If a fault is located on a router that works in redundancy mode with another router, which of the following methods is the most appropriate for subsequent troubleshooting?

• A.Configuration comparison
• B.Service traffic path check
• C.Bottom-up
• D.Top-down

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Which of the following statements regarding the basic device information check is true?

• A.You can run the display patch-information command to check patch information.
• B.The debugging functions can be enabled when the device is running properly.
• C.The device time should be consistent with the actual time (time difference < 24 hours) so that a fault can be accurately located based on the occurrence time.
• D.You can run the display current-configuration command to check the PCB version and the software version of a card.

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In network design, a redundant network topology can be used to provide higher reliability for customer services. Which of the following topologies can be used to provide redundancy? (Multiple Choice)

• A.Bus topology
• B.Ring topology
• C.Star topology
• D.Dual-star topology

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After the project delivery, the O&M expenses are continuously generated.
Which of the following items are the expenses generated during the O&M?

• A.Equipment depreciation expenses
• B.Energy expenses
• C.Staff expenses
• D.Line lease expenses
• E.Line construction expenses

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Enterprise networks usually use DHCP to assign IP addresses to users. Unlike static IP address assignment, DHCP address assignment greatly reduces the workload for managing network addresses.

• A.FALSE
• B.TRUE

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