問題集は全額返金保証付きのH31-311_V2.5問題集最大50%オフ [Q111-Q132]

質問 111
Which of the following elements does a data communication network have in terms of equipment?
(Multiple choice)

質問 112
In the OTN standard system, which of the following protocols defines optical transport network interfaces?

質問 113
The number of error blocks in each VC4 channel is detected by B3 at the receiving end. At the same time, this information is sent back to the transmitting end by which of the following items? and reported as HP.REI and OHP-FEBBE at the transmitting end.

質問 114
1:N linear multiplex section protection: when the working channel is unavailable, the service is switched to the protection channel for transmission, and the additional service originally transmitted on the protection channel is interrupted.

質問 115
The backplane has two 48V power cords, and each board gets two -48V power supplies from the backplane.
After combining the power supply via diodes, the various voltages required for each component are obtained by means of a DC/DC power module and a linear mane swap.

質問 116
After configuring PDH services on a per-network element basis, a complete trace cannot be searched. Which of the following is a possible reason? (Multiple choice)

質問 117
SL64 board is available for OSN 2500.

質問 118
The absence of a board will trigger ODUk SNCP protection. Which of the following situations means that the board is not in place? (Multiple choice)

質問 119
SDH network is composed of multiple network nodes (network elements) interconnected by optical fibers; network topology generally refers to the shape of the network, that is, the geometric arrangement of network nodes and transmission lines, which reflects the logical connection of the network.

質問 120
Which of the following optical fibers has the following dispersion characteristics: the dispersion is 0 at 1310nm, and the typical dispersion coefficient is 17ps/nm.km near 1550nm?

質問 121
The first to third layers of the OSI reference model are called the bottom layer, also known as the medium layer. The bottom layer is responsible for data transmission in the network. The fifth to seventh layers are called the high layer, also known as the host layer. Network interconnection devices are often located in the upper three layers and are implemented by a combination of hardware and software.

質問 122
The DWDM system has extremely high requirements on the stability of the light source. Which of the following factors affect the stability of the light source? (Multiple choice)

質問 123
Which of the following are the main functions of U2000 network management? (Multiple choice)

質問 124
OTM nr.m consists of up to n ” multiplexed channels and does not support non-channel-related overhead. The letter “r” indicates a decrease in functionality.

質問 125
In Ethernet, the frame length has a lower limit, which is mainly due to the following considerations?

質問 126
RSOH, MSOH, HPOH and LPOH implement the monitoring function in descending order of the monitoring fan country.

質問 127
After signals are transmitted for a certain distance in a WDM system, the optical signal-to-noise ratio (OSNR) at the receive end decreases to a certain extent. Which of the following Is the main cause?

質問 128
Which of the following is not an optical-layer board?

質問 129
RSOH, MSOH, HPOH and LPOH implement the monitoring function in descending order of the monitoring fan country.

質問 130
Which of the following bridges are used to forward data based on the MAC address and VLAN ID carried in the data?

質問 131
Only one TCM can be used at one site

質問 132
Which overhead below 112 is not ODUk overhead?