Ignitarium Technology Solutions Intern Interview Questions and Answers

Basics of electrical and Electronics

Q1. Basics electronic circuit
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C++,DSA,OOPs Concept

Q1. Virtual function inheritance Tree Graph STL
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Q2. Virtual Function
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Q3. Unordered Map Map Multimap
Ans. 
Unordered Map is a container that stores key-value pairs with unique keys. Map is a container that stores key-value pairs with unique keys. Multimap is a container that stores key-value pairs with duplicate keys.
• Unordered Map does not maintain any particular order of elements.

• Map maintains the order of elements based on the key's comparison function.

• Multimap allows duplicate keys and stores them in sorted order.
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Q4. Polymorphism runtime
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Q1. Smart Pointer Function pointer Operator overloading
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Q1. Questions based on digital design verilog, sv, SVA, Linting, etc were asked
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Q1. Technical question asked
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Q2. Technology related studies
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Q1. Presentation given in technical topic
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Q1. What is Cyber Security?
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Q2. How Cyber Security play major role ?
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Cybersecurity is essential for protecting sensitive data and maintaining trust in digital systems across various sectors.
• Protects sensitive information: Cybersecurity safeguards personal and financial data from breaches, like the Equifax data breach in 2017.

• Ensures business continuity: Effective cybersecurity measures prevent downtime caused by cyberattacks, such as ransomware incidents.

• Builds customer trust: Companies...read more
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Based on talent retention

Q1. Questions About self and motivations
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Q2. Questions on how to go on to solve the case study
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Basic EE, Aptitude and reasoning Questions. Focused on Analog and Digital

Q1. Solving a RC network circuit which further evolved into more complex network
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Q2. Explain the Projects on resume
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Developed a web application for managing tasks and improving team collaboration using React and Node.js.
• Utilized React for building a dynamic user interface, enhancing user experience.

• Implemented Node.js for backend services, ensuring efficient data handling.

• Integrated RESTful APIs to connect frontend and backend seamlessly.

• Conducted user testing sessions to gather feedback and improve functionality.

• Deployed the applic...read more
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60 mins test which comprises of 2 sections, Technical and aptitude. Both sections have a time limit of 30 mins. The technical questions were easy to medium and i could finish it in time but i needed more time for finishing the aptitude, a total 40 questions.

Q1. Tell me about yourself
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for coding and problem-solving.
• Recent graduate with a degree in Computer Science

• Passionate about coding and problem-solving

• Experience with programming languages like Java, Python, and C++

• Completed internships at tech companies such as Google and Microsoft
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Q2. Find the voltage through the resistor
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To find the voltage through a resistor, use Ohm's Law: V = I * R
• Use Ohm's Law: V = I * R, where V is the voltage, I is the current flowing through the resistor, and R is the resistance of the resistor

• If the current flowing through the resistor is 2A and the resistance is 5 ohms, the voltage would be V = 2 * 5 = 10V

• Make sure to use the correct units for current (Amps) and resistance (Ohms) to get the voltage in Volts
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Q3. The interviewer just kept on adding an extra resistor in parallel and in series to the resistor and asked me to find the voltage
Ans. 
Understanding voltage in circuits with resistors in series and parallel configurations.
• In series, total resistance (R_total) = R1 + R2 + ... + Rn. Example: R1=2Ω, R2=3Ω, R_total=5Ω.

• In parallel, total resistance (R_total) = 1 / (1/R1 + 1/R2 + ... + 1/Rn). Example: R1=2Ω, R2=3Ω, R_total=1.2Ω.

• Voltage across resistors in series is divided: V_total = V1 + V2 + ... + Vn.

• Voltage across resistors in parallel is the same: V_tot...read more
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Q4. He then asked a question on transient analysis ie 2 capacitors connected in series with a switch which closes at t>0 with the voltage across the 2 capacitors being 3 v and asked to find the total voltge
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Transient analysis of capacitors in series with a switch closing at t>0 and initial voltage of 3V.
• Capacitors in series share the same charge but have different voltages across them.

• The total voltage across capacitors in series is the sum of individual voltages.

• If two capacitors, C1 and C2, are in series, V_total = V1 + V2.

• For example, if C1 has 2V and C2 has 1V, then V_total = 2V + 1V = 3V.

• When the switch closes at ...read more
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Q5. Explain the working of a capacitor and resistor and relation between resistance and length , area
Ans. 
Capacitors store electrical energy while resistors limit the flow of current. Resistance is directly proportional to length and inversely proportional to area.
• Capacitors store electrical energy by creating an electric field between two conductive plates separated by an insulating material

• Resistors limit the flow of current in a circuit by dissipating energy in the form of heat

• The resistance of a resistor is directly pr...read more
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