Cisco System Software Engineer 2 Interview Questions and Answers

Typically 1 hour and two medium questions in C programming

Q1. About Operating Systems -
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Q2. Given a 8 bit micro controller write a program to handle interrupt. Write program to reverse linked list, binary format linked list eg, for integer 8, output 1->0->0->0
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Q1. Mutex, semaphore, how interupts are handled top half bottom half. Device drivers related questions
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Q2. What happens when we type www.google.com from host computer, host- >switch->router(s)->host path. Typical questions related to networking layers
Ans. 
When typing www.google.com from a host computer, the request goes through the host, switch, router(s), and finally reaches the destination host.
• The host computer sends a DNS query to resolve the domain name www.google.com to an IP address.

• The switch forwards the DNS query to the router, which determines the next hop towards the destination.

• The router(s) route the request through various networks until it reaches the de...read more
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Q1. Networking L2 level protocol based questions, Debugging questions at kernel level. What happens when packet reaches networking interface. Debugging at chipset level questions.
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Q1. Merge sort, question specific to resume
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