2.1, 2.5, 2.6 Network Configurations Flashcards
What are the four layers of the TCP/IP model?
Link/Network Interface, Internet, Transport, Application.
What does the Link/Network Interface layer do?
Handles data transmission within the local network via Ethernet, WiFi, or fiber.
What does the Internet layer do?
Routes packets across WANs using IP addresses.
What is the role of the Transport layer?
Determines how data is sent using TCP or UDP.
What is TCP (Transmission Control Protocol)?
A reliable, connection-oriented protocol that ensures data delivery.
What is UDP (User Datagram Protocol)?
A faster, connectionless protocol that does not guarantee delivery.
What does the Application layer in the TCP/IP model include?
Higher-level protocols for email, file transfers, and encryption.
What does IPv4 stand for?
Internet Protocol version 4.
What does IPv6 stand for?
Internet Protocol version 6.
What is the purpose of DHCP (Dynamic Host Configuration Protocol)?
Automatically assigns dynamic IP addresses to devices.
What does DNS (Domain Name System) do?
Converts domain names (e.g., google.com) into IP addresses.
What is a VLAN (Virtual Local Area Network)?
A network segmentation method that isolates traffic within a LAN.
What is a VPN (Virtual Private Network)?
A secure tunnel that encrypts internet traffic between a device and a remote server.
How does TCP differ from UDP?
TCP is reliable and connection-oriented, while UDP is faster but does not guarantee delivery.
What are common use cases for TCP?
Web browsing, email (SMTP, IMAP), file transfers (FTP).
What are common use cases for UDP?
Streaming video, VoIP, online gaming.
What is a gateway in networking?
A device that connects different networks, often a router.
What is the purpose of a SOHO (Small Office/Home Office) router?
Provides internet access, assigns IPs, and manages traffic in small networks.
What is the function of NAT (Network Address Translation)?
Translates private IP addresses into a public IP for internet access.
What is the purpose of port forwarding?
Redirects external network traffic to a specific internal device.
What is a subnet mask used for?
Defines the range of IP addresses within a subnet.
Why is IPv6 important?
Provides a larger address space due to the exhaustion of IPv4 addresses.
How does a computer get an IP address automatically?
Through DHCP (Dynamic Host Configuration Protocol).
