H3C GB0-391

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H3C Constructing Secure optimized WANs v2.0 Sample Questions:

1. Which of the following descriptions of MPLS lsr-id is correct is _______ .

A) lsr-id must be configured to be the same as the Router ID of the LSR
B) The format of lsr-id is the same as the IP address
C) lsr-id is used to identify an LSR device in the MPLS network
D) lsr-id is unique in MPLS network

2. In L2TP networking, false set LAC and LNS are case has been in the public network, and are correct Unicom, if Tunnel construction legislation fails, the possible causes are

A) Tunnel verification fails
B) On the LAC side , the address of the LNS is incorrectly set
C) The username and password set on the LAC side are incorrect
D) There is no L2TP group set on the LNS end that can receive the opposite end of the tunnel

3. In the EPCN network as shown in the figure , when sending data from CLT to users 1 , 2 , 3 , which of the following statements is correct?

A) CNU1 will receive packages 1 , 2 , and 3 and send them all to the end user 1
B) CNU1 will only receive package 1
C) CNU1 will receive packets 1 , 2 , and 3 , but it will only send packet 1 to end user 1 , and discard packets 2 and 3
D) terminating end user 1 will only receive the packet 1
E) terminating end user 1 receives packet 1 , 2 , 3 , but it accepts only the packet 1 , the packet is discarded 2 and packages 3

4. The configuration commands on the MSR router are as follows :
acl number 2000
rul e o permit source 192.168.0.0 0.0.0.255
acl number 2002
rule o permit source 192.168.2.0 0.0.0.255
#
traffic classifier 2 0perator and
if-match acl 2002
traffic classifier l operator and
if-match acl 2000
##
interface GigbitEthernet0/1
port link-mode route
duplex full
speed 10
ip address 192.168.1.1 255.255.255.0
qos reserved-bandwidth pct 90
qos appl polic test outbound
When the traffic rates of packets with source addresses of 192.168.0.2 , 192.168.2.2 , and 192.168.3.2 are 4Mbps , 4Mbps , 5Mbps , and no other background traffic is forwarded from port G0/l .
The incorrect statement under the team is ____ .

A) The forwarding rate of packets with the source address of 192.168.2.2 is about 4Mbps
B) The forwarding rate of packets with the source address of 192.168.2.2 is about 2.7Mbps
C) The forwarding rate of packets with the source address of 192.168.0.2 is about 2.7Mbps
D) The forwarding rate of packets with the source address of 192.168.2.2 is about 3Mbps
E) The forwarding rate of packets with the source address of 192.168.0.2 is about 4Mbps
F) The forwarding rate of packets with the source address of 192.168.0.2 is about 3Mbps

5. Which of the following statements about LR is incorrect is

A) bits at the link layer, all packets outgoing from the interface can take effect ( critical packets except packets )
B) so that the flow rate is measured using the token bucket algorithm, would exceed the committed rate of packets into the queue buffer again, it reduces the overall packet loss rate, smooth traffic, introduces additional delay.
C) Not valid for non- IP packets
D) It is an active traffic adjustment measure that limits the total rate of packets sent downstream from an interface

Solutions: