Nisa Industrial Services Senior Field Service Engineer Interview Questions and Answers

Q1. Overlapping intervals question from gfg
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Q2. Full dp concept
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Dynamic Programming (DP) is a method for solving complex problems by breaking them down into simpler subproblems.
• DP is used when a problem can be divided into overlapping subproblems.

• It utilizes memoization or tabulation to store results of subproblems.

• Example: Fibonacci sequence can be computed efficiently using DP.

• Another example is the Knapsack problem, where optimal solutions are built from optimal sub-solutions.
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Q1. Introduce yourself and previous job experience
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I am a seasoned Business Analyst with 5 years of experience in analyzing business processes and implementing solutions.
• Worked as a Business Analyst at XYZ Company for 3 years

• Led a team in implementing a new CRM system which resulted in a 20% increase in sales

• Analyzed data to identify trends and make recommendations for process improvements
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Q2. Challanges faced previously and skillset
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Q1. Basic aptitude interview.
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Q2. Comm skills was checked.
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Q1. Oops concept ,Interface ,wrapper class,
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Q2. Coding Round
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String related questions

Q1. What are your viewpoint on sales
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Sales is about building relationships and providing solutions to customers' needs.
• Sales is not just about pushing products, but understanding the customer's pain points and offering solutions

• It involves building trust and rapport with customers

• Sales requires effective communication and active listening skills

• It is important to have a deep knowledge of the product or service being sold

• Sales is a continuous process of id...read more
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Q2. Ways of promoting the products
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Promoting products can be done through various channels such as advertising, social media, events, and partnerships.
• Advertising through various mediums such as TV, radio, print, and online

• Utilizing social media platforms to reach a wider audience and engage with customers

• Hosting events such as product launches, demos, and workshops to showcase the product and create buzz

• Forming partnerships with complementary brands or...read more
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Q1. Need to develop the Technical skills based upon core filed
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Q1. Personal information and total experience
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Q1. Knowledge and experience
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Q1. Knowledge checking and work related questions
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Q1. Salary negotiation and notice period
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Q1. What is physical security?
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Physical security refers to measures taken to protect physical assets, resources, and personnel from unauthorized access, damage, or harm.
• Includes physical barriers such as fences, locks, and security cameras

• Involves access control systems like key cards or biometric scanners

• May also include security guards or patrols to monitor and protect a physical space

• Examples: installing security cameras in a retail store, using
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Q2. What are the barriers of physical security?
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Physical security barriers include fences, locks, access control systems, and surveillance cameras.
• Fences can prevent unauthorized access to a property.

• Locks on doors and windows can deter intruders.

• Access control systems limit who can enter specific areas.

• Surveillance cameras can monitor and record activities for security purposes.
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Q3. Types of camera
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There are various types of cameras including DSLR, mirrorless, point-and-shoot, action, and instant cameras.
• DSLR cameras have interchangeable lenses and are popular among professional photographers.

• Mirrorless cameras are compact and lightweight, with electronic viewfinders.

• Point-and-shoot cameras are small and easy to use for everyday photography.

• Action cameras are rugged and designed for capturing fast-paced activitie...read more
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Q4. What is ptz camera
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A PTZ camera is a type of security camera that can pan, tilt, and zoom to provide a wider range of coverage and flexibility in monitoring.
• PTZ stands for pan, tilt, zoom

• Can be controlled remotely to adjust viewing angle and zoom level

• Used in surveillance systems for monitoring large areas

• Examples: Hikvision PTZ camera, Axis PTZ camera
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Q5. What is dome camera
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A dome camera is a type of surveillance camera that is housed in a dome-shaped casing, providing a discreet and vandal-resistant design.
• Dome cameras are commonly used for indoor and outdoor security surveillance.

• They are often used in retail stores, banks, casinos, and homes.

• Dome cameras can be fixed or PTZ (pan-tilt-zoom) for flexible monitoring.

• The dome casing helps to protect the camera from tampering and vandalism.
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