IP Addressing
This type of IP address is used inside a private network and is not routable on the internet
What is a private IP address?
This layer handles MAC addresses and switching
What is Layer 2?
Before reaching a website, your device first uses this to resolve the domain name
What is DNS?
This tells a device where to send traffic if the destination is unknown
What is the default route?
This determines which portion of an IP address is the network vs host
What is a subnet mask?
This layer is responsible for physical transmission of bits
What is Layer 1?
When a device wants to communicate on the local network, it first uses this protocol to find the MAC address of the destination
What is ARP?
This type of routing requires an administrator to manually configure paths and does not adapt to network changes automatically
What is static routing?
If two devices are in different subnets, they need this to communicate
What is a default gateway?
Routing decisions happen at this layer
What is Layer 3?
This process wraps data with headers as it moves down the OSI model
What is encapsulation?
This is the administrative distance of eBGP routes
What is 20?
This happens when two devices share the same IP address?
What is an IP conflict?
This layer ensures reliable delivery using protocols like TCP
What is Layer 4?
The reverse of encapsulation when data is received
What is decapsulation?
This protocol is commonly used for dynamic routing in enterprises and maintains a link state database
What is OSPF?
You are given 192.168.1.0/24. This means how many usable hosts?
What is 254?
This is where HTTP operates
What is Layer 7?
If a packet cannot reach its destination, this device forwards it outside the local network
What is a router (default gateway)?
If a route is missing, traffic is typically sent here
What is the default gateway?