Cisco Software Engineer Interview Questions, Process, and Tips

Matrix problem of traversing the matrix in a spiral way

Q1. Maximum sum subarray- I chose Python as my language
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Q2. Merge Sort Implementation- I chose C++ as my language
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HackerRank test link for 2 problems and all the test cases must be pass to get selected for next round

Q1. 4-5 random programs to check the logic.
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Q2. OS concept and questions on this.
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Q3. Memory leak and optimization techniques and apply same on the programming questions.
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Online hackerrank apititude test covering some C coding as well

Hackerrank medium question

Discussion on current world affaris

Q1. How do you implement a queue using as stacks
Ans. 
Implement a queue using two stacks by using one stack for enqueue operation and another stack for dequeue operation.
• Use one stack for enqueue operation by pushing elements onto it.

• Use another stack for dequeue operation by popping elements from it. If the dequeue stack is empty, transfer all elements from the enqueue stack to the dequeue stack.

• Maintain the order of elements by transferring elements between the two stac
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Q2. Generate a spiral for given matrix in clockwise direction
Ans. 
Generate a spiral order traversal of a given matrix in clockwise direction
• Initialize variables for top, bottom, left, right boundaries

• Iterate through the matrix in a spiral order while adjusting boundaries

• Add elements to the result array in the spiral order
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Q1. Preferred location?
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Q1. Position : Platform engineer.Mainly basic C questions ,like pointers , bit wise operations. Basic linux questions, like booting process , kernel debugging techniques .Detail questions on i2c , includes deb...read more
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Q1. Same like 1st round .
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Q1. Just salary discussions
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Normal coding round with two questions

Q1. Technical discussion round with detailed on design and technical things
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Q2. Performance improvements in Angular
Ans. 
Performance improvements in Angular can be achieved through lazy loading, AOT compilation, and optimizing change detection.
• Lazy loading: load modules only when needed

• AOT compilation: pre-compile templates for faster rendering

• Optimizing change detection: use OnPush strategy, avoid unnecessary bindings

• Use trackBy function for ngFor loops

• Use pure pipes instead of impure pipes

• Use ngZone.runOutsideAngular() for heavy comput...read more
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Q3. What are possible security issues and How to manage Security concerns in web application
Ans. 
Possible security issues and how to manage them in web applications
• SQL injection attacks

• Cross-site scripting (XSS) attacks

• Cross-site request forgery (CSRF) attacks

• Insecure authentication and authorization mechanisms

• Sensitive data exposure

• Implementing secure coding practices

• Regularly updating software and security patches

• Conducting regular security audits and penetration testing

• Implementing multi-factor authentication

• Us...read more
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Q1. Questions related to team management and working in teams, leadership etc
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Q1. Normal HR questions like why Cisco, why changing current job etc
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Q1. Basic in C, questions on projects
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Q2. Pointer arithmetic, Bitwise operators etc
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Q1. Coding questions on Data structures
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Q2. LinkedLists, Pointers related questions
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Q1. Discussion on projects, bit wise operators
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Q1. Discussion with manager - Details about projects, their existing project
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