免费智能真题库 > 历年试卷 > 系统架构设计师 > 2018年下半年 系统架构设计师 上午试卷 综合知识
第71题      2018年下半年 系统架构设计师 上午试卷 综合知识
所属知识点   专业英语       
考点辞典   ping

 
Designing the data storage architecture is an important activity in system design. There are two main types of data storage formats: files and databases. Files are electronic of data that have been optimized to perform a particular transaction. There are several types of files that differ in the way they are used to support an application.(71)store core information that is important to the business and , more specifically , to the application , such as order information or customer mailing information . (72)contain static values , such as a list of valid codes or the names of cities . Typically, the list is used for validation. A database is a collection of groupings of information that are related to each other in some way. There are many different types of databases that exist on the market today.(73)is given to those databases which are based on older , sometimes outdated technology that is seldom used to develop new applications . (74)are collections of records that are related to each other through pointers In relational database , (75)can be used in ensuring that values linking the tables together through the primary and foreign keys are valid and correctly synchronized.
 
 
  A.  Master files
 
  B.  Look-up files
 
  C.  Transaction files
 
  D.  History files
 
 
 

  专业英语 知识点 更多相关真题:    更多>  
 
  第72题    2018年下半年  
   59%
Designing the data storage architecture is an important activity in system design. There are two main types of data storage formats: files and databases. Files are electronic of da..
  第74题    2017年下半年  
   50%
The architecture design specifies the overall architecture and the placement of software and hardware that will be used. Architecture design is a very complex process that is often..
  第72题    2017年下半年  
   54%
The architecture design specifies the overall architecture and the placement of software and hardware that will be used. Architecture design is a very complex process that is often..
 

ping
ping通过发送"Internet控制报文协议(ICMP)"回送请求/应答报文来验证与另一台TCP/IP计算机的IP级连接。回送请求/应答报文的接收情况将和往返过程的次数一起显示出来。ping是用于检测网络连接性、可到达性和名称解析的疑难问题的主要TCP/IP命令。如果不带参数,ping将显示帮助。
1)语法格式
2)参数说明
参数如下表所示。
ping的选项
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↓第71题