18 Questions
What happens when two devices on a shared network segment send packets simultaneously?
The packets collide and must be sent again
In which type of network device do all ports belong to the same collision domain?
Hub
How does a bridge, switch, or router differ from a hub in terms of collision domains?
Each port is in a separate collision domain
What is the impact of multiple devices being in the same collision domain on network efficiency?
It reduces network efficiency due to packet collisions
Why do most network designers consider the immediate visibility of all changes to the protocol a serious blunder?
It hinders efficient network management
What feature allows devices to use the full-duplex mode of communication and effectively doubles the maximum data capacity?
Separate collision domains for each port
What is the main function of a network hub?
Repeating an electrical signal to all ports
What is the main purpose of dividing computer networks into a stack of layers or levels?
To reduce design complexity and offer services to higher layers
Which hardware device can be considered as an OSI Layer 1 device?
Network Hubs
Why is each layer in a network stack considered a virtual machine?
To offer services to higher layers while abstracting implementation details
What is the primary purpose of a network bridge?
Dividing a network into segments
What happens when a router receives a packet intended for a specific host?
It compares the destination IP address and sends the packet out the correct interface
Which device is responsible for storing network software and shared user files?
Servers
How does running in full duplex mode on a router affect communication?
It allows for simultaneous communication in both directions on a port
What distinguishes switches from hubs in a network?
They filter out unnecessary traffic
What is the primary function of each layer in a network stack?
To offer certain services to higher layers while hiding implementation details
Which device serves as the connecting point between LANs and WANs?
Routers
How are collision and broadcast domains affected by separate ports on a router?
Each port creates its own collision and broadcast domain
Learn about how a router processes an IP packet to forward it to the correct destination, based on its routing table. Understand how communication between Hosts A and B is facilitated through a router, without involving other hosts in the network.
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