Refer to the exhibit.

An engineer has started to configure a router for secure remote access as shown. All users who require network access need to be authenticated by the SSH Protocol.Which two actions must the engineer implement to complete the SSH configuration? (Choose two.)

Refer to the exhibit.

Which two topology changes happen to the IS-IS routers? (Choose two.)

Refer to the exhibit.

A network operator has two IPv4 and IPv6 dual-stacked network on each side of the IPv4 core network. The operator must be able to provide connectivity between them while using specific assigned IPv6 space provided from the company IP administrator team. Which technology should the network operator use to accomplish this goal?

A network engineer Is implementing a QoS policy for outbound management traffic classification and marking on a CPE device with these requirements:
* Management protocols must be marked with DSCP AF class 2 w4h low drop probability.
* Monitoring protocols must be marked with DSCP AF class 1 with low drop probability.
* All remaining traffic must be marked with a DSCP value of 0.
Which configuration must the engineer implement to satisfy the requirements?

Refer to the exhibit.

Which type of DDoS attack will be mitigated by this configuration?