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最新的 Huawei Certified ICT Expert H12-891_V1.0 免費考試真題 (Q313-Q318):

問題 #313
In the following figure, aGRE tunnelis established betweenR1andR2. If the command ping -a 10.1.1.1
10.3.1.1 is run onR1, which of the following statements is correct about theICMP packetsent byGE0/0/1ofR1
?

A. The packet will be encapsulated using GRE, and the source and destination IP addresses in the inner IP header are10.1.1.1and10.0.12.2, respectively.
B. The packet will be encapsulated using GRE, and the source and destination IP addresses in the outer IP header are10.0.12.1and10.0.12.2, respectively.
C. The packet will be encapsulated using GRE, and the source and destination IP addresses in the outer IP header are10.0.12.1and10.3.1.1, respectively.
D. The packet will be encapsulated using GRE, and the source and destination IP addresses in the inner IP header are10.1.1.1and10.3.1.1, respectively.

答案：B,D

解題說明：
Comprehensive and Detailed In-Depth Explanation:
1. GRE Tunnel Configuration Details:
GRE (Generic Routing Encapsulation)is used to encapsulate packets for transmission between two endpoints.
The tunnel is created betweenR1andR2:
R1 Tunnel IP:10.1.1.1
R2 Tunnel IP:10.3.1.1
Source IP of Tunnel:10.0.12.1 (R1)
Destination IP of Tunnel:10.0.12.2 (R2)
The command used: ping -a 10.1.1.1 10.3.1.1
Source IP (Inner IP):10.1.1.1
Destination IP (Inner IP):10.3.1.1
2. GRE Encapsulation Process:
When thepingcommand is executed from R1 to R2 through the GRE tunnel:
Theoriginal ICMP packetwill have:
Source IP:10.1.1.1
Destination IP:10.3.1.1
This ICMP packet (inner packet) will be encapsulated using GRE.
GRE Encapsulation:
Outer IP Header:
Source IP:10.0.12.1 (R1 GE0/0/1 interface)
Destination IP:10.0.12.2 (R2 GE0/0/1 interface)
Inner IP Header:
Source IP:10.1.1.1 (Tunnel0/0/0 on R1)
Destination IP:10.3.1.1 (Tunnel0/0/0 on R2)
Theouter IP headeris used fortunnel routingbetween thephysical interfaces(GE0/0/1).
Theinner IP headerrepresents thelogical tunnel IPsused for communication between R1 and R2.
3. Correct Answer Analysis:
Option A:
Correct.
Theouter IP headeraddresses are10.0.12.1and10.0.12.2, representing thephysical interfaces (GE0/0/1)used to establish the tunnel.
Option C:
Correct.
Theinner IP headeraddresses are10.1.1.1and10.3.1.1, representing thelogical tunnel interfacesused for communication.
4. Why Other Options Are Incorrect:
Option B:
Incorrect.
Thedestination IP in the outer headershould be thepeer physical IP (10.0.12.2), not the tunnel IP (10.3.1.1).
Option D:
Incorrect.
Theinner IP destinationis thetunnel IP (10.3.1.1), not thephysical IP (10.0.12.2).

問題 #314
What descriptions of the OSPF protocol are correct?

A. The cost value of the second type of external route is only the AS external cost value, ignoring the AS internal cost value
B. AS-External-LSA describes the router's path to ASBR
C. AS-External-LSA does not belong in any region
D. AS-External-LSA describes the path to the as outside of the route, and the scope of the flood is the AS outside

答案：A,C

問題 #315
Which of the following is the type ofnorthbound APIused byiMaster NCE-WAN?

A. RESTful
B. NETCONF
C. SNMP
D. CLI

答案：A

解題說明：
Comprehensive and Detailed Explanation:
#iMaster NCE-WANprovides aRESTful APIfor integration withthird-party applicationsandnetwork automation platforms.
#Why RESTful API?
UsesHTTP/HTTPSfor communication.
SupportsJSON and XMLdata formats.
Enablesorchestration, monitoring, and automation.
#Why Not Other Options?
#(A) NETCONF# Used fordevice-level configuration, notnorthbound APIs.
#(B) SNMP# Used fornetwork monitoring, notnorthbound integration.
#(C) CLI# Used formanual command execution, notAPI communication.
#Reference:Huawei HCIE Datacom - iMaster NCE-WAN Northbound API

問題 #316
BGP EVPN does MAC address advertisement, ARP message advertisement, and IRB route advertisement for which BGP EVPN route is advertised?

A. Type2
B. Type4
C. Type1
D. Type3

答案：A

問題 #317
The correct description of the scene shown in the following figure is:

A. LSDB
B. R there is a route to R2 loopback0 100
C. R1, which exists in both Level-1 and Leve-2, can ping the interface address of R2 loopback0
D. No neighbor relationship can be established between R1 and R2

答案：A,B,D

問題 #318
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