Create an appendix providing a 50- to 100-word summary for each of the following

Create an appendix providing a 50- to 100-word summary for each of the following topics for your Business Continuity Plan.
Defense in depth
Air gap
DMZs
Proxy servers
Composition and security
Cascading/Segmentation
Emergent properties
Dependencies
TCB subsets
Transport layer security
BGP
OSPF
MPLS
Configuration management
DHCP
VPN
VLAN
SIEM