H12-821_V1.0-ENU 무료 덤프문제 온라인 액세스

Which of the following statements about the IS-IS protocol is wrong?

• A.IS-IS protocol packets are directly encapsulated by the data link layer
• B.IS-IS protocol supports IP network
• C.IS-IS protocol is a link state protocol running between AS
• D.IS-IS protocol supports CLNP network

It is now discovered that a VRRP dual-master phenomenon occurs in a local area network, causing traffic to be interrupted from time to time. So what are the possible reasons for this VRRP dual-master?
(Multiple choice)

• A.The VRIDs of the two gateway devices do not match.
• B.BFD interrupt
• C.The uplink port of one of the gateway devices is interrupted.
• D.The heartbeat is interrupted, causing the two gateway devices to be unable to exchange VRRP messages.

Which of the following IP address ranges are not multicast address ranges? (Multiple choice)

• A.192.168.0.0~192.168.255.255
• B.224.0.0.0~ 224.0.0.255
• C.168.1.0.0~168.1.255.255
• D.239.0.0.0~239.255.255.255

Which of the following scenarios is the SD-WAN solution suitable for?

• A.Internal interconnection of enterprise data center network
• B.Enterprise campus wireless network deployment
• C.Enterprise branch interconnection

Which of the following descriptions about the triggering mechanism of 802.1X authentication is correct? (Multiple choice)

• A.The authentication device can trigger authentication in multicast or unicast mode
• B.802.1X authentication can only be initiated by the client
• C.The 802.1X client can trigger authentication by multicast or broadcast
• D.802.1X authentication cannot be initiated by an authentication device (such as an 802.1 switch)