Networking Fundamentals Quiz

TCP operates at the Transport Layer (Layer 4) of the OSI model, providing reliable, connection-oriented data transmission with error checking and flow control.

TCP port 80 is the standard port assigned to HTTP (Hypertext Transfer Protocol), which is used for unencrypted web traffic. DNS uses port 53, FTP uses 20/21, and Telnet uses 23.

A 10/100/1000 connection refers to Ethernet speeds of 10 Mbps, 100 Mbps, and 1000 Mbps, which is commonly known as Gigabit Ethernet.

A subnet mask of 255.255.192.0 corresponds to 8 bits for the first octet, 8 bits for the second, and 2 bits for the third (192 is 11000000 in binary). Adding these together (8+8+2) results in 18 bits defining the network portion.

A modem (modulator-demodulator) is specifically designed to convert digital signals from a computer into analog signals for transmission over lines like telephone or cable, and vice versa.

A router operates at the Network Layer (Layer 3) of the OSI model. It routes packets between different networks based on IP addresses and routing tables.

UDP is preferred for online gaming because it prioritizes speed and low latency over reliability; lost packets are generally ignored rather than retransmitted, which would cause lag.

A router is the primary networking device used to connect different networks together, such as connecting a local area network (LAN) to the internet (WAN).

The Application Layer (Layer 7) is the top layer of the OSI model and provides the interface for end-user software applications to access network services.

A MAC address is 48 bits long, which is equivalent to 6 bytes.

A network switch is the standard device used to connect multiple devices within a single local area network (LAN) to allow them to communicate with each other.