Oracle Interview Questions, Process, and Tips

Questions were easy to moderate level from leetcode

Q1. I didn't get selected, but if you clear the 1st round coding and aptitude aswell then you will be allowed to this round, some 25 to 30 were selected and 6 were given offer letter.focus on coding aswell as ...read more
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Design an circular linked list

Went through the previous projects and asked some design question

Q1. FInd the range of available IP addres based in the input IP and subnet
Ans. 
Calculate the range of available IP addresses based on input IP and subnet.
• Determine the network address and broadcast address using the input IP and subnet mask.

• Calculate the range of available IP addresses between the network address and broadcast address.

• Exclude the network address and broadcast address from the range of available IP addresses.
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Q1. Tell me about yourself?
Ans. 
I am a seasoned Cloud Solution Designer with a strong background in designing and implementing cloud solutions for various industries.
• Over 10 years of experience in cloud architecture and design

• Proficient in AWS, Azure, and Google Cloud Platform

• Strong understanding of DevOps practices and CI/CD pipelines

• Proven track record of successfully delivering scalable and secure cloud solutions

• Excellent communication and collabo
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Q2. Questions on my resume?
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Q1. What does errors in 4xx format usually mean?
Ans. 
Errors in 4xx format usually indicate client-side errors.
• 4xx errors are typically caused by the client sending a request that is incorrect or cannot be fulfilled.

• Examples include 400 Bad Request, 401 Unauthorized, 403 Forbidden, and 404 Not Found.

• These errors are different from 5xx errors which indicate server-side issues.
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Q2. A DNS infrastructure is being bombarded with requests. How will you remediate/reduce it's impact?
Ans. 
Implement rate limiting, increase capacity, use caching, and implement security measures.
• Implement rate limiting to restrict the number of requests per client or IP address.

• Increase the capacity of the DNS infrastructure by adding more servers or upgrading existing ones.

• Use caching to store frequently accessed DNS records and reduce the load on the infrastructure.

• Implement security measures such as firewall rules to bl...read more
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Q3. How will you reduce the impact of authentication requests being sent to your authentication platform?
Ans. 
Implementing caching mechanisms and optimizing authentication processes can help reduce the impact of authentication requests on the authentication platform.
• Implement caching mechanisms to store authentication tokens locally and reduce the need for frequent requests to the authentication platform.

• Optimize authentication processes by using efficient algorithms and data structures to quickly verify user credentials.

• Imple...read more
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Q4. What will be your design consideration for a highly available application?
Ans. 
Design considerations for a highly available application include redundancy, fault tolerance, load balancing, and disaster recovery.
• Implementing redundancy in critical components to ensure continuous operation

• Utilizing fault-tolerant architecture to handle failures without impacting availability

• Implementing load balancing to distribute traffic evenly across multiple servers

• Setting up disaster recovery mechanisms to qui
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Q1. Array related question from neetcode 150
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Q1. Manager was asking some puzzle.
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Q1. SQL question around First_value
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