Network+ basics2 Flashcards
What are the Top level domains?
.com
.edu
.gov
.net
.org
Web Services
Standard way for applications to talk with each other
XML
Standard communication format
Human-readable and machine-readable
Voice over IP
One network for voice and data
Wireless LAN controllers
Centralized management of WAP’s
Deploy new access points
performance and security monitoring
Configure and deploy changes to all sites
report on access point use
DHCP Process
Step 1 : DHCPDISCOVER
-Client to DHCP Server - udp/67
Step 2 : DHCPOFFER
DHCP Server to client - upd/68
Step 3 : DHCPREQUEST
Client to DHCP Server-udp/67
Step 4 : DHCPACK
DHCP Server to client-udp/68
DHCP address allocation
Dynamic allocation
DHCP has a big pool of addresses to give out
Addresses are recalimed after a lease period
DHCP address allocation
Automatic aoolcation
Aimilar to dynamic aoolcation
DHCP server keeps a list of past assignments
You’ll always get the same IP address
DHCP address allocation
Static allocation
Administratively configured
Each mac address has a matching IP address
What is a DHCP Scope?
A single contiguous pool of IP adresses.
DHCP exceptions can be made inside of the scope.
What do you configure inside of a DHCP scope
IP address range
Submet mask
Lease durations
DHCP Leases
T1 timer
Check in with the lending DHCP server to renew the ipaddress.
Happens at 50% of the lease time.
DHCP Leases
T2 timer
If the original DHCP server is down, try rebuilding with any DHCP server.
Happens at 87.5% of the lease time.
How many DHCP options are avaiable
256 with 254 being usable
o is pad, 255 is end
