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| Section | Objectives |
|---|---|
| Network Planning and Maintenance | - Transmission network design principles - Fault management and performance monitoring |
| IPRAN and Converged Transport | - Synchronization and timing in transport networks - IPRAN architecture and deployment scenarios |
| Optical Transport Network Fundamentals | - WDM system fundamentals - SDH/SONET principles and architecture - OTN technology and frame structure |
| Transmission Network Technologies | - DWDM/ROADM technologies - Optical layer networking and protection mechanisms |
1. Which of the following protections in microwave equipment does not require dual slots?
A) SD
B) HSB
C) FD
D) SD+FD
2. Suppose there are subnets A1, A2, and A3 under subnet A.
When configuring monitoring settings, if subnets A1, A2, and A3 are not all selected for monitoring, subnet A will not be monitored.
If a new subnet A4 is added under subnet A, the newly added subnet A4 will be monitored only when subnet A is monitored, and the monitoring strategy can be different from the monitoring strategy of subnet A.
A) FALSE
B) TRUE
3. Regarding the configuration description of the U2000 northbound CORBA interface, what is wrong is
A) The default port numbers of normal mode and SSL mode in the basic configuration of U2000 CORBA are different
B) The U2000 northbound CORBA interface and the U2000 server run on the same machine, and the machine configuration is required to be able to install and run the U2000 server, and no additional hardware configuration is required
C) In the U2000 CORBA configuration, configure at least one of the filtering virtual network element switch and virtual network element switch collar
D) Set the host address, enter the host name or IP address according to the network management plan and design. The "host" mentioned here refers to the computer that provides CORBA services
4. Corresponding to the ISO seven-layer model, Ethernet corresponds to the physical and network layers of the seven-layer model. The Ethernet-defined specifications include the MAC sublayer and physical layer of the data link layer.
A) FALSE
B) TRUE
5. During the network acceptance test, it was found that the OSN 3500 can work normally when connected to an external clock source. When the external clock source is disconnected, it enters the hold state, but the hold state cannot last for 24 hours. Please explain the possible reasons.
A) Wrong clock level setting
B) The clock SSM function is not enabled
C) Access to external high-precision clock source time is too short
D) The clock crystal oscillator fails, and the board needs to be replaced
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A | Question # 3 Answer: C | Question # 4 Answer: A | Question # 5 Answer: C |
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