Exam 300-410 topic 1 question 263 discussion

Actual exam question from Cisco's 300-410

Question #: 263
Topic #: 1

A network administrator must optimize the segment size of the TCP packet on the DMVPN IPsec protected tunnel interface, which carries application traffic from the head office to a designated branch. The TCP segment size must not overwhelm the MTU of the outbound link. Which configuration must be applied to the router to improve the application performance?

A. interface tunnel30 ip mtu 1400 ip tcp payload-size 1360 ! crypto ipsec fragmentation before-encryption
B. interface tunnel30 ip mtu 1400 ip tcp adjust-mss 1360 ! crypto ipsec fragmentation after-encryption
C. interface tunnel30 ip mtu 1400 ip tcp max-segment 1360 ! crypto ipsec fragmentation before-encryption
D. interface tunnel30 ip mtu 1400 ip tcp packet-size 1360 ! crypto ipsec fragmentation after-encryption

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Suggested Answer: B 🗳️

by HungarianDish_111 at May 11, 2023, 11:18 a.m.

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HungarianDish_111

Highly Voted 2 years ago

Selected Answer: B

As well as I see, only "B" contains valid commands. https://www.networkworld.com/article/2224654/mtu-size-issues.html https://networkengineering.stackexchange.com/questions/11283/pre-fragmentation-for-ipsec-vpns-on-cisco-routers

upvoted 7 times

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Most Recent 10 months ago

Selected Answer: B

B is corerct

upvoted 1 times

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