Routers

Question 1

Routers:

Answer 1

Network layer (Layer 3).
Are more intelligent.
Connect different networks.
Make decisions based on logical IP addresses.
Do not pass broadcast traffic across networks.

Question 2

What is a router and its role in networks?

Answer 2

Efficient and timely routing of packets, through path selection.
Connect multiple networks together.
Route data packets between networks, using IP addresses.
Operate at the network layer (Layer 3) of the OSI model.
Use IP addresses to make decisions about the best path for data transfer.
Isolation of broadcast domains.

Question 3

What are routers doing in networks?:

Answer 3

Path selection:
Routers use IP addresses and routing protocols to determine the most efficient path for data packet traversal across networks.
Routing tables & route selection:
A routing table contains a list of routes to various network destinations
This information is used to decide the best path for forwarding packets, based on the destination IP address.
Network Address Translation (NAT):
A process that translates private IP addresses to a public address for internet communication.
Conserves public IP addresses.

Question 4

What are some benefits of routers?

Answer 4

Connecting networks:
Enable communication between different topologies and architectures.
Examples: LAN to WAN, LAN to Internet.
Internet access:
Connect local networks to the internet and manage data traffic efficiently.
Broadcast communications isolation:
Segment broadcast domains.
Isolate broadcast communications to specific segments.
What are some comparisons to other network appliances?