Cisco IT Engineer Interview Questions and Answers for Freshers

OOPs concept stands for Object-Oriented Programming concepts which includes encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation is the process of hiding the implementation details from the user.

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

• Polymorphism allows objects to take on multiple forms or behaviors.

• Abstraction is the process of hiding unnecessary details from

Lazy loading is a technique used to defer the loading of non-critical resources until they are needed.

• It improves page load time and performance.

• It is commonly used for images, videos, and other media files.

• It can be implemented using JavaScript libraries like LazyLoad or Intersection Observer API.

• Lazy loading can also be used for modules and components in web applications.

• It helps to reduce the initial load time of th

Eager loading is a technique used in software development to load related data in advance to avoid multiple database queries.

• Eager loading is used to optimize database queries and improve performance.

• It loads all the required data in a single query instead of making multiple queries.

• It is commonly used in Object-Relational Mapping (ORM) frameworks like Hibernate, Entity Framework, etc.

• Eager loading can be used with var...read more

I am excited to join this company because of its reputation for innovation and commitment to employee growth.

• I am impressed by the company's track record of developing cutting-edge software solutions.

• I appreciate the emphasis on professional development and growth opportunities for employees.

• I am excited about the prospect of working with a talented and dedicated team.

• I believe that this company's values align with my ...read more

My role model is Elon Musk.

• I admire his innovative thinking and determination to push boundaries.

• His ability to lead multiple successful companies is inspiring.

• His focus on sustainable energy and space exploration aligns with my values.

• I strive to emulate his work ethic and passion for making a positive impact on the world.

I have been involved in various extra-curricular activities such as volunteering, sports, and music.

• Volunteered at local animal shelter

• Played on intramural basketball team

• Participated in school choir

• Attended coding workshops and hackathons

Seeking new challenges and growth opportunities.

• I felt that I had reached a plateau in my role and was no longer being challenged.

• I was interested in exploring new technologies and wanted to work on more innovative projects.

• I wanted to work in a more collaborative and dynamic environment.

• I left on good terms and have maintained positive relationships with my former colleagues.

• I am excited to bring my skills and experie...read more

I am excited to join Centurylink because of their reputation for innovation and commitment to customer satisfaction.

• Centurylink has a strong focus on developing cutting-edge technology solutions

• The company values customer feedback and strives to provide excellent service

• I am impressed by Centurylink's dedication to diversity and inclusion in the workplace

Relocated to Noida for better career opportunities and growth.

• Noida is a hub for IT companies and offers a lot of job opportunities in the software development field.

• The city has a good work-life balance and a lower cost of living compared to other metropolitan cities.

• I was also attracted to the diverse culture and the opportunity to work with people from different backgrounds.

• I did my research and found that Noida has...read more

Yes, I am comfortable working in US shift.

• I have prior experience working in US shift.

• I am flexible with my work timings.

• I understand the importance of meeting project deadlines.

• I am willing to adjust my personal schedule to accommodate work requirements.

I currently reside in New York City.

• I live in an apartment in Manhattan.

• My neighborhood is known for its diverse food options.

• I have easy access to public transportation.

• I enjoy exploring the city in my free time.

Program to reverse an integer

• Convert the integer to a string

• Reverse the string

• Convert the reversed string back to an integer

I have worked on various projects including a web application for inventory management and a mobile app for task tracking.

• Developed a web application using React for inventory management, allowing users to track stock levels and generate reports.

• Created a mobile app using Flutter for task tracking, enabling users to create, assign, and track tasks in real-time.

• Collaborated with a team of developers to integrate APIs an...read more

Yes, I am interested in studying further to enhance my skills and knowledge in software engineering.

• Interested in pursuing a Master's degree in Computer Science

• Enrolling in online courses to learn new technologies and programming languages

• Attending workshops and conferences to stay updated with industry trends

Reverse a linked list without using extra memory

• Iterate through the linked list and change the next pointers to reverse the list

• Use three pointers - prev, current, and next - to keep track of the reversed list

• Start with prev and current pointing to null and the head of the linked list respectively

• While traversing the list, update the next pointer of the current node to point to the previous node

• Move prev and current po...read more

Data structures are fundamental concepts in software engineering that organize and store data efficiently.

• Arrays: Simple and efficient for storing and accessing elements.

• Linked Lists: Dynamic and flexible, efficient for insertion and deletion.

• Stacks: LIFO structure, useful for managing function calls and undo operations.

• Queues: FIFO structure, ideal for managing tasks and scheduling.

• Trees: Hierarchical structure, used ...read more

The difference is that 'int arr[5]' creates an array on the stack, while 'malloc(5*sizeof(int))' allocates memory on the heap.

• int arr[5] creates an array of 5 integers on the stack, which is a fixed-size memory allocation.

• malloc(5*sizeof(int)) dynamically allocates memory on the heap, allowing for variable-size memory allocation.

• The memory allocated with malloc must be explicitly freed with free() to avoid memory leaks

I am a passionate software engineer with a strong background in computer science and experience in developing innovative solutions.

• Completed a Bachelor's degree in Computer Science from XYZ University

• Proficient in programming languages such as Java, Python, and C++

• Worked on various projects including a mobile app for tracking fitness goals

• Familiar with Agile development methodologies and version control systems like Gi

In 5 years, I see myself as a senior software engineer leading a team of developers on innovative projects.

• Continuing to enhance my technical skills and knowledge through ongoing learning and certifications

• Taking on more leadership responsibilities and mentoring junior team members

• Contributing to the development of cutting-edge software solutions for the company

• Possibly pursuing opportunities for advancement within the...read more

I tend to overthink details and can be overly critical of my own work.

• Overthinking details can lead to delays in completing tasks

• Being overly critical can hinder progress and confidence

Yes, I am interested in studying further to enhance my skills and stay updated with the latest technologies.

• I believe continuous learning is essential in the fast-paced tech industry

• Further studies can help me specialize in a specific area of software engineering

• Advanced degrees or certifications can open up new career opportunities