Q in BSCI

? Which BGP feature should be used to avoid high memory utilization on a router
Select the best response.

A. soft-reconfiguration
B. route refresh
C. BGP communities
D. full-mesh BGP peering

Answer: B

My Q Is the B is the correct answer and why , Coz I think the correct answer is C

route refresh
هو الحل الامثل فال soft reset ستحدث اتوماتيكيا

Resetting a Router Using BGP Dynamic Inbound Soft Reset
If both the local BGP router and the neighbor router support the route refresh capability, you can perform
a dynamic soft inbound reset. This type of reset has the following advantages over a soft inbound reset
using stored routing update information:
• Does not require preconfiguration
• Does not require additional memory for storing routing update information

نفس السؤال يلي سألته لنفسي بس بعدين اقتنعت بالاجابة

salam,
my answer would be route refresh cause,
the bgp table associated with the DRAM meaning when the router built the BGP table the bgp procees takes some amount of memory, check the following table "holding"":

This command shows the amount of memory the BGP process occupies in RAM:

R1# show processes memory | begin BGP

PID TTY Allocated Freed Holding Getbufs Retbufs Process

73 0 678981156 89816736 70811036 0 0 BGP Router

74 0 2968320 419750112 61388 1327064 832 BGP I/O

75 0 0 8270540 9824 0 0 BGP Scanner

70882248 Total BGP

77465892 Total all processes

so, the way to prevent the mem utilization would be refresh route table...

check the following link for more info:

https://www.cisco.com/en/US/tech/tk3...80094a83.shtml

HTH,

Osama

Thanks ya Man
I think that is it