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Numadic Iot Interview Questions and Answers
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Anonymous
Interview Questionnaire
2 Questions
- Q1. How would you increase the sales of newspaper in your locality?
- Ans.
To increase newspaper sales in the locality, I would focus on improving content, distribution, and marketing strategies.
Conduct market research to understand readers' preferences and interests
Create engaging and informative content that caters to the local audience
Offer attractive subscription packages and discounts to encourage regular readership
Partner with local businesses and events to increase visibility and distr...
- Q2. What new feature you would like to add in Google maps and how would it help to increase the company's revenue?
- Ans.
I would like to add a feature that suggests nearby events and attractions based on user preferences.
Personalized event and attraction recommendations
Integration with ticketing platforms for revenue sharing
Increased user engagement and retention
Interview Preparation Tips
Experience: In the written test they asked questions from logical and quantitative aptitude, verbal reasoning and few questions from core topics.
Round: HR Interview
Experience: This was followed by different rounds of interviews. The HR questions were mainly about me, my strengths and weaknesses and why do I want to join the company and where do I see myself in the next five years or so. Loads of guesstimate questions like estimate number of autos in Delhi and other similar cases.
College Name: LADY SHRI RAM COLLEGE
Interview Preparation Tips
Experience: First round was a written test which had 20 MCQ's in the field of Databases, Theory of computation, Operating systems, Data Structures and Algorithms and one programming question. 7 students (4 B.Tech, 3 M.Tech) got through to the interviews. Most of the interviews were held in the Google Bangalore campus. There were a total of 5 rounds of interviews. All based on Data Structures and Algorithms. Each round had 2 questions for which we were usually supposed to explain the algorithm first and then write the code on a Google doc. It was a really great experience. I got a chance to visit both Google Bangalore and Hyderabad campuses and taste their awesome food.
Total Questions: 20
General Tips: Practice your coding skills. Writing a neat code is very important. Interviewers not just look for a good algorithm but also your coding style (indentation, variable names, simplicity etc.)
College Name: NIT SURATHKAL
Software Developer Interview Questions & Answers
Google
Sree Meghana Thotakuri
posted on 10 Mar 2015
Interview Preparation Tips
Experience: Google's APAC test is an online coding round. The test is for 3 hours and it has 4 coding questions.
Duration: 180 minutes
Round: Technical Interview
Experience: I had 3 technical interviews. The questions asked in them consisted of algorithmic coding and design questions. The approach was more stressed upon. The interviewers were very helpful and they were generous in throw hints whenever I was blocked.
Skills: Algorithmic coding , C++
College Name: IIT BOMBAY
Interview Questionnaire
13 Questions
- Q1. Given a source array of integers with possible duplicates and a target integer, write algorithm to find out 2 numbers in source array whose sum is equal to target integer
- Ans.
Algorithm to find 2 numbers in an array whose sum is equal to a target integer
Use a hash table to store the difference between target and each element in the array
Iterate through the array and check if the current element exists in the hash table
Return the pair of elements that sum up to the target integer
- Q2. Say you have three tables WORK, USERS, MANAGERS WORK - work_id - user_id - how_much USERS - user_id - team MANAGERS - manager_id - team If I am a manager, write a select statement to retrieve the work o...
- Ans.
Write a select statement to retrieve work of all users who belong to my team.
Join USERS and WORK tables on user_id
Join MANAGERS and USERS tables on team
Filter by manager_id
- Q3. In a Chrome extension, which file contains the most important information of the extension like version, pattern matches, etc
- Ans.
The manifest.json file contains the most important information of a Chrome extension.
The manifest.json file includes the version number, permissions, content scripts, background scripts, and other important details.
It is located in the root directory of the extension.
It is required for all Chrome extensions.
Example: "manifest_version": 2, "version": "1.0", "permissions": ["tabs", "storage"]
- Q4. There are three rooms, and there are Princess, Flowers and Snake in those rooms. The doors of all the rooms have incorrect nameplates. i.e., the nameplate for the princess’ room is not Princess. Similarly,...
- Q5. Which is faster: finding an item in a hashtable or in a sorted list? And Why?
- Ans.
Hashtable is faster for finding an item than a sorted list.
Hashtable has constant time complexity O(1) for finding an item.
Sorted list has logarithmic time complexity O(log n) for finding an item.
Hashtable uses hashing to directly access the item's location.
Sorted list requires binary search to find the item's location.
Hashtable is ideal for large datasets with frequent lookups.
Sorted list is ideal for datasets that re
- Q6. What are some of the most popular Data interchange formats when using APIs
- Ans.
JSON and XML are the most popular data interchange formats when using APIs.
JSON (JavaScript Object Notation) is a lightweight format that is easy to read and write. It is widely used in web APIs.
XML (Extensible Markup Language) is a more complex format that is also widely used in web APIs.
Other formats include CSV (Comma Separated Values), YAML (YAML Ain't Markup Language), and Protocol Buffers.
- Q7. Name some popular APIs for each of these Social Commerce service(llike a photo service etc)
- Ans.
Popular APIs for Social Commerce services
Facebook Graph API for social media integration
Instagram API for photo sharing and tagging
Twitter API for real-time updates and customer engagement
Pinterest API for product discovery and sharing
Google Maps API for location-based services
PayPal API for secure payment processing
- Q8. How would you change the format of all the phone numbers in 1000 static html pages?
- Ans.
Use a script to iterate through each HTML page, locate phone numbers, and update their format.
Write a script using a programming language like Python or JavaScript to iterate through each HTML page
Use regular expressions to locate phone numbers in the pages
Update the format of the phone numbers as needed (e.g. adding country code, changing separators)
Save the updated HTML pages with the new phone number format
- Q9. If you had an opportunity to design the Google Suggest system, please let us know how you would approach it and how you would execute the plan in terms of settings up systems like(data stores or databases,...
- Ans.
Designing Google Suggest system
I would start by analyzing user search patterns and frequently searched keywords
Then, I would create a database of these keywords and their associated search results
I would use indexing services to quickly retrieve relevant results for each keyword
I would also implement machine learning algorithms to improve the accuracy of suggestions over time
- Q10. How do you find out if a number is a power of 2? And how do you know if it is an odd number? Write code in the language of your choice
- Ans.
Check if a number is a power of 2 and odd.
To check if a number is a power of 2, use bitwise AND operator with the number and its predecessor. If the result is 0, it is a power of 2.
To check if a number is odd, use modulus operator with 2. If the result is 1, it is odd.
Example code in Python:
def is_power_of_two(num):
return num & (num - 1) == 0
def is_odd(num):
return num % 2 == 1
- Q11. How will improve the revenue of the cafeteria of the office.
- Ans.
By introducing new menu items, optimizing pricing strategy, and improving the overall dining experience.
Conduct a survey to understand the preferences of employees
Introduce healthy and affordable meal options
Offer discounts for bulk orders or loyalty programs
Partner with local vendors to source fresh ingredients
Improve the ambiance and seating arrangements
Implement online ordering and delivery services
- Q12. [Actual question which i screwed up. Bad Time for me]Number of users in 2001 for adwords, chrome, gmail, android and picassa are in the ratio of 6:9:14:13:8, and in 2004 we add 3 lakh more users. New rati...
- Q13. In google adwords there are about 30 million ads from 42 lanuages . What will I do review the ads and reject ads that do not comply with specific rules
- Ans.
Reviewing 30 million ads from 42 languages in Google AdWords and rejecting non-compliant ads requires a systematic approach.
Create a set of specific rules and guidelines for ad compliance
Use automated tools to filter out ads that violate the rules
Assign a team of reviewers to manually check the remaining ads
Ensure that the reviewers are fluent in the languages of the ads they are reviewing
Regularly update the rules and...
Interview Preparation Tips
Experience: I was asked to take the test at 8.30 pm. They fixed this test, a week back. Nobody will call you to remind you to take test. Nor the interviewer will call you. It is your responsibility to check ur mail without fail. On that day I was expecting a call from google from evening till 8.25 pm. None called me. I thought that they would have forgot that. I planned to do go out and have food. But suddenly my ipad gave a alert message and it was from gmail app [thanks for ipad, or else i would not have checked my mail in lap top]. It was from google recruiter. The mail stated that he has shared a doc with me and i must answer the questions in it. a google drive link was given. he mentioned that the test was for 2 hours. I was asked to type answers just below each of these questions.
Duration: 120 minutes
Round: Technical Interview
Experience: Since I had prepared for tech interviews like amazon, I was able to do it good.After a week I got a call from HR and informed that I cleared the first round. Then after two days I was told that i will have a telephonic interview with one of the google developers from adwords team . They scheduled a telephonic interview the next week
Round: Technical Interview
Experience: 1) How will improve the revenue of the cafeteria of the office. Lots of discussions went and i think, i really did that well.
2)[Actual question which i screwed up. Bad Time for me]
Number of users in 2001 for adwords, chrome, gmail, android and picassa are in the ratio of 6:9:14:13:8, and in 2004 we add 3 lakh more users. New ratio is 8:12:13:11:6. Number of picassa users in 2004= 1,44,000. Calculate number of adwords users in 2005.A basic math question that, even a school student can solve. But in that tension i was not able to do it. I took some time and finally gave him a answer. I myself knew that it would be wrong. But interviewer said great lets move on to next question[just to boost up me - good person].My actual job role revolves around developing tools for the the ad review team which will review the ad and reject illlegal ones. So third question was related to that .He told me that as I am from a tech background, I need to explain him technically wat will I do. He also said that he did not need the actual solution. They will just see the way I approach the problem. That an existing problem and they are open to suggestions.3)In google adwords there are about 30 million ads from 42 lanuages . What will I do review the ads and reject ads that do not comply with specific rules .Regarding the criteria under which google bans a ad as illegal – I discussed about different criteria .Out of the criteria’s i told , he asked me to consider only three criteria .
a) Link not working
b) Drug related ads
c) trademarks[trademark used by the companies]I gave lot of approaches like for link not workinga) designing a autobot which will automatically click ads link and check whether it is redirecting to correct page or not . Autobots are used by hackers to get money for the ads they posted . I suggested that by designing similar autobot we can validate the link.b) to check drug related ads -
To detect the language we can first check the geographic location from which the ad is getting posted and can narrow down to some less choices from which we can detect the language
i suggested him that we can create a trie which some specific keywords (like coccaine ) and do pattern matching with that and reject the add it contains any of the works in trie .The interviewer gave me another constraint wat if there comes a ad “coccaine rehabilitation center” we should reject those kind of ads na . thats for a good cause . So i suggested him that i can maintain another set of trie which can contain those set of keywords.Fist check trie1 if drug related keywords exist .
Next check trie 2 if other types of keyword exist.
– if keyword only present in trie1 [reject ad]
– if both tire return true [can reject . but its better that those ad's alone can be subjected to manual evaluation for rejection].I used trie as it can do the pattern matches faster .For trademarks also I discussed using similar datastructures and the interviewer was ok with my answer.
General Tips: I applied for a job in Google jobs page. I know that its very difficult that a resume gets noticed by google.Suddenly one fine day i got a call from Google HR saying that they are interested in my profile and asked me if, i was ready to go with the interview process[Come on! who will say no for Google]. I was surprised.I was asked to take a initial screen test [Online test].
Skills: data structure, Algorithm
College Name: na
Skills evaluated in this interview
Interview Questionnaire
7 Questions
- Q1. Image data structure: An image(square image) can be stored as a tree: A node is white if the image is white, is black if the image is black, and is mixed if it contains both. White and black nodes are leav...
- Q2. There is a dictionary containing words in sorted order. These words consist of some alien alphabets. Using the dictionary, find out the ordering between the alphabets. For eg, if English was the alien lang...
- Q3. A / b c / / d e f g Print the nodes in the following order: a, b, c, g, f, e, d, h, i, j, k, l ,m, n, o and so on. Which all data structures are used? Can we use just 1?
- Ans.
Multiple data structures are used to print nodes in a specific order. One data structure cannot be used alone.
The given order suggests a depth-first search traversal of a tree-like structure.
A stack can be used to keep track of the nodes to be visited.
A queue can be used to store the children of a node in the order they are visited.
An array can be used to store the nodes in the required order.
A linked list can be used ...
- Q4. Given 2 strings like bangalore and blr, return whether one appears as a subsequence of the other. The above case returns true whereas bangalore and brl returns false
- Q5. Given n pens and n tops, each pen (and each top) having a size different than the other and each pen fitting exactly one top, find the largest pen using minimum number of comparisons. A comparison involves...
- Ans.
Find largest pen using minimum comparisons with tops.
Divide pens into two groups and compare largest pen from each group with largest top.
Repeat the process with the group containing the largest pen until only one pen is left.
The remaining pen is the largest pen.
Total number of comparisons required is 2n-3.
- Q6. Given n dice, each of 'a' sides and a sum b, return the number of ways in which the sum b can be obtained. How can you reduce the time complexity and space complexity?
- Ans.
Given n dice with 'a' sides and sum b, return no. of ways to obtain b. Optimize time and space complexity.
Use dynamic programming to reduce time complexity
Create a 2D array to store the number of ways to obtain each sum for each number of dice
Use rolling arrays to optimize space complexity
Example: n=2, a=6, b=7 -> 6 ways to obtain sum 7
Example: n=3, a=4, b=8 -> 21 ways to obtain sum 8
- Q7. Given 2 machines, each having 64 GB RAM, containing all integers (8 byte), sort the entire 128 GB data. You may assume a small amount of additional RAM. Extend this to sort data stored in 1000 machines
- Ans.
Sort 128 GB data on 2 machines with 64 GB RAM each. Extend to 1000 machines.
Use external sorting algorithm like merge sort or quick sort
Divide data into smaller chunks and sort them individually
Merge sorted chunks using additional RAM
For 1000 machines, use distributed sorting algorithms like MapReduce or Hadoop
Ensure data consistency and fault tolerance in distributed sorting
Interview Preparation Tips
Experience: There was a preliminary test, wherein questions on discrete structures, data structures, algorithms, math (permutation, combinations, probability) and operating systems were asked. There was also a programming question to code (on paper). It took them around 3 weeks to shortlist students selected for interviews.
Round: Technical Interview
Experience: It took them about a month's time to announce results!
College Name: Veermata Jijabai Technological Institute, Mumbai [ VJTI ]
Skills evaluated in this interview
Interview Questionnaire
1 Question
- Q1. What do you know about company Education and other question Fluent in english is must
Interview Preparation Tips
Experience: Normal typing test and some aptitude question
Interview Preparation Tips
Experience: Quizzed on opinions of the Construction Industry.
General Tips: 1. Be prepared on the courses and project works that you mention in your resume2. Read newspapers, blogs about the construction industry and keep yourself updated
Skill Tips: """"
Skills: Infrastructure Planning, Infrastructure Management, Construction Management, Project Management
College Name: VIT Chennai
Interview Preparation Tips
Experience: Deloitte selection procedure involves a written test which is
same as CAT format (certainly not that tough). Though I had not joined any test series to prepare for it, but I must strongly recommend that you should actually join a test series (provided by Career Launcher or
TIME). This test series will actually help you to synchronize your mind to the format and moreover it would help to refresh the question solving skills which you used to exercise while preparing for JEE.
Round: Group Discussion
Experience: general topic is given (mostly it is as to how you would go for implementing a new type of technology in a company, and hence you all have to decide the stepwise procedure for the implementation), then whole of the group is called in presentation room where each one is told personally to speak about the same topic as that of GD. This constitutes
second round. Finally, if you clear it, you get to face the interviews.
Tips: From now onwards, start reading newspaper daily. Just give at least one hour reading the editorials from newspaper and make it your habit. Not only for GD's, but for life in general, its very important that you should have a certain view about things happening around you and in the world and newspapers are the best thing which help you form your views and also know about the expert opinions on day to day topics. So, make sure that you read newspaper daily.
Round: Other Interview
Experience: For interview, main thing is that you should be well conversed about everything you have mentioned on your resume. So, before you go for any interview, just make sure that you can speak about for 5 minutes on
every single thing in resume. Deloitte is a company which is open for all the btech students and hence its mainly looking for the students who have a right attitude and are good at their interests.
Tips: have a perfect set of communication skills. I had not done
any special type of preparations for the interview or group discussions but all these skills actually developed during these years. I would advise that in order to gain more confidence at speaking, you should start taking challenges from now on and should actively participate in any sort of debates and GD.
College Name: IIT Roorkee
Interview Questionnaire
8 Questions
- Q1. Asked about basic infrastructure Planning questions
- Q2. Why do you think Infrastructure in India is a high growth sector ?
- Ans.
Infrastructure in India is a high growth sector due to increasing urbanization, government initiatives, and foreign investments.
India's urban population is expected to reach 600 million by 2030, leading to a demand for better infrastructure
The government's initiatives like Smart Cities Mission, Bharatmala Project, and Sagarmala Project are driving infrastructure development
Foreign investments in infrastructure projects...
- Q3. How much Foreign Direct Investment is coming into India ?
- Ans.
India received $64 billion in FDI in 2020-21, a 10% increase from the previous year.
India is one of the top FDI destinations in the world.
Major sectors attracting FDI include services, computer software and hardware, and telecommunications.
Singapore, Mauritius, and the United States are the top sources of FDI in India.
The Indian government has implemented various policies to attract more FDI, such as liberalizing FDI n
- Q4. Tell us about yourself
- Ans.
I am a highly motivated and experienced professional with a passion for problem-solving and teamwork.
I have a degree in computer science and have worked in the tech industry for 5 years.
I am skilled in programming languages such as Java, Python, and C++.
I have experience leading teams and collaborating with cross-functional teams.
I am a quick learner and enjoy taking on new challenges.
In my free time, I enjoy hiking an
- Q5. Why Finance ?
- Ans.
Finance is a crucial aspect of any business, as it helps in managing and allocating resources effectively.
Finance helps in making informed business decisions
It helps in managing cash flow and allocating resources effectively
Finance plays a key role in determining the financial health of a company
It helps in raising capital for business expansion and growth
Finance also involves risk management and financial planning
- Q6. Why Deloitte and not other consulting firms ?
- Ans.
Deloitte's reputation for innovation, global reach, and diverse expertise sets it apart from other consulting firms.
Deloitte has a strong focus on innovation and technology, which allows them to provide cutting-edge solutions to clients.
Deloitte has a global network of offices and professionals, which enables them to provide services to clients in various regions and industries.
Deloitte has a diverse range of expertise...
- Q7. Why would you not take up a finance job when that is your passion ?
- Ans.
I would not take up a finance job if it does not align with my values and goals.
Passion alone is not enough to sustain a fulfilling career.
I prioritize finding a job that aligns with my values and goals.
If a finance job does not align with my values and goals, it would not be a good fit for me.
For example, if I am passionate about finance but also value work-life balance, I may not take up a high-stress finance job tha...
- Q8. Can you tell us more about your background ?
Interview Preparation Tips
Tips: Have a well prepared resume that suits for the role you are applying for.
Round: Technical Interview
Experience: They asked me a lot of questions based on my resume. I had done a lot of projects and courses related to Finance. I infact wanted them to ask me questions related to that as i was very well prepared. I told them about my passion for finance and the director who was from IIM Ahmedabad started asking me questions related to that. That i answered pretty well.
Tips: Be good at what you do. Prepare all your resume points in detail. Theres no excuse to that. Doesnt matter if its related to the profile you are getting interviewed for.
Round: HR Interview
Experience: Except the background and about me I was asked more so of why I was not applying for a finance company and why only Deloitte. I was frank and told them that because of the recession ( euro zone debt crisis at that time ) very few companies came on campus. Hence Deloitte. But also explained them that I liked Deloitte Consulting profile as well because of the kind of work profile it offered.
Tips: Be honest and clear about what you want. They can easily catch you otherwise if you are faking or not.
Do not be hesitant to tell them why you really like them - it could be the work profile / money / etc or a combination of these.
General Tips: Be calm and Cool ? - No. You cant be i think if you are serious about getting placed. [ I feel ]
Prepare smartly ! The more the hardwork, higher the chances of getting your dream job. Many think that it just goes waste but I feel that more than the interview and getting a job you develop a lot of skills under that placement pressure and you should be very positive about it.
Many of the people just chill out completely after placements even if they get a job they dont like.
NEVER GIVE UP ! You spend 70 % of your life at work, hence do not compromise or settle for less. You will regret later on that you did not try enough.
I did get into JP Morgan - Equity Research after Deloitte :) Its a separate story that I left that company as well in 4 months and started www.AmbitionBox.com :P
Skill Tips: Most of them you would know but revise well before the interview so that you dont get stuck anywhere while answering. You should at the bare minimum know the very basics of Finance, Infrastructure planning and Management and Bidding. Also it depends on the coursework you have done. The interviewer might ask you questions related to that.
Skills: Communication, Infrastructure Finance, Financial Modelling, Infrastructure Management, Project Bidding , Valuations, Cost Analysis
College Name: IIT MADRAS
Motivation: The profile was good. But frankly that time since i was more inclined towards finance I wanted Bombay as my location being the financial capital and the office at 30th Floor excited me :) Also there were a lot of investment banks in the new Indiabulls Office building, I just thought I could apply off campus there and get in. In retrospect all this sounds very immature. Net net it was all worth it to help me decide what i really wanted :)
Funny Moments: After being rejected and told over qualified by Credit Suisse and Nomura backing off from placements at IIT Madras because of slot issues I was directly going to sit for UBS Verity.Had prepared the least for this company. Had not changed my resume for the profile it offered. Was not well dressed. ( Not that its VERY important ) Did not prepare anything much. Had given the interview in the most causal way. But against all odds someone had already decided that this was the company i would get placed in - DESTINY ! Felt very strange at that time because had prepared really hard for other companies.
Conclusion - After seeing a lot of my friends getting placed and reading a lot of reviews on AmbitionBox of seniors - 70% of the people get placed in companies they least expect to get into :)
PS: Doesn't mean you stop trying :) Keep trying ! There's immense satisfaction when you get something you truly wanted after a lot of Hard and Smart Work !
All the best ! Most of the advice we give at AmbitionBox and that you probably get elsewhere are just hints to solve the equation and not the solutions themselves. So make your own recipe for success.
Hope this helps :)
Interview Questionnaire
4 Questions
- Q1. Tell me about yourself?
- Q2. Why should we hire you?
- Q3. Tell us ur strengths and weaknesses?
- Q4. Any questions?
- Ans.
Yes, I have a few questions.
Can you tell me more about the company culture?
What are the main responsibilities of this role?
Are there any ongoing projects I would be involved in?
What is the typical career progression for a business analyst in this company?
Interview Preparation Tips
Experience: 1.Start by telling ur name, your family background, ur strengths and weaknesses, likes dislikes, about ur schooling. A brief introduction about yourself.Smile. :)2.Tell them the qualities which you possess, without getting nervous, tell them that you believe in "Vision and then Action" to complete all your tasks. Try to convince them with the fact that you and ur skills completely match the job profile.3.Start with your strengths. Don't exaggerate ur weaknesses. An apt answer could be "Icecreams, chocolates", depending upon the mood of the interviewer. Another answer could be, "I believe in perfectionism".4.Ask some questions related to the organization. Try to show them that u are keen and interested to join their organization. :) Listen attentively while they speak :)
Tips: No need to exaggerate. They don't have to do much with ur family background nd all..Put up everything in brief.Never ask about the perks,salaries and all.
Round: Group Discussion
Experience: Mainly, you need to have sufficient knowledge about the topic that has been given to u. For that, read newspaper, search Google and latest newsfeed.
Tips: Never interrupt, wait for ur turn. Try to conclude the topic by summing up all the points. Sometimes it may happen that someone else may speak the points which you were about to speak. Do not panic in that case. Try to modify the same point in a different way. Smile :)
Duration: 10 minutes
General Tips: 1.Believe in yourself2.Have faith in GOD3.Be confident and clear4.Do not panic 5. Never try to show your nervousness
Skills: Communication skills, Confidence
College Name: KIIT UNIVERSITY
Motivation: You never lose. Either you win or you learn :)
Funny Moments: Nope. Nothing :)
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