Chapter 6

Lab Activity 6.2.1

Step 1 : Observe DNS conversion

a. Click the Start button, select Run, type cmd, and then click OK. The command prompt window appears.
b. At the command prompt, type ping http://www.cisco.com. The computer needs to translate
http://www.cisco.com into an IP address so it knows where to send the Internet Control Message Protocol
(ICMP) packets. Ping is a type of ICMP packet.

d. IP address is shown on the screen = 60.254.168.170.

e. tidak sama

 

Step 2 : Verify DNS operation using the nslookup command

b.  default DNS server being used is ns4.unp.ac.id

g. the translated IP address is 60.254.168.170.

h. sama

 

Step 3 : Identify mail servers using the nslookup command

c. server : e144.cd.akamaiedge.net, address : 60.254.168.170, aliases : http://www.cisco.com

f. server : ns4.unp.ac.id, address : 10.1.1.5

 

 

Lab Activity 6.2.3

Step 1 : Examine FTP from the command prompt

d.  append, ascii, bell

f. to send one file

g. get –> receive one file, send –> send one file, recv –> receive one file

 

Step 2 : Use a GUI FTP client or web browser

 

 

Lab Activity 6.2.4

Step 3 : Enter POP3 e-mail account information

c. (POP3) mail server

d. (SMTP) mail server

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