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NEW QUESTION # 65
::1/128 is the IPV6 loopback address
- A. TRUE
- B. False
Answer: A
NEW QUESTION # 66
What designs in the router can improve the reliability of the router?
- A. Module hot-swappable design
- B. Issu Design
- C. Dual power supply design
- D. Dual-engine design
Answer: C,D
NEW QUESTION # 67
What is the relationship between CIR, BC, and TC?
- A. CIR=TC/BC
- B. TC=BC/CIR
- C. TC=CIR/BC
- D. CIR=BE/TC
Answer: B
NEW QUESTION # 68
Which of the following statements is correct about the differences between NSR and NSF?
- A. NSF does not require the collaboration of neighboring routers.
- B. NSF requires the collaboration of neighboring routers.
- C. Both NSR and NSF require the collaboration of neighboring routers.
- D. NSR requires the collaboration of neighboring routers.
Answer: B
Explanation:
Comprehensive and Detailed In-Depth Explanation:
NSR (Non-Stop Routing)andNSF (Non-Stop Forwarding)are high-availability mechanisms used to maintain network stability during routing process failures:
NSR (Non-Stop Routing):
Operates within thelocal router only.
Keeps routing information synchronized between theactive and standby processes.
Does not require collaboration from neighboring routers.
NSF (Non-Stop Forwarding):
Requires collaboration from neighboring routersthat support graceful restart.
The router undergoing failover relies on its neighbors tomaintain forwarding tableswhile control plane recovery takes place.
Neighboring routers must supportGR (Graceful Restart)for NSF to function correctly.
Therefore, the correct answer isBbecauseNSF requires neighboring router collaboration, whileNSR does not.
NEW QUESTION # 69
In the admission design for large- and medium-sized campus networks, which of the following authentication modes can be used for PCs connected to IP phones?
- A. Multi-mode authentication
- B. Portal authentication
- C. 802.1X authentication
- D. MAC address authentication
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
In large- and medium-sized campus networks,Multi-mode authenticationis commonly used for PCs connected to IP phones. This is because multi-mode authentication allows:
Multiple authentication methods on the same interface,such as MAC address authentication for the IP phone and802.1X authentication for the PC.
This setup is ideal for scenarios where both devices share a single network port but require different authentication mechanisms.
MAC address authentication (A)and802.1X authentication (B)individually cannot accommodate both devices efficiently.
Portal authentication (D)is mainly used for guest access and is not practical for IP phone and PC connections.
NEW QUESTION # 70
The following about BGP routing, what is the wrong description?
- A. See the following entry in the BGP routing table: * *17 16 1. 11/32 0 00010 0? Indicates that the route is available non-optimal.
- B. Non-aggregate routes take precedence over aggregate routes.
- C. For next_hop unreachable routes are invalid cat by and do not participate in the preference. Flogging case
- D. In the case of PrefVal, Local_Preference equality, if the BGP preference of the locally generated route, IBGP route, EBGP route is equal, the valid reference of this generation is preceded by priority.
Answer: B
NEW QUESTION # 71
Which of the following LSAs propagate in a single region only?
- A. Network LSA
- B. Summary LSA
- C. AS External LSA
- D. Router LSA
Answer: A,B,D
NEW QUESTION # 72
NETCONF provides a set of mechanisms for managing network devices. NETCONF operations take place on a configuration datastore of network devices. Which of the following statements is incorrect about the configuration datastore?
- A. The configuration datastore of network devices can be classified into the candidate, running, and startup configuration datastores.
- B. The <delete-config> operation is oriented at the startup configuration datastore.
- C. The <commit> operation submits the configuration in a startup configuration datastore to a running configuration datastore.
- D. The <validate> operation is oriented at the candidate configuration datastore.
Answer: C
Explanation:
NETCONF definesdatastoresto manage device configurations:
running: Active configuration in use
candidate: Staging area for changes before applying
startup: Configuration loaded on reboot
NETCONF operations:
<commit>: Applies changes fromcandidate # running##
<delete-config>: Deletes a specified datastore (e.g., startup) ##
<validate>: Validates syntax/logic in thecandidate datastore##
Statement D is incorrect:<commit> never submits config from startup to running- that's handled automatically at boot time, not through NETCONF commands.
Correct answer: D
NEW QUESTION # 73
On the campus network shown, IPv6 is deployed for service tests. Four routers are deployed on the network, and OSPFv3 is used for IPv6 network connectivity. An engineer checks the LSDB of R2 and obtains a Link- LSA. Which of the following statements about the LSA are correct?
- A. The link-local address of R2's GE0/0/0 is FE80::2E0:FCFF:FECD:4F79.
- B. This LSA indicates that R2 does not support external routes but can participate in IPv6 route calculation.
- C. The IPv6 address prefix of R2's GE0/0/0 is 2001:DB8:2345:23::/64.
- D. This LSA is generated by R2.
Answer: A,C,D
Explanation:
InOSPFv3,Link-LSA (Type 8)is generated by a routerfor each of its interfacesto advertise:
Therouter's link-local addresson that interface.
TheIPv6 prefixesassociated with the interface.
Flags and options, such as router priority or loopback indicators.
From the output:
Link-LSA (Interface GigabitEthernet0/0/0)
Originating Router: 10.1.2.2
Link-Local Address: FE80::2E0:FCFF:FECD:4F79
Prefix: 2001:DB8:2345:23::/64
A: The link-local address of R2's GE0/0/0 is FE80::2E0:FCFF:FECD:4F79# This matches the Link-Local Address field in the LSA.# B: The IPv6 address prefix of R2's GE0/0/0 is 2001:DB8:2345:23::/64# This matches the Prefix field in the LSA.# C: This LSA indicates that R2 does not support external routes but can participate in IPv6 route calculation##Incorrect.
TheLink-LSAdoesnot provide any indicationabout external route capabilities.
It simply advertisesinterface-specific IPv6 and link-local info.
Whether R2 supports external routes depends onType 5 (External) or Type 7 (NSSA) LSAs, not Link-LSAs.
D: This LSA is generated by R2# The Originating Router: 10.1.2.2 is R2's router ID, so this LSA is definitely generated by R2.# Correct Answers:A, B, D The Link-LSA in OSPFv3 contains:
The link-local address used by the originating router on the link.
A list of all IPv6 prefixes associated with the link.
Flags such as router priority and the Router-LSA options.
These LSAs are alwaysgenerated by the router itselfand arenot flooded beyond the link.
NEW QUESTION # 74
In the LDP session establishment process, the initiator sends an Initialization message for parameter negotiation. Which message will be sent by the responder if it does not accept negotiation parameters?
- A. Error Notification Message
- B. Hello Message
- C. Keepalive Message
- D. Initialization Message
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
In the Label Distribution Protocol (LDP) session establishment process, theInitialization messageis sent by the initiator to propose parameters for the session. If the responder finds that the proposed parameters are not acceptable, it responds with anError Notification Message. This message indicates that the session could not be established due to incompatible or incorrect parameters.
TheError Notification Messagetypically includes details about why the session could not be established, such as parameter mismatch or unsupported features. If the parameters are acceptable, the responder would instead reply with aKeepalive Messageto maintain the session.
NEW QUESTION # 75
On an SR-MPLS network, manually configured prefix SIDs on different devices may conflict with each other.
Assume that there are four routes (prefix/mask SID) as follows. Which of the following routes will be selected according to the conflict handling principle?
- A. 1.1.1.1/32 # SID 1
- B. 2.2.2.2/32 # SID 3
- C. 3.3.3.3/32 # SID 1
- D. 1.1.1.1/32 # SID 2
Answer: C
Explanation:
InSR-MPLS (Segment Routing over MPLS),prefix SID conflictsmay occur if multiple prefixes are assigned the same SID or vice versa.
Conflict resolution principle (Huawei standard):
When there aremultiple SIDs for the same prefix, theSID with the lowest value wins.
Whenthe same SID is assigned to multiple prefixes, theprefix with the smallest addresswins.
Apply to this case:
Conflict: Two entries for1.1.1.1/32withSID 2 and SID 1.
SID 1 is lower, so1.1.1.1/32 # SID 1is selected.
Correct answer: D. 1.1.1.1/32 # SID 1
NEW QUESTION # 76
Router RL runs the OSPF protocol and uses the display ip routing-tabe command to view the router RL's routing table , the following information about OSPF in the routing table is described correctly as ?
- A. In the routing table, Route table entries identified with the "O_ASE identifier can only be learned through routing introduction
- B. In the routing table, used The 'OSPF' identifier identifies a route table entry that can only pass a Type 1 LSA
- C. In the routing table, the routing table entries identified with the 'OSPF identifier' can be learned through the 1/2/3/5 LSA to
- D. In the routing table, the routing table entries identified by the OSPF identifier can only be learned through the 3 types of LSAs to
Answer: A
NEW QUESTION # 77
Which of the following inter-AS MPLS L3VPN solutions needs ASBRs to transmit VPNv4 routes?
- A. Option D
- B. Option C
- C. Option A
- D. Option B
Answer: D
Explanation:
Comprehensive and Detailed Explanation:
Inter-AS MPLS L3VPN Option B requires ASBRs to exchange VPNv4 routes using eBGP with label information.
Analysis of Inter-AS VPN Solutions:
A screenshot of a computer AI-generated content may be incorrect.
Option B uses eBGP to exchange labeled VPNv4 routes between ASBRs but does not require MPLS between ASBRs.
Option A does not exchange VPNv4 routes over ASBRs (uses IP routing instead).
Option C uses MP-BGP and requires full MPLS between ASBRs.
Since Option B requires ASBRs to exchange VPNv4 routes, the correct answer is B.
# Reference: Huawei HCIE Datacom - MPLS Inter-AS VPNs
NEW QUESTION # 78
Vxlan is based on UDP encapsulation, which encapsulates Ethernet data frames on top of UDP in IP packets, so it is called MAC in UDP encapsulation
- A. True
- B. False
Answer: A
NEW QUESTION # 79
The correct description of the scene shown in the following figure is:
- A. LSDB
- B. R1, which exists in both Level-1 and Leve-2, can ping the interface address of R2 loopback0
- C. R there is a route to R2 loopback0 100
- D. No neighbor relationship can be established between R1 and R2
Answer: A,C,D
NEW QUESTION # 80
In an IPv6 network, two nodes A and B are neighbors to each other if node A sends to node B NS message, if Node B receives the message and then replies to the NA message, then on Node A On the view, the neighbor status will be marked as What?
- A. Incomplete
- B. Reachable
- C. Probe Answer
- D. Constant
Answer: B
NEW QUESTION # 81
The network administrator defines a traffic policing policy as follows:
- A. 80128 bytes
- B. 48128 bytes
- C. 256K bytes
- D. 32K bytes
Answer: D
NEW QUESTION # 82
The following description of Filter-Policy is correct?( Radio neck).
- A. Prefix lists can be used to filter both routes and packets.
- B. With Filter-Policy, on ASBR in OSPF, you can filter the generation of type5 LSA and type7LSA.
- C. Filter-policy filters the link state information received or published, and can modify the properties of route entries.
- D. When using a prefix list to filter routes, the table entry ip-prefix 1 deny 0000 0 less-equal
32 matches only the default route.
Answer: B
NEW QUESTION # 83
Why is BGP an enhanced distance vector routing protocol?
- A. BGP uses the ASPATH attribute to record all autonomous system numbers that a route passes through into an AS list, and based on that attribute, routes with shorter AS-PATH are preferred
- B. NEXT_HOP is a recognized mandatory attribute
- C. According to the routing rules of BGP routing, the route with lower MED is preferred
- D. BGP cannot accept routes that carry a local AS number in the AS_PATH
Answer: A
NEW QUESTION # 84
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