Cisco Networking Academy Software Developer Intern Interview Questions and Answers

Q1. Coding question: Given a sorted array of numbers. All numbers have freq of 2 in array except one number. Find that number with T.C of logn
Ans. 
Find the single number in a sorted array with frequency of 2 for all other numbers.
• Use binary search to find the number with different frequency.

• Check if the mid element is at even or odd index to determine which side to search next.

• Example: Input array [1, 1, 2, 2, 3, 3, 4, 4, 5] should return 5.
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Q2. Print left view of tree
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Print the left view of a tree by traversing the tree from left to right at each level
• Traverse the tree using level order traversal

• Print the first node at each level encountered during traversal
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Q1. Detailed discussion on projects
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Q2. Questions on O.S like about deadlocks,etc..
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Q1. What is oops , explain its concepts
Ans. 
OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.
• OOPs concepts include encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation refers to the bundling of data with the methods that operate on that data.

• Inheritance allows a class to inherit properties and behavior from another class.

• Polymorphism allows objects to be treated as instances of their par...read more
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Q2. What do you know about collections in java explain it
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Collections in Java are classes that represent groups of objects, providing operations for manipulation and iteration.
• Collections framework in Java provides interfaces (e.g. List, Set, Map) and classes (e.g. ArrayList, HashSet, HashMap) for storing and manipulating groups of objects.

• Collections offer methods for adding, removing, and accessing elements in a collection.

• Collections also provide methods for sorting, searc...read more
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Q1. Tell me about yourself
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I am a passionate software engineer with experience in developing web applications using various technologies.
• Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular

• Proficient in backend development with Node.js and databases like MongoDB and MySQL

• Familiar with version control systems like Git and deployment tools like Docker
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Q2. Situation based behaviourial questions
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Q1. About myself and my working skills and my previous experience
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Q2. What is expected salary
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Q3. Are willing to reloacte
Ans. 
Yes, I am willing to relocate for the right opportunity.
• I am open to relocating for a position that aligns with my career goals

• I have relocated for previous job opportunities and am comfortable with the process

• I understand the importance of being flexible and adaptable in the tech industry
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C#,Dotnet MVC,Webform ,sql server, write code ,they give task ask about and explanation.

Q1. Policy term and conditions and expectation
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Q2. Why i am leaving privious organization
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Q1. Microservice what is and Architecture
Ans. 
Microservices are a software development approach where applications are broken down into smaller, independent services that communicate with each other.
• Microservices are small, independent services that work together to form a larger application

• Each microservice is responsible for a specific function or feature

• Microservices communicate with each other through APIs

• Microservices can be developed, deployed, and scaled in...read more
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Q1. Profermance and error management questions
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The first round was aptitude and it has 3 sections

They gave coding regarding java

Q1. Tell about Oops concepts
Ans. 
OOPs concepts are fundamental principles in object-oriented programming, including inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class Dog extends Animal.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: private variables and public methods.

• Polymorphism: Ability to present...read more
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Q2. Difference between method overloading and method overriding
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Method overloading is having multiple methods in the same class with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in its superclass.
• Method overloading is resolved at compile time based on the method signature, while method overriding is resolved at runtime based on the object type.

• Method overloading is used to provide different ...read more
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Q1. DB Schema Design
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Q1. REST API, SQL and SOLID Principles
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Q1. Resume Based Round with Manager
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Q1. It was basically a salary negotiation round.
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Coding test are assessments that are designed to evaluate a developer's coding skills and aptitude.

An aptitude test is an exam used to determine an individual's skill or propensity to succeed in a given activity

Medium leetcode question on graph was given by third party interviewer BarRaiser