Qolsys Interview Questions and Answers

Q1. Tell me about self,,, what is your last organization role,why join company etc
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Q1. Oops concept ,Interface ,wrapper class,
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Q2. Coding Round
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String related questions

Standard DSA problems

Q1. Java questions, DBs
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Q1. Culture fit for startup
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Culture fit for a startup is crucial for success.
• Startup culture is often fast-paced and dynamic.

• Employees need to be adaptable and willing to take on multiple roles.

• Collaboration and teamwork are highly valued.

• Innovation and creativity are encouraged.

• Open communication and transparency are important.

• A strong work ethic and dedication are necessary.

• Risk-taking and learning from failures are embraced.

• Passion and drive f
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Q1. Leadership qualities in the current role
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Demonstrated leadership qualities in current role
• Led a team of 5 developers to successfully complete a project ahead of schedule

• Took initiative to organize weekly team meetings to discuss progress and address any challenges

• Mentored junior team members, providing guidance and support to help them improve their skills

• Collaborated with cross-functional teams to ensure smooth coordination and effective communication

• Took ow...read more
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Q1. Find the middle element whose left and right sum is equal
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Iterate through array to find middle element with equal left and right sum
• Iterate through array and calculate sum of elements on left and right of each element

• Return element if left sum equals right sum

• Handle edge cases like array with less than 3 elements
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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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Q1. Basic oops concept
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Was very basic. Asked few question about ratio proportion, time, directions and relation based.

Was given a topic to talk about. Global warming was the topic. Quite easy and cleared it.

Basic questions on maths related parts and analysis skills

Coding questions from various Data Structure parts like linkedList stack queue

Reasing time profit30min

Dsa sql excel vlookup 30min