OPPO Software Trainee Intern Interview Questions and Answers

Tell about AC industry

Q1. Move zeros to end?
Ans. 
Move all zeros in an array of strings to the end while maintaining the order of non-zero elements.
• Iterate through the array and move all zeros to the end while keeping the order of non-zero elements.

• Use two pointers approach to swap elements in-place.

• Example: Input: ['a', 'b', 'c', '0', 'd', '0'], Output: ['a', 'b', 'c', 'd', '0', '0']
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Q2. WHat are AWS services?
Ans. 
AWS services are cloud computing services provided by Amazon Web Services.
• Compute services (e.g. EC2, Lambda)

• Storage services (e.g. S3, EBS)

• Database services (e.g. RDS, DynamoDB)

• Networking services (e.g. VPC, Route 53)

• Machine learning services (e.g. SageMaker)

• Analytics services (e.g. Redshift, Athena)
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Q3. What is dynamodb?
Ans. 
DynamoDB is a fully managed NoSQL database service provided by AWS.
• Fully managed NoSQL database service

• Scalable and high-performance

• Supports key-value and document data models

• Automatically replicates data across multiple Availability Zones for high availability
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Q1. How good are you at stress handling situations?
Ans. 
I am very good at handling stress situations, remaining calm and focused under pressure.
• I have experience working on high-pressure projects with tight deadlines.

• I am able to prioritize tasks effectively and stay organized during stressful situations.

• I have developed strong problem-solving skills that help me navigate stressful scenarios.

• I am able to communicate effectively with team members and stakeholders to manage s...read more
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Q2. Why daikin eloaborate this?
Ans. 
Daikin may elaborate on a topic to provide more detailed information or explanation.
• To provide a better understanding of a complex concept or product

• To address potential questions or concerns from customers

• To showcase the company's expertise and knowledge in the industry
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Q1. What is broadcast receiver
Ans. 
Broadcast receiver is a component in Android that allows the system to deliver events to the app.
• Component in Android system

• Receives and handles broadcast messages

• Used to respond to system-wide events

• Registered in the AndroidManifest.xml file
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Q2. What is intent service
Ans. 
IntentService is a class in Android that performs long-running operations in the background without blocking the main thread.
• IntentService is a subclass of Service that handles asynchronous requests (expressed as Intents) on demand.

• It is typically used for tasks like downloading files, syncing data, or performing any other background task.

• IntentService runs on a separate worker thread, so it does not interfere with the...read more
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Q1. Why do you want to join
Ans. 
I am passionate about developing innovative software solutions and believe this company aligns with my career goals.
• Excited about the opportunity to work on cutting-edge technologies

• Impressed by the company's reputation for fostering a collaborative work environment

• Seeking a challenging role that allows for professional growth and development
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Q2. What is your highest qualification
Ans. 
Master's degree in Computer Science
• Master's degree in Computer Science

• Specialization in software engineering

• Thesis on machine learning algorithms

• Graduated with honors
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Q1. Python and sql questions
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Q1. Client interview
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Q1. General discussion
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Q1. Set a bit, make function pointers, etc
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Q2. Deadlock,rtos, ipc, etc
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Q1. What is your weakness
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Q2. What is pn junction diode
Ans. 
A pn junction diode is a semiconductor device that allows current to flow in one direction only.
• Consists of p-type and n-type semiconductor materials

• When forward biased, allows current to flow easily

• When reverse biased, blocks current flow
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Q1. Why to join WD?
Ans. 
WD offers exciting opportunities for growth and innovation in the software engineering field.
• Opportunity to work on cutting-edge technologies

• Collaborative and supportive work environment

• Career development and growth opportunities

• Strong company culture and values

• Global presence and diverse projects
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Q2. Detect loop in linked list
Ans. 
Use Floyd's Tortoise and Hare algorithm to detect loop in linked list.
• Initialize two pointers, slow and fast, at the head of the linked list.

• Move slow pointer by one step and fast pointer by two steps.

• If they meet at any point, there is a loop in the linked list.
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Q3. What are different product of WD?
Ans. 
WD offers a variety of products including external hard drives, internal hard drives, SSDs, and network attached storage devices.
• External hard drives

• Internal hard drives

• SSDs

• Network attached storage devices
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Q4. Do you want to ask any questions?
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There was a coding round on techgig which i cleared

Q1. I was invited to the technical round which was also online
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Q2. I could not attend the online technical round
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Q3. 2 questions on dsa
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Two Sum and 3 Sum in Leetcode

Q1. System design for a load balancer
Ans. 
A load balancer distributes incoming network traffic across multiple servers to ensure optimal resource utilization and prevent overload.
• Identify the requirements for the load balancer (e.g. traffic volume, server capacity)

• Choose a load balancing algorithm (e.g. round-robin, least connections)

• Implement health checks to monitor server status and remove unhealthy servers from rotation

• Consider scalability and redundancy f...read more
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