Cisco Interview Questions, Process, and Tips for Freshers

Q1. In a sorted matrix of 0s and 1s, return the row with max 1s
Ans. 
Iterate through each row and count the number of 1s, return the row with the maximum count.
• Iterate through each row of the matrix

• Count the number of 1s in each row

• Track the row with the maximum count of 1s
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Q1. Basic questions
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Q2. Experience and othwrs
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General aptitude and technical multiple choice questions

Q1. Code Sort question for input data stream
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Q2. Code Insertion sort and time complexity
Ans. 
Insertion sort is a simple sorting algorithm that builds the final sorted array one item at a time.
• Iterate through the array starting from the second element

• Compare each element with the elements before it and insert it in the correct position

• Time complexity is O(n^2) in the worst case scenario
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Q1. How do you proceed in certain scenarios?
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Q1. Best interview with you
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Q2. Withe all products sell now
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Q3. This interview is the best
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Q4. The youngest man and boys please join
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Netwroking basics ,some c coding questions and genral appitude

Q1. How does internet work?
Ans. 
The internet is a global network of interconnected computers and servers that communicate with each other using standardized protocols.
• The internet is made up of physical infrastructure such as cables, routers, and servers.

• Data is transmitted across the internet using standardized protocols such as TCP/IP.

• The Domain Name System (DNS) translates human-readable domain names into IP addresses.

• Web browsers such as Chrome a...read more
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Q2. Write a code for a palindrome
Ans. 
Code to check if a given string is a palindrome or not.
• Convert the string to lowercase to ignore case sensitivity.

• Use two pointers, one at the start and one at the end of the string.

• Compare the characters at both pointers and move them towards each other until they meet.

• If all characters match, the string is a palindrome.
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Q1. Questions related to the lift problem
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Q1. Tell me about yourself
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Q2. Do you know any competitors of cisco
Ans. 
Yes, some of the competitors of Cisco are Juniper Networks, Huawei, and Arista Networks.
• Juniper Networks is a networking equipment company that provides networking solutions to enterprises and service providers.

• Huawei is a Chinese multinational technology company that offers networking and telecommunications equipment and services.

• Arista Networks is a computer networking company that specializes in data center switches
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Q3. What is cisco main business
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Q4. Why type of a company you want to join an how does cisco aligns with it
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They ask us 40 mcqs and 2 coding questions. Mcqs are from networking,OS,DS,Ada and also have questions of general aptitude like direction,blood relation. Coding question are not easy both the questions are from Graph.

Q1. Subnetting, Supernetting,IPv4,Linkedlist,
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Q2. Find unique character from a string and optimize it
Ans. 
Find unique character from a string and optimize it
• Use a hash table to store the frequency of each character in the string

• Iterate through the hash table to find the character with frequency 1

• If there are multiple characters with frequency 1, return the first one

• Optimization: Stop iterating through the hash table once a character with frequency 1 is found
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They give me a scenario like you have to go from place A to place B then what should You consider.