On the questions of school recruit Pen

1, the list needs to estimate the storage space beforehand

2, the core of the database system is the database management system (DBMS)

3, multi-user time-sharing System Representative: UNIX System

4. Application layer protocol: Hypertext Transfer Protocol (HTTP), File Transfer Protocol (FTP), remote login (telnet), Simple Mail Transfer Protocol (SMTP), Domain name Resolution Protocol (DNS), Simple File Transfer Protocol (TFTP), Simple Network Management Protocol (SNMP), Dynamic Host Configuration Protocol (DHCP)

5, Network Seven layer protocol: Application layer, presentation layer, session layer, Transport layer, network layer, data link layer, physical layer.

6, Pop3:post Office Protocol-version 3 ", or" Post Office Protocol version 3 ". is a member of the TCP/IP protocol family

7. ICMP: (Internet Control message Protocol) Internet Controlled message protocol. It is a sub-protocol of the TCP/IP protocol family

8. The waterfall model of software life cycle divides the software project into three stages: planning stage, development stage and Operation stage.

9. XSLT is an extended style sheet conversion language

On the questions of school recruit Pen