Ports and Protocols
This protocol, operating on Port 53, translates human readable domain names into IP addresses.
What is DNS.
This system seamlessly translates human readable domain names into numeric IP addresses that computers use to connect to servers.
What is DNS (or Domain Name System)?
Because its PIN mechanism is incredibly easy to hack, this push button pairing feature should always be disabled on a router.
What is WPS (or Wi-Fi Protected Setup)?
Because it uses a Teflon coating that emits minimal toxic smoke if burned, this specific cable jacket rating is strictly required for wires run through HVAC airspaces.
What is Plenum?
Modern cable providers utilize a hybrid network that uses high-speed fiber optics for the backbone and this specific type of cable for the final segment into the customer's building.
What is Coaxial (or Coax)?
A user complains their email read status is not syncing between their smartphone and desktop. You discover their mail client is configured for this legacy port instead of 143.
What is port 110? (or What is POP3?)
Highly useful for redirecting traffic to external third-party services, this specific DNS record maps a domain alias to another domain name rather than directly to an IP address.
What is a CNAME (or Canonical Name) record?
Introduced with the 802.11ac standard, this specific technology allows a wireless access point to communicate with multiple user devices simultaneously.
What is MU-MIMO?
Also known as a "Fox and Hound," this two-part tool is used to track down cables in undocumented networks by injecting a signal at the wall jack and scanning the server room patch panel.
What is a Toner Probe?
Serving as the most common type of digital subscriber line, this specific connection offers higher download speeds and lower upload speeds to match typical user behavior.
What is ADSL (or Asymmetric DSL)?
A network security scan just flagged this legacy, plain text protocol because it uses one port for issuing commands and a second, adjacent port for the actual file payload. (Provide the protocol and both ports).
What is FTP, Ports 20 and 21?
To ensure critical devices like network printers always receive the same IP automatically, administrators will link the device's MAC address to a fixed IP using this DHCP feature.
What is a DHCP Reservation?
This wireless standard, also known as Wi-Fi 4, was the first to introduce MIMO technology and operate simultaneously on both the 2.4 and 5 gigahertz spectrums.
What is 802.11n?
Featuring a very narrow core that allows a single beam of light to travel perfectly straight over massive distances, this specific type of cable is identified by its yellow sheath.
What is Single Mode Fibre (or SMF)?
First introduced with 4G LTE networks, this specific antenna technology utilizes multiple inputs and multiple outputs to drastically increase data speeds.
What is MIMO? (Multiple Input, Multiple Output)
While running a packet sniffer, you see a network administrator's password transmitted in plain text. You immediately know they are using this port instead of port 22.
What is port 23? (or What is Telnet?)
Specifying the exact, unambiguous location of a device within the DNS hierarchy, www.realitybytes.ca is a perfect example of this specific term.
What is a Fully Qualified Domain Name (or FQDN)?
Operating across the 2.4, 5, and 6 gigahertz bands, this standard utilizes OFDMA to allow multiple devices to efficiently share channels at once.
What is 802.11ax (or Wi-Fi 6 / 6E)?
When terminating cables into an office wall jack, technicians use this specific hand tool to aggressively push the interior wires into the keystone while simultaneously slicing off the excess wire.
What is a Punchdown Tool?
Utilizing millimeter waves for extremely fast gigabit speeds, this 5G frequency band covers a very short range and is heavily utilized in dense areas like stadiums.
What is High-band?
If a workstation fails to query user groups from the Active Directory domain controller, you would verify that this port is open.
What is port 389? (or What is LDAP?)
While an A record points to a standard IPv4 address, a Quad A record links a domain name directly to an IPv6 address, which consists of exactly this many bits.
What is 128 bits?
Ideal for remote sites, this fixed wireless option can transmit signals up to 40 miles away, but it strictly requires a clear physical line of sight between the high frequency transmitters.
What is Microwave?
While modern ISPs utilize thick RG-6 coaxial cables to bring high-speed internet to cable modems, this specific legacy coaxial rating was used to carry composite video signals for older satellite TV boxes.
What is RG-59?
The modern DOCSIS 4.0 standard dictates how data is transmitted over cable networks and supports maximum upload speeds up to this exact gigabit limit.
What is 6 Gbps?