OSI-Network Infrastructure & PMBOK
Network Topology
Bus Topology
Star Topology
Ring Topology
Used in undersea cable (connect country together)
All device in the bus topology can hear (detect) each other
All devices connect wire to a central connector (switch)
Fully Meshed Topology (Best)
Down side
Expensive to maintain
Safest and greatest redundancy
Difficult to administer
Addressing
Physical Address
Logical Address
Operates at Layer 2
"Burned In" device when manufactured
Cannot divide into separate sub-network
MAC Address
Configured by Network Administrator
Operates at Layer 3
Group devices into sub-network
IP Address
⚠ Arp (Address Resolution Protocol) enables two layers to resolve each other
IP Address
32 bits
Break it down to 4 octets
Represent each octets as decimal number
IP is hierarchical
Subnet
Sub-netting enables the hierarchy
Use Subnet Mask to configure device
Subnet mask is all 1 on the left and 0 on the right
Subnet Mask used to determine the Network, Sub-Network and Host Portion of the IP
Logical address rules
Address in same network connect to same LAN
Communication outside network must sent through router
PMBok
Integration Management
Scope Managment
Time Management
Cost Management
Quality Management
Human Resource Management
Communication Management
Risk Management
Procurement Management