Free Access Huawei.H31-161.v2022-05-30.q78 Practice Test (Page 9)

Question 36

The RADIUS or Huawei Terminal Access Controller Access Control System (HWTACACS) protocol can be used for authentication during network access. Which of the following statements about these two protocols are false?

A.The HWTACACS uses TCP to transmit data while the RADIUS uses UDP to transmit data.

B.Both the HWTACACS and RADIUS encrypt all data in the packet body.

C.The RADIUS uses the Triple Data Encryption Standard (3Des) to encrypt passwords and some important data packets. The RADIUS provides a higher level of security than the HWTACACS.

D.The RADIUS implements authentication and authorization separately to improve security

Question 37

The edge routers of the MPLS network, partial interface configurations on the IP access side are as follows:
[Quidway]diffserv domain default
[Quidway-dsdomain-default]ip-dscp-inbound 10 phb ef green
[Quidway-dsdomain-default]mpls-exp-outbound ef green map 5
[Quidway-dsdomain-default]mpls-exp-inbound 4 phb ef green
[Quidway-dsdomain-default]ip-dscp-outbound ef green map 18
[Quidway-dsdomain-default]quit[Quidway] interface GigabitEthernet 2/0/0
[Quidway-GigabitEthernet2/0/0] trust upstream default
[Quidway-GigabitEthernet2/0/0] port-queue ef pq shaping 20 outbound
Which of the following statements about the preceding configurations are true?

A.If an IP packet with a DSCP value of 10 is sent to the MPLS network (non-PHP node) from GigabitEthernet 2/0/0, the corresponding EXP value is 5. If an MPLS packet with an EXP value of 4 is sent from GigabitEthernet 2/0/0, the DSCP value of the corresponding IP packet remains unchanged.

B.When GigabitEthernet 2/0/0 sends IP packets, the bandwidth of these sent IP packets can reach 1 Gbit/s if the EXP value is 4.

C.The port-queue ef pq shaping 20 outbound command configures PQ scheduling and a maximum of 20 Mbit/s bandwidth for the EF queue when GigabitEthernet 2/0/0 sends IP packets.

D.The trust upstream default command maps the DSCP priority to the corresponding EXP value when an IP packet enters the MPLS network and maps the EXP value to the corresponding DSCP priority when an IP packet leaves the MPLS network.

Question 39

Exhibit:

As shown in the figure, RTA connects to RTB and RTC A TE tunnel is configure on RTA to reach RTC. The TE tunnel cannot be successfully established. However, CSPF-based calculation is successful and RTA does not receives any PathErro messages. What are possible causes?

A.The reserved bandwidth is insufficient at interface RTB-2

B.RSVP-TE is not configured at interface RTB-2.

C.An interface address on RTP is the same as the address of interface RTA-1.

D.Different authentication keys are configured on interface RTB-2 and RTC-1.

Question 40

Refer to the exhibit.

OSPF process 1 is started on RTA and assigned to the vpn1 instance.
After the vpn-instance-capability simple command is configured in the OSPF view, which of the following statements are false?

A.When RTA imports a BGP route from OSPF process 1, an extended community identification must be carried to specify the OSPF attributes of the route.

B.Bit B is not set in the router LSA generated by RTA in area 1.

C.When RTA receives a Type 3 summary LSA with the DN bit in area 1, it ignores the calculation of the LSA.

D.After RTA imports a BGP route from the MPLS VPN backbone network, if Domain ID of the BGP route is the same as that used in the local OSPF area and the BGP route is an intra-area route, a Type 3 summary LSA is generated and flooded to area 1.

Question 41

Which of the following statements about the working principle f LDAP FRR are true?

A.LDP TFRR can be deployed on the ingress node and the intermediate node. The primary and backup
LSPas are recorded in the ILM table on the intermediate node and on the FIB table on the ingress node.

B.After LDP FRR is enabled, a backup LSP is generated both the primary and backup LSPs are stored in
the forwarding table.

C.After LDP FRR enable, a backup can degenerated for a primary LSP to prevent serious packet loss
during fats flapping of the primary LSP.

D.Multiple LSPs can be up on the ingress node, that is entries about multiple backup LSPs are generated in
the forwarding table according to the priority of the FRR, implementing multi-layer protection.

Other Version: 2172Huawei.H31-161.v2022-12-15.q82; 2722Huawei.H31-161.v2022-04-14.q86

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Question 36

Question 37

Question 39

Question 40

Question 41

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