Ccna 3 Chapter 1 Study Guide
CCNA3 Exploration Chapter 1. Study questions.
1.1
What are the three layers of the hierarchical network design model?
Access, distribution, core
Access, distribution and core.
What are the advantages of designing LANs using the hierarchical model?
Separates out different functions of a network. This would make it easier to manage, troubleshoot, and expand.
Seperates out different functions of a network.The hierarchical model separates out different functions of a network, giving a modular design. This should make the network easier to manage and troubleshoot. It should be easier to expand the network (scalability), and it should be easier to maximise What is the purpose of the access layer?
Allows end device to connect to network and controls which devices connect.
It allows end devices to connect to the network and controls which devices may connect.
What sort of devices are found at the access layer?
Computers, printers, routers, switches, hubs, ip phones
End devices, such as PCs, printers, and IP phones. Network devices such as routers, switches, bridges, hubs, and wireless access points.
What is the purpose of the distribution layer?
It controls the flow of the network traffic.
It controls the flow of network traffic. In particular, it controls traffic between different broadcast domains (subnetworks, VLANs). It aggregates traffic from the access layer that needs to be passed to the core layer for longer distance transmission.
What sort of devices are found at the distribution layer?
High performances switches.
High-performance switches. They should have high availability and redundancy to ensure reliability
What is the purpose of the core layer?
High speed backbone that forwards large amount of data quickly
It is the high speed backbone of the network. Its main task is to forward large amounts of data quickly.
What is a collapsed core model and where might it be used?
The distribution layer and
1.1
What are the three layers of the hierarchical network design model?
Access, distribution, core
Access, distribution and core.
What are the advantages of designing LANs using the hierarchical model?
Separates out different functions of a network. This would make it easier to manage, troubleshoot, and expand.
Seperates out different functions of a network.The hierarchical model separates out different functions of a network, giving a modular design. This should make the network easier to manage and troubleshoot. It should be easier to expand the network (scalability), and it should be easier to maximise What is the purpose of the access layer?
Allows end device to connect to network and controls which devices connect.
It allows end devices to connect to the network and controls which devices may connect.
What sort of devices are found at the access layer?
Computers, printers, routers, switches, hubs, ip phones
End devices, such as PCs, printers, and IP phones. Network devices such as routers, switches, bridges, hubs, and wireless access points.
What is the purpose of the distribution layer?
It controls the flow of the network traffic.
It controls the flow of network traffic. In particular, it controls traffic between different broadcast domains (subnetworks, VLANs). It aggregates traffic from the access layer that needs to be passed to the core layer for longer distance transmission.
What sort of devices are found at the distribution layer?
High performances switches.
High-performance switches. They should have high availability and redundancy to ensure reliability
What is the purpose of the core layer?
High speed backbone that forwards large amount of data quickly
It is the high speed backbone of the network. Its main task is to forward large amounts of data quickly.
What is a collapsed core model and where might it be used?
The distribution layer and