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6. Difference between object oriented and object based languages?       Object oriented means everything is an object, they could have all the features of object such as inheritance, implementation of interface. But object based lang means it only uses object idea, it may not let you to create your own object. 7. Multiple inheritance - objects contain howmany multiply inherited ancestor?     Java allows only one inheritance, but lang such as C++ allows multiple inheritance which means one class could inherit the behavior on many parent classes. 10.Is java a pure object oriented language? Why?       Java is not pure OOL, it still maintains some primitives such as int, char 11. Order of constructor and destructor call in case of multiple inheritance     The order of constructor is from base to current which means the constructor of the parent class will be called first, which is the opposite for destructor. ...

面试职位: LinkedIn Operations Engineer 时间： 5:00 pm Pacific time 对着个职位几乎不了解，短短20分钟的 非常准时，问了一些简单的backgroud 问题 对哪些职位感兴趣 为什么选择linkedin Rate your skill of Programming language on a 1-10 base 主要使用Python, python 评几分 愿意不愿以relocate to Bay area 我问了他operation engineer 做什么？ 他说主要是网络维护，所以我TCP/IP Java 方面的skill 很重要

1. What are static variables? Static variable in a function only remain one copy of itself. Static variable in a module can be used by any function in the module Static function can only be called in its class 2.  What are volatile variables? Volatile variables may change its value unexpectedly in the program. The program will check its value every time, it tries to use it. If a variable is not volatile, the program may keep a copy of the var in its cache. 3. What do you mean by const keyword ? A constant variable is a read only variable. You cant change its value else where except initialization. 4. What is interrupt latency? Interrupt latency is the time between the generation of interrupt and the time for interrupt  handler  to process it. 5. How you can optimize it? We may use polling and message passing for interrupt to handle interrupt immediately. 6. What is size of character, integer, integer pointer, character pointer? The size of character i...

Question:  In what ways do the authors optimize connection management? Remote Procedure call is useful to pass control and data between different programs on different machines. Cedar Programming Environment is the network env used in the research. Dominant language: Mesa Message passing is a good alternative, but since RPC is major control data transfer mechanism, this paper chose RPC RPC binding: Define how the calling machine application (importer) find the callee machine application(exporter). A database called Grapevine (like a DNS which exporter registers to and importer will call) is used for RPC binding.