H12-821_V1.0 Exam Review, H12-821_V1.0 Reliable Dumps Book

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Huawei H12-821_V1.0 Certification Exam is an industry-recognized certification that is highly regarded by many organizations. HCIP-Datacom-Core Technology V1.0 certification exam is designed to test the knowledge and skills of candidates in the area of datacom core technology. Candidates who successfully pass this certification exam will be able to demonstrate their understanding of the latest technologies and best practices in datacom core technology.

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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q556-Q561):

NEW QUESTION # 556
The four routers run IS-S and have established an adjacency relationship. The area numbers and router levels are marked in the figure.

What is the cost of R4 reaching 10.0.2.2/32?

A. 0
B. 1
C. 2
D. 3

Answer: B

NEW QUESTION # 557
The traffic limiting policy feature only supports the number of connections initiated by the specified IP or the number of connections received.

A. FALSE
B. TRUE

Answer: A

Explanation:
The traffic limiting policy feature supports not only limiting the number of connections initiated by or received by an IP address but can also apply other traffic metrics such as bandwidth or packet rates. This expanded capability makes the statement false .

NEW QUESTION # 558
What parameters can a DHCP6 server assign to a DHCPv6 client?

A. IPV6 address/prefix
B. SNTP server address
C. Gateway address
D. DNS server address

Answer: A,B,D

Explanation:
Understanding DHCPv6:
DHCPv6 (Dynamic Host Configuration Protocol for IPv6) is used to assign configuration parameters to IPv6 clients.
It supports bothstatefulandstatelessmodes:
Stateful: Assigns IPv6 addresses and other configuration parameters.
Stateless: Assigns only configuration parameters (e.g., DNS server) without providing IPv6 addresses.
HCIP-Datacom-Core Technology Training Material (IPv6 Address Configuration and DHCPv6).
Analysis of Parameters:
A: Gateway address:
False. DHCPv6 does not assign the default gateway. Instead, the default gateway is advertised by routers usingRouter Advertisement (RA)messages in IPv6.
B: DNS server address:
True. DHCPv6 can assign the IPv6 address of DNS servers to the client.
C: IPv6 address/prefix:
True. In stateful mode, DHCPv6 assigns IPv6 addresses and prefixes to clients.
D: SNTP server address:
True. DHCPv6 can assign the address of an SNTP (Simple Network Time Protocol) server to synchronize time on the client.
Reference:HCIP-Datacom-Core Technology Training Material (DHCPv6 Configuration and Features).
Conclusion:
The correct parameters that a DHCPv6 server can assign to a client are:B. DNS server address, C. IPv6 address/prefix, D. SNTP server address.

NEW QUESTION # 559
The following is a partial configuration of a router.
The correct description of this configuration is:

A. The data packet whose source address is 1.1.1.3 matches the third ACL statement rule 2, and the matching rule is Deny.
B. The data packet whose source address is 1.1.1.1 matches the first ACL statement rule 0, and the matching rule is Allow.
C. The data packet whose source address is 1.1.1.4 matches the fourth ACL statement rule 3, and the matching rule is Allow.
D. The data packet whose source address is 1.1.1.2 matches the second ACL statement rule 1, and the matching rule is Allow.

Answer: B

NEW QUESTION # 560
GRE is a VPN technology that can implement packet transmission over heterogeneous networks. Which of the following statements are true about GRE?

A. GRE tunnels can extend the working range of network protocols with hop limits.
B. GRE enables encapsulated data packets to be transmitted over another network layer protocol, butcannot encapsulate multicast data.
C. GRE tunnels can work with IPsec to ensure the security of multicast services such as voice and video.
D. GRE is a Layer 2 VPN encapsulation technology.

Answer: A,C

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. What is GRE (Generic Routing Encapsulation)?
GRE is a tunneling protocol that allows the encapsulation of various types of packets (e.g., IPv4, IPv6, multicast, etc.) to be transmitted over another protocol (e.g., IP).
GRE is used to create point-to-point connections over heterogeneous networks.
2. Analysis of Each Option:
Option A: GRE is a Layer 2 VPN encapsulation technology.
Incorrect.
GRE operates at Layer 3 (Network Layer) and encapsulates Layer 3 packets. It is not a Layer 2 VPN encapsulation technology like MPLS or Ethernet-over-IP.
Option B: GRE enables encapsulated data packets to be transmitted over another network layer protocol, but cannot encapsulate multicast data.
Incorrect.
GRE supports the encapsulation and transmission of multicast data packets. This is one of its key features, making it suitable for protocols like OSPF and multicast applications.
Option C: GRE tunnels can work with IPsec to ensure the security of multicast services such as voice and video.
Correct.
GRE by itself does not provide encryption or security. However, GRE can work with IPsec to secure the encapsulated traffic, including multicast data, for services like voice and video.
Option D: GRE tunnels can extend the working range of network protocols with hop limits.
Correct.
GRE encapsulates packets, effectively resetting their hop limits and allowing protocols with limited hop counts (e.g., RIP) to work over larger networks.
3. Summary:
The correct options areCandD.
Reference:
Huawei HCIA-Datacom Study Guide, Chapter "GRE Tunnel Technology."
RFC 2784: Generic Routing Encapsulation (GRE).

NEW QUESTION # 561
......

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