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Oracle Interview Questions, Process, and Tips

Updated 5 Mar 2025

Top Oracle Interview Questions and Answers

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847 interviews found

I applied via Approached by Company and was interviewed in Sep 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
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Round 2 - Technical 

(12 Questions)

  • Q1. 1. Write a program to remove duplicate elements from String and mention the count of duplication.
  • Ans. 

    Program to remove duplicate elements from String and count their occurrences.

    • Create a HashSet to store unique characters from the String.

    • Iterate through the String and add each character to the HashSet.

    • While adding, check if the character already exists in the HashSet and increment its count.

    • Print the count of each character that has duplicates.

    • Return the modified String with duplicates removed.

  • Answered by AI
  • Q2. 2. Write a program to capitalise all the first letter of a word in a sentence.
  • Ans. 

    A program to capitalize the first letter of each word in a sentence.

    • Split the sentence into words

    • Loop through each word and capitalize the first letter

    • Join the words back into a sentence

  • Answered by AI
  • Q3. 3. How map works internally in Java
  • Ans. 

    Java Map is an interface that maps unique keys to values. It works internally using hash table data structure.

    • Map interface is implemented by HashMap, TreeMap, LinkedHashMap, etc.

    • Keys in a map must be unique and values can be duplicated.

    • Hash table data structure is used to store key-value pairs internally.

    • Hashing is used to convert keys into indices of an array where values are stored.

    • Collision resolution techniques li...

  • Answered by AI
  • Q4. 4. When to use list and when to use linked list.
  • Ans. 

    Lists are used for small collections, linked lists for large or frequently modified collections.

    • Use lists for small collections that don't require frequent modifications.

    • Use linked lists for large collections or collections that require frequent modifications.

    • Linked lists are better for inserting or deleting elements in the middle of the collection.

    • Lists are better for accessing elements by index.

    • Example: Use a list to...

  • Answered by AI
  • Q5. 5. Difference between primitives and wrapper class in Java.
  • Ans. 

    Primitives are basic data types in Java while wrapper classes are objects that wrap around primitives.

    • Primitives are faster and take less memory than wrapper classes.

    • Wrapper classes provide additional functionality like conversion to and from strings.

    • Primitives are passed by value while wrapper classes are passed by reference.

    • Examples of primitives include int, boolean, and double while examples of wrapper classes incl

  • Answered by AI
  • Q6. 6. Explain JVM architecture.
  • Ans. 

    JVM is an abstract machine that executes Java bytecode. It consists of class loader, runtime data area, and execution engine.

    • JVM stands for Java Virtual Machine.

    • It is responsible for executing Java bytecode.

    • JVM architecture consists of class loader, runtime data area, and execution engine.

    • Class loader loads the class files into the memory.

    • Runtime data area is divided into method area, heap, and stack.

    • Execution engine e...

  • Answered by AI
  • Q7. 7. Why String is immutable
  • Ans. 

    String is immutable because it cannot be changed once created.

    • Immutable objects are safer to use in multi-threaded environments.

    • String pool in Java is possible because of immutability.

    • StringBuffer and StringBuilder are mutable alternatives to String.

  • Answered by AI
  • Q8. 8. Different Java 8 features.
  • Ans. 

    Java 8 introduced several new features including lambda expressions, streams, and default methods.

    • Lambda expressions allow for functional programming and simplify code.

    • Streams provide a way to process collections of data in a functional way.

    • Default methods allow for adding new methods to interfaces without breaking existing implementations.

    • Other features include the Optional class, Date and Time API, and Nashorn JavaSc...

  • Answered by AI
  • Q9. 9. Types of functional interface.
  • Ans. 

    Functional interfaces are interfaces with only one abstract method. There are four types of functional interfaces.

    • Consumer: accepts a single argument and returns no result. Example: Consumer

    • Supplier: takes no argument and returns a result. Example: Supplier

    • Predicate: takes a single argument and returns a boolean. Example: Predicate

    • Function: takes a single argument and returns a result. Example: Function

  • Answered by AI
  • Q10. 10. Write a program to separate even and odd numbers using Java 8.
  • Ans. 

    Program to separate even and odd numbers using Java 8.

    • Use Java 8 Stream API to filter even and odd numbers

    • Create two separate lists for even and odd numbers

    • Use lambda expressions to filter the numbers

    • Example: List evenNumbers = numbers.stream().filter(n -> n % 2 == 0).collect(Collectors.toList());

    • Example: List oddNumbers = numbers.stream().filter(n -> n % 2 != 0).collect(Collectors.toList());

  • Answered by AI
  • Q11. 11. Different types of spring boot annotations.
  • Ans. 

    Spring Boot annotations are used to simplify the development process. Some common annotations are @SpringBootApplication, @RestController, @Autowired, @GetMapping, @PostMapping, @Service, @Repository, @Component, etc.

    • The @SpringBootApplication annotation is used to mark the main class of the application.

    • The @RestController annotation is used to mark a class as a RESTful controller.

    • The @Autowired annotation is used to i...

  • Answered by AI
  • Q12. 12. Question related to inner queries in SQL.
Round 3 - Technical 

(11 Questions)

  • Q1. 1. Difference between String and String Buffer.
  • Ans. 

    String is immutable while StringBuffer is mutable.

    • String objects are constant and cannot be changed once created.

    • StringBuffer objects are mutable and can be modified.

    • StringBuffer is thread-safe while String is not.

    • StringBuffer has methods to append, insert, and delete while String does not.

    • Example: String str = "hello"; StringBuffer sb = new StringBuffer("world");

    • str.concat("world"); // returns a new string "helloworld...

  • Answered by AI
  • Q2. 2. Difference between String Buffer and String Builder
  • Ans. 

    String Buffer and String Builder are both used to manipulate strings, but the former is synchronized while the latter is not.

    • String Buffer is thread-safe while String Builder is not

    • String Builder is faster than String Buffer

    • String Builder is preferred when thread safety is not a concern

    • String Buffer is used when multiple threads are involved in manipulating the same string

    • Both classes have similar methods for appending

  • Answered by AI
  • Q3. 3. How to remove sensitive information from serializable interface.
  • Ans. 

    Sensitive information can be removed from serializable interface by implementing custom serialization.

    • Create a custom serialization method that excludes sensitive information.

    • Use the transient keyword to mark sensitive fields as non-serializable.

    • Consider using encryption or hashing to protect sensitive data.

    • Test serialization and deserialization to ensure sensitive information is not included.

    • Examples: exclude password...

  • Answered by AI
  • Q4. 4. What is marker interface? Example of marker interface. Why it is used.
  • Ans. 

    Marker interface is an interface with no methods. It is used to mark a class for special treatment.

    • Marker interface is used to provide metadata to the JVM.

    • It is used to indicate that a class has some special behavior or characteristics.

    • Example: Serializable interface in Java.

    • Marker interfaces are used for reflection and serialization.

    • They are also used in frameworks like Spring and Hibernate.

    • Marker interfaces are also ...

  • Answered by AI
  • Q5. 5. Difference type of HTTP request in Spring Boot.
  • Ans. 

    There are four types of HTTP requests in Spring Boot: GET, POST, PUT, and DELETE.

    • GET: used to retrieve data from a server

    • POST: used to submit data to a server

    • PUT: used to update existing data on a server

    • DELETE: used to delete data from a server

    • These requests are handled by the @RequestMapping annotation in Spring Boot

  • Answered by AI
  • Q6. 6. Spring MVC architecture
  • Q7. 7. Uses of Factory Design Pattern
  • Ans. 

    Factory Design Pattern is used to create objects without exposing the creation logic to the client.

    • It provides a way to delegate the object creation to a factory class.

    • It helps in achieving loose coupling between classes.

    • It is useful when we have a super class with multiple sub-classes and based on input, we need to return one of the sub-class.

    • Examples include: java.util.Calendar, java.text.NumberFormat, java.nio.chars

  • Answered by AI
  • Q8. 8. Different type of HTTP response code.
  • Ans. 

    HTTP response codes indicate the status of a web request. There are 5 categories of codes.

    • 1xx - Informational

    • 2xx - Success

    • 3xx - Redirection

    • 4xx - Client Error

    • 5xx - Server Error

  • Answered by AI
  • Q9. 9. Difference between @Service and @Component.
  • Ans. 

    Difference between @Service and @Component

    • Both are used for component scanning in Spring

    • @Service is used for service layer classes

    • @Component is used for general purpose beans

    • Service layer classes contain business logic

    • Examples of @Service: UserService, ProductService

    • Examples of @Component: DAO, Utility classes

  • Answered by AI
  • Q10. 10. Remove the duplicate elements in an array.
  • Ans. 

    Remove duplicate elements in an array.

    • Create a new empty array.

    • Loop through the original array and check if the element already exists in the new array.

    • If it doesn't exist, add it to the new array.

    • Return the new array without duplicates.

  • Answered by AI
  • Q11. 11. SQL queries related to joins.
Round 4 - Domain Interview 

(6 Questions)

  • Q1. 1. What are the different layers of OSI model.
  • Ans. 

    The OSI model has 7 layers that define how data is transmitted over a network.

    • Layer 1: Physical layer - deals with the physical aspects of transmitting data

    • Layer 2: Data link layer - responsible for error-free transfer of data between nodes

    • Layer 3: Network layer - handles routing of data between different networks

    • Layer 4: Transport layer - ensures reliable delivery of data between applications

    • Layer 5: Session layer - e...

  • Answered by AI
  • Q2. 2. What are different layers of TCP/IP model.
  • Ans. 

    TCP/IP model has four layers: Application, Transport, Internet, and Network Access.

    • Application layer handles high-level protocols like HTTP, FTP, SMTP, etc.

    • Transport layer provides end-to-end communication between hosts using TCP or UDP protocols.

    • Internet layer handles the routing of data packets between networks using IP protocol.

    • Network Access layer deals with the physical transmission of data over the network.

    • Exampl...

  • Answered by AI
  • Q3. 3. Difference between TCP, UDP and TLS protocol.
  • Ans. 

    TCP is a reliable, connection-oriented protocol. UDP is a connectionless protocol. TLS is a secure protocol for data encryption.

    • TCP ensures reliable data transmission by establishing a connection between sender and receiver.

    • UDP is faster but less reliable as it does not establish a connection before sending data.

    • TLS provides secure communication by encrypting data and verifying the identity of the communicating parties...

  • Answered by AI
  • Q4. 4. Explain SIP signalling.
  • Ans. 

    SIP signalling is a protocol used for initiating, modifying, and terminating real-time sessions that involve video, voice, messaging, and other communications applications.

    • SIP stands for Session Initiation Protocol.

    • It is used to establish, modify, and terminate multimedia sessions.

    • SIP signalling is used in VoIP (Voice over Internet Protocol) and other real-time communication applications.

    • It uses a request-response mode...

  • Answered by AI
  • Q5. 5. Explain the process of data communication using TCP/IP model.
  • Ans. 

    TCP/IP model is a protocol used for data communication. It consists of four layers: application, transport, internet, and network access.

    • Data is sent from the application layer to the transport layer where it is divided into segments.

    • The internet layer adds IP addresses to the segments and sends them to the network access layer.

    • The network access layer adds physical addresses and sends the data over the network.

    • The pro...

  • Answered by AI
  • Q6. 6. Consider an array of String, remove those string from array whose length is less than 3.
  • Ans. 

    Remove strings from an array whose length is less than 3.

    • Loop through the array and check the length of each string.

    • If the length is less than 3, remove that string from the array.

    • Use a for loop or filter method to remove the strings.

    • Example: ['cat', 'dog', 'bird', 'elephant'] -> ['cat', 'dog', 'bird', 'elephant']

    • Example: ['a', 'to', 'the', 'in'] -> ['the', 'in']

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Oracle Associate Consultant interview:
  • Java
  • Spring Boot
  • REST API
  • JPA
Interview preparation tips for other job seekers - 1. Focus more on coding questions as question may differ.
2. Be confident on Java 8 features.

Skills evaluated in this interview

Top Oracle Associate Consultant Interview Questions and Answers

Q1. 1. Write a program to remove duplicate elements from String and mention the count of duplication.
View answer (4)

Associate Consultant Interview Questions asked at other Companies

Q1. There are 2 cricket teams, A and B, with 11 players each. If every player of team A shakes hands with every player of team B(once), what will be the total number of handshakes?
View answer (15)
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I was interviewed in Jan 2025.

Round 1 - Aptitude Test 

Numerical reasoning : Tests mathematical skills,such as number sequences,percentages,and ratios.

Round 2 - Technical 

(6 Questions)

  • Q1. What is the difference between static and dynamic typing in python?
  • Ans. 

    Static typing requires variable types to be declared at compile time, while dynamic typing allows types to be determined at runtime.

    • Static typing requires explicit declaration of variable types, while dynamic typing infers types at runtime.

    • Static typing helps catch errors at compile time, while dynamic typing may lead to runtime errors.

    • Python is dynamically typed, but can be used with type hints for static type checkin...

  • Answered by AI
  • Q2. What is the difference between list and touple in python?
  • Ans. 

    Lists are mutable, ordered collections of items, while tuples are immutable, ordered collections of items.

    • Lists are defined using square brackets [], while tuples are defined using parentheses ().

    • Lists can be modified after creation (mutable), while tuples cannot be modified (immutable).

    • Lists are typically used for collections of similar items that may need to be changed, while tuples are used for fixed collections of ...

  • Answered by AI
  • Q3. Data structures and algorithms
  • Q4. Object oriented programming
  • Q5. File handling and database
  • Q6. Advanced python topics
Round 3 - Group Discussion 

Gd Topics:
1.Current affairs
2.Business and Economy
3.Social and Cultural

Round 4 - HR 

(6 Questions)

  • Q1. CN you tell me about your self?
  • Ans. 

    I am a passionate Python developer with experience in web development and data analysis.

    • Experienced in Python programming language

    • Proficient in web development using Django framework

    • Skilled in data analysis with libraries like Pandas and NumPy

  • Answered by AI
  • Q2. Why do you want to work as a python developer?
  • Ans. 

    I am passionate about coding and enjoy problem-solving using Python.

    • I have a strong interest in programming and have been learning Python for a while.

    • I find Python to be a versatile and powerful language that can be used in various applications.

    • I enjoy the challenge of writing efficient and clean code to solve complex problems.

    • I believe working as a Python developer will allow me to further enhance my skills and contri

  • Answered by AI
  • Q3. Career goals and motivation
  • Q4. Team work and communication
  • Q5. Problem solving and adaptability
  • Q6. Behavioral questions

Interview Preparation Tips

Interview preparation tips for other job seekers - 1.update the resume
2.practice interview skills
3.Follow the interview tips

Python Developer Intern Interview Questions asked at other Companies

Q1. what is python? what is a list? what is a tuple? what is set? Difference between list and tuple. Class and object. lambda function. map function filter function inheritance deep copy and shallow copy what is a dictionary? monkey patching. w... read more
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Oracle Interview Questions and Answers for Freshers
illustration image
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I was interviewed in Dec 2024.

Round 1 - Technical 

(2 Questions)

  • Q1. What is ipconf.pl?
  • Ans. 

    ipconf.pl is a Perl script used for configuring network interfaces on Linux systems.

    • ipconf.pl is typically used to set up IP addresses, netmasks, gateways, and DNS servers on Linux machines.

    • It can be used to automate the configuration of network interfaces during system setup or maintenance.

    • The script may also be used to troubleshoot network connectivity issues by checking and modifying network settings.

    • ipconf.pl is of...

  • Answered by AI
  • Q2. What is the difference between scan vip & node vip?
  • Ans. 

    Scan VIP is used for load balancing traffic to multiple nodes, while Node VIP is assigned to a specific node for direct access.

    • Scan VIP is a virtual IP address used for load balancing traffic across multiple nodes in a cluster.

    • Node VIP is a virtual IP address assigned to a specific node in the cluster for direct access.

    • Scan VIP is typically used for services that need to be highly available and distributed across multi...

  • Answered by AI
Round 2 - One-on-one 

(3 Questions)

  • Q1. What is quarantile in Exadata?
  • Ans. 

    Quarantile in Exadata is a feature that isolates problematic cells to prevent them from affecting the rest of the system.

    • Quarantile is a feature in Exadata that identifies and isolates cells that are experiencing issues or failures.

    • It helps prevent the spread of issues to other cells in the system, ensuring high availability and performance.

    • Quarantiled cells are still accessible for diagnosis and maintenance, but are n...

  • Answered by AI
  • Q2. How to identify the master switch in Exadata?
  • Ans. 

    The master switch in Exadata can be identified by checking the status of the cell server software.

    • Check the status of the cell server software using the 'cellcli' command

    • The cell server with the 'MS' role is the master switch

    • The master switch can also be identified by checking the 'cellinit.ora' file

  • Answered by AI
  • Q3. What is spine switch & leaf switch in exadata?
  • Ans. 

    Spine switch and leaf switch are networking components in Exadata used for connecting database servers and storage servers.

    • Spine switch acts as the core of the network, connecting all leaf switches and providing high-speed connectivity.

    • Leaf switches connect database servers and storage servers to the spine switch, facilitating communication between them.

    • Exadata uses a leaf-spine network architecture for efficient data ...

  • Answered by AI
Round 3 - Case Study 

One of the node of a 3 node cluster is down. Explain the step by step process to troubleshoot the issue.

Round 4 - Coding Test 

Shell script & terraform code output was asked.

Top Oracle Senior Devops Engineer Interview Questions and Answers

Q1. What is the difference between scan vip & node vip?
View answer (1)

Senior Devops Engineer Interview Questions asked at other Companies

Q1. What are Terraform life cycles ? and how do we use them ?
View answer (3)
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Dec 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. What are joins in SQL, and what are the different types?
  • Ans. 

    Joins in SQL are used to combine rows from two or more tables based on a related column between them.

    • Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

    • INNER JOIN returns rows when there is at least one match in both tables.

    • LEFT JOIN returns all rows from the left table and the matched rows from the right table.

    • RIGHT JOIN returns all rows from the right table and the matched rows from the left tabl...

  • Answered by AI
  • Q2. What is the method to find the third highest salary in a dataset?
  • Ans. 

    Use the SQL query with ORDER BY and LIMIT to find the third highest salary.

    • Use the SQL query: SELECT DISTINCT Salary FROM Employees ORDER BY Salary DESC LIMIT 2, 1

    • The above query will return the third highest salary from the 'Employees' table

    • Make sure to replace 'Employees' and 'Salary' with the appropriate table and column names

  • Answered by AI
Round 2 - One-on-one 

(2 Questions)

  • Q1. How do you manage multiple clients simultaneously?
  • Ans. 

    I prioritize tasks, set clear expectations, utilize time management tools, and communicate effectively.

    • Prioritize tasks based on urgency and importance

    • Set clear expectations with clients regarding response times and availability

    • Utilize time management tools such as calendars and task lists

    • Communicate effectively with clients to provide updates and manage expectations

  • Answered by AI
  • Q2. How do you determine which issue to prioritize when faced with multiple problems?
  • Ans. 

    I prioritize issues based on impact, urgency, and complexity.

    • Assess the impact of each issue on the system or users

    • Consider the urgency of resolving each issue

    • Evaluate the complexity of fixing each issue

    • Prioritize critical issues that have high impact, urgency, and low complexity

    • Create a priority list based on these factors

  • Answered by AI

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Q1. What is a database management System and what is concept of primary key and foreign key?
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Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Company Website and was interviewed in Oct 2024. There were 3 interview rounds.

Round 1 - Coding Test 

It was a coding round interview along with interviewer via Virtual mode. I was given 2 coding questions on HackerRank for the interview:

1. one was an easy problem on counting minimum replacements.
2. "pat is an ordinary kid who works hard to be a great runner...." this was a challenging problem (which I managed to solve).
3. I was asked some basic Python questions, as the role was for a Python Developer.

Round 2 - Technical 

(5 Questions)

  • Q1. LLD for Parking Lot
  • Q2. Which database are you going to use for Parking lot and Why ?
  • Ans. 

    I would use a relational database like MySQL for the Parking lot as it provides structured data storage and supports complex queries.

    • Relational databases like MySQL offer structured data storage for parking lot information

    • Supports complex queries for managing parking lot data efficiently

    • Ability to handle large amounts of data and transactions

    • Provides data integrity and security features

    • Can easily integrate with other s

  • Answered by AI
  • Q3. Questions related to OOPs
  • Q4. Questions related to Multi Threading
  • Q5. Questions related to Projects
Round 3 - Managiral Round 

(2 Questions)

  • Q1. I hate this since i was informed that this round was a technical.
  • Q2. Usual Mangerial questions, Project Related, etc

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on Problem Solving, DSA, LLD Problems ofcourse the HR and Managerial round questions.

Top Oracle Software Developer Interview Questions and Answers

Q1. Triplets with Given Sum Problem Given an array or list ARR consisting of N integers, your task is to identify all distinct triplets within the array that sum up to a specified number K. Explanation: A triplet is a set {ARR[i], ARR[j], ARR[k... read more
View answer (1)

Software Developer Interview Questions asked at other Companies

Q1. Maximum Subarray Sum Problem Statement Given an array of integers, determine the maximum possible sum of any contiguous subarray within the array. Example: Input: array = [34, -50, 42, 14, -5, 86] Output: 137 Explanation: The maximum sum is... read more
View answer (42)

Get interview-ready with Top Oracle Interview Questions

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Aug 2024. There were 4 interview rounds.

Round 1 - Coding Test 

Round 1: HackerRank Test (100 Minutes)
1 DSA question (medium level, binary search on answers)
20 technical questions (OS, DBMS, CN, and other CS fundamentals)
15 general aptitude and communication questions

Round 2 - One-on-one 

(7 Questions)

  • Q1. What is static and dynamic binding in java
  • Ans. 

    Static binding is resolved at compile time while dynamic binding is resolved at runtime in Java.

    • Static binding is also known as early binding.

    • Dynamic binding is also known as late binding.

    • Example of static binding: method overloading.

    • Example of dynamic binding: method overriding.

  • Answered by AI
  • Q2. Sort the linked list
  • Ans. 

    Sorting a linked list involves rearranging the nodes in a specific order.

    • Iterate through the linked list and compare each node with the next one

    • Use a sorting algorithm like bubble sort, merge sort, or quick sort to rearrange the nodes

    • Update the pointers to connect the nodes in the sorted order

  • Answered by AI
  • Q3. What are JAR files?
  • Ans. 

    JAR files are Java Archive files that store multiple Java class files and related metadata.

    • JAR files are used to package Java classes, resources, and metadata into a single file.

    • They are commonly used for distributing Java libraries or applications.

    • JAR files can be created using the 'jar' command in Java.

    • They can also be executed using the 'java -jar' command.

    • Example: mylibrary.jar contains all the class files and reso

  • Answered by AI
  • Q4. Singleton Class example
  • Ans. 

    A Singleton class is a class that can only have one instance created at a time.

    • Singleton classes are often used for managing resources that should only have one instance, such as a database connection.

    • To implement a Singleton class, you typically make the constructor private and provide a static method to access the single instance.

    • Example: Singleton class for logging system where only one instance of the logger is nee

  • Answered by AI
  • Q5. CAP Theorem and its trade-offs
  • Ans. 

    CAP Theorem states that in a distributed system, it is impossible to simultaneously guarantee consistency, availability, and partition tolerance.

    • Consistency: All nodes in the system have the same data at the same time.

    • Availability: Every request gets a response, even if some nodes are down.

    • Partition Tolerance: The system continues to operate despite network partitions.

    • Trade-offs: In a distributed system, you can only h...

  • Answered by AI
  • Q6. Given 2–3 tables, wrote SQL queries based on joins and basic subqueries
  • Q7. Explain wait() and signal()
  • Ans. 

    wait() and signal() are functions used for synchronization in multithreading.

    • wait() is used to make a thread wait until a certain condition is met

    • signal() is used to wake up a waiting thread when the condition is met

    • Example: Producer-consumer problem where producer signals consumer to consume when a new item is produced

  • Answered by AI
Round 3 - One-on-one 

(3 Questions)

  • Q1. Design schema and draw ER diagram for Airport Management System
  • Ans. 

    Airport Management System schema and ER diagram design

    • Entities: Airport, Flight, Passenger, Employee, Schedule

    • Attributes: Airport (code, name, location), Flight (number, destination, departure time), Passenger (name, age, contact info), Employee (ID, name, role), Schedule (flight number, date, time)

    • Relationships: Airport has many Flights, Flight has many Passengers, Employee works at Airport, Flight has Schedule

  • Answered by AI
  • Q2. Normalize a given table; I normalized it up to 3NF.
  • Ans. 

    Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.

    • Identify the functional dependencies in the table

    • Eliminate partial dependencies by breaking the table into multiple tables

    • Eliminate transitive dependencies by further breaking down the tables

    • Ensure each table has a primary key and all non-key attributes are fully functionally dependent on the primary key

  • Answered by AI
  • Q3. In-depth projects analysis
Round 4 - One-on-one 

(4 Questions)

  • Q1. Explain REST with examples
  • Ans. 

    REST is an architectural style for designing networked applications

    • REST stands for Representational State Transfer

    • It uses standard HTTP methods like GET, POST, PUT, DELETE

    • Resources are identified by URIs

    • Data is transferred in JSON or XML format

    • Example: GET request to 'https://api.example.com/users' to retrieve a list of users

  • Answered by AI
  • Q2. Differences between PUT and POST, and write POST method
  • Ans. 

    PUT is used to update or replace an existing resource, while POST is used to create a new resource.

    • PUT is idempotent, meaning multiple identical requests will have the same effect as a single request

    • POST is not idempotent, meaning multiple identical requests may have different effects

    • PUT is used to update an existing resource at a specific URI

    • POST is used to create a new resource under a specific URI

    • Example: PUT /users...

  • Answered by AI
  • Q3. Discussion about status codes
  • Q4. Various HTTP requests and CRUD operations

Interview Preparation Tips

Topics to prepare for Oracle Quality Analyst interview:
  • OS
  • DBMS
  • SQL
  • Java
  • Rest
  • Machine Learning
  • DSA
  • Data Structures
Interview preparation tips for other job seekers - Maintain a small smile and stay relaxed. This helps you look confident and approachable.

Only include skills on your resume that you’re confident in.

If you’re stuck on a question, don’t panic. Just tell the interviewer what you’re thinking.

If a question isn’t clear, don’t hesitate to ask for clarification; it’s better to fully understand than to guess.

Express your ideas clearly and explain your thought process. Good communication helps the interviewer understand your skills and how you approach problems.

Prepare a few thoughtful questions to ask the interviewer. This shows that you’re interested in the job and have done your research.

Skills evaluated in this interview

Top Oracle Quality Analyst Interview Questions and Answers

Q1. What is static and dynamic binding in java
View answer (1)

Quality Analyst Interview Questions asked at other Companies

Q1. How you will maintain the balance between operations and quality so that they do not have any conflicts of interest
View answer (3)

Jobs at Oracle

View all
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I applied via Approached by Company and was interviewed in Oct 2024. There were 2 interview rounds.

Round 1 - One-on-one 

(3 Questions)

  • Q1. Java basic questions.
  • Q2. Rest basics methods like get, post, put, delete etc
  • Q3. Given a directory name, write a program to return a list of all .tst files present in the directory and its sub directories.
  • Ans. 

    Program to return list of .tst files in given directory and subdirectories

    • Use recursion to traverse through all directories and subdirectories

    • Check if each file has .tst extension and add to list if true

    • Use built-in functions like os.listdir() and os.path.splitext() in Python

  • Answered by AI
Round 2 - One-on-one 

(4 Questions)

  • Q1. Difference between == and equals
  • Ans. 

    The '==' operator is used for comparing values of primitive data types, while the 'equals' method is used for comparing objects in Java.

    • Use '==' to compare primitive data types like int, char, boolean, etc.

    • Use 'equals' method to compare objects like Strings, Lists, etc.

    • Example: int a = 5; int b = 5; if(a == b) { // true }

    • Example: String str1 = 'hello'; String str2 = 'hello'; if(str1.equals(str2)) { // true }

  • Answered by AI
  • Q2. Use case of abstract class and interfaces
  • Ans. 

    Abstract classes are used to provide a common base for multiple classes, while interfaces define a contract for classes to implement.

    • Abstract classes can contain both abstract and concrete methods, while interfaces can only have abstract methods.

    • Abstract classes can have constructors, while interfaces cannot.

    • Interfaces allow for multiple inheritance, while classes can only inherit from one abstract class.

    • Abstract class...

  • Answered by AI
  • Q3. Singleton design pattern. Explain and implement (thread safe)
  • Ans. 

    Singleton design pattern ensures a class has only one instance and provides a global point of access to it.

    • Ensure a private static instance variable in the class.

    • Provide a public static method to access the instance, creating it if necessary.

    • Use synchronized keyword or double-checked locking to make it thread-safe.

  • Answered by AI
  • Q4. Merge sort. Explain and implement.
  • Ans. 

    Merge sort is a divide and conquer algorithm that divides the input array into two halves, sorts each half, and then merges the sorted halves.

    • Divide the array into two halves

    • Recursively sort each half

    • Merge the sorted halves back together

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Oracle Full Stack Software Developer interview:
  • Java
  • Spring
  • DSA
  • REST API
  • SOAP

Skills evaluated in this interview

Full Stack Software Developer Interview Questions asked at other Companies

Q1. Oops in Java Patterns in Java JDK,JRE,JVM MVC Array questions strings in Java This,super keywords Java problems like palindrome, prime number,and so many problems and logics Why java is platform independent Why java is not platform dependen... read more
View answer (1)

Software Developer Interview Questions & Answers

user image Swati Ambule

posted on 22 Nov 2024

Interview experience
1
Bad
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected
Round 1 - Technical 

(4 Questions)

  • Q1. What is java and explain oopes concept
  • Ans. 

    Java is a popular programming language used for developing various applications. OOPs (Object-Oriented Programming) is a programming paradigm based on the concept of objects.

    • Java is a class-based, object-oriented programming language.

    • OOPs concepts include encapsulation, inheritance, polymorphism, and abstraction.

    • Encapsulation is the bundling of data and methods that operate on the data into a single unit.

    • Inheritance al...

  • Answered by AI
  • Q2. What is testing explain types
  • Ans. 

    Testing is the process of evaluating a software application to identify defects or bugs.

    • Types of testing include unit testing, integration testing, system testing, acceptance testing, and regression testing.

    • Unit testing involves testing individual components or modules of the software.

    • Integration testing checks if different modules work together correctly.

    • System testing evaluates the entire system's functionality.

    • Accep...

  • Answered by AI
  • Q3. What is exceptions handling
  • Ans. 

    Exceptions handling is a mechanism to handle errors or exceptional situations in a program.

    • Exceptions allow for graceful handling of errors without crashing the program

    • Try-catch blocks are commonly used to catch and handle exceptions

    • Exceptions can be thrown manually using 'throw' keyword

    • Common exceptions include NullPointerException, ArrayIndexOutOfBoundsException, etc.

  • Answered by AI
  • Q4. Locators in automation selenium
  • Ans. 

    Locators in automation selenium are used to identify web elements on a webpage for testing purposes.

    • Locators include ID, class name, name, tag name, link text, partial link text, and xpath.

    • ID is the most efficient locator as it is unique for each element.

    • Xpath is powerful but can be slow and brittle if not used correctly.

    • Using CSS selectors can also be a good alternative to xpath.

    • It is important to choose the right loc...

  • Answered by AI

Skills evaluated in this interview

Top Oracle Software Developer Interview Questions and Answers

Q1. Triplets with Given Sum Problem Given an array or list ARR consisting of N integers, your task is to identify all distinct triplets within the array that sum up to a specified number K. Explanation: A triplet is a set {ARR[i], ARR[j], ARR[k... read more
View answer (1)

Software Developer Interview Questions asked at other Companies

Q1. Maximum Subarray Sum Problem Statement Given an array of integers, determine the maximum possible sum of any contiguous subarray within the array. Example: Input: array = [34, -50, 42, 14, -5, 86] Output: 137 Explanation: The maximum sum is... read more
View answer (42)

Interview Questions & Answers

user image Anonymous

posted on 14 Jan 2025

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected
Round 1 - Technical 

(2 Questions)

  • Q1. What are some common questions related to Linux Administration?
  • Q2. Can you provide details on how to write shell scripts to automate basic tasks while handling input parameters?

Interview Preparation Tips

Interview preparation tips for other job seekers - Scenario-based questions involve problem or incident handling, particularly regarding the management of P1 outages, as well as troubleshooting and writing Root Cause Analyses (RCAs).
Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
No response

I was interviewed in Dec 2024.

Round 1 - Aptitude Test 

Basic aptitude questions and two coding questions were asked.

Round 2 - Technical 

(2 Questions)

  • Q1. Introduce yourself
  • Ans. 

    I am a dedicated and experienced Programmer Analyst with a strong background in software development and system analysis.

    • Over 5 years of experience in programming and analyzing software systems

    • Proficient in languages such as Java, C++, and SQL

    • Skilled in conducting system analysis and designing solutions

    • Strong problem-solving and communication skills

    • Previous projects include developing a web-based inventory management s

  • Answered by AI
  • Q2. Question in dbms, skills, about oracle
Round 3 - One-on-one 

(2 Questions)

  • Q1. Basic hr questions
  • Q2. Basic hr questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Be thorough with concepts in DBMS and ensure your resume reflects your expertise.

Programmer Analyst Interview Questions asked at other Companies

Q1. 1 Tell me about your self 2 What is c# 3 What is oops concept 4 What is Delegate 5 Difference between polymorphism and what are its type 6 What is out and ref keyword 7 What is call by ref and call by value 8 What is namespace 9  What ... read more
View answer (12)
Interview experience
4
Good
Difficulty level
Easy
Process Duration
2-4 weeks
Result
No response

I applied via Referral and was interviewed in Oct 2024. There was 1 interview round.

Round 1 - Technical 

(3 Questions)

  • Q1. Questions about OOPS includes inheritence, interface, abstract classes, access specifiers
  • Q2. Coding question: given a vector, return a vector where each entry in the resultant vector is the product of the remaining elements in the given vector.
  • Q3. Coding question: given a vector numbers, return the index of the vector which has the longest length palindrome
  • Ans. 

    Return the index of the vector with the longest length palindrome

    • Iterate through each string in the vector

    • Check if the string is a palindrome

    • Track the index of the longest palindrome string

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Oracle Software Engineer interview:
  • oops
  • C++
  • Java
  • Python
  • DSA

Top Oracle Software Engineer Interview Questions and Answers

Q1. Reverse Words in a String: Problem Statement You are given a string of length N. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading or trailing spaces. The output should... read more
View answer (1)

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (196)
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Oracle Interview FAQs

How many rounds are there in Oracle interview?
Oracle interview process usually has 2-3 rounds. The most common rounds in the Oracle interview process are Technical, One-on-one Round and Coding Test.
How to prepare for Oracle interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Oracle. The most common topics and skills that interviewers at Oracle expect are Oracle, Java, Javascript, Python and SQL.
What are the top questions asked in Oracle interview?

Some of the top questions asked at the Oracle interview -

  1. Tell me about the OS your phone uses? What are the other phone operating system...read more
  2. Puzzle: – Two persons X and Y are sitting side by side with a coin in each’...read more
  3. 1. Write a program to remove duplicate elements from String and mention the cou...read more
How long is the Oracle interview process?

The duration of Oracle interview process can vary, but typically it takes about less than 2 weeks to complete.

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