Online Access Free H12-261 Exam Questions

Which of the following statements regarding RADIUS are true?

• A.MAC address authentication does not require a user name and password. Therefore, users cannot be authenticated through RADIUS when using MAC address authentication.
• B.Authentication, authorization, and accounting are separated in RADIUS protocol.
• C.RADIUS supports user access in wired and wireless modes.
• D.RADIUS authentication and Portal authentication cannot be used together because users can be authenticated using the Portal server when Portal authentication is enabled.

Which of the following statements regarding BGP load balancing are false?

• A.Load balancing can be implemented among IBGP routes and EBGP routes having the same destination on the public network.
• B.Load balancing can be implemented among BGP routes with different origins but having the same destination network segment.
• C.The AS_Path attribute values of equal-cost routes for load balancing must be different.
• D.When BGP load balancing is implemented, the local device can change the next-hop address of routes to its own address when advertising the routes to IBGP peer groups only if the peer next-hop-local command is configured.

The Next Header field only exists in the basic header of an IPv6 packet, and its function is only to indicate whether the IPv6 packet has an extension header.

• A.False
• B.True

The following information about the MPLS label describes the error?

• A.If the bottom label stack in the identifier is S=0 IP, it indicates that the label stack label is directly forwarded.
• B.When the label value is 0, IPv4, the label is displayed. The label should be played, and the text must be based on the report.
• C.By default, the support device PHP PHP Egress 3 feature, supported point allocation, the second-to-last hop point, the section label value
• D.The length of the MPLS 4 label is encapsulated between the link layer of the road and the network.

A DR needs to be elected from a set of candidate PIM-SM routers for multicast data forwarding on the source Which of the following statements regarding DR election rules is true?

• A.DR priorities of the PIM-SM routers are compared first. If their DR priorities are the same, their interface IP addresses are then compared.
• B.The PIM-SM router with the smallest IP address is elected as the DR.
• C.The PIM-SM router with the lowest DR priority is elected as the DR.
• D.The PIM-SM router with the longest interface mask is elected as the DR.