Networking Flashcards
Set of rules (protocol) governing data packet movement across networks, ensuring all connected devices “speak the same language.”
Internet Protocol (IP)
What are the two common types of network configurations for the Internet Protocol (IP)?
IPv4 and IPv6
32-bit number used to distinguish the network portion from the host portion of an IP address.
Subnet mask
What process is known for automatically assigning an IP address any time a device connects to a network?
Dynamic Host Configuration Protocol (DHCP)
What process assigns IP addresses that expire after a set amount of time, pulling from a public pool of available IP addresses?
Dynamic Host Configuration Protocol (DHCP)
What process on a device assigns a private IP address when a DHCP server is unavailable?
Automatic Private IP Addressing (APIPA)
What process can automatically assign an IP address but only communicate on a local network and not the outside world?
Automatic Private IP Addressing (APIPA)
What process translates domains and web addresses into IP addresses?
Domain Name System (DNS)
What is the name of the device located at the boundary of a network that is used to transfer communication between a local network and the internet?
Gateway
What are the two protocols whose purpose is to facilitate sending information from one device to another?
Transmission Control Protocol (TCP) and User Datagram Protocol (UDP)
What protocol has a primary purpose of reliability and establishing a connection (guaranteeing the correct data is transmitted) but is slower in transmitting data?
Transmission Control Protocol (TCP)
What protocol is a connectionless protocol where data is continuously sent to a recipient but there is no error checking or validation (resulting in quicker transmission of data)?
User Datagram Protocol (UDP)
Which protocol is better used for real-time broadcasting or playing non-local multiplayer videogames?
User Datagram Protocol (UDP)
Which protocol is better for sending images, data files, web pages, and emails?
Transmissions Control Protocol (TCP)
What is the name of a software endpoint used by a specific process or application for communication?
Network Port
List some examples of network ports
- HTTP (web): TCP 80
- HTTPS (secure web): TCP 443
- FTP (file transfer): TCP 20, 21
- SSH (secure remote - access): TCP 22
Connecting devices to share resources and communicate, enabling internet access
Networking
Why is networking crucial in modern life?
Connects various devices (computers, smartphones, even thermostats) to the internet, facilitating communication and data sharing globally.
What hardware devices are commonly found in a network?
- Routers
- Switches
- Wireless access points
- Servers (DNS, DHCP).
What is an IP address?
A unique logical numeric address assigned to every device on a network for identification.
Non-routable addresses (e.g., starting with 10., 172.16., 192.168.) used within local networks, remapped to public IPs by routers.
What are private IP addresses?
How are IPv6 addresses shortened?
- Leading zeros omitted
- Consecutive zero blocks replaced with a double colon (::).
Device managing data flow in and out of a network, typically the router in home networks.
Gateway
