New Huawei H19-315 Exam Questions | H19-315 Latest Test Report
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Huawei H19-315 Certification Exam is designed for individuals who want to become a certified pre-sales associate in the field of transmission and access. H19-315 exam is conducted by Huawei, a leading global provider of information and communications technology (ICT) infrastructure and smart devices.
Huawei H19-315 exam assesses a candidate's knowledge and skills in areas such as data transmission principles and technologies, network architecture, broadband access technologies, and network planning and design. Candidates who pass the exam demonstrate a strong understanding of the latest transmission and access technologies, and can effectively communicate their knowledge to customers.
Huawei HCSA-Presales-Transmission & Access Sample Questions (Q55-Q60):
NEW QUESTION # 55
Which of the following is not a feature of the video private network self-built transmission network?
Answer: C
NEW QUESTION # 56
Which kinds of protection switching does the enhanced MSTP support? (Multiple choice)
Answer: A,B,C,D
NEW QUESTION # 57
AES-128 is the encryption algorithm used by GPON for downstream.
Answer: A
Explanation:
GPON (Gigabit Passive Optical Network) does not use AES-128 encryption for downstream traffic. Instead, GPON uses AES-128 encryptiononly for upstream trafficto ensure data security between the Optical Network Unit (ONU) and the Optical Line Terminal (OLT). Downstream traffic in GPON is broadcasted to all ONUs, and encryption is not applied because the data is intended for multiple users. The encryption key is dynamically managed by the OLT and distributed securely to the ONUs.
This behavior is defined in theITU-T G.984 standard, which specifies the GPON architecture and security mechanisms. For downstream traffic, the security relies on higher-layer protocols (e.g., IPsec or application- level encryption).
References:
* ITU-T G.984 Standard - GPON Architecture and Security
* Huawei GPON Technical Documentation
NEW QUESTION # 58
Huawei all-optical video backhaul network equipment includes OLT, P series ONU and T series ONU.
Answer: B
NEW QUESTION # 59
Which of the railway business's description of network security and reliability requirements is wrong?
Answer: A
NEW QUESTION # 60
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