Practice Free H12-931_V2.0-ENU Exam Online Questions
For non-returnable services, when the LSP is interrupted, the head node calculates the best path for service recovery, and then establishes a new LSP through signaling to transmit the service. After the new LSP is established, the original LSP will not be deleted.
- A . True
- B . False
Two SMP rings intersect. For cross-ring services, the configuration of the intersection nodes is particularly important. In order to achieve the best protection effect, each intersection node needs to be configured with one unidirectional cross connection and two pairs of SNCP protection groups.
- A . True
- B . False
Which of the following description about creating optical fiber using synchronous method is wrong?
- A . Fibers that exist on both the NMS side and the NE side and have completely identical information do not need to be created.
- B . If there are optical fibers that are not created on the network management system or on the network element, they need to be synchronized or created.
- C . The existence of conflicting fibers does not affect the path configuration, so you can ignore it.
- D . Conflicting fibers refer to fibers that are configured on the NE side and are inconsistent with those configured on the NMS side.
Which of the following features can adjust bandwidth on demand when Ethernet networking is used, dynamically increase and decrease members in VCTRUNK without affecting services? When a virtual cascade group member fails, the bandwidth can be quickly adjusted to ensure normal data transmission; when the failed member recovers, the original bandwidth of the virtual cascade group is automatically restored.
- A . LCAS
- B . LAG
- C . DLAG
- D . QoS
When SDH equipment is configured with Ethernet Layer 2 switching services, the switch forwards data frames based on the MAC address table, which is learned by the switch based on the source MAC address. The MAC address table of a common Layer 2 switch is a mapping relationship established between the MAC address and the switch port.
- A . True
- B . False
The following are the parts of the CORBA northbound interface and the corresponding functions of each part. Which one is correct? (Multiple choice)
- A . CORBA name service: provides the only entry point for OSS to correctly access the U2000 CORBA interface
- B . CORBA name service : during deployment, it is necessary to ensure that the name of the managed U2000 is unique within the NMS management domain.
- C . CORBA Notification Service: Converts OSS request information into internal interaction information of the U2000 system and receives alarms, performance, and notifications.
- D . CORBA notification service: When the configuration data in U2000 is changed, the OSS can be notified of the detailed change information in time. This ensures the consistency of the data between OSS and U2000
The frame rate () and transmission rate of different levels of STM levels are different.
What is the significance of engineering survey? (Multiple choice)
- A . Confirm the design plan
- B . Guidance on stocking complete sets
- C . Confirm the installation environment
- D . Guide installation implementation
What does the feature test of the NS4 board include? (Multiple choice)
- A . -20dB spectrum width test
- B . Central wavelength test
- C . Receiver sensitivity
- D . Side Mode Suppression Ratio
According to the different transmission media, the transmission system can be divided into () system and () system.