DHCP

Question 1

MAC reservation

Answer 1

IP address associated with / reserved exclusively for a specific MAC

Question 2

Pools

Answer 2

grouping of IP addresses leased out by DHCP server

separate pool for each subnet

Question 3

IP exclusions

Answer 3

IP addresses excluded from pool

Question 4

Scope options

Answer 4

range of IP addresses
DNS Server
Default gateway
WINS Server

Question 5

Lease time

Answer 5

period of time between when host obtained its IP address from the router and the time when it expires

Question 6

TTL

Answer 6

Time-to-live

a value in an IP packet that tells a network router whether or not the packet has been in the network too long and should be discarded

Question 7

DHCP relay / IP helper

Answer 7

takes broadcast sent from host stopped by router, converts to unicast to send to DHCP server, acts in reverse going back to host from DCHP

Question 8

IPAM

Answer 8

IP Address Management

• plan, track, configure DHCP
• Report on IP address usage
• control DHCP reservations
• Single console for IPv4 & IPv6

Question 9

NTP

Answer 9

Network Time Protocol

protocol to sync time across network automatically

NTP client request times from NTP server

stratum layers, distance from authoritative clock
stratum 0 - atomic clock, GPS clock, etc