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H3C GB0-391 Exam Syllabus Topics:

H3C Constructing Secure optimized WANs v2.0 Sample Questions:

Question 1

When the queue reaches the most after a large value, the message will be used _____ embodiment discards

A. WRED
B. Press time sequence, discarding most to packets enqueued
C. Tail discard
D. RED

Question 2

Compared with IKE main mode, which of the following advantages does IKE aggressive mode have ?

A. In the case that both parties in communication can know the IP address of the initiator in advance and need to use the pre-shared key, the aggressive mode can be used
B. IKE aggressive mode is more secure than main mode
C. adopted by IKE aggressive mode can provide a speed negotiation
D. IKE aggressive mode can provide authentication

Question 3

If each of the teams it corresponds to a type of packets, the transmission ratio of the amount of each queue is sequentially increased, both 1: 2: 3: ...: most large number of queues, assume that the application speed of the schedule port If it is 100Mbps , then when each queue corresponds to a message that is forwarded at a speed of 20Mbps after the port is congested.Of 7 broadband packet queue corresponds may be used about as ______

A. 4.61%
B. 5.26%
C. 5.14%
D. 5.88%

Question 4

To get the best of VoIP voice quality, coding is the best choice.

A. G.723
B. G.711
C. G.729

Question 5

The configuration commands on the MSR router are as follows:
acl number 2001
rule 0 permit source 192.168.2.0 0.0.0.2
acl number 2002
rule 0 permit source 192.168.3.0 0.0.0.2
acl number 2003
rule 0 permit source 192.168.0.0 0.0.0.2
#
traffic classifier 2 operator or
if-match acl 2001
if-match acl 2002
if-match acl 2003
#
traffic behavior 2
filter den
#
qos polic 2
classifier 2 behavior 2
#
interface GigabitEthernet0/1
port link-mode route
ip address 192.168.1.1 255.255.255.0
qos appl polic 2 outbound
Then when the source address are 192.168.2.2 , 192.168.3.2.1 , 92.168.0.2 the packets from the port G0 / 1 forwarding outwardly, the following statement is correct ______

A. Packets with the source address of 192.168.2.2 are forwarded normally
B. Forwarding of packets whose source address is 192.168.2.2 is blocked
C. three message by the flow are blocked
D. Packets with the source address of 192.168.0.2 are forwarded normally

Solutions: