Real Time Data Services Interview Questions, Process, and Tips

Math, reasoning, english , 60 question for 90 minutes

Q1. 1 linked list question, reverse the link list
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Q2. Find the loop in link list
Ans. 
To find the loop in a linked list, use Floyd's Cycle Detection Algorithm.
• Use two pointers, slow and fast, to traverse the linked list.

• If there is a loop, the fast pointer will eventually meet the slow pointer.

• Once they meet, move one pointer back to the head and start moving both pointers one node at a time until they meet again. This meeting point is the start of the loop.
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Q1. Database indexing and queries
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The environment mentioned above is not conducive or satisfactory.

I am only inquiring about sales.

Q1. What was your most recent professional experience?
Ans. 
I recently worked as a Marketing Executive for a tech startup, developing and implementing marketing strategies.
• Developed marketing campaigns to increase brand awareness

• Managed social media platforms and analyzed performance metrics

• Collaborated with sales team to generate leads and drive revenue
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Q1. Can you provide details about your internship experience?
Ans. 
I completed a cloud consulting internship where I gained hands-on experience in cloud architecture and client solutions.
• Worked on a project to migrate a client's on-premises infrastructure to AWS, improving scalability and reducing costs.

• Collaborated with a team to design a cloud-native application using microservices architecture, enhancing performance and reliability.

• Conducted cost analysis for cloud services, helpin...read more
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Q2. What are some techniques related to data security?
Ans. 
Data security techniques protect sensitive information from unauthorized access and breaches.
• Encryption: Transforming data into a coded format to prevent unauthorized access (e.g., AES, RSA).

• Access Control: Implementing user permissions to restrict data access (e.g., Role-Based Access Control).

• Data Masking: Obscuring specific data within a database to protect it (e.g., showing only the last four digits of a credit card...read more
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2 dsa medium level question area asked, 2 sql questions and 20 aptitude questions

Q1. Project discussion
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Q2. Javascript, mongo db ,react
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Q3. No dsa question is asked
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Q4. Sql query on joins and group by
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