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Huawei HCIE-Security (Huawei Certified Internetwork Expert-Security) Sample Questions:

1. Which route distribution modes does the SSL VPN network extension support?

A) split mode ( split )
B) full routing mode ( full )
C) Manual mode ( manual )
D) automatic mode ( auto )
E) dynamic mode ( dynamic )

2. Which of the following tasks need to be completed before configuring an IPsec security policy?

A) Configure IPsec Security Proposal
B) Configure IKE security proposals and IKE peers
C) Configure NAT Traversal
D) Configure DPD
E) Define the protected data stream

3. The WeChat voice (TCP) service of a site experienced a large delay, and the delay reached 3 seconds. As its egress NAT gateway, the firewall is configured with easy-ip nat mode (single egress), with link state detection disabled, TCP aging time of 30 seconds, small business traffic, and nearly 50,000 sessions to the voice server. Through the session, you can see a large number of packets of one-way access to the voice server.
What is the correct cause and solution for this failure?

A) After the firewall session is aging, the port after the NAT of the new connection is inconsistent with the port used to establish the connection with the server, resulting in no response from the server. The client needs to re-establish the connection after timeout before sending data.
B) The solution could increase the TCP aging time to 600 seconds.
C) The aging time of the TCF session is too short, and it takes time for the firewall to create a new session.
D) If there is no inconsistency between the round-trip paths on the link, you can enable the link status detection function, and the aging time is default, which can solve this problem.

4. Mobile employees access the headquarters through an L2TP over IPsec tunnel. The correct statement about planning and deployment is:

A) The security ACL of the USG gateway at the headquarters should be [USG] acl 3000 [USG-acl-adv-3000] rule permit udp source-port eq 1701
B) Since IKE V1 cannot assign addresses to remote users, address assignment must be achieved through L2TP.
C) L2TP generally uses NAS-Initialized mode.
D) The NAT traversal function cannot be used.

5. The customer has a USG6000, and the remote PC wants to access the intranet through l2tp over ipsec, but the dial-up through the vpn client software is unsuccessful.
1 View ike sa during dialing:
<USG6000>dis ike sa
20:54:36 2013/06/19
current ike sa number: 2
-------------------------------------------------- -----------------------------
conn-id peer flag phase vpn
-------------------------------------------------- ------------------------------
40051 <unnamed> NONE v1:2 public
40050 2.2.2.2:12485 NONE v1:1 public
2 debugging ipsec error:
2013-06-19 20:54:21 USG2100 %%01IKE/4/WARNING (I): phase2: security acl mismatch.
*0.46319980 USG IKE/7/DEBUG: Get IPsec policy: get IPsec policy failed
*0.46319930 USG IKE/7/DEBUG: validate_prop: no IPsec policy found
*0.46319980 USG IKE/7/DEBUG: dropped message from 2.2.2.2 due to notification type
INVALID ID INFORMATION
Which statement about this problem is correct?

A) IKE Phase 1 policy for IPsec is misconfigured
B) ACL configuration error
C) HASH algorithm mismatch
D) No IPsec policy configured

Solutions: