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  •   尽管不是每个问题都很值得作为面试问题出现,但是很多都值得去仔细想想。

      一个优秀的面试问题,尤其是针对Senior Engineer的面试问题,不应该仅仅是问某个api的用法,某个很容易从帮助中找到的内容。有发散性,可以基于问题进行扩展的问题才是一个比较好的问题。

      下面是一个非常长的问题列表,主要是关于面向对象设计,设计模式,以及一些实际工程中会用到概念,都是比较基本的,但是也非常能考察一个高级工程师的水平,因为会牵涉到非常多方面。

      另外要说明的是下面很多概念性问题可以直接从wiki维基百科上找到答案。另外我会标记出个人觉得比较值得问的问题。

      原文在这里 http://www.hanselman.com/blog/NewInterviewQuestionsForSeniorSoftwareEngineers.aspx

      # What is something substantive that you’ve done to improve as a developer in your career?

      有没有做过什么比较实质性的事情来提升你的程序员职业水平?

      好问题。我的回答:这个很难说,我的做法是坚持学习,坚持写技术类博客。

      # Would you call yourself a craftsman (craftsperson) and what does that word mean to you?

      不敢叫自己大师啊,那得多牛逼?!

      # Implement a using on .

      用某种语言在纸面上实现一个基本的数据结构。(用近似真实格式的伪代码来表达?)

      好问题。我的回答,找一本基础的数据结构书籍吧,比如这一本《数据结构与算法分析:C语言描述(原书第2版)》

      # What is SOLID?

      参考http://en.wikipedia.org/wiki/Solid_%28object-oriented_design%29

      这个solid不是说“结实的”,而是面向对象五大原则的简称:单一责任原则,开闭原则,莱西科夫替换原则,接口分离原则,依赖倒置原则。

      好问题。这几个原则的确应该背下来,太基础了。

      # Why is the Single Responsibility Principle important?

      为什么单一责任原则重要?

      好问题。我的回答,因为职责明确,设计就不容易混乱,即使有后续变化也是可控的。

      # What is Inversion of Control? How does that relate to dependency injection?

      参考http://en.wikipedia.org/wiki/Inversion_of_control

      实际中的例子,通知开会,一种可以打电话通知到每个人(这属于中心控制型的,必须有个controller/manager之类的);也可张贴一个告示,大家自己来看,这属于事件响应型的。

      # How does a 3 tier application differ from a 2 tier one?

      三层应用与两层应用的区别是什么?

      我只知道MVC三层应用。

      # Why are interfaces important?

      为什么接口重要?

      好问题。接口的重要在于消费者(客户端)不需要了解生产者(服务端)的细节,接口相当于合同,当合同不变的时候,谁生产如何生产都不是消费者关心的问题。

      # What is the Repository pattern? The Factory Pattern? Why are patterns important?

      关于设计模式的问题,

      第一个参考http://msdn.microsoft.com/en-us/library/ff649690.aspx

      工厂模式基本上是众人皆知的模式了。

      为何模式重要?我不觉得模式重要,模式的重要性在于让你能“喔!原来是这个”。但是对于一个没有几年编程经验的开发者而言,模式只能让你更混乱。

      设计模式很多情况下是通过加入一个抽象层来解决耦合之类的问题,但是层次越多越复杂,就好比单位中领导的级别越多越官僚一样。

      # What are some examples of anti-patterns?

      反模式?少用模式,多写点清晰的代码吧。

      # Who are the Gang of Four? Why should you care?

      四人组,名字叫不上来,但是他们是设计模式的总结者。

      # How do the MVP, MVC, and MVVM patterns relate? When are they appropriate?

      这也是微软特色,大家只要知道MVC就行了,其实大家现在用的都是MVC,但是由于水平高低,效果就是千差万别。

      啥MVP,MVVM我不知啊(也不是不知,只知道MVVM是wpf的一个概念,可我也不用wpf啊)

      # Explain the concept of Separation of Concerns and it’s pros and cons.

      参考http://en.wikipedia.org/wiki/Separation_of_concerns

      我也不是了解的很细。

      # Name three primary attributes of object-oriented design. Describe what they mean and why they’re important.

      封装/继承/多态?

      参考这里吧http://en.wikipedia.org/wiki/Object-oriented_programming

      学C++这几个概念是基础啊

      # Describe a pattern that is NOT the Factory Pattern? How is it used and when?

      不是工厂模式,我知道个单件模式。还有模板模式/facade模式/strategy模式,具体也要翻翻书,很少有意识的套用。

      # You have just been put in charge of a legacy code project with maintainability problems. What kind of things would you look to improve to get the project on a stable footing?

      第一步,先把代码用最大警告级别编译一遍,然后fix所有值得fix的warning。

      好问题。

      # Show me a portfolio of all the applications you worked on, and tell me howyou contributed to design them.

      如果光是看文档,很难说到实质上。

      好问题。

      # What are some alternate ways to store data other than a relational database? Whywould you do that, and what are the trade-offs?

      好问题,很多啦,内存/文件/云存储/nosql等等。tradeoff就看你的应用需求了。blabla。。。

      # Explain the concept of convention over configuration, and talk about an example of convention over configuration you have seen in the wild.

      好问题。

      我能想到的就是买车开车,很少有人买到车以后,拿着说明书调试这个那个,一般都是直接上路,因为汽车厂会给你一个比较不错的默认配置,也就是所谓的“方便”。

      这个方便也保证了你开其它车,基本上都差不多,不用重新配置或者学习什么。

      所谓方便”convention“就是把相对不错/比较普遍适用的配置都内置好了,用就是了。

      # Explain the differences between stateless and stateful systems, and impacts of state on parallelism.

      解释有状态与无状态系统,以及有状态系统在并行上的影响。

      好问题。这个说不好。有状态系统因为保持状态,并发运行时的访问/修改需要有锁同步机制。

      # Discuss the differences between Mocks and Stubs/Fakes and where you might use them (answers aren’t that important here, just the discussion that would ensue).

      跟TDD相关的问题。不会哦。

      # Discuss the concept of YAGNI and explain something you did recently that adhered to this practice.

      解释“YAGNI”。

      最简单的例子是当我们定义接口,会特意预留出一两个参数,说是为了将来使用,其实,没有将来。屁嘞!你根本不需要它!

      不是说不考虑可扩展性,但是要基于可预测的基础上。

      # Explain what is meant by a sandbox,whyyou would use one, and identify examples of sandboxes in the wild.

      比如把虚拟机比如vmware virtualbox作为沙箱,用起来可以隔离风险。大不了重启,或者删除之。

      # Concurrency

      * What’s the difference between Locking and Lockless (Optimistic and Pessimistic) concurrency models?

      * What kinds of problems can you hit with locking model? And a lockless model?

      * What trade offs do you have for resource contention?

      * How might a task-based model differ from a threaded model?

      * What’s the difference between asynchrony and concurrency?

      这些问题不错。并发相关的问题,设计多用户高性能系统必知。

      # Are you still writing code? Do you love it?

      我喜欢编程。

      # You’ve just been assigned to a project in a new technology howwould you get started?

      如果是我,先了解这个技术的风险。小心求证,尽量缩小使用范围,否则是很致命的。

      # How does the addition of Service Orientation change systems? When is it appropriate to use?

      不懂。

      # What do you do to stay abreast of the latest technologies and tools?

      我跟的很紧哦!

      # What is the difference between "set" logic, and "procedural" logic. When would you use each one and why?

      不懂要问什么。

      # What Source Control systems have you worked with?

      ClearCase.很难用。最近不少问题都是跟CC相关的。

      # What is Continuous Integration? Have you used it and why is it important?

      持续集成。这个概念跟TDD也挂钩。

      # Describe a software development life cycle that you’ve managed.

      涉及的还是传统模型,不是scrum型的。

      # How do you react to people criticizing your code/documents?

      批评没问题,但是要有道理有根据。

      # Whose blogs or podcasts do you follow? Do you blog or podcast?

      这就很多了,看我以前写的文章吧。

      # Tell me about some of your hobby projects that you’ve written in your off time.

      主要是Lua和Py的,appengine上的比较多。

      # What is the last programming book you read?

      最近看得是《C++ FAQs》中文版。翻译的一般,内容也比较陈旧。更坚定了我使用C风格的C++的决心。

      # Describe, in as much detail as you think is relevant, as deeply as you can,what happens when I type "cnn.com" into a browser and press "Go".

      尽可能详细深入的描述,当你在浏览器敲网址然后go后面的技术细节。

      好问题。很发散,绝对能看出面试者的技术厚度。

      # Describe the structure and contents of a design document, or a set of design documents, for a multi-tiered web application.

      # What’s so great about ?

      # How can you stop your DBA from making off with a list of your users’ passwords?

      # What do you do when you get stuck with a problem you can’t solve?

      # If your database was under a lot of strain,what are the first few things you might consider to speed it up?

      先profiling哦!

      # What is SQL injection?

      # What’s the difference between unit test and integration test?

      单元测试应该是程序员做。集成测试就牵扯到tester了。

      # Tell me about 3 times you failed.

      # What is Refactoring ? Have you used it and it is important? Name three common refactorings.

      我一直在重构自己的代码。

      # You have two computers, and you want to get data from one to the other. How could you do it?

      命名管道,socket,共享文件夹,路子还是很多的。

      # Left to your own devices,what would you create?

      # Given Time, Cost, Client satisfaction and Best Practices, howwill you prioritize them for a project you are working on? Explain why.

      这个很值得问。

      # What’s the difference between a web server,web farm and web garden? Howwould your web application need to change for each?

      # What value do daily builds, automated testing, and peer reviews add to a project? What disadvantages are there?

      都是为了提升代码质量,但是会延长工期。

      # What elements of OO design are most prone to abuse? Howwould you mitigate that?

      # When do you knowyour code is ready for production?

      看bug fix的统计曲线。

  • HR-1212
    2011-07-29 16:32 HR-1212
    第1楼 回到顶楼
  • HR-1212
    2011-07-29 16:32 HR-1212
    你好!我们公司正在招聘.net软件开发工程师,薪水范围:4K/月-10K/月,很期待同仁们加

    入公司的团队中,我的联系方式如下:

    QQ: 398988329

    Email: zhaopin_ZXHR@163.com

    公司网址:www.artmtech.com
    第2楼 回到顶楼
  • bei79
    2013-07-22 22:09 bei79
    真的是好题集,谢谢
    第3楼 回到顶楼
  • zhangguochao
    2014-05-16 16:17 zhangguochao
    不错真心不错
    第4楼 回到顶楼
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