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  • hi welcome to life Google's video about

  • how to prepare for technical interview

  • i'm sean technology and engineering

  • recruiter I'm Allison I'm a software

  • engineer

  • i'm jess i'm also a software engineer

  • although this video is going to focus on

  • the technical interview definitely check

  • out our partner video on how to prepare

  • for the business internview as well. it

  • absolutely applies here without further

  • ado let's get into some tips

  • first things first make sure you're

  • ready to prove what's on your resume

  • we're going to want some critical pieces

  • from you including the bread and butter

  • of software engineering data structures

  • well you could argue with me on that

  • data structures and algorithms so we

  • want things like hash tables stacks

  • arrays as well as algorithm space and

  • time complexity we also want things like

  • be prepared to code on a whiteboard this

  • is very different from coding on a

  • computer so it's highly recommended to

  • go out find a whiteboard or a chalkboard

  • and try coding something up

  • it's a little different and finally we

  • want to make sure that your brush up on

  • system design as well as object oriented

  • programming in general you want to show

  • your problem-solving skills to the

  • question you are asked if it's a coding

  • question providing efficient code a

  • short time frame is key if its design

  • question work with your interviewer to

  • create a high level system and if

  • applicable delving into deeper issues if

  • it's a general analysis question

  • sure you understand all aspects of the

  • problem and if necessary offer multiple

  • solutions discussing the relative merits

  • in the end the interview want to know if

  • they'd be comfortable working with you

  • on

  • specifically you should focus your

  • preparation in the following areas

  • coding so you're gonna spend the

  • majority of your time actually writing

  • code in the interviews we do ask that

  • you are pretty familiar with at least

  • one coding language and typically will

  • interview you in C++ or Java you may use

  • Python RC in different projects here you

  • will be expected to know api's

  • object-oriented design and programming

  • how to test your code and you want to

  • come up with corner cases and edge cases

  • for yours and other people's another big

  • thing is algorithms i mentioned this in

  • the beginning and it's coming up again

  • because surprised it's important

  • alright so you also want to know how

  • complex your algorithm is remember time

  • and space complexity as well as how to

  • improve or change it if you give me an O

  • of n algorithm and then you give me an O

  • ven factorial or over n squared and you

  • tell me it's better this is going to be

  • a little awkward so another thing if you

  • get a chance to study up on other

  • algorithms like Dykstra's or a star

  • it'll probably help you to something

  • incredibly important candidates with

  • three or more years of industry and

  • experience should have hands-on testing

  • experience if you have less than three

  • years at within the industry

  • we're just going to test you for your

  • testing aptitude you can expect

  • questions such as how would you unit

  • tops the code you write what interesting

  • inputs are test cases can you think of

  • and we may also ask you to design and to

  • end integration loaded performance or

  • even security tests for real-world

  • systems such as Gmail for example data

  • structures so you should study up on as

  • many data structures and algorithms is

  • humanly possible you should know some of

  • the most famous classes of NP complete

  • problems like the travelling salesman in

  • the nap sock you should definitely be

  • able to recognize some of these very

  • famous questions when asked in a

  • slightly different way

  • also try and find out what np-complete

  • actually means you should absolutely no

  • trees some basic reconstruction

  • traversal and manipulation algorithms

  • hash tables stocks arrays linked lists

  • so

  • also math some of our interviewers will

  • ask basic discrete math problems

  • don't worry they will be very relevant

  • counting problems probability things

  • that happen in everyday life

  • so before you come and spend some time

  • refreshing your memory on these things

  • or learning the essentials of

  • probability theory and combinatorial 6u

  • should be pretty familiar with n choose

  • K problems and like recursion many

  • coding problems involved thinking

  • recursively and maybe coding a recursive

  • solution prepared for recursion which

  • can sometimes be tricky if not approach

  • properly practice some problems which

  • can be solved iteratively the more

  • elegant solution is recursion operating

  • systems you should understand processes

  • threads as well as concurrency issues

  • and everything related to that such as

  • semaphores new Texas locks things like

  • that you should also understand resource

  • allocation so what resources a process

  • or thread might need another thing

  • context switching just brush up a little

  • bit on that understand that it's

  • initiated in the and the operating

  • system and underlying hardware and then

  • one last thing

  • maybe you might want to know a little

  • bit about how scheduling works system

  • design Kevin's have been in the industry

  • for more than five years should have

  • experience with system design these

  • questions are used to see your ability

  • to combine knowledge theory and judgment

  • towards solving a real world problem

  • sample topics include feature sets

  • interfaces class hierarchies distributed

  • systems and designing system under

  • certain constraints you should also have

  • an understanding of how the internet

  • actually works and be familiar with the

  • various pieces routers domain name

  • servers load balancers & firewalls also

  • understand the basics of houses

  • now that we've talked a little bit about

  • some of the knowledge areas that we

  • expect you to know we want to offer you

  • three final tips to really be successful

  • in your first explain and clarify it's

  • extremely important to talk for your

  • thought process during the interview as

  • much better to say what you're thinking

  • to stay silent even if you're discarding

  • ideas along the way your interviewer

  • wants to know your thought process which

  • ideas you're not going to use and which

  • I do you finally settle on clarifying

  • the question is also important that most

  • of the questions that you are

  • intentionally big because the

  • interviewer wants to know what questions

  • you would ask if you're in a real-world

  • solutions that have a question

  • an example of a question you can ask for

  • clarifying is are there any time or

  • space complexity requirements

  • secondly we want you to keep thinking we

  • know this is really strenuous and

  • arguing is really long but the first

  • solution that you come up with might not

  • be the most elegant so we encourage you

  • to keep thinking through the problems

  • think about your current solution and

  • how you could potentially improve it

  • finally practice make sure that you

  • practice physically writing your code

  • you won't have an editor

  • no color code for comments no auto crack

  • be sure to test your code be sure that's

  • easily readable without bugs fine

  • problems right code solvent there's no

  • better way of practicing than actually

  • riding out code that's it for today and

  • so much for joining us

hi welcome to life Google's video about

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How to: Prepare for a Google Engineering Interview

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    chatarow 發佈於 2022 年 02 月 13 日
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