Tech Blogs

What does IP do? IP is responsible for routing of the packets or the datagrams, it transports datagrams or the packets from a source to a destination. This is called routing.  So, it will decide which node to forward it the packet next, that next node will again decide where to forward that packet next, this way the packet will finally reach the destination. So, the network layer or the IP layer in each of these nodes will be responsible for this routing or packet forwarding. This IP has an additional responsibility   , if it finds that a packet is large, too large, it may break a packet into smaller packets, this is called fragmentation .  The point to note is that IP uses datagrams and when you talked about datagrams, datagram is an unreliable service; unreliable in the sense that some datagrams might get lost, some duplicates might get generated, datagrams maybe received out of order at the destination. So, such scenarios may happen. So, means if you are ...

  1. LOCAL AREA NETWORK (LAN) Connects hosts within a relatively small geographical area. 1. same room  2. same building  3. same campus  2. WIDE AREA NETWORK (WAN) Hosts may be widely dispersed 1. Across campus  2. Across Cities/Countries/Continents

WHAT IS CYBER SECURITY? Cybersecurity is the practice of protecting systems, networks, and programs from digital attacks. These cyberattacks are usually aimed at accessing, changing, or destroying sensitive information; extorting money from users; or interrupting normal business processes. TYPES OF CYBER SECURITY? 1. Critical infrastructure security. 2. Application security. 3. Network security. 4. Cloud security. 5. Internet of Things (IoT) security.