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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIP-Datacom-Advanced Routing & Switching Technology V1.0 |
| Exam Number: | H12-831_V1.0-ENU |
| Related Certifications: | HCIP-Datacom-Core Technology V1.0 |
| Exam Duration: | 90 minutes |
| Passing Score: | 600/1000 |
| Certificate Validity Period: | 3 years |
| Available Languages: | English, Japanese, Chinese |
| Exam Format: | Multiple-answer questions, Drag-and-drop, True or false, Short response, Single-answer questions |
| Real Exam Qty: | 60 |
| Exam Price: | USD 180 |
| Recommended Training: | Huawei Official Training |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | Huawei H12-831_V1.0-ENU Sample Questions |
| Exam Way: | Online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | Recommended to have HCIA-Datacom certification or equivalent knowledge; pass H12-821 as core exam |
| Official Syllabus URL: | https://e.huawei.com/en/talent/certification/exam/h12-831 |
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Huawei H12-831_V1.0 certification exam is a challenging test that validates the knowledge and skills of candidates in the field of routing and switching technology. H12-831_V1.0-ENU Exam covers a wide range of topics, from basic routing and switching to advanced topics like MPLS and QoS, and is designed to test the candidate's ability to think critically and solve complex problems. HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification is highly sought after by employers and provides candidates with a competitive advantage in the job market.
NEW QUESTION # 104
On a BGP/MPLS IP VPN network, _ _ is used to distinguish IPv4 prefixes with the same address space. In this case, IPv4 addresses are called VPNv4 addresses. (Enter the acronym in uppercase.)
Answer:
Explanation:
RD
Explanation:
The required acronym is RD , meaning Route Distinguisher .
Different customers connected through a BGP/MPLS IP VPN can use overlapping private IPv4 address spaces. An ordinary IPv4 prefix such as 10.1.1.0/24 is therefore insufficient to uniquely identify a customer route in the service provider's MP-BGP VPN routing table.
A PE adds an eight-byte RD to the IPv4 prefix, creating a globally unique VPNv4 route. Two customers may use the same IPv4 prefix, but different RDs make their VPNv4 routes distinct. For example:
RD 100:1 + 10.1.1.0/24
RD 200:1 + 10.1.1.0/24
These are separate VPNv4 routes.
The RD must not be confused with a Route Target. An RD distinguishes overlapping prefixes , whereas an RT controls which VPN instances import or export routes . Huawei documentation explicitly states that RDs distinguish IPv4 prefixes using the same address space and that IPv4 routes containing RDs are called VPN-IPv4 or VPNv4 routes. Huawei BGP/MPLS IP VPN concepts
NEW QUESTION # 105
During an attempt to log in to a NetEngine AR6120 through the console port, the network engineer finds that the password is incorrect and the login fails. If a Telnet account can be used to log in to the device and the account has the permission to change the console port password, the network engineer can log in to the device through Telnet to change the console port password.
Answer: B
NEW QUESTION # 106
In PLSVPN, in order to distinguish IPv4 prefixes that use the same address space, the value of R0 is added to the IPv4 address. The correct description of the following options is:
Answer: A,C
NEW QUESTION # 107
On the network shown in the figure, the network administrator deploys DHCP snooping on the switch to defend against bogus DHCP server attacks.
Which of the following interfaces should be configured as the DHCP trusted interface?
Answer: C
Explanation:
Comprehensive and Detailed In-Depth Explanation:
Understanding DHCP Snooping and Trusted/Untrusted Ports
1. What is DHCP Snooping?
* DHCP Snooping is a security feature that prevents rogue DHCP servers from providing unauthorized IP configurations to clients.
* It categorizes switch ports into:
* Trusted Ports: Allow DHCP Offer and ACK messages from a legitimate DHCP server.
* Untrusted Ports: Block unauthorized DHCP responses to prevent rogue DHCP attacks.
Analyzing the Network Setup in the Figure
Interface
Connected Device
DHCP Role
Should it be Trusted?
GE0/0/1
PC1 (DHCP Client)
Requests DHCP leases
# Untrusted
GE0/0/2
DHCP Server (Legitimate)
Provides DHCP leases
# Trusted
GE0/0/3
Web Server
Not involved in DHCP
# Untrusted
GE0/0/4
Bogus (Rogue) DHCP Server
Malicious DHCP Server
# Untrusted & Blocked
* GE0/0/2 is connected to the legitimate DHCP server, meaning it should be marked as a TRUSTED interface.
* GE0/0/4 connects to a bogus DHCP server, which must be UNTRUSTED to block unauthorized DHCP responses.
* GE0/0/1 (Client) and GE0/0/3 (Web Server) do not need to be trusted.
# Thus, the correct answer is: D. GE0/0/2.
Final Conclusion:
# GE0/0/2 should be configured as the trusted DHCP interface.# GE0/0/1 (Client) should remain untrusted.# GE0/0/3 (Web Server) does not need DHCP trust.# GE0/0/4 (Bogus DHCP Server) should be blocked.
Thus, the correct answer is: D. GE0/0/2.
NEW QUESTION # 108
Which of the following commands can be used to view BGP VPNv4 routing and BGP private network routing information on PE?
Answer: B
NEW QUESTION # 109
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