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To prepare for the Huawei H12-891_V1.0 exam, candidates are required to have a good understanding of datacom technology, network management, and network design. Candidates should also have practical experience in configuring and troubleshooting network setups. There are various resources available for candidates to prepare for H12-891_V1.0 Exam, including study guides, practice exams, and training courses.

Huawei HCIE-Datacom V1.0 Sample Questions (Q189-Q194):

NEW QUESTION # 189
An engineer often remotely logs in to the device to check the device status. The engineer can use the Python Paramiko and telnetlib libraries to implement automatic remote login through Python scripts. The remote login implemented using telnetlib is more secure.

A. TRUE
B. FALSE

Answer: B

Explanation:
Comparison Between Paramiko (SSH) and Telnetlib (Telnet)
#Paramiko (SSH) is more secure than Telnetlib (Telnet).
SSH (Secure Shell) encrypts login credentials and session datausing encryption protocols likeAES and RSA.
Telnet transmits data in plaintext, making it vulnerable to eavesdropping and man-in-the-middle attacks.
#Why is Telnet Insecure?
No encryption# Credentials (username/password) are sent in plaintext.
Easily interceptedby attackers using packet sniffers (e.g., Wireshark).
Correct Method for Secure Remote Login in Python:
UseParamiko for SSH-based secure automation.
Example of logging in withParamiko (SSH)in Python:
import paramiko
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect("192.168.1.1", username="admin", password="password")
stdin, stdout, stderr = ssh.exec_command("display version")
print(stdout.read().decode())
ssh.close()
Reference from Huawei HCIE-Datacom Documentation:
Huawei Security Best Practices - Avoiding Telnet and Using SSH for Secure Access HCIE-Datacom Training Material - Network Automation with Python (Paramiko & Telnetlib)

NEW QUESTION # 190
iMaster NCE-Campus restricts RESTful APIs. If a client sends aGET requestthat invokes a RESTful API to obtain site information from iMaster NCE-Campus, which of the following fields should be included in the request header?

A. ACCEPT-TOKEN
B. X ACCESS TOKEN
C. ACCESS-TOKEN
D. X-ACCEPT-TOKEN

Answer: C

Explanation:
Comprehensive and Detailed In-Depth Explanation:
When invokingRESTful APIsiniMaster NCE-Campus, the client must include theACCESS-TOKENin therequest headerto authenticate the request.
TheACCESS-TOKENis obtained throughauthenticationand is required forAPI access control.
The correct format in the HTTP header is:
Authorization: Bearer ACCESS-TOKEN
Other formats likeACCEPT-TOKEN,X-ACCEPT-TOKEN, andX ACCESS TOKENare not recognized or valid foriMaster NCE-Campus API requests.
Therefore, the correct answer isA.

NEW QUESTION # 191
The following about BGP routing, describing the error, is ?

A. non-aggregate routes take precedence over aggregate routes
B. See the following entry in the BGP routing table:* 172161.11/32 000010 0? Indicates that the route is available non-optimal
C. In PrefVal, Local_ Preference is equal to the case if the route is generated locally, IBGP Routing, the BGP preference for EBGP routing, is generated effectively referring to route priority.
D. For next_hop unreachable routes when invalid routes, do not participate in the preferred.

Answer: A

NEW QUESTION # 192
iMaster NCE-CampusInsight uses SNMP technology to collect metrics and logs of network devices and detects network exceptions based on real service traffic.

A. TRUE
B. FALSE

Answer: A

Explanation:
Comprehensive and Detailed Explanation:
iMaster NCE-CampusInsight is Huawei's intelligent network analysis platform that:# Collects real-time telemetry data using SNMP, NetStream, and Telemetry.# Analyzes traffic patterns to detect network anomalies.# Uses AI-driven analytics to optimize network performance.
Thus, the statement is TRUE.
# Reference: Huawei HCIE Datacom - iMaster NCE-CampusInsight Features

NEW QUESTION # 193
IPsec uses an asymmetric encryption algorithm to encrypt the symmetric algorithm key, which it uses to encrypt/decrypt data, ensuring security and performance.

A. TRUE
B. FALSE

Answer: A

Explanation:
Comprehensive and Detailed Explanation:
# IPsec uses a hybrid encryption approach:
* Asymmetric encryption (e.g., RSA, DH) secures the symmetric key exchange.
* Symmetric encryption (e.g., AES, 3DES) is then used to encrypt actual data.
# Why This is Secure?
* Asymmetric encryption ensures key confidentiality between peers.
* Symmetric encryption ensures high-performance encryption for bulk data.
# Reference: Huawei HCIE Datacom - IPsec Encryption Mechanisms

NEW QUESTION # 194
......

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H12-891_V1.0 Valid Examcollection, H12-891_V1.0 Valid Braindumps Questions

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Huawei HCIE-Datacom V1.0 Sample Questions (Q189-Q194):

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