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100% Pass Quiz H12-821_V1.0 - Fantastic Exam HCIP-Datacom-Core Technology V1.0 BibleHowever, the appearance of our H12-821_V1.0 certification materials will solve your question and change your impression of H12-821_V1.0 certification exam. You will find it is easy to pass the H12-821_V1.0 certification exam. What¡¯s more, contrary to most of the exam preparation materials available online, the H12-821_V1.0 certification materials of H12-821_V1.0 can be obtained at a reasonable price, and its quality and advantages exceed all similar products of our competitors. All our customers have successfully passed the exam. H12-821_V1.0 certification materials will enable you to obtain the actual certification within days, and will be the best choice for your time and money. Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q229-Q234):NEW QUESTION # 229
The Neighbor Discovery Protocol (NDP) is an important basic protocol in the IPv6 protocol suite and plays an important role. Which of the following functions and features does it support?
A. Address resolution
B. Redirection
C. Neighbor state tracing
D. Duplicate address detection
Answer: A,B,C,D
Explanation:
Neighbor Discovery Protocol (NDP):
* NDP is a key protocol in the IPv6 protocol suite, replacing ARP (Address Resolution Protocol) in IPv4.
* It operates using ICMPv6 (Internet Control Message Protocol for IPv6) and is critical for managing interactions between IPv6 nodes on the same link.
HCIP-Datacom-Core Technology Training Material (NDP Functions and Features).
NDP Features and Functions:
A). Address resolution:NDP resolves IPv6 addresses into MAC addresses, similar to ARP in IPv4. It uses Neighbor Solicitation (NS) and Neighbor Advertisement (NA) messages for this purpose.Reference: HCIP- Datacom-Core Technology Training Material (Address Resolution in IPv6).
B). Neighbor state tracing:NDP tracks the state of neighbors to determine their reachability. It maintains a neighbor cache and uses NS/NA messages to verify whether neighbors are reachable.Reference: HCIP- Datacom-Core Technology Training Material (Neighbor Reachability in IPv6).
C). Duplicate address detection (DAD):NDP ensures that IPv6 addresses are unique within a network.
Before assigning an address to an interface, DAD is used to verify that no other node is using the same address. This is done via NS messages.Reference: HCIP-Datacom-Core Technology Training Material (IPv6 Address Assignment and DAD).
D). Redirection:NDP provides redirection functionality to inform hosts of a better first-hop router for reaching a particular destination. It uses ICMPv6 Redirect messages for this purpose.Reference: HCIP-Datacom- Core Technology Training Material (NDP Redirect Functionality).
Conclusion:NDP supports all the mentioned functions and features: Address resolution, Neighbor state tracing, Duplicate address detection, and Redirection, making it indispensable for IPv6 networks.
NEW QUESTION # 230
On an RSTP network, port priorities may be compared during root port or designated port election. Which of the following values is the default priority of a port on a Huawei switch?
A. 0
B. 1
C. 2
D. 3
Answer: D
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. Port Priority in RSTP:
* RSTP (Rapid Spanning Tree Protocol) elects root and designated ports based on port priority and port ID.
* Port priority is a configurable value that helps determine which port becomes the root or designated port when multiple ports are eligible.
* The port ID consists of the port priority and port number. When priorities are equal, the port number is used as a tiebreaker.
2. Default Port Priority on Huawei Switches:
* On Huawei switches, the default port priority is 128.
* This value can be adjusted in increments of 16 using the command stp port priority.
3. Analysis of Options:
Option A: 1
* Incorrect. This is not the default port priority value.
Option B: 128
* Correct. This is the default port priority value on Huawei switches.
Option C: 4096
* Incorrect. This is not a valid default port priority value.
Option D: 32768
* Incorrect. This is the default bridge priority, not the port priority.
4. Summary:
* The default port priority on Huawei switches is 128.
:
Huawei HCIA-Datacom Study Guide, Chapter "RSTP Port Role Election."
IEEE 802.1D-2004: Rapid Spanning Tree Protocol (RSTP).
NEW QUESTION # 231
In special scenarios, when advertising routes to an IBGP peer, a BGP device needs to set the next hop to its IP address to prevent blackhole routes. Which of the following commands can be run in this case?
A. peer next-hop-local
B. peer next-hop-invariable
C. peer mpls-local-ifnet
D. peer private-nexthop
Answer: A
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
* Blackhole Route Issue in BGP:
* In IBGP, the next hop of a route learned from an EBGP peer is not changed by default. If an IBGP peer cannot reach the next hop, blackhole routes may occur.
* To prevent this, the peer next-hop-local command is used to set the next hop to the local router's IP address.
* Other Commands:
* peer mpls-local-ifnet: Used in MPLS networks to set the next hop as the local interface address.
* peer private-nexthop: Allows advertising private IP addresses as the next hop.
* peer next-hop-invariable: Ensures the next hop is not modified during route advertisement, which is the opposite of what is required here.
References:
* HCIA-Datacom Study Guide, Chapter: BGP Next Hop Behavior
* Huawei BGP Configuration Commands
NEW QUESTION # 232
As shown in the figure, R1 and R2 have configured the local sending time interval, the local receiving time interval and the local BFD detection multiple.
Which of the following descriptions of the time parameters after RI negotiation are correct? (Multiple choice)
A. The reception time after R1 negotiation is 200 milliseconds
B. The sending time after R1 negotiation is 150 milliseconds
C. The sending time after R1 negotiation is 50 milliseconds
D. The reception time after R1 negotiation is 150 milliseconds
Answer: A,C
NEW QUESTION # 233
LAN mapping table is an attribute of the IST domain and is used to describe the mapping relationship between VLAN and MSTI. Each VLAN can correspond to multiple ISTIs, and one MST can correspond to multiple VLANs.
A. TRUE
B. FALSE
Answer: B
NEW QUESTION # 234
......
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