揚智科技筆試題和面試題答案目

　　以下收集的題目是揚智科技筆試環節最常考的，你能做對多少呢？大家也來練一練吧！
　　1. Insert a sequence fo keys(24,49,13,20,59,23,90,35) into a data structure, which has no keys initially. Depict the data structure after these insertions, if it is:

　　 a heap tree

　　 an AVL tree

　　2. Queue is a useful structure

　　 What is a queue?

　　 Write 5 operations or functions, without details, that can be done on a queue.

　　3. What is a synchronous I/O bus?

　　 What is an asnchronous I/O bus?

　　 Compare the advantages and disadvantages of synchronous and a synchronous I/O bus.

　　4. Explain the following terminology:

　　 Baud rate

　　 Handshaking

　　 Memory mapped I/O

　　5. Explain the key issues in supporting a real-time operation system for embedded system.

　　6. Explain the mapping of visual addresses to real addresses under paging by

　　 direct mapping

　　 associative mapping

　　 combined direct/associated mapping

　　7. Please explain what is “write-back” and “write-through”, and discuss the advantage and disadvantage about these two methods.

　　8. Explain the concept and benefit of threads

　　9. What is hardware interrupt? What is software interrupt? What is exception? Please tell me all you know about interrupt.

　　10. Write a recursive function that tests wether a string is a palindrome. A palindrome is s string such as “abcba” or “otto” that reads the same in both directions.If you can write this function recursively,you can write an iterative version of this function instead.

　　11.什么是進程(Process)和線程(Thread)?有何區別?

　　12.MFC和SDK有何區別?

　　13.IRP是什么?有何作用?

　　14.Windows 2000操作系統下用戶模式和內核模式下編程有何區別?

　　15.驅動程序的BUFFER能swap到磁盤上去嗎?為什么?

　　16.試編寫3個函數實現

　　(1)建立一個雙向鏈表

　　(2)插入一個節點

　　(3)刪除一個節點

　　17.簡述Hardware interrupt和software中斷的區別，簡述其應用。

　　18.試編寫一個函數，計算一個字符串中A的個數。

　　19.畫出其相應流程圖并編寫一個函數實現一個整數到二進制數的轉換，如輸入6，輸出110。