DAI can be performed on ingress ports only.
DAI can be performed on both ingress and egress ports.
DAI is supported on access ports， trunk ports， EtherChannel ports， and private VLAN ports.
DAI should be enabled on the root switch for particular VLANs only in order to secure the ARP caches of hosts in the domain.
DAI should be configured on all access switch ports as untrusted and on all switch ports connected to other switches as trusted.
DAI is supported on access and trunk ports only.
第1题：
第2题：
RYTLX DD 5TH/4 HAVING CONTACTED HARBOUR OFFICE AND LOCAL SALVAGE COMPANY WE WUD LIKE TO ADVISE TT，THEY ARE GLAD TO ASSIST YOU TO POSITION THE ANCHOR AND GET IT OUT OF WATER. This fax says that ______.
A.they are glad to salvage the anchor
B.the HARBOUR OFFICE has been advised that the anchor has been gotten out of water
C.the LOCAL SALVAGE COMPANY can hardly salvage the anchor
D.both HARBOUR OFFICE and LOCAL SALVAGE COMPANY will be contacted to salvage the anchor
第3题：
The foreign company has been______ running this factory for decades.
A. enormously
B. effectively
C. infinitely
D. extremely
第4题：
Which spanning Tree Protocol has been implemented on switch 2？ （）
第5题：
第6题：
A new company has been given one public IP address. The company employs 200 users requiring Internet access from the headquarters.Which of the following can be implemented to provide Internet access for all the employees?（）
A. Multicasting
B. Proxy server
C. NAT
D. Subnetting
第7题：
第8题：
A.verified
B.examined
C.checked
D.stated
第9题：
Your firm has been recommended to us by AMK company, （） we have done business for many years.
第10题：
The DAI feature has been implemented in the Company switched LAN. Which three statements are true about the dynamic ARP inspection （DAI） feature？ （）