Every layer of the OSI model you get today is one less doubt before the viva.
A diploma student asks Sumantrak
“explain the difference between a switch and a router”
A switch operates within a single network, forwarding data between devices using MAC addresses — it doesn't know about IP addresses. A router connects different networks together and forwards data based on IP addresses, which is how your home network reaches the internet. Viva tip: examiners like to ask where each operates — switch is Layer 2 (Data Link), router is Layer 3 (Network) of the OSI model.
Subjects Sumantrak covers for Information Technology
Advanced Computer NetworkData AnalyticsOperating SystemSoftware Engineering and TestingAdvanced Database ManagementJava ProgrammingData Communication and Computer NetworkInformation SecurityData Structure Using CDatabase Management SystemOOP Using C++Fundamentals of ICTProgramming in CBasic Electrical and Electronics Engineering