易安信 2021 技术支持面试题

What is a file system? List all types of file system that you know.

第2题：

 What is the benefit of STP? List all types of STP that you know and describe them one by one.

第3题：

How to change the root password on a Linux system?

第4题：

What is the difference between soft link and hard link in a Unix system, and what is the pros and cons of them?

第5题：

What is the basic difference between SAN and NAS?

第6题：

 Your customer wants to have a backup of his system, now you have two choices: Backup to Tape or Backup to Disk, the customer needs to recover the data ASAP when there's a system failure. Provide your suggestion and reasons.

第7题：

If you are the network administrator in a company. One employee asks you for help because his Outlook can not send out email, and it's not the problem of Outlook itself, it a network issue, write down all your troubleshooting steps to solve this problem.

第8题：

What is the benifit of Cloud Computing?

第9题：

 How many RAID implementation methods do you know? Please describe the differnces between them.

第10题：

 List at least 3 Relational DBMS and 1 NoSQL database.

第11题：

你让客户软件升级后，软件出现问题。你发现这是其他计算机厂商的产品导致运行环境出现问题，要求客户找那个那个公司寻求帮助。但客户不要，说是你让升级才出现的问题。怎么解决这个问题。

第12题：

某客户使用EMC的软件备份数据，但数据丢失后才发现备份不能使用。你发现这是客户的备份软件设置不正确导致的。你要怎么告知客户这个事实，然后怎么处理。

第13题：

文件系统是什么?列举你听说过的文件系统。

第14题：

怎么修改root密码

第15题：

nas和san的区别

第16题：

客户需要备份数据，要求故障时能尽可能快的恢复，是应该备份到disk还是tape

第17题：

公司有人用outlook发邮件发不出去了(确定不是outlook本身的问题)请你写出解决步骤。

第18题：

云计算的好处，写出所有你知道的

第19题：

raid的种类及其区别

第20题：

写出至少三种关系型DBMS和一种NoSQL数据库