JioStar Network Engineer L1 Interview Questions, Process, and Tips

VLAN stands for Virtual Local Area Network. It is a logical grouping of devices on a network, allowing for better network management and security.

• VLANs divide a single physical network into multiple virtual networks.

• They help in reducing network congestion and improving network performance.

• VLANs can be configured on switches using commands like 'vlan database', 'vlan ', and 'interface switchport access vlan '.

Access ports are used to connect end devices, while trunk ports are used to carry traffic between switches.

• Access ports are assigned to a single VLAN and carry traffic for that VLAN only.

• Trunk ports can carry traffic for multiple VLANs using VLAN tagging.

• Access ports are typically used for devices like computers, printers, and IP phones.

• Trunk ports are used to interconnect switches or connect to network devices like ro...read more

To check uptime of Routers & Switches, use the show version command.

• Log in to the device using SSH or Telnet.

• Enter the show version command.

• Look for the line that starts with 'uptime'.

• The uptime will be displayed in the format of days, hours, minutes, and seconds.

• Alternatively, you can use network monitoring tools like Nagios, PRTG, or SolarWinds to monitor uptime.

• These tools can provide alerts when a device goes down

Routing and switching are fundamental concepts in computer networking that involve directing and forwarding data packets.

• Routing is the process of determining the best path for data packets to travel from one network to another.

• Switching is the process of forwarding data packets within a network based on their destination MAC addresses.

• Routing protocols like OSPF and BGP are used to exchange routing information between...read more

LAN/WAN refers to local area network and wide area network respectively. VLAN is a virtual LAN that allows for logical segmentation of a network.

• LAN is a network that covers a small geographical area, typically within a single building or campus.

• WAN is a network that spans a large geographical area, connecting multiple LANs or remote locations.

• VLAN is a virtual LAN that enables the creation of multiple logical networks...read more

A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

• Firewall acts as a barrier between a trusted internal network and an untrusted external network.

• It examines network packets and filters them based on rules to allow or block traffic.

• Firewalls can be hardware-based or software-based.

• Examples of firewalls include Cisco ASA, Palo A

Developed a Btech project on automated attendance system using facial recognition.

• Developed a software application to automate the attendance process in educational institutions.

• Implemented facial recognition technology to identify and mark attendance of students.

• Used machine learning algorithms to train the system for accurate recognition.

• Integrated the application with a database to store attendance records.

• Provided ...read more

Code Pascal's Triangle

• Pascal's Triangle is a triangular array of binomial coefficients

• Each number is the sum of the two numbers above it

• The first and last numbers in each row are 1

• Can be implemented using nested loops or recursion

An abstract function is a function that has no implementation and must be implemented by its subclasses.

• An abstract function is declared with the 'abstract' keyword.

• It is used to define a template for its subclasses to follow.

• It cannot be instantiated and must be implemented by its subclasses.

• It can have abstract and non-abstract methods.

• Example: abstract class Animal { abstract void makeSound(); }

• Example: class Dog ex...read more

Abstract functions cannot be instantiated and must be implemented by child classes, while normal functions can be directly called.

• Abstract functions have no implementation in the parent class, while normal functions do.

• Abstract functions are declared with the 'abstract' keyword, while normal functions are not.

• Normal functions can be called directly, while abstract functions must be implemented by child classes.

• An examp...read more

Perfectionism and public speaking anxiety

• I tend to be a perfectionist, which can sometimes lead to spending too much time on a task

• I struggle with public speaking anxiety, but I have been working on improving my communication skills through practice and training

Capgemini is a global leader in consulting, technology services, and digital transformation.

• Capgemini has a strong reputation in the industry for delivering high-quality software solutions.

• The company offers a wide range of opportunities for career growth and development.

• Capgemini has a collaborative and inclusive work culture that fosters innovation and teamwork.

• The company has a global presence, providing exposure to...read more

I am a recent graduate with a degree in Computer Science and a passion for coding and problem-solving.

• Graduated with a degree in Computer Science

• Passionate about coding and problem-solving

• Completed internships at tech companies

I was responsible for managing social media accounts and creating engaging content for a marketing agency.

• Managed social media accounts for clients

• Created content calendars and posts for various platforms

• Analyzed engagement metrics to optimize content strategy

MBA provides advanced business knowledge, skills, and networking opportunities.

• MBA helps develop strategic thinking and leadership skills.

• It provides a deeper understanding of business concepts and practices.

• MBA graduates often have better job prospects and higher earning potential.

• Networking opportunities with industry professionals and alumni can lead to valuable connections.

• Specializations in areas like finance, mar...read more

Key takeaways from MBA include leadership skills, strategic thinking, and networking opportunities.

• Developing strong leadership skills through coursework and group projects

• Learning strategic thinking and decision-making through case studies and simulations

• Building a strong professional network through internships, networking events, and alumni connections

Cognizant offers a diverse range of opportunities for growth and development in the IT industry.

• Cognizant is a global leader in IT services and consulting.

• They have a strong reputation for delivering high-quality solutions to clients.

• Cognizant provides a collaborative and inclusive work environment.

• They offer extensive training and learning programs to enhance skills.

• Cognizant has a strong focus on innovation and digit...read more

Studied case studies on marketing strategies and ethical dilemmas in business.

• Analyzed a case study on how Coca-Cola's marketing strategies helped increase sales and brand awareness.

• Discussed a case study on a company facing an ethical dilemma and the consequences of their decisions.

• Explored the impact of social media on consumer behavior in a case study on a successful marketing campaign.

My goal in life is to make a positive impact on others and contribute to the betterment of society.

• To work towards improving healthcare access and quality

• To advocate for social justice and equality

• To continuously learn and grow both personally and professionally

• To build meaningful relationships and support others in their journeys

• To leave a lasting legacy that inspires future generations

I resolved a disagreement between two team members by facilitating a meeting and encouraging open communication.

• Identified the root cause of the disagreement

• Scheduled a meeting with both parties to discuss the issue

• Encouraged open communication and active listening

• Facilitated a compromise that satisfied both parties