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Engineer Iii Interview Questions

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I was asked a boolean logic riddle: You are walking and arrive at a dead end with 2 doors. You must get past this, but you are told that only one door is correct, leading you on your path and the other door is not correct and leads to something perilous. In front of each door is a guard. One guard always tells the truth and the other always lies. You may ask one of the guards one question, and then you must pick your door and go through it. What question do you ask, which door do you pick based on the answer, and why? This is actually not that hard once you realize that it's a boolean algebra problem, but I was surprised that I was asked that question.
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Software Engineer III

Interviewed at Cisco

4.1★
Dec 14, 2013

I was asked a boolean logic riddle: You are walking and arrive at a dead end with 2 doors. You must get past this, but you are told that only one door is correct, leading you on your path and the other door is not correct and leads to something perilous. In front of each door is a guard. One guard always tells the truth and the other always lies. You may ask one of the guards one question, and then you must pick your door and go through it. What question do you ask, which door do you pick based on the answer, and why? This is actually not that hard once you realize that it's a boolean algebra problem, but I was surprised that I was asked that question.

Round 1 Q1. Find min element in a sorted array rotated at a non-given point. E.g. 4 5 0 1 2 3 Q2. Given a binary tree and two nodes, find if the two nodes are cousins on not. Round 2 Q1. Design Instagram. HLD design. Junit test cases. Q2. Spring Boot life cycle and IOC. Some Annotations. Q3. Singleton pattern. Q4. Read through a file of 100 lines using multithreading. Round 3 Q1. Container with most water Q2. Tell me a situation where you went above and beyond your work.
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Software Development Engineer III

Interviewed at Walmart

3.4★
Jan 12, 2021

Round 1 Q1. Find min element in a sorted array rotated at a non-given point. E.g. 4 5 0 1 2 3 Q2. Given a binary tree and two nodes, find if the two nodes are cousins on not. Round 2 Q1. Design Instagram. HLD design. Junit test cases. Q2. Spring Boot life cycle and IOC. Some Annotations. Q3. Singleton pattern. Q4. Read through a file of 100 lines using multithreading. Round 3 Q1. Container with most water Q2. Tell me a situation where you went above and beyond your work.

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