Huawei Technologies Production Graduate Engineer Trainee Interview Questions and Answers

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Q1. Describe about linux
Ans. 
Linux is an open-source operating system based on Unix, known for its stability, security, and flexibility.
• Linux is free and open-source, meaning anyone can modify and distribute it.

• It is based on Unix, which is known for its stability and security.

• Linux is highly customizable and can be used on a wide range of devices, from servers to smartphones.

• Popular distributions of Linux include Ubuntu, Fedora, and CentOS.
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Q2. OOPs fundamentals
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Q3. CS FUNDAMENTALS
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Q4. Java coding for heap sort
Ans. 
Heap sort is a comparison-based sorting algorithm that uses a binary heap data structure.
• Create a max heap from the input array

• Swap the root node with the last node and heapify the remaining nodes

• Repeat the process until the heap is empty
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Q5. Projects discussion
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Q1. 1. What is wireless communication?
Ans. 
Wireless communication refers to the transmission of information without the use of physical connections or wires.
• Wireless communication allows devices to communicate with each other over a distance using electromagnetic waves.

• It enables the transfer of data, voice, and video signals wirelessly.

• Examples of wireless communication technologies include Wi-Fi, Bluetooth, cellular networks, satellite communication, and radi
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Q2. 1. What is Telecommunication?
Ans. 
Telecommunication is the transmission of information over a distance using electronic means.
• Telecommunication involves the exchange of information between two or more parties.

• It uses various technologies such as telephones, radios, television, and the internet.

• Telecommunication enables real-time communication, allowing people to connect and communicate regardless of their physical location.

• Examples of telecommunication...read more
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Q3. What are the types of modulations?
Ans. 
Modulation is the process of varying a carrier signal in order to transmit information.
• Amplitude Modulation (AM) - varying the amplitude of the carrier signal

• Frequency Modulation (FM) - varying the frequency of the carrier signal

• Phase Modulation (PM) - varying the phase of the carrier signal

• Quadrature Amplitude Modulation (QAM) - combining amplitude and phase modulation

• Pulse Amplitude Modulation (PAM) - varying the amp...read more
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Q4. What is the difference between 2G, 3G, 4G? Why 5G?
Ans. 
2G, 3G, 4G, and 5G are different generations of mobile network technology.
• 2G refers to second-generation mobile networks that primarily provided voice and text messaging services.

• 3G introduced faster data transfer speeds, enabling internet browsing, video calling, and multimedia services.

• 4G further improved data speeds, offering high-quality video streaming, online gaming, and advanced mobile applications.

• 5G is the fif...read more
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Q5. Questions regarding my projects which were based on radar.
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Q6. How to remove elements from list?
Ans. 
To remove elements from a list, use the remove() method or list comprehension.
• Use the remove() method to remove a specific element from the list.

• Use list comprehension to remove multiple elements based on a condition.

• Example: myList.remove('element') or myList = [x for x in myList if x != 'element']
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Basic aptitude questions

Q1. Difference between queue and stack
Ans. 
A queue is a data structure that follows the FIFO (First-In-First-Out) principle, while a stack follows the LIFO (Last-In-First-Out) principle.
• Queue: Elements are added at the rear and removed from the front.

• Stack: Elements are added and removed from the top.

• Queue is like a line of people waiting for a bus, while a stack is like a stack of plates.

• Queue is used in breadth-first search algorithms, while stack is used in
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Q2. Questions based on sql queries
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This is the basic round there is the question ask from aptitude and general english

Q1. In this basic question ask from the communication system and data communication
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Basic Maths , General aptitude for placements

Q1. Questions based on resume
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Q2. Digital Circuits , how do they work ?
Ans. 
Digital circuits are electronic circuits that operate using digital signals (0s and 1s) to perform logical operations.
• Digital circuits use logic gates to process binary information.

• They can perform operations such as AND, OR, NOT, and XOR.

• These circuits are the building blocks of computers and other digital devices.

• Examples of digital circuits include flip-flops, registers, and arithmetic logic units.
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Q3. How do Logic gates work ?
Ans. 
Logic gates are electronic devices that perform logical operations based on input signals.
• Logic gates take input signals and produce an output signal based on a specific logic function.

• They can perform operations such as AND, OR, NOT, NAND, NOR, XOR, and XNOR.

• For example, an AND gate outputs a high signal only when both input signals are high.

• A NOT gate inverts the input signal, producing a high output when the input i...read more
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Good Experience, Feel very Happy for Round1 Qualified

Q1. Tell me about your self What is List and Tuple What is Generation
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It was a normal-level aptitude test

The interviewer asked basic questions regarding oops concept

Q1. Normal HR questions like where I was from, what is my aim,
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Q2. Where do i see myself in the upcoming years
Ans. 
In the upcoming years, I see myself growing as a skilled engineer, taking on more responsibilities, and contributing to the success of the organization.
• Continuing to learn and develop my technical skills

• Taking on leadership roles and managing projects

• Contributing innovative ideas and solutions to improve processes

• Building strong relationships with colleagues and mentors

• Seeking opportunities for professional growth and
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1 hour cding test without compiler

Q1. Linked List questions and and oops
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Q1. Basic question about background asking about interest in different technical fields
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