Describe the OSI (Open Systems Interconnection) model and its seven layers. The OSI (Open Systems Interconnection) model is a conceptual framework
Explain the concept of NAT (Network Address Translation). Network Address Translation (NAT) is a fundamental networking technique that
What is the difference between a MAC address and an IP address? MAC (Media Access Control) address and IP (Internet Protocol) address
How does DHCP (Dynamic Host Configuration Protocol) work? Dynamic Host Configuration Protocol (DHCP) is a network protocol that
What is the purpose of a firewall in a network? A firewall is a network security device or software that
Define DNS (Domain Name System) and its role in internet communication. The Domain Name System (DNS) is a hierarchical and distributed
What is a subnet mask, and how is it used in networking? A subnet mask is a 32-bit address that is used
Explain the difference between TCP and UDP. TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are
Describe the function of a router in a network. A router is a critical networking device that operates at