2017阿里巴巴面试技术挑战题泄露

分享 we1312331 发表于 7 月前最后回复来自 CaseyMal 1 月前

1、编译程序的前3个阶段完成的工作是:【单选】
A:词法分析、语法分析和代码优化
B:代码生成、代码优化和词法分析
C:词法分析、语法分析、语义分析和中间代码生成
D:词法分析、语义分析和中间代码生成

2、在最坏情况下,下列排序方法中时间复杂度最小的是:【单选】
A:冒泡排序
B:快速排序
C:插入排序
D:堆排序

3、常见HTTP请求返回的状态码中,表示Forbidden(资源不允许使用)的是:【单选】
A:302
B:500
C:404
D:403

4、无锁化编程的常见方法有:【多选】
A:针对计数器,可以使用原子加
B:只有一个生产者和一个消费者,那么就可以做到免锁访问环形缓冲区(Ring Buffer)
C:RCU(Read-Copy-Update),新旧副本切换机制,对于旧副本可以采用延迟释放的做法
D:CAS(Compare-and-Swap),如无锁栈、无锁队列等待

5、设t=1, a=2, b=-1,执行if((a=b)>0) t=a++;后 t 的值为:【单选】
A:2
B:1
C:3
D:0

6、在操作系统的下列功能组成部分中,哪个不需要硬件的支持?【单选】
A:进程调度
B:时钟管理
C:地址映射
D:中断系统

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7、一堆石子,共100颗,甲、乙轮流从该堆中取石子,每次可以取2、4或6颗,取得最后的石子的玩家为赢家,若甲先取,则:【单选】
A:甲必胜
B:乙必胜
C:谁都无法必胜
D:不确定

8、TCP/IP 模型体系结构中,ICMP 协议属于:【单选】
A:应用层
B:网络层
C:数据链路层
D:传输层

9、编译程序的前3个阶段完成的工作是:【单选】
A:词法分析、语法分析和代码优化
B:代码生成、代码优化和词法分析
C:词法分析、语法分析、语义分析和中间代码生成
D:词法分析、语义分析和中间代码生成

10、抽屉里有红球、蓝球、黄球、橙球各100个,现在每人过来随机抽一个球,那么最多几个人抽完之后,能保证一定集齐20个相同颜色的球【单选】
A:37
B:45
C:77
D:50

11、从 CPU 体系架构上看,以下哪种CPU 的架构和其他的不同?【单选】
A:Intel64
B:MIPS
C:ARM
D:Power

12、IPv6 的出现是为了解决全球 IP 马上被耗尽的问题,和 IPv4 相比,以下对其特点的描述中不正确的是:【单选】
A:路由表更大
B:良好的扩展性
C:IP 地址长度是 128 位
D:简化的报文头格式

共收到2条回复
CaseyMal 2 月前 #1

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CaseyMal 1 月前 #2

Some people, especially those running on busy daily schedules tend to use the pills to help maintain weight since they can not afford to follow all the diet programs. This is not advised. It is recommended that one seek advice from a professional in this field before using the pills. This can save one from many dangers associated with the misuse.

The diet pills should always be taken whole. Some people tend to divide the pills to serve a longer period of time. This is not advised and can lead to ineffectiveness. If it is required that one takes a complete tablet, it means that a certain amount of the ingredients are required to achieve the desired goal. It is also recommended that one does not crush the pill and dissolve it in beverages. Chemicals found in beverages have the potential of neutralizing the desired nutrients in the pill thereby leading to ineffectiveness. The best way to take the tablets is swallowing them whole with a glass of water.

The diet pills speed up the metabolic processes. This is the key factor that leads to the burning of all the fats in the body. This means that one passes out lots of urine, which subsequently leads to dehydration. It is imperative that the user take lots of water round the clock. This will help curb dehydration, which can lead to health problems. In addition to that, water offers the required medium for the function of the nutrients and elimination of the fats.

When buying the review of diet pills, it is imperative that one gets the most recommended dose. People tend to compromise the quality and effectiveness of the tablets due to the variation in cost. The low priced pills depict poor quality, which means their effectiveness is not reliable. Some have also been found to cause health problems. The dose should also be taken as recommended. Over dose will not speed up the process but rather lead to complication. This will increase risk of side effects. If the taking of the pill is forgotten, do not take more to compensate for the lost time.

The diet plan enclosed with the diet pills has also to be followed. According to the requirements, the termination of the diet must be done even with no results. This means your body is irresponsive.

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