최신 H31-311_V2.5 무료덤프 - Huawei HCIA-Transmission V2.5
According to the different transmission media, the transmission system can be divided into () system and () system.
정답:
Wired transmission | Wireless transmission
The dispersion coefficient of G655 single-mode optical fiber is smaller than that of G.652 single- mode optical fiber.
정답: A
The main causes of bit errors are () and () of the transmission system.
정답:
Noise | Jitter
Compared with PDH, the main advantages of SDH are reflected in which of the following aspects?
(Multiple choice)
(Multiple choice)
정답: A,C,D,E
Which of the following bridges are used to forward data based on the MAC address and VLAN ID carried in the data?
정답: B
In a wavelength division system, after a certain distance of transmission, the optical signal-to-noise ratio of the receiving end signal will be reduced to a certain extent. Which is the main reason?
정답: C
MPLS technology can be nested in multiple layers without any restrictions, and is only limited by (), which has good scalability. Which of the following is correct?
정답: A
For the signal flow of the OSN8800 equipment OTM site, service sending direction: SDH siginals LSX M40V OBU1 Line.
정답: A
MAC loopback and PHY loopback are used for fault location. When MAC loopback is set to in loop, you can set PHY loopback according to the actual situation.
정답: B
The error correction capability of FEC is measured by coding gain. Which of the following statements about coding gain is wrong?
정답: D
The subnet mask of 255.255.255.248, according to the calculation formula, can accommodate 23 devices, or 8 devices.
정답: B
Which of the following options belong to the functions in the NCE-T analysis domain? (Multiple choice)
정답: A,C,D