Question 1

Which of the following statements about RADIUS is correct?( Single choice questions).

Options :

A : MAC authentication does not require a username password, so you cannot use RADIUS to authenticate the user.

B : RADIUS supports both wired and wireless access modes.

C : SEPARATION OF RADIUS PROTOCOL AUTHENTICATION, AUTHORIZATION, AND AUDIT.

D : RADIUS authentication and Portal authentication cannot be used together because the Portal server can typically be used to authenticate users when portal authentication is deployed.

Answer: B

Question 2

In an IPv6 network, two nodes A and B are neighbors to each other if node A sends to node B NS message, if

Node B receives the message and then replies to the NA message, then on Node A On the view, the neighbor

status will be marked as What?

Options :

A : Reachable

B : Incomplete

C : Constant

D : Probe Answer

Answer: A

Question 3

BGP EVPN does MAC address advertisement, ARP message advertisement, and IRB route advertisement for which BGP EVPN route is advertised?

Options :

A : Type3

B : Type2

C : Type4

D : Type1

Answer: B

Question 4

Which is the correct description of optimal routing election for each protocol in the following options?( Radio).

Options :

A : Route entries in BGP that are unreachable for the next hop are also placed in the IP routing table. In the

B : BGP protocol, the best route to reach the same destination circumference is selected by comparing the cost values of the route entries.

C : The OSPF protocol puts all the routing information in the LSDB into the IP routing table.

D : From BGP and OSPF, different route entries to reach the same destination segment are learned, and the optimal route is selected to join the IP route table by comparing the protocol-s preference value

Answer: D

Question 5

In different scenarios, RSTP provides different protection functions, and the wrong statement about this statement is

Options :

A : The root protection feature is enabled for the specified port, and its port role can only remain as the specified port

B : When the anti-TC-BPDU packet attack feature is enabled, the number of times the switching device processes IC BPDU packets per unit time is configurable

C : after the BPDU protection function is enabled on the switching device, if the edge port receives RST BPDU, the edge port will be set to a non-remote port and the spanning tree calculation will be re-performed

D : Start the specified port of root protection, when the port receives a better RSTBPDU, the port will enter the Discarding state and is no longer forwarding packets. If the port does not receive a better RSTBPD for a period of time then automatically revert to the normal Forwarding state

Answer: C