H31-311_V2.5 Exam Questions

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

Which of the following descriptions of MPLS are wrong? (Multiple choice)

Which of the following are correct regarding optical amplifiers and regenerators? (Multiple choice)

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

What are the differences between AU pointer and TU pointer? (Multiple choice)

Regarding the processing of data frames by the data board port, which of the following descriptions are correct? (Multiple choice)

Which of the following situations can cause the board to insert the BDI maintenance signal back to the upstream site? (Multiple choice)

Which of the following descriptions are correct? (Multiple choice)

Which of the following are the main features of the overall structure of a WDM system with N- channel wavelength multiplexing? (Multiple choice)

Which of the following statements are correct regarding the alarms caused by mismatch? (Multiple choice)

Which of the following are the main technical indicators for measuring filters? (Multiple choice)

When 172.17.15.0/24 is subnetted using an extra 4 bits, which of the following addresses are legal subnet addresses? (Multiple choice)

Among the following recommendations, which of the following protocols are related to WDM? (Multiple choice)

What standard encapsulation protocols are defined in MSTP? (Multiple choice)

Which of the following options are correct? (Multiple choice)

There are three types of multi-level connection monitoring modes (TCM) in OTN. Which of the following are correct? (Multiple choice)

Which of the following are traditional methods for multiplexing low-speed signals into high-speed signals? (Multiple choice)

Currently, the most commonly used signal is 2Mbit/s. Which of the following steps are involved in the process of multiplexing 2Mbit/s signals into STM-N? (Multiple choice)

What are the main losses of optical fiber? (Multiple choice)

Which of the following optical loss alarms will not cause service interruption? (Multiple choice)

The emergence of QinQ is mainly aimed at which of the following prominent problems in the network? (Multiple choice)

Which of the following parts does optical fiber consist of? (Multiple choice)

MAC forwarding table: Which of the following items does it contain? (Multiple choice)

Which of the following statements are correct regarding the use of J0 bytes? (Multiple choice)

Which of the following are not passive optical devices? (Multiple choice)

Which of the following layers of overhead belong to the electrical layer overhead of OTN? (Multiple choice)

Among the maintenance signals at the ODUk level, which of the following maintenance signals are included in the STAT bits of PM and TCM? (Multiple choice)

Which of the following are the main advantages of SDH? (Multiple choice)

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)

There are many types of optical wavelength division multiplexers. Which ones are listed below? (Multiple choice)

Which of the following are the basic requirements of DWDM system for light source? (Multiple choice)

What functions does the SDH overhead byte perform? (Multiple choice)

What does the optical layer overhead include? (Multiple choice)

Which of the following statements about pointer adjustment are correct? (Multiple choice)

Which of the following statements are correct? (Multiple choice)

For the B1 byte, which of the following statements are correct? (Multiple choice)

Which of the following are the logical function modules involved in clock information processing? (Multiple choice)

Which of the following statements about the frame structure of SDH signals are correct? (Multiple choice)

Which of the following descriptions about solving the system OSNR limitation problem are correct? (Multiple choice)

Which of the following options are low-loss areas of single-mode optical fiber? (Multiple choice)

What are the main functions of LAG? (Multiple choice)

When enabling NE performance monitoring events on the U2000 network management system, which of the following statements is correct? (Multiple choice)

Which of the following options belong to nonlinear effects? (Multiple choice)

Which of the following alarms will be reported when performing a fiber cut test on a common MSP ring? (Multiple choice)

The standard Ethernet frame length should not be less than 64 bytes. Which of the following factors will lead to this limitation? (Multiple choice)

Which of the following are types of service boards for MSTP equipment? (Multiple choice)

When using the LCAS function, which of the following overhead bytes is used to transmit control information? (Multiple choice)

Which of the following is the electrical layer overhead of OTN? (Multiple choice)

Which of the following statements about 1+1 protection of cross-connection board are correct? (Multiple choice)

Which of the following statements about the MST functional module are correct? (Multiple choice)