Networks_and_Internet_Flashcards

Question 1

What hardware is needed to connect to a wireless network?

Answer 1

Wireless network interface card (NIC), wireless router or access point, and optionally signal boosters.

Question 2

What is the role of a router in a network?

Answer 2

A router directs data packets between networks, assigns IP addresses, and provides NAT and firewall security.

Question 3

How does DNS work when we access a website?

Answer 3

DNS translates a domain name into an IP address by querying DNS servers.

Question 4

What are the four layers of the TCP/IP model?

Answer 4

Application, Transport, Internet, and Link.

Question 5

What does the Application layer in TCP/IP do?

Answer 5

Provides network services to applications, such as HTTP and FTP.

Question 6

What does the Transport layer in TCP/IP do?

Answer 6

Manages end-to-end communication, ensuring reliable data transfer using protocols like TCP.

Question 7

What does the Internet layer in TCP/IP do?

Answer 7

Handles logical addressing and routing of packets between networks.

Question 8

What does the Link layer in TCP/IP do?

Answer 8

Controls the physical connection to the network, including hardware addressing.