jawaban Quiz chapter 6

1.      1. The part of message that is missing is retransmitted

2.       2. DNS    =>  A user request a website by typping in it’s name

    E-mail  => Internet protocol enable user to send the message to each other over the  internet

   File transfer =>  A user upload new to his or her website

   DHCP   => A workstation gets its ip address automaticly

   Web service => A user types in a URL and a page loads in the client browser

   Telnet => A network technician logs into a workstation from the remote site

3.      3. DNS server => translate a domain name to an ip address

   Commond DNS port number => 53

   Domain name => cisco.com

4.      4. DNS

5.      5. Web server => host a web page

    Web client => request a web page

    HTML => used to create web page

    HTTPS => secure protocol that uses port 443

   HTTP=> protocol commonly used by a web browser

6.      6. Protocol used to process e-mail

·         SMTP

·         IMAP4

·         POP3

7.      7.VoIP

8.      8.DHCP => 68

   DNS=> 53

   FTP data=> 20

   HTTP=> 80

   HTTPS=> 443
   POP3=> 110

  SNMP=161

  Telnet=> 23

9.      9. FTP, POP3, , DHCP