For which two protocols can PortFast alleviate potential host startup issues? (Choose two.)
A. DHCP
B. DNS
C. OSPF
D. RIP
E. CDP
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Which two protocols can PortFast alleviate potential host startup issues?
A and B
https://stevecao.wordpress.com/2017/01/04/spanning-tree-protocol-and-portfast/
Answer is A and B…. DHCP and DNS are time sensitive, can timeout
AB for sure.
Does the host need CDP at all?
A&B!
I think it is a and b
CDP is needed more so in a boot up process than DNS (DNS bindings can be statically set on a local OS list)
CDP is needed for say telephone bootup process. therfore portfast which was created for communication between network and faster workstations-30 seconds (improved from older OSes which would bootup in 90 seconds) bootup would benefit CDP more than DNS
so I would say
Answer AE
AB
CDP is related to “host startup issues”?!
AB is correct