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Terms in this set
- Subnet Mask A value that separates an IP address into its network and host portions.
- CIDR Classless Inter-Domain Routing — a notation like /24 that shows how many bits are the network prefix.
- Subnetting Dividing one IP network into smaller subnetworks to improve organization and reduce broadcast traffic.
- DNS Domain Name System — resolves human-readable names like example.com into IP addresses.
- DHCP Dynamic Host Configuration Protocol — automatically assigns IP addresses and network settings to clients.
- NAT Network Address Translation — maps private internal IPs to one or more public IPs to reach the internet.
- Default Gateway The router address a host sends traffic to when the destination is outside its local subnet.
- Ports and Protocols Numbered endpoints (0 to 65535) that identify which service a packet is destined for.
- HTTPS HTTP secured with TLS encryption, running on port 443 for safe web browsing.
- SSH Secure Shell — an encrypted protocol on port 22 for remote command-line administration.
- Network Topology The physical or logical arrangement of devices and links in a network, such as star, mesh, or bus.
- Twisted Pair Cabling Copper cabling with pairs twisted to cancel interference, used for most Ethernet runs (e.g. Cat 6).
- Fiber Optic Cabling Cabling that carries data as light pulses, offering long distance and immunity to electromagnetic interference.
- Coaxial Cabling A single copper core surrounded by shielding, commonly used for cable internet and broadband.
- Cloud Networking Networking delivered through cloud providers, using virtual networks, gateways, and connectivity to on-premises sites.