The migration rollback time can be determined based on the actual migration situation, without the need to plan in advance.

• A.TRUE
• B.FALSE

Comment: *

Name: *

Email: *

Verification: *

Generally, which of the following enterprise services require user experience optimization? (Multiple Choice)

• A.Network management
• B.Video surveillance
• C.Voice call
• D.Videoconferencing

Comment: *

Name: *

Email: *

Verification: *

Ethernet supports broadcast. Once a network loop occurs, this simple broadcast mechanism will cause catastrophic consequences.
Which of the following symptoms may be caused by a loop?

• A.Users cannot log in to the device remotely.
• B.The display interface command output shows a large number of broadcast packets received on an interface.
• C.The CPU usage exceeds 70%.
• D.A lot of ICMP packets are lost in ping tests.

Comment: *

Name: *

Email: *

Verification: *

Which of the following statements regarding common functions of the NMS is true?

• A.The alarm management function does not allow the NMS to directly display alarm information about devices and ports on the topology.
• B.After configuration file backup is configured, the NMS automatically compares differences between configuration files. When obtaining the configuration change, the NMS generates an alarm, which, however, cannot be notified to the preset contact through an email.
• C.The performance management function does not allow the NMS to collect statistics about performance data.
• D.During performance management, the NMS presets default thresholds for key performance counters. If a counter exceeds the threshold, an alarm is generated.

Comment: *

Name: *

Email: *

Verification: *

Which of the following events represent the end of the network planning stage?

• A.Contract signing
• B.Bid release
• C.Preliminary project acceptance
• D.Project initiation

Comment: *

Name: *

Email: *

Verification: *