Fldec Systems Sr.Assistant HR / HR Executive Interview Questions and Answers

Quantitative aptitude with general and technical questions

Q1. Questions on electronics
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Q1. General discussions like self introduction, shift and hobbies
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Q1. What is operating frequency of USB Type C?
Ans. 
The operating frequency of USB Type C is 10 Gbps.
• USB Type C has a maximum data transfer rate of 10 Gbps

• It is also backward compatible with USB 2.0 and 3.0

• The frequency can vary depending on the device and cable used
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Q2. What is the minimum clearance for DDR Data group signals Routing?
Ans. 
The minimum clearance for DDR Data group signals Routing is 6 mils.
• DDR Data group signals Routing requires a minimum clearance of 6 mils to avoid crosstalk and interference.

• The clearance may vary depending on the specific DDR standard being used.

• It is important to follow the recommended guidelines provided by the DDR manufacturer.

• Failure to meet the minimum clearance requirements can result in signal integrity issues a...read more
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Q3. How can you define micro vias in PCB board?
Ans. 
Micro vias are small holes drilled in PCBs to connect different layers of the board.
• Micro vias are typically less than 0.15mm in diameter.

• They are used to save space on the board and increase routing density.

• Micro vias can be drilled using lasers or mechanical drills.

• They are commonly used in high-density interconnect (HDI) PCBs.

• Micro vias can be filled with conductive or non-conductive materials.

• They can be blind vias...read more
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Q4. What type of signals available in DDR
Ans. 
DDR signals include command, address, data, clock, and control signals.
• DDR stands for Double Data Rate, which means data is transferred twice per clock cycle.

• Command signals are used to initiate operations like read, write, and refresh.

• Address signals specify the location of data in memory.

• Data signals carry the actual data being transferred.

• Clock signals synchronize the timing of all the signals.

• Control signals includ...read more
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Q5. What is operating frequency of DDR 4
Ans. 
The operating frequency of DDR4 is 2133 MHz to 4266 MHz.
• DDR4 operates at higher frequencies than its predecessor DDR3

• The operating frequency of DDR4 depends on the specific module and its configuration

• DDR4 can operate at frequencies ranging from 2133 MHz to 4266 MHz

• Higher frequency modules tend to be more expensive
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Q6. What is Open Drain and Open Source
Ans. 
Open drain is a type of output circuitry used in digital electronics. Open source refers to software that is freely available to use and modify.
• Open drain is a type of output circuitry where the output transistor is connected to ground instead of a voltage source.

• Open drain outputs are commonly used in digital circuits to interface with other devices or circuits.

• Open source refers to software that is freely available t...read more
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Q7. What is Fine pitch BGA
Ans. 
Fine pitch BGA refers to a Ball Grid Array (BGA) package with a small distance between the center of one ball to the center of the next ball.
• Fine pitch BGA has a pitch of less than 1.0 mm.

• It is commonly used in high-density applications such as microprocessors, memory chips, and graphics processors.

• Fine pitch BGA requires precise manufacturing techniques and careful handling during assembly and rework.

• Examples of fine ...read more
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Q8. What type of PCie connector used in your project
Ans. 
We used PCIe Gen3 x16 connector in our project.
• PCIe Gen3 x16 connector provides high-speed data transfer.

• It has 16 lanes for data transmission.

• It is commonly used in high-performance graphics cards and storage devices.

• It has a maximum bandwidth of 32 GB/s.

• Examples of devices that use PCIe Gen3 x16 connector are NVIDIA GeForce GTX 1080 Ti and Samsung 970 PRO SSD.
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Basic arithmetic aptitude and electronics based questions

Q1. Based on the projects that we have worked
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Written test on basics of all subjects technical

Q1. F2F interview on basics of all subjects
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Aptitude round consists Logical reasoning, General Aptitude, Grammar related questions etc. All are moderate level questions.

Q1. Explain OOPs w.r.t Java
Ans. 
OOPs is a programming paradigm that uses objects to represent real-world entities. Java is an OOPs language.
• OOPs stands for Object-Oriented Programming System

• Java is a class-based OOPs language

• Encapsulation, Inheritance, Polymorphism, and Abstraction are the four pillars of OOPs

• Objects have state and behavior

• Java supports interfaces, which allow for multiple inheritance

• Example: A car can be represented as an object wit...read more
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Q2. Explain about the projects that you have worked on
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Q3. Explain how Java solves machine dependency of code execution
Ans. 
Java solves machine dependency by using bytecode and virtual machine.
• Java code is compiled into bytecode which is platform-independent

• The bytecode is executed by the Java Virtual Machine (JVM) which is platform-specific

• JVM translates bytecode into machine code for the specific platform

• This allows Java code to run on any platform with a JVM installed

• Example: A Java program compiled on Windows can run on Linux or Mac as
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Q1. Why should we hire you?
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Q2. Tell me about yourself.
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