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多項選擇題

Which two of these key fields are used to identify a flow in a traditional NetFlow implementation？（）

A. source port
B. output interface
C. next-hop IP address
D. source MAC address
E. destination IP address
F. next-hop MAC address

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多項選擇題

The Schuyler and Livingston Iron Works has been working on getting its network security undercontrol. It has set up VPN with IPSec links to its suppliers. It has installed network vulnerabilityscanners to proactively identify areas of weakness， and it monitors and responds to securityevents as they occur. It also employs extensive access control lists， stateful firewall implementations， and dedicated firewall appliances. The company has been growing very fastlately and wants to make sure it is up to date on security measures. Which two areas of securitywould you advise the company to strengthen？（）

A. intrusion protection
B. identity
C. secure connectivity
D. security management

單項選擇題

You are the network consultant from Cisco.com.Your customer has eight sites and will add in thefuture. Branch site to branch site traffic is approaching 30 percent. The customer’s goals are to make iteasier to add branch sites in the future and to reduce traffic through the hub. Which VPN topology should you recommend？（）

A. Easy VPN
B. IPsec GRE tunneling
C. Virtual Tunnel Interfaces
D. Dynamic Multipoint VPN

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