单项选择题
A.Clear the MAC address table in the switch.
B.Clear the ARP cache in the switch.
C.Clear the ARP cache in the end devices.
D.Clear the ARP cache in the application servers.
问答题 SRR?
单项选择题 Refer to the exhibit. BGP-4 routing to the Internet,in normal behavior,may create asymmetrical routing for different prefixes. The BGP routing table indicates that traffic should follow the paths indicated in the exhibit,but packets are not going further than the border router in AS 4. What could be the cause of this problem?()
单项选择题 ArequestarrivedonyourMPLS-vpn-bgpgroup.Duetoasecuritybreach,yourcustomerisexperiencingDoSattackscomingfromspecificsubnets(200.0.10.0/24,200.0.12.0/24).YouhavecheckedallMPLS-EBGProutesbeingadvertisedtoBHKfromotherVPNsitesandfoundfoursubnetslisted:200.0.10.0/24,200.0.11.0/24,200.0.12.0/24,200.0.13.0/24.YouimmediatelyapplyanoutboundACLfilterusingtheappropriateMPLS-EBGPtool:access-list1deny0.0.0.0255.255.254.255access-list1permitanyWhathappenswhenyouapplythisACLontheMPLS-EBGPconnectiontoBHK?()