CISCO Full-time recruitment for freshers

Round 1: 

Online Test (90 minutes)

25 MCQs – Aptitude, C, C++, Computer Networks, Computer Architecture (no negative marks)



2 Coding questions

Round 2:

Technical Interview (45 minutes)

  • To which OSI layers switch and router belong to? What is the difference between a switch and a router?
  • What is subnetting?
  • What are the classes in classful addressing and what range of addresses belong to each class?
  • What is the blue cable that you see there (Interviewer points at Ethernet cable)? How does it work?
  • What is the difference between IPv4 and IPv6?
  • How does TCP/IP work?
  • How is a TCP connection established and terminated? Draw TCP three-way handshake.
  • What happens in physical layer of OSI architecture?
  • What happens when you type www.cisco.com? Explain Domain Name Server (DNS).
  • How many stacks do you need to implement a queue? Write a pseudocode for its implementation.
  • How do you find repeating elements in and array?
  • Explain threads in Operating Systems.
  • What is multithreading? What are its advantages?
  • How is a recycle bin internally implemented?
  • Have you found out any real-life problem to which you thought of a software solution? Did you take any steps to solve it?

Round 3:

Managerial Interview (40 minutes)

  • Tell me about yourself.
  • What are your strengths and weaknesses?
  • What is your passion?
  • Why Cisco?
  • How does a router work?
  • In case of any fault in a path, how does a dynamic routing protocol switches path?
  • What is an atomic transaction? How can you ensure if a transaction is atomic?
  • Explain your project.
  • How was your experience while working with your teammates?

Round 4:

HR Round (10 minutes)

  • Are you available for both Intern and full-time?
  • Do you have any plans of pursuing higher studies?
  • Are you comfortable in working as shifts?
  • Location preference
  • Discussion about nature of work.


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