阿里面试集锦及最优解答
Java 源码探究及中间件..............................................................................................1
一、红黑树的特性....................................................................................................2
二、HashMap 和 HashTable 的不同点....................................................................2
三、ConcurrentHashMap 为什么比 HashTable 性能好..........................................3
四、ClassLoader 的分类及加载顺序.......................................................................5
五、数据库事物特性及隔离级别............................................................................7
⑴原子性（Atomicity） .......................................................................................8
⑵一致性（Consistency） ....................................................................................8
⑶隔离性（Isolation）..........................................................................................8
⑷持久性（Durability） .......................................................................................8
1，脏读..................................................................................................................8
2，不可重复读 .....................................................................................................9
3，虚读(幻读) .......................................................................................................9
六、常用的中间件：Redis 、zookeeper、MQ、dubbo 等.................................10
七、GC 算法、垃圾收集器 ...................................................................................10
对象存活判断......................................................................................................10
垃圾收集算法......................................................................................................11
垃圾收集器..........................................................................................................15
常用的收集器组合..............................................................................................25
八、TCP ..................................................................................................................26
三次握手..............................................................................................................26
四次挥手..............................................................................................................27
滑动窗口..............................................................................................................31
九、HTTPS .............................................................................................................36
十、CAP 原则.........................................................................................................37
介绍......................................................................................................................37
理论......................................................................................................................37
与可用的决择......................................................................................................37
与 NoSQL 的关系 ...............................................................................................38
与 BASE 的关系 .................................................................................................38
十一、一致性哈希..................................................................................................38
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