Explain about tcp&ip and osi model.
Why is port 139 open?
What is a loopback address?
Explain which layer is closer to the user?
How do you find your ip address on windows?
How many layers are there under tcp/ip?
What is shared memory in os?
Can isp block ports?
What is the port number of telnet and dns?
What osi layer is tcp?
How do I find out what program is using a port?
How do I find my server port?
what is the port number for arp,rarp,icmp,igmp?