An engineer often remotely logs in to the device to check the device status. The engineer can use the Python Paramiko and telnetlib libraries to implement automatic remote login through Python scripts. The remote login implemented using telnetlib is more secure.

• A.TRUE
• B.FALSE

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HTTP is an application layer protocol for distributed, collaborative, and hypermedia information systems.

• A.TRUE
• B.FALSE

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What is correct below about LDP synchronization in ISIS?

• A.LDP establishes neighbors faster than ISIS, so LDP synchronization is turned off by default
• B.LDP synchronization can be turned on globally.
• C.LDP synchronization can be deployed on the Loopback interface.
• D.LDP synchronization avoids traffic loss when the active-standby link is switched.

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What is the following correct for the process of registering the source-side DR with RP in PIM-SM?

• A.RP sends a registration stop message as soon as it receives the registration message.
• B.Registered messages are used to build the RPT tree between source DR and RP
• C.Encapsulated in the registered message is multicast service data
• D.Registered packets are multicast packets.

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The link quality of a company's network is poor, often failures lead to route oscillation, and even occasionally there are routing loops, in order to prevent the recurrence of these phenomena, the network administrator decided to deploy URPF in the whole network to improve the stability of the network

• A.True
• B.False

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