Explain TCP/IP networking.

42.Explain TCP/IP networking.
Ans.
1. TCP/IP is transmission control protocol and belongs to the family of protocols used for computer communication.

2. TCP and IP are two different protocols from the group of protocols called as TCP/IP protocol suite.

3. TCP/IP protocols suite also includes address resolution protocol (ARP);Domain Name System (DNS);Internet Control message protocol(ICMP);User Datagram Protocol(UDP);Routing Information Protocol(RIP);Simple Mail Transfer Protocol(SMTP);Telnet and many others.

4. Each device connected to a network must have an address to communicate called as Device address.

5. Device address has two parts: the address of the network to which the device is connected and the address of device itself, i.e. host address.

6. These two unique addresses are called as network layer addresses and the media access control (MAC).

7. Network layer addresses are IP addresses that have been assigned to the device whereas Mac addresses are built into the Ethernet card by the manufacturer.

8. Data is transferred by breaking information into small piece of data called packets or Datagrams

9. Transferring data in packets avoids error in communication.

Comments

Java,ES,QT practical files

All practical files: Click below to start download Uploaded on special request||||

Absolute Links vs. Relative Links – SEO Value

Absolute Links vs. Relative Links – SEO Value The debate between absolute links and relative links continues to live on in the SEO world. The individual significance of each has been contested, but it is widely regarded that absolute links provide better SEO value on the whole than relative links. Many believe that absolute links have less potential for getting messed up when search engines index your page. It shouldn’t really make a difference, but many conclude that this is reason enough. Read more...

What are the server and client security considerations?

72.What are the server and client security considerations? Ans. Server security considerations: 1. Always use the root_squash option in /etc/exports. 2. Enabled by default so do not disable it. 3. With root squashing clients root account can’t even access or change files that only server’s root account can change or access. Client security considerations: 1. Disable SUID (set UID) programs on NFS mounts using nosuid option. 2. Prevents server’s root account from creating an SUID root program on an exported FS, logging in to the clients as a normal user, and then using the UID root program to become root on the client.

Ultimate IT solutions

Search This Blog