Refer to the exhibit. You are the network security administrator responsible for router security.Your networkuses internal IP addressing according to RFC 1918 specifications.From the default rules shown，whichaccess control list would prevent IP address spoofing of these internal networks？（）

单项选择题HowdoyoudefinetheauthenticationmethodthatwillbeusedwithAAA？（）

A.With the method aaa command
B.With the method command
C.With a method list
D.With a method statement

单项选择题Whichnameisofthee-mailtrafficmonitoringservicethatunderliesthatarchitectureofIronPort？（）

A.SenderBase
B.TrafMon
C.IronPort M-Series
D.E-Base

单项选择题On the basis of the show policy-map type inspect zone-pair session command output provided in theexhibit.What can be determined about this Cisco IOS zone based firewall policy？（）

A.Stateful packet inspection will be applied only to HTTP packets that also match ACL 110
B.This is an inbound policy（applied to traffic sourced from the less secured zone destined to the moresecured zone）
C.This is an outbound policy（applied to traffic sourced from the more secured zone destined to the lesssecured zone）
D.All packets will be dropped since the class-default traffic class is matching all traffic

多项选择题WhenusingtheCiscoSDMQuickSetupSiteto-SiteVPNwizard，whichthreeparametersdoyouconfigure？（）

A.Source interface where encrypted traffic originates
B.IP address for the remote peer
C.Transform set for the IPsec tunnel
D.Interface for the VPN connection

单项选择题WhichstatementistrueaboutaSmurfattack？（）

A.It sends ping requests in segments of an invalid size
B.It intercepts the third step in a TCP three-way handshake to hijack a session
C.It sends ping requests to a subnet， requesting that devices on that subnet send ping replies to a targetsystem
D.It uses Trojan horse applications to create a distributed collection of "zombie" computers， which can beused to launch a coordinated DDoS attack