of community among employees.
Software Engineer Interview Questions
Q1: Can you describe your experience with programming languages and which ones you are most proficient in?
I have extensive experience with Java and Python, having used them to develop various applications. I am also familiar with JavaScript and C++, which I have employed in web development and systems programming projects.
Q2: How do you approach debugging an application?
When debugging, I first try to reproduce the issue to understand its context. Then, I use debugging tools and logs to identify the root cause. I typically isolate the problem by commenting out code sections or using print statements to track variable states.
Q3: Can you explain the concept of Object-Oriented Programming (OOP)?
OOP is a programming paradigm based on the concept of objects, which can contain data and code: attributes and methods. The four main principles of OOP are encapsulation, inheritance, polymorphism, and abstraction, which help in organizing complex software systems.
Q4: Describe a challenging project you worked on and how you overcame the obstacles.
One challenging project involved integrating multiple APIs into a single application. The main obstacle was handling differing data formats. I overcame this by implementing a data transformation layer that standardized the input and output formats, ensuring seamless integration.
Q5: How do you stay updated with the latest technologies and trends in software development?
I regularly follow industry blogs, participate in online forums, and attend webinars and conferences. Additionally, I take online courses to learn new technologies and apply them in personal projects to solidify my understanding.
Project Manager Interview Questions
Q1: How do you prioritize tasks in a project with tight deadlines?
I prioritize tasks by assessing their impact on project goals and deadlines. I use project management tools to create a clear timeline and allocate resources accordingly, focusing first on high-impact tasks that directly influence project outcomes.
Q2: Can you describe your experience with Agile methodology?
I have worked extensively with Agile methodologies, particularly Scrum. I have facilitated sprint planning, daily stand-ups, and retrospectives, ensuring that the team remains focused on delivering value while adapting to changing requirements.
Q3: How do you handle conflicts within your project team?
I address conflicts by promoting open communication and understanding the perspectives of each team member involved. I facilitate discussions to identify common goals and work collaboratively towards a resolution, ensuring that all voices are heard.
Q4: What tools do you use for project management and why?
I use tools like Jira and Trello for tracking progress and managing tasks, as they provide excellent visualization of project statuses. For documentation, I prefer Confluence, which allows for easy collaboration and knowledge sharing among team members.
Q5: Can you give an example of how you managed a project that faced significant changes in scope?
In a previous project, the client requested major changes halfway through. I organized a meeting to reassess project goals and deliverables, then worked with the team to adjust timelines and resources. By maintaining transparency with the client, we managed to deliver a successful outcome despite the changes.
Data Analyst Interview Questions
Q1: What data analysis tools and software are you proficient in?
I am proficient in using tools like Excel for data manipulation, SQL for querying databases, and Python with libraries like Pandas and Matplotlib for data analysis and visualization. I also have experience with Tableau for creating interactive dashboards.
Q2: How do you ensure the accuracy of your data analysis?
I ensure accuracy by validating data sources, performing data cleaning processes, and cross-referencing results with other datasets. I also implement checks at various stages of analysis to catch potential errors early.
Q3: Can you explain the difference between descriptive and inferential statistics?
Descriptive statistics summarize and describe the main features of a dataset, while inferential statistics use a random sample of data to make inferences about a larger population. Descriptive statistics provide insights into what the data shows, while inferential statistics help in making predictions or generalizations.
Q4: Describe a time when you used data to influence a business decision.
In my previous role, I analyzed customer feedback data to identify trends in product dissatisfaction. I presented my findings to the management team, which led to targeted improvements in the product features, ultimately increasing customer satisfaction and retention.
Q5: How do you approach creating a data visualization?
I begin by understanding the key message I want to convey and the audience's needs. I then choose the appropriate type of visualization (e.g., bar chart, line graph) and ensure that the design is clear and informative, focusing on readability and ease of interpretation.
Company Background and Industry Position
FSL has established itself as a significant player in the technology and engineering consulting space. While not as household a name as some tech giants, it commands respect thanks to its focused expertise and steady growth trajectory. They tend to operate in niche markets—industrial automation, software integration, and specialized hardware solutions—where deep technical knowledge and precision craftsmanship are pivotal.
The company's approach to innovation is methodical, combining legacy engineering principles with modern tech trends. It's not the kind of place chasing flashy buzzwords without substance. Instead, FSL builds on solid foundations, which reflects in their recruitment style and candidate expectations.
In the broader industry context, FSL competes with firms like ABB, Siemens, and smaller specialized consultancies. Its hiring reflects a balance between maintaining technical rigor and adapting to evolving digital landscapes, making it an interesting case study for job seekers in engineering and tech roles.
How the Hiring Process Works
- Application and Resume Screening: The journey starts with a sharp focus on eligibility criteria. Recruiters sift through hundreds of profiles quickly, looking for candidates whose skills precisely align with the job roles on offer. Experience with specific technologies or certifications can make or break this stage.
- Initial HR Interview: This is often a phone or video call that assesses cultural fit and soft skills. At this point, the recruiter gauges motivation, communication, and basic profile alignment. It’s less technical but crucial for understanding the candidate’s mindset.
- Technical Assessment: Depending on the role, candidates might face coding tests, system design problems, or even practical engineering challenges. The objective is clear: separate the theoretically sound from the practically capable.
- Technical Interview Rounds: Multiple rounds, typically involving domain experts, dive deeper into the candidate’s expertise. This stage often tests problem-solving under pressure, application of knowledge to real-world scenarios, and adaptability.
- Managerial Interview: Here, leadership potential, project management experience, and alignment with business goals come under scrutiny. It’s a chance to demonstrate strategic thinking beyond just technical prowess.
- Offer and Negotiation: After thorough evaluation, shortlisted candidates receive offers. FSL tends to be competitive but measured with salary ranges, reflecting their market stance and internal parity.
While this sequence might feel typical, what sets FSL apart is the deliberate pacing and emphasis on practical expertise. Each step filters candidates with a clear rationale—eliminating guesswork and rewarding genuine capability.
Interview Stages Explained
Application and Resume Screening
FSL’s recruiters are trained to spot relevance immediately. They don’t just skim for keywords but assess how a candidate's background fits the job roles on a granular level. For instance, candidates applying for embedded systems roles would do well to highlight specific microcontroller experience and related projects—generic “hardware experience” doesn’t cut it.
Expect to be evaluated on certifications, project depth, and even the narrative consistency of your career path. The goal is to ensure only aligned candidates make it to the next step, saving everyone time.
HR Interview
The HR round isn't just a formality; it’s designed to measure whether you’d thrive in FSL’s culture. They probe your motivation, communication style, and understanding of the company’s business model. Candidates often find this stage surprisingly interactive, sometimes even a bit conversational.
Here, clarity about your career goals, willingness to learn, and basic interpersonal skills matter more than technical jargon. It’s your first real human connection with the company, so being authentic helps.
Technical Assessment
Depending on the role, this may take various shapes: an online coding challenge for software positions, a case study for consulting roles, or a technical quiz for hardware engineers. The tests aren’t just about raw knowledge but also problem-solving approach and clarity of thought.
Why this step? FSL wants to quickly verify your baseline technical competence before investing time in elaborate interviews. It’s a filter that rewards preparation and depth over speed alone.
Technical Interview Rounds
These are the heart of the hiring process. Candidates can expect to face specialists who will dissect their understanding of relevant technologies, frameworks, and problem-solving methodologies. For example, a candidate for a network engineering job might be asked to design fault-tolerant systems on the spot.
The interviews are intense because FSL values practical application. It’s common for panels to present hypothetical problems that mirror real client challenges, testing whether you can think critically under pressure.
Managerial Interview
Not everyone reaches this stage, but when you do, it’s a shift in tone. Beyond skills, this round evaluates your alignment with the company’s strategic objectives and leadership qualities. Typically, you’ll discuss project experiences, conflict resolution, and vision for your role.
Interviewers here want to see whether you can grow with the company and potentially lead teams. It’s part technical but largely about mindset and soft skills.
Offer and Negotiation
Post evaluation, the offer stage combines formal steps with negotiation nuances. FSL maintains structured salary ranges but exhibits some flexibility based on candidate experience and market trends. Candidates should prepare by understanding industry benchmarks and articulating their value clearly.
Expect discussions on benefits, work location, and growth opportunities alongside salary. The company values transparent communication here, often encouraging candidates to voice concerns openly.
Examples of Questions Candidates Report
- Technical questions: “Explain the difference between TCP and UDP and use cases where one is preferred over the other.”
- Coding challenges: “Write a function to detect cycles in a directed graph.”
- Behavioral: “Describe a situation where you disagreed with a team member and how you resolved it.”
- Scenario-based: “How would you approach troubleshooting a system outage that affects multiple clients?”
- Managerial: “What strategies do you use to manage project deadlines amidst shifting priorities?”
These questions reveal the company’s holistic approach—technical skill is fundamental, but communication, problem-solving, and leadership are equally weighted.
Eligibility Expectations
FSL’s bar isn’t just academic credentials but relevant experience and demonstrated skill. For entry-level roles, a bachelor’s degree in engineering, computer science, or related fields is standard, often accompanied by internships or project work that aligns with the job description.
Mid to senior roles require deeper domain expertise and often professional certifications. Also, candidates should be comfortable with cross-functional collaboration since roles often intersect between engineering, client interaction, and product teams.
One important note: FSL places strong emphasis on practical knowledge—so theoretical brilliance without hands-on experience sometimes is insufficient.
Common Job Roles and Departments
FSL’s hiring spans a spectrum of specialized roles beyond typical tech company profiles:
- Embedded Systems Engineer: Designing firmware and hardware interfaces for industrial devices.
- Software Developer: Building integration software, often focusing on performance and reliability.
- Network Engineer: Managing and optimizing complex client network architectures.
- Project Manager: Overseeing multi-disciplinary projects with a technical backbone.
- Quality Assurance Specialist: Ensuring product compliance and reliability in challenging environments.
Departments mirror this diversity, with engineering, R&D, client solutions, and operations being key pillars. Candidates should tailor their preparation to the nuances of their specific role but keep in mind the interconnected nature of these positions.
Compensation and Salary Perspective
| Role | Estimated Salary |
|---|---|
| Entry-Level Software Engineer | ₹4,00,000 – ₹7,00,000 per annum |
| Embedded Systems Engineer | ₹6,00,000 – ₹10,00,000 per annum |
| Network Engineer | ₹5,00,000 – ₹9,00,000 per annum |
| Project Manager | ₹10,00,000 – ₹18,00,000 per annum |
| Quality Assurance Specialist | ₹4,50,000 – ₹8,00,000 per annum |
Salaries vary by location, experience, and market demand. FSL tends to offer competitive packages within its niche, often balancing salary with benefits and learning opportunities to attract well-rounded candidates.
Interview Difficulty Analysis
Candidates often describe FSL interviews as challenging but fair. The difficulty is not about complexity for complexity’s sake but revolves around assessing whether you can solve problems realistically. It’s not uncommon to feel tested beyond textbook knowledge—expect curveball questions that force you to apply concepts creatively.
For some, the technical rounds can feel rigorous, especially when faced with domain experts who dig into implementation details. The HR and managerial rounds tend to be less stressful but can surprise candidates with unexpected behavioral questions.
Overall, if you come prepared with solid fundamentals and practical experience, you’ll find the process demanding but rewarding. Remember, FSL values problem-solving over memorization.
Preparation Strategy That Works
- Develop a deep understanding of core technologies relevant to your role rather than superficial coverage.
- Practice coding and system design problems regularly, focusing on clarity and explanation—not just the final solution.
- Review your past projects carefully, preparing to discuss challenges faced and how you resolved them.
- Research FSL’s industry segments and client profiles to frame your answers in a relevant business context.
- Prepare for behavioral questions by reflecting on real work situations where you demonstrated key soft skills.
- Engage in mock interviews with peers or mentors to build confidence and get feedback on communication.
- Understand current industry trends in your domain to confidently discuss how you can add value.
Work Environment and Culture Insights
From what insiders share, FSL fosters a culture that values perseverance, precision, and continuous learning. It’s not a fast-paced startup atmosphere; instead, the environment leans towards steady, thoughtful progress. Employees appreciate the respect for expertise and the collaborative spirit across teams.
Candidates often notice that management encourages knowledge sharing and supports professional growth, which is vital in a field that constantly evolves. However, like many specialized companies, some report that communication between departments can occasionally be siloed, making cross-team collaboration a skill worth cultivating.
Career Growth and Learning Opportunities
FSL places a strong emphasis on development pathways. Employees get access to training programs, certifications, and project leadership opportunities. Technical tracks run alongside managerial tracks, so individuals with different aspirations can find their path.
Learning is practically embedded into daily work due to the complex nature of client projects and technology stacks. New hires typically find themselves exposed to diverse challenges early on, accelerating skill acquisition.
That said, progression is often tied to demonstrated impact and initiative, with proactive candidates moving faster. It’s not a place for complacency—continuous improvement is expected.
Real Candidate Experience Patterns
Feedback from candidates paints a picture of a fairly transparent and structured process. Many appreciate the clarity of communication and the opportunity to meet diverse interviewers. One recurring theme is the respect interviewers show for honest answers—trying to bluff or guess often backfires.
Some candidates mention initial intimidation during technical rounds but highlight that interviewers often try to guide or hint if they see promise. The process can be lengthy, sometimes stretching over several weeks, which can test patience.
Ultimately, those who succeed tend to be those who combine technical skill with genuine enthusiasm for the company’s mission and technologies.
Comparison With Other Employers
Compared to larger tech firms, FSL’s hiring process feels more specialized and less standardized. For example, unlike hyperscale companies that rely heavily on algorithms and standardized coding tests, FSL’s assessments lean towards practical, role-specific challenges.
The recruitment rounds are fewer but deeper, requiring candidates to engage meaningfully with subject matter experts. This can be both a hurdle and a boon—candidates with niche expertise find a more fitting evaluation, while generalists might struggle.
Salary ranges at FSL are competitive in the engineering consulting domain but generally lower than those at big tech firms. However, the trade-off often comes in the form of richer domain experience and closer client interaction.
Expert Advice for Applicants
Don’t approach the fsl hiring process expecting to coast by on generic answers. The company looks for authenticity backed by solid preparation. Dive deep into your technical strengths, but also be ready to discuss how you’ve handled real-world problems.
Work on storytelling. The ability to narrate your experience effectively often sets candidates apart. When faced with tricky questions, don’t panic—think aloud and share your reasoning. It shows transparency and problem-solving style.
Also, research the company and its industry thoroughly. Tailoring your responses to demonstrate understanding of their business challenges can leave a strong impression.
Finally, balance confidence with humility. FSL values those who know their limits and are eager to learn, not just those who claim to know everything.
Frequently Asked Questions
What types of interview questions does FSL typically ask?
FSL’s questions span technical domains aligned with the job role, behavioral scenarios, and problem-solving challenges. Expect a mix of direct technical queries, coding or design tasks for software roles, and situational questions that assess your approach and mindset.
How many recruitment rounds are there usually?
The selection process typically involves around three to five rounds, including resume screening, HR interview, one or two technical interviews, and a managerial round for senior candidates.
What is the level of technical difficulty in FSL interviews?
The technical interviews are moderately to highly challenging, emphasizing practical knowledge and real-world problem-solving rather than theoretical questions. Candidates should be ready for deep dives into their domain expertise.
Does FSL provide feedback to candidates post-interview?
While practices vary, many candidates report receiving constructive feedback or updates about their application status, which reflects the company’s commitment to a positive candidate experience.
What are the key eligibility criteria for fresh graduates?
For entry-level positions, a relevant undergraduate degree with strong academic record, relevant internships/projects, and foundational technical skills aligned with the role are essential.
How does FSL compare with larger tech companies in terms of hiring?
FSL’s process is more tailored and domain-specific, often less bureaucratic but with greater emphasis on practical expertise. Salaries may be lower but compensated by more hands-on roles and client-facing opportunities.
Final Perspective
Engaging with FSL’s hiring process is a journey into a specialized corner of the technology landscape. It rewards depth over breadth, practical know-how over textbook answers, and genuine curiosity over rehearsed scripts.
For candidates ready to immerse themselves in a technically demanding yet supportive environment, FSL offers not just a job but a chance to build meaningful expertise. Yes, the path is rigorous, and the interviews can be intense. Yet, those who prepare strategically, reflect authentically on their experience, and approach the process with confidence tend to find a rewarding match.
Remember, recruitment is as much about your fit with the company as their fit with your aspirations. With thoughtful preparation and clear-eyed expectations, navigating FSL’s hiring rounds can become a career-defining milestone.
fsl Interview Questions and Answers
Updated 21 Feb 2026Customer Service Representative Interview Experience
Candidate: Emily Chen
Experience Level: Entry-level
Applied Via: Walk-in application
Difficulty: Easy
Final Result:
Interview Process
1 round
Questions Asked
- How do you handle upset customers?
- Describe a time you provided excellent service.
- Are you comfortable working in a fast-paced environment?
Advice
Show enthusiasm and strong communication skills.
Full Experience
The interview was friendly and situational. They focused on my interpersonal skills and ability to stay calm under pressure.
Compliance Specialist Interview Experience
Candidate: David Patel
Experience Level: Mid-level
Applied Via: Recruitment agency
Difficulty:
Final Result: Rejected
Interview Process
2 rounds
Questions Asked
- What compliance frameworks are you familiar with?
- How do you handle compliance breaches?
- Describe a time you improved compliance processes.
Advice
Gain deeper knowledge of industry-specific regulations and provide concrete examples.
Full Experience
The first round was a phone interview focusing on compliance knowledge. The second round was a case study presentation. I felt my examples were not detailed enough.
Risk Manager Interview Experience
Candidate: Cynthia Gomez
Experience Level: Senior
Applied Via: LinkedIn job posting
Difficulty: Hard
Final Result:
Interview Process
3 rounds
Questions Asked
- Describe your experience with risk mitigation strategies.
- How do you stay updated with regulatory changes?
- Give an example of a risk you successfully managed.
- What software tools do you use for risk analysis?
Advice
Prepare detailed examples from your past roles and demonstrate knowledge of current regulations.
Full Experience
The process was intense with a technical test, a panel interview, and a final discussion with senior management. They valued strategic thinking and leadership.
Loan Officer Interview Experience
Candidate: Brian Lee
Experience Level: Entry-level
Applied Via: Referral from a current employee
Difficulty: Easy
Final Result: Rejected
Interview Process
1 round
Questions Asked
- Why do you want to work in lending?
- How would you handle a difficult customer?
- What do you know about our loan products?
Advice
Gain more customer service experience and familiarize yourself with loan products.
Full Experience
The interview was conversational and focused on soft skills. I felt underprepared on product knowledge which might have affected the outcome.
Credit Analyst Interview Experience
Candidate: Alice Johnson
Experience Level: Mid-level
Applied Via: Online application via company website
Difficulty:
Final Result:
Interview Process
2 rounds
Questions Asked
- Explain the process of credit risk assessment.
- How do you handle incomplete financial data?
- Describe a time you identified a potential credit risk.
Advice
Brush up on financial analysis and be ready to discuss real-world scenarios.
Full Experience
The first round was a phone screening focusing on my background and basic credit knowledge. The second round was an in-person technical interview with case studies. The interviewers were friendly and focused on practical skills.
Frequently Asked Questions in fsl
Have a question about the hiring process, company policies, or work environment? Ask the community or browse existing questions here.
Common Interview Questions in fsl
Q: In a sports contest there were m medals awarded on n successive days (n > 1). 1. On the first day 1 medal and 1/7 of the remaining m - 1 medals were awarded. 2. On the second day 2 medals and 1/7 of the now remaining medals was awarded; and so on.On the nth and last day, the remaining n medals were awarded.How many days did the contest last, and how many medals were awarded altogether?
Q: A man has a wolf, a goat, and a cabbage. He must cross a river with the two animals and the cabbage. There is a small rowing-boat, in which he can take only one thing with him at a time. If, however, the wolf and the goat are left alone, the wolf will eat the goat. If the goat and the cabbage are left alone, the goat will eat the cabbage. How can the man get across the river with the two animals and the cabbage?
Q: A hare and a tortoise have a race along a circle of 100 yards diameter. The tortoise goes in one directionand the hare in the other. The hare starts after the tortoise has covered 1/5 of its distance and that too leisurely.The hare and tortoise meet when the hare has covered only 1/8 of the distance. By what factor should the hareincrease its speed so as to tie the race?
Q: 9 cards are there. You have to arrange them in a 3*3 matrix. Cards are of 4 colors. They are red, yellow, blue and green. Conditions for arrangement: one red card must be in first row or second row. 2 green cards should be in 3rd column. Yellow cards must be in the 3 corners only. Two blue cards must be in the 2nd row. At least one green card in each row.
Q: A rich man died. In his will, he has divided his gold coins among his 5 sons, 5 daughters and a manager. According to his will: First give one coin to manager. 1/5th of the remaining to the elder son.Now give one coin to the manager and 1/5th of the remaining to second son and so on..... After giving coins to 5th son, divided the remaining coins among five daughters equally.All should get full coins. Find the minimum number of coins he has?
Q: Consider a pile of Diamonds on a table. A thief enters and steals 1/2 of the total quantity and then again 2 extra from the remaining. After some time a second thief enters and steals 1/2 of the remaining+2. Then 3rd thief enters and steals 1/2 of the remaining+2. Then 4th thief enters and steals 1/2 of the remaining+2. When the 5th one enters he finds 1 diamond on the table. Find out the total no. of diamonds originally on the table before the 1st thief entered.
Q: T, U, V are 3 friends digging groups in fields. If T & U can complete i groove in 4 days &, U & V can complete 1 groove in 3 days & V & T can complete in 2 days. Find how many days each takes to complete 1 groove individually.
Q: The citizens of planet nigiet are 8 fingered and have thus developed their decimal system in base 8. A certain street in nigiet contains 1000 (in base 8) buildings numbered 1 to 1000. How many 3s are used in numbering these buildings?
Q: A light bulb is hanging in a room. Outside of the room there are three switches, of which only one is connected to the lamp. In the starting situation, all switches are 'off' and the bulb is not lit. If it is allowed to check in the room only once.How would you know which is the switch?
Q: ABCDE are sisters. Each of them gives 4 gifts and each receives 4 gifts No two sisters give the same combination ( e.g. if A gives 4 gifts to B then no other sisters can give four to other one.)Â (i) B gives four to A.(ii) C gives 3 to E. How much did A,B,C,E give to D?
Q: At 6?o a clock ticks 6 times.The time between first and last ticks is 30 seconds.How long does it tick at 12?o clock?2.A hotel has 10 storey. Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth.
Q: There is a room with a door (closed) and three light bulbs. Outside the room there are three switches, connected to the bulbs. You may manipulate the switches as you wish, but once you open the door you can't change them. Identify each switch with its bulb.
Q: A long, long time ago, two Egyptian camel drivers were fighting for the hand of the daughter of the sheik of Abbudzjabbu. The sheik, who liked neither of these men to become the future husband of his daughter, came up with a clever plan: a race would dete
Q: A vessel is full of liquid. From the vessel, 1/3rd of the liquid evaporates on the first day. On the second day 3/4th of the remaining liquid evaporates. What fraction of the volume is present at the end of the second day
Q: There are 7 letters A,B,C,D,E,F,GAll are assigned some numbers from 1,2 to 7.B is in the middle if arranged as per the numbers.A is greater than G same as F is less than C.G comes earlier than E.Which is the fourth letter
Q: Jarius and Kylar are playing the game. If Jarius wins, then he wins twice as many games as Kylar. If Jarius loses, then Kylar wins as the same number of games that Jarius wins. How many do Jarius and Kylar play before this match?
Q: In a Park, N persons stand on the circumference of a circle at distinct points. Each possible pair of persons, not standing next to each other, sings a two-minute song ? one pair immediately after the other. If the total time taken for singing is 28 minutes, what is N?
Q: Raj has a jewel chest containing Rings, Pins and Ear-rings. The chest contains 26 pieces. Raj has 2 and 1/2 times as many rings as pins, and the number of pairs of earrings is 4 less than the number of rings. How many earrings does Raj have?...
Q: Given a collection of points P in the plane , a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P)....
Q: Jack and his wife went to a party where four other married couples were present. Every person shook hands with everyone he or she was not acquainted with. When the handshaking was over, Jack asked everyone, including his own wife, how many hands they shook?