Question

In: Computer Science

13. Which e-mail protocol transfers information from the mail server to the user's desktop? 14. List...

13. Which e-mail protocol transfers information from the mail server to the user's desktop?

14. List six Internet top level domain suffixes.

15. Which are the three SNMP management modes?

16. Will typing in you browser's Address line the command "http://telnet.westnetinc.com allow FTP access?

Solutions

Expert Solution

  • The SMTP protocol trabsfer information from mail server tothe user. The Simple Mail Transfer Protocol (SMTP) is used for sending and receiving Email between Email clients and servers. When the SMTP server receives an Email from a mail client, The SMTP server will then check the records for the domain in the Email address in order to exchange the Email with the remote SMTP server
  • Six top level domain suffix :
    • infrastructure top-level domain (ARPA)
    • generic top-level domains (gTLD)
    • generic-restricted top-level domains (grTLD)
    • sponsored top-level domains (sTLD)
    • country code top-level domains (ccTLD)
    • test top-level domains (tTLD)
  • Three SNMP management modes :
    • SNMPv1—This was the original version of SNMP; SNMPv1 utilizes a community based security mechanism.
    • SNMPv2c—This was created to update a number of little things within SNMPv1; SNMPv2c utilizes a community based security mechanism.
    • SNMPv3—This was developed to provide a much higher level of security then was provided by either previous version. A couple different security features are implemented within the SNMPv3 standard; these include:
    • Message integrity
    • Authentication
    • Encryption
  • Yes browser's Address line the command "http://telnet.westnetinc.com allow FTP access.Because FTP commands to connect to an FTP server, login, traverse directories and even download files. Firstly FTP (File Transfer Protocol) uses two channels, the data channel and the control channel. This is called out-of-band control. The control channel sends commands to the FTP server and the data channel is used for data (to retrieve files from the server, etc). Because of this the FTP works diffferently from other protocols

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