TCP / IP NETWORKING - 1

      TCP / IP NETWORKING INTERVIEW QUESTIONS AND ANSWERS

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1..What is TCP?

TCP is a connection - oriented communication protocol. It maintains the state of the connection at any given point of time

2..What is TCP  header

The TCP segment contains a TCP header and the TCP data. The header contains protocol control information, connection - specific information and field to validate integrity of the TCP header

3..What is IP header?

The IP header has fixed as well as optional fields. The fixed header is 20 bytes long and the rest is optional

4..What is routing?

An IP datagram reaches its destination by hopping through a series of routers

in the internet,. Each router maintains a table of all the possible routes through all the available links. This table is called routing table.

5..How to see the routing tables?

#  netstat

6..What is ping?

ping is a general network utility that is used to check the network connectivity of any host.

7..When Is the ACK scheduled?

ACK is scheduled whenever we get data from the peer

  

8..What is  multipathing? 

Situations where we can have multiple gateways to the public network from the local network.

9..How the packet  filtered within the ipchain?

Ip chains  filter incoming, outgoing, and the  forwarded packets

 10..What is Spoofing?

This type of attack involves one host or application pretending to be another.

Typically the attacker’s host pretends to be an innocent host by forging IP

addresses in network packets