Subnetting
What is the CIDR notation for 255.255.255.0?
/24
What is this (192.168.2.150) ?
IPv4 Address
What is the role of the router in your network?
It reads the specific destination address on every incoming data packet and forwards it to your specific device
If you need to power a single PoE camera but only have a standard (non-PoE) network switch, what piece of hardware should you use?
A PoE Injector
"Scotty doesn't know"
EuroTrip
Why do network engineers use subnetting to carve a massive network into smaller blocks?
To organize traffic, isolate devices into secure manageable blocks, and increase speed
What is this (00:1A:2B:3C:4D:5E) ?
MAC Address
When comparing a Router to a Network Switch, which addressing system does a Switch use to connect devices within the same network?
Physical MAC Addresses
How do VLANs help improve security within a network?
They isolate sensitive devices (like financial servers or security cameras) from general employee or guest traffic.
"Are you crying? There's no crying! There's no crying in baseball!"
A League of Their Own
For a standard /24 network block, if there are 256 total IPs, how many usable hosts are there after subtracting the reserved IPs?
254 Usable Hosts
How does an IP Address function in contrast to a MAC Address?
An IP address acts as a digital license plate for network routing, while a MAC is a permanent hardware fingerprint.
Which layer of the OSI model do network routers primarily operate within?
Layer 3 (Network Layer)
What does PVID (Port VLAN ID) do on a network switch?
It assigns a specific VLAN to any untagged traffic entering a switch port.
"Fragile it must be italian"
Christmas Story
How many addresses in a /23 subnet?
510 IP Addresses
How is a MAC Address best described in terms of a device's hardware?
The hardware's permanent, unique, factory-assigned identifier
Which type of network switch offers "Plug-and-Play Simplicity" with no configuration and no VLAN support, making it ideal for a small home office?
Unmanaged Switch
What are the two primary advantages of using Power over Ethernet (PoE)?
It simplifies infrastructure by using one cable for power and data, making it cost-effective to install devices in remote locations.
“Show me the money!”
Jerry Maguire
How many usable devices can a /25 network support?
126
In an IPv4 address, what does the "Network ID" represent?
The "Street" or zip code telling the router which local group the device belongs to
What is the fundamental difference in connectivity between a Modem and a Router?
A modem connects exclusively to the ISP, while a router distributes that connection to multiple devices via Wi-Fi or Ethernet
What is the capacity of a Trunk Port (Tagged VLAN)?
It handles multiple networks simultaneously.
What is the airspeed velocity of an unladen swallow?
What do you mean? An African or a European swallow?