Networks_and_Internet_Flashcards
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What hardware is needed to connect to a wireless network?
Wireless network interface card (NIC), wireless router or access point, and optionally signal boosters.
What is the role of a router in a network?
A router directs data packets between networks, assigns IP addresses, and provides NAT and firewall security.
How does DNS work when we access a website?
DNS translates a domain name into an IP address by querying DNS servers.
What are the four layers of the TCP/IP model?
Application, Transport, Internet, and Link.
What does the Application layer in TCP/IP do?
Provides network services to applications, such as HTTP and FTP.
What does the Transport layer in TCP/IP do?
Manages end-to-end communication, ensuring reliable data transfer using protocols like TCP.
What does the Internet layer in TCP/IP do?
Handles logical addressing and routing of packets between networks.
What does the Link layer in TCP/IP do?
Controls the physical connection to the network, including hardware addressing.