Week_4 Flashcards
What does DHCP do?
Dynamically configures IP addresses
Name 3 peocesses of DHCP
Client machine requests an IP at boot
Client & server should be same subnet
DHCP relay agent manage requests to remote subnets
Name 3 different kinds of IP Allocation
Dynamic allocation
Automatic allocation
Static allocation
Name a few issues with DHCP
Vendor identification
DHCP Relaying
Confidentiality
Reliability
Security
Name 3 things that make DHCP reliable
After 50% lease time a new lease is requested by client
If server unavailable then client broadcasts new DHCP request
If lease expires. Client broadcasts DHCP discoer as before.
How many bytes in a ethernet payload?
1500 Bytes
What is address resolution netwrok?
Resolution od network layer addressing to link layer addresses
What does a router do? Name 3 things a router does.
A device that forwards data packets between computers networks.
Router reads address information of incoming packets
Uses routing table or routing policy to determine output connection.
Name 4 router types.
Access
Distribution
Security
Core
Name 2 router planes of operation.
Control plane
Forwarding plane
What is the reason for forwarding?
Tries to minimise the state information associated with individual packets.
Makes decisions on best route
Packet priority when multiple queues
What is routing?
Routing is the process of selecting best paths in a network
What is static routing?
Manually entering routes into the routing table
Ehat is dynamic routing?
Dynamic routing is when the router leanes network destinations and can share/advertise with other routers
