To securely transport EIGRP traffic, a network administrator will build VPNs between sites. What is the best method to accomplish the transport of EIGRP traffic?（）

单项选择题A network vulnerability scanner is part of which critical element of network and system security?（）

A. host security
B. perimeter security
C. security monitoring
D. policy management

单项选择题You are the Cisco Network Designer in Cisco.com. You are designing an e-Commerce module, which routing statement is correct?（）

A. Routing is mostly static.
B. Hardcoded IP addresses are used to support failover.
C. Inbound servers use the CSM or ACE as the default gateway.
D. VLANs between the access layer switches are used for FHRP protocols.

单项选择题With Call Manager v3.1, what is the maximum number of servers in a Cluster?（）

A.3
B.6
C.7
D.8

多项选择题The Cisco IOS SLB feature is a Cisco IOS-based solution that provides server load balancing.This feature allows you to define a virtual server that represents a cluster of real servers, known as a server farm.When a client initiates a connection to the virtual server, the IOS SLB load balances the connection to a chosen real server, depending on the configured load balance algorithm or predictor.Which three implementation modes may be used to deploy SLB? （）

A. Router mode
B. One-arm mode
C. Three-arm mode
D. Bridge mode inline

多项选择题What are two considerations to using IP Multicast delivery? （）

A. no congestion avoidance
B. not for bandwidth intensive applications
C. no guaranteed delivery mechanism
D. source sends multiple data streams out each interface