本帖最后由 小乔 于 2015-7-30 15:51 编辑 & J) L1 e. B; D4 e& Z
2 }. L. M- o. A. x2 i. H
. t, m3 I' p+ g; [
* u( \# z, @' H5 _: w. G/ H* v: b5 R
根据考生回忆的新题,题目不全,答案仅供参考
8 g" ?! ~" s5 v- }1-Two routers cannot communicate via tunnel, what would you troubleshoot 1st?. a) Tunnel connectivity. b) Irrelevant c) Irrelevant d) The NHRP. Answer: A ! e# t# m$ b, r- t
21- DMVPN: before testing IPsec what would you test? a) NHRP b) mGRE tunnels c) crypto map d) ISAKMP Answer:B
! ^4 L4 ^$ @: Y/ Z! J D$ L8 l% n! N1 V/ z6 ^9 U
** NOTE There are different versions of the GRE/IP Sec tunnel questions, so don’t memorize, learn them guys. ** 2- After configuring GRE between two routers running OSPF/EIGRP (BUG in exam) that are connected to each other via a WAN link, a network engineer notices that the two routers cannot establish the GRE tunnel to begin the exchange of routing updates. What is the reason for this? a) Either a firewall between the two routers or an ACL on the router is blocking IP protocol number 57. b) Either a firewall between the two routers or an ACL on the router is blocking TCP 47. c) Either a firewall between the two routers or an ACL on the router is blocking IP protocol number 47. d) Either a firewall between the two routers or an ACL on the router is blocking UDP 47. Answer: C ; v0 F) O$ T: t# r2 h) q: m
5-Refer to the exhibit. A new TAC engineer came to you for advice. A GRE over IPsec tunnel was configured, but the tunnel is not coming up. What did the TAC engineer configure incorrectly? a) The crypto isakmp configuration is not correct. b) The crypto map configuration is not correct. c) The interface tunnel configuration is not correct. d) The network configuration is not correct; network 172.16.1.0 is missing Answer:A http://www.digitaltut.com/ipsec) and) gre You will have to go into the config, do a couple verification “show” commands and figure out the answer accordingly. . X! v% o, q" ~+ A+ j) g
0 [( c* U6 K* ?3 e t7 h
6 d- X5 |( r$ v& Q1 x3 L) n F5 H% g; K+ n+ s1 e& j
+ e1 Y- G: H- I- m& Z* ^
+ ?, z6 A& c/ {/ N8 t) F, X |