1-16 EXAMINING NETWORK ROUTERS Flashcards
What is a router?
A device that connects multiple networks together and routes data packets between them using IP addresses
Routers operate at the network layer (Layer 3) of the OSI model.
What is the primary role of a router in networks?
Efficient and timely routing of packets through path selection.
How do routers determine the best path for data transfer?
By using IP addresses and routing protocols to assess the most efficient path for data packet traversal.
What is contained within a routing table?
A list of routes to various network destinations.
What is the function of a routing table?
To decide the best path for forwarding packets based on the destination IP address.
What is Network Address Translation (NAT)?
A process that translates private IP addresses to a public address for internet communication.
What is a benefit of using NAT?
Conserves public IP addresses.
What are the benefits of routers?
- Connecting networks
- Internet access
- Broadcast communications isolation
How do routers enable communication between different topologies?
By connecting various network architectures, such as LAN to WAN or LAN to Internet.
What role do routers play in managing data traffic?
They connect local networks to the internet and manage data traffic efficiently.
What is broadcast communications isolation?
The ability to segment broadcast domains and isolate broadcast communications to specific segments.
What is the difference between routers and switches?
Switches operate at the data link layer (Layer 2) and connect devices within the same network using MAC addresses.
What is a hub and how does it compare to a router?
A hub is a basic device that operates at the physical layer (Layer 1) and broadcasts to all ports, unlike routers which are more intelligent and connect different networks.
True or False: Routers pass broadcast traffic across networks.
False.
Fill in the blank: Routers operate at the _______ layer of the OSI model.
network layer (Layer 3).
