Architect Interview Questions

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J.P. Morgan
Software Architect was asked...31 December 2013

How do you approach situations where multiple influential employees have different (and possibly hidden) agendas.

10 Answers

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Amazon

Most questions are built around Amazon's 14 principles.

6 Answers

No!! Who’s said leaders are right always at Amazon?? I was there for a couple years and months leadership is never right at Amazon don’t blowing out people mind here at Amazon they always need one things and only one things how you can helping us to makes more money if you got an idea bringing in it but that idea supposed to an idea where they can using it to makes money not spending money Less

At Amazon they always said customers first I would like to asked those people who came here and said leadership bla,bla,bla what’s leadership for those people? Leadership means responsibility and respect and also determination at Amazon as I said they only got one things in head makes money in any condition that money suppose to get in period! I would love to asking those people who’s came here and talking about leadership inside amazon building if they never and ever took theirs time to read customers reviews on the kind of products than amazon selling on their website!! Please watching news ok and we gonna heard about amazon Less

There are Amazon employees giving tips on blind for the interviews. teamblind.com Less

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Amazon

Below are some of the questions I could remember that they asked. Hope it helps What is CIDR block and what do you use it for Troubleshoot a webpage that can't access the DB Troubleshoot why you can't access a webpage server What is DOS/DDOS and how to mitigate this What is CDN and why is it important who would setup the CDN What is database indexing and why is it important Difference between NOSQL and RDBS Difference between object storage and file system Difference between Asymetric and symetric crypto Whats a three tier web page architect,and how do you monitor to see a bottleneck and how do you improve it How would you design an e-commerce web page and how would you improve it What is MSA If you collected logs and wanted to store them for 14 days then move them over to permanent storage for a few years how would you do this How would you analyze objects stored in S3 and share them with users What ports do databases use Difference between IOPS, Throughput, and Latency What is a web application firewall and how do you use it, what layer is it on How would you monitor utilization of equipment in a datacenter How do you secure a web site How would a developer make an API friendlier Of the 14 principles which one do you relate with mostly and use at work, Which one do you not agree with

5 Answers

CIDR - Classless Inter-domain Routing, Which replaced the old class based IP addressing scheme based on A,B & C. CIDR has 2 parts a network Address (samel like normal IP address) followed with a subnet prefix. the subnet prefix decides how many bits of the IP address has taken for network. and rest will be allocated for the subnet. Less

DoS- Denial of Service DDos - Distributed Denial of service. AWS Shield will provide protection for CDN and S3 from DDoS attack . Less

IOPS - Input and output per seconds - measure the capacity in terms of the number request can be served in a second. Throughput - The volume of data that can be handles and measured in MBPS Latency - is the time between a request and response. Less

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Woods Bagot
Architect was asked...26 November 2013

What softwares do you use?

5 Answers

Auto cad , 3dmax , Photoshop , Indesign , Google sketchup , lumion renderer , vary renderer and office desktop . Less

Sketchup, photoshop, illustrator, indesign and archicad

AutoCAD, ArchiCAD Photoshop Artlantis Lumnion

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American Express

How you inherit the properties of two classes (not interfaces) in a child Java class. Where as those two parent classes are not related and not of any inheritance relationship between them.

4 Answers

My answer is, unlike other OO languages like C++ multiple inheritance is not possible in Java, and interfaces can be used to achieve this with specific implementation. The interviewer is not convinced with this. Less

The answer is composition inheritance. It's not as convenient as implementation inheritance (extends keyword) but creating an instance of the parent object and making the child manage/expose necessary members. Probably be a good idea to create an interface to keep things. Less

You would be using the Adapter Design Pattern.

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DEKA Research and Development

Having and scale and 9 equally shape and color with only one being slightly heavier than the rest, find the heavier ball with minimum number of interactions.

4 Answers

The solution is to divide in 3 groups of 3 balls each and and weight them.

took me 20 seconds to solve. Divide the 9 into 2 groups of 4 and one aside. If the weight is the same for the 2 of 4 the one out is the heavier. If one group of 4 is heavier you know that one group has the heavier element. Divide that 4 into 2 of 2 and measure again. The heavier group of 2 has the heavier element. Measure each one now. Less

Correction to my solution.The last step only measure ONE of the two. The weight should be 1/4 of the group of 4. So this eliminates the need to do 2 more measures. So total we will have either 1 measure only because the one left out of the first measurement was the heaviest OR 3 to find final. Less

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Amazon

Describe what happens at Layer 2?

4 Answers

The second layer is the Data link layer. It is that layer that operates with switches. this is also the layer that works with MAC addresses. This layer transfers data between adjacent network nodes in a wide area network or between nodes on the same local area network segment. Less

The second layer of the OSI model would be the Data Link Layer which consists of two additional layers - MAC - Media Access Control and Logical Link Layer. Logical Link helps provide flow control, acknowledgment and error notification and the MAC Layer is a fancy way of 'access control'. If you are a 'Star Trek The Next Generation' fan one easy way to describe this layer is the universal translator in the TNG universe. It would essentially translate digital requests into ones their physical counterparts can understand. The same way language would seem to magically pass through this device to the physical data link layer and then, in turn, tell it how to communicate with your brarin and then back out without your needing to know. Less

The second layer is the Data link layer. It is that layer that operates with switches. this is also the layer that works with MAC addresses. This layer transfers data between adjacent network nodes in a wide area network or between nodes on the same local area network segment. Less

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Amazon

The 1st telephonic interview was around technical question from applications to storage. TCP vs UDP , NAS vs SAN , RAID 5 vs 0+1 , Firewalls , Hypervisor , Load Balancer , Containers, Dockers,Pupper Shef , CDN , Map reducer , big data , SQL vs NO SQL , Router , Switch , OSI model , development tools , unix shell scripting , tuning rdbms , running application , tuning I/O , SOA , Continuous Integration , Continuous deployment , Monolithic application , loosely coupled application , Cloud security, Encryption , dedup, WAN optimization For 2nd telephonic it was mainly focused on example based like Give me an example where you have done something which no one has done , give me an example where you have failed , give me an example where you went out of your charter/comfort zone to help someone , give me an example where you have handled a difficult customer and how you have handled it , what have u learn new lately and how you have implemented it , Next was face2face onsite for whole day it started with presentation/white boarding then one technical and four example based interviews , in a few example based interviews they might ask you to do a architecture white boarding

4 Answers

the techround in face2face round was more or less same like the phone screen . They expect the SA should have knowledge on all the areas plus depth in 1-2 area. If you have depth in 1-2 area they are going to go deep in that. It make sense to tell them initially that your expertise is in which area so that they can go deep into the same Less

HI, I just took my first interview with Amazon and I was asked to come for second interview. In the email, HR asked me to prepare more or less same way I have prepared for the first interview. I was wondering if you could give me insights about the second and third interview? I am coming from non-software background, it is more or less based on telecommunications and networking. If I am called for on-site interview, did you happen to do coding problem on site? Your insight would be highly appreciated. Less

Its very important that you learn the 14 amazon leadership principles , your example based answers should reflect them also try to learn their offering , if possible complete the aws solution architecture training since it helps in white boarding Less

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Crossover for Work

A bunch of shapes with patterns, like Tetris and you are required to find the next shape in the puzzle sequence

4 Answers

Based on the fact that you only have 15 minutes to complete the test, it's not advisable to try and find the correct pattern because while you'll find that pattern, you'll be running out of time to do other questions, which will result in a FAIL for you, The most important thing in this step is your guessing ability and ability to guess right Less

Both times i tried, i got into top 7% with CCTA test. The only thing that bothers me is presence of Qs that require really good English level (C2+). I didn't know meaning of words "inculpate" or "denounce". This is the strange part of this test. This is unfair to compare engineers that are non-native speakers with ones that are and decide on their cognitive abilities based on knowledge of some rare words. Less

If you need help passing the CCAT (hardest part of the process in my opinon) I passed it by studying ruthlessly. I found this site that has the same CCAT as crossovers and just took that a bunch of times. crossoverccat[DOT]com I recommend this for anyone that has the proctored CCAT coming up. The salary is $15 / hr which is really good in my country. 40 hours a week min/max. Less

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Al Ryum

When are you available?

4 Answers

As soon as possible

I can any time tomorrow or after tomorrow

As soon as possible

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