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Huawei H12-731-ENU Exam Syllabus Topics:

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

1. Which of the following attacks is a network layer attack?

A) Constructs a packet with abnormal TCP flag bit, causing the host to process abnormally.
B) Constructing a large number of SYN packets, leading to exhaustion of host resources.
C) Construct a packet with an incorrect IP fragment flag bit, causing the host to process exceptions.
D) A packet with an incorrect TTL value is constructed, causing the device to process abnormally.

2. In the USG, the planning UTM statement is correct:

A) The firewall link-state inspection mechanism must be enabled first.
B) UTM cannot be used in dual-system hot backup load balancing scenarios.
C) SA function requires license support.
D) UTM can support inconsistent return path networking.

3. Which statement about MTU and PMTU is correct?

A) MTU (Maximum Transfer Unit) refers to the size of the largest data packet that can be transmitted in the network, in bytes.
B) PMTU detection is to obtain the PMTU value of the specified destination IPv4 address through detection, and then use the MTU value to send packets.
C) In an IP network, interfaces with different MTU values may be passed from the source address to the destination address, and the largest MTU value is the PMTU of the path.
D) The device will check the MTU on the inbound interface, and if the packet size exceeds the MTU value, it will be discarded.

4. When the network traffic is heavy, if you do not want the downstream network to be congested or directly discard a large number of packets due to the excessive data traffic sent by the upstream, you can limit and cache the traffic on the outbound interface of the upstream device, so that such packets can be compared with each other. Send out at an even speed.
This technique can be:

A) WRED
B) GTS
C) Car
D) CBWFQ

5. The log information output of the USG firewall is as follows:
%2014-07-31 11:15:45 USG6600 %%01BLACKLIS/4/BIkListAddOk(I):
A blacklist entry was changed.
(SyslogId=100, IpVemion=IPv4, SrcIp=172.18.9.2, DstIp=any, SrcPort=any, DstPort=any, Protocol=any, Use=any, VfwId=0, Vfw=public, List_Type=blacklist, Reason=Login incorrect password, Action=Add, DstPort=any, Timeout=10 min)
%2014-07-31 11:15:44 USG6600 %%01HTTPD/4/FAIL (I): User admin (IP: 172.18.9.2 ID: 27) login failed
%2014-07-31 11:15:44 USG6600 %%01AAA/4/LOCK (I): The user was locked out. (User Name =admin, Lock Time=10, Lock Reason=password incorrect for 3 times)
The following descriptions are correct:

A) The user tries to log in three times, all of them enter the wrong password, and the user's IP address is locked.
B) The user can try to log in again after changing the IP address to 172.18.9.3.
C) The user tries to log in three times, all of them enter the wrong password, and the user account is locked.
D) The user can only log in to the device again after 2014-07-31 11:30:45.

Solutions: