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EAP-FAST provides a secure tunnel during Phase One to protect the user’s authentication credentials. Which of these entities initializes the secure tunnel？（）
A . generic token card
B . x.509 certificate
C . preshared key
D . Protected Access Credential
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Which router or router combination is used to calculate the MPLS traffic engineering tunnel path？（）
A . head-end router and tail-end router
B . middle-point router
C . head-end router
D . tart-end router
E . tail-end router
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You need to configure a GRE tunnel on a IPSec router. When you are using the SDM to configurea GRE tunnel over IPsec， which two parameters are required when defining the tunnel interfaceinformation？（）
A . The crypto ACL number
B . The IPSEC mode （tunnel or transport）
C . The GRE tunnel interface IP address
D . The GRE tunnel source interface or IP address， and tunnel destination IP address
E . The MTU size of the GRE tunnel interface
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Which BGP community is used to prevent the advertisement of the BGP prefix to other BGP peers？（）
A . additive
B . none
C . no-export
D . no-advertise
E . local-a
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The enable secret command is used to secure access to which CLI mode?（）
A . user EXEC mode
B . global configuration mode
C . privileged EXEC mode
D . auxiliary setup mode
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Eap-fast provides a secure tunnel during phase one to protect the user’s authentication credentials. Which of these entities initializes the secure tunnel？（）
A . x.509 certificate
B . generic token card
C . pre shared key
D . protected access credential
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EAP-FAST provides a secure tunnel during Phase One to protect the user’s authenticationcredentials. Which of these entities initializes the secure tunnel？（）
A . x.509 certificate
B . generic token card
C . preshared key
D . Protected Access Credential
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A company is using 6to4 tunneling within their IPv6 network. Which two statements about this kindof tunneling are accurate？（）
A . 6to4 is a manual tunnel method
B . Prepending a reserved IPv6 code to the hexadecimal representation of 192.168.0.1 facilitates6to4 tunneling
C . Each 6to4 site receives a /48 prefix in a 6to4 tunnel
D . 2002：：/48 is the address range specifically assigned to 6to4
E . Prepending 0x2002 with the IPv4 address creates an IPv6 address that is used in 6to4tunneling
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Which of the following three BGP filtering methods enabled with the neighbor command will filter BGP prefixes based on the prefix and prefix length？（）
A . A neighbor distribute - list out command, referencing a standard ACL
B . A neighbor prefix - list out command
C . A neighbor filter - list out command
D . A neighbor distribute - list out command, referencing an extended ACL
E . A neighbor route - map out command
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Which configuration is used to enable root guard？（）
A . interface gig3/1 spanning-tree guard root
B . interface gig3/1 spanning-tree root guard
C . interface gig3/1 spanning-tree root-guard
D . interface gig3/1 spanning-tree root-guard default
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Why would the network manager elect to implement a configuration that includes GRE tunnels for a eleworker deployment?（）
A . GRE can use transport mode and save up to twenty bytes per packet.
B . The corporate network includes many discontinuous blocks of IP networks and requires split tunneling.
C . The corporation's primary application is based on IP multicast.
D . Without GRE, there is no means to detect a head-end failure.
E . GRE would enable path MTU discovery.
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Which BGP attribute is used by BGP to prevent routing loops?（）
A . AS - path
B . next - hop
C . MED
D . weight
E . local preference
F . origi
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Which two mechanisms can be used to detect IPsec GRE tunnel failures？（）
A . Dead Peer Detection （DPD）
B . CDP
C . isakmp keepalives
D . GRE keepalive mechanism
E . The hello mechanism of the routing protocol across the IPsec tunnel
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Which of these statements best describes the major difference between an IPv4-compatible tunnel and a 6to4 tunnel？（）
A . An IPv4-compatible tunnel is a static tunnel， but an 6to4 tunnel is a semiautomatic tunnel.
B . The deployment of a IPv4-compatible tunnel requires a special code on the edge routers， but a 6to4 tunnel does not require any special code.
C . An IPv4-compatible tunnel is typically used only between two IPv6 domains， but a 6to4 tunnel is used to connect to connect two or more IPv6 domains.
D . For an IPv4-compatible tunnel， the ISP assigns only IPv4 addresses for each domain， but for a 6to4 tunnel， the ISP assigns only IPv6 addresses for each domain.
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What are four advantages to using tunnel brokers in an IPv6 transition environment?（）
A . Tunnel brokers automatically provide configuration parameters to peer routers.
B . IPv6 enabling a node looks automatic to the end user.
C . Tunnel information is sent via IPv4.
D . Tunnel brokers make it simpler for nontechnical users to deploy manual tunnels.
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Refer to the exhibit. A new TAC engineer came to you for advice. A GRE over IPsec tunnel was configured, but the tunnel is not coming up. W hat did the TAC engineer configure incorrectly?（）https://assets.asklib.com/images/image2/2018073016420757032.jpg
A . The crypto isakmp configuration is not correct.
B . The crypto map configuration is not correct.
C . The interface tunnel configuration is not correct.
D . The network configuration is not correct; netw ork 172.16.1.0 is missing.
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Which methods would enable traffic to be forwarded along an MPLS TE tunnel？（）
A . MP-BGP routing
B . Static routing
C . Policy routing
D . Autoroute
E . Forwarding adjacency
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Which two of these elements need to be configured prior to enabling SSH？ （）
A . hostname
B . loopback address
C . default gateway
D . domain name
E . SSH peer addre
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Which two of these elements need to be configured prior to enabling SSH？（）
A . hostname
B . loopback address
C . default gateway
D . domain name
E . SSH peer addre
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Which statement is true concerning 6to4 tunneling?（）
A . The edge routers can use any locally configured IPv6 address.
B . Hosts and routers inside a 6to4 site will need a special code.
C . An edge router must use IPv6 address of 2002::/16 in its prefix.
D . IPv4 traffic is encapsulated with an IPv6 header.
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In IPv6 network, an IPv6 overlay tunnel is required to communicate with isolated IPv6 networks across the existing IPv4 infrastructurE. There are currently fiv e IPv6 overlay tunnel types. Which three IPv6 overlay tunnel statements are true？（）
A . Overlay tunnels can only be configured between border routers capable of supporting IPv4 and IPv6.
B . An manual overlay tunnel supports point - to - multipo int tunnels capable of carrying IPv6 and Connectionless Network Service (CLNS) packets.
C . Overlay tunneling encapsulates IPv6 packets in IPv4 packets for delivery across an IPv4 infrastructure.
D . Overlay tunnels can be configured between border route rs or between a border router and a host capable of supporting IPv4 and IPv6.
E . Cisco IOS supports manual, generic routing encapsulation (GRE), IPv4 - compatible, 6to4, and Intra - Site Automatic Tunnel Addressing Protocol (ISATAP) overlay tunneling mechan isms.
F . Cisco IOS supports manual, generic routing encapsulation (GRE), IPv6 - compatible, 4to6, and Multiprotocol Label Switching (MPLS) overlay tunneling mechanisms.
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有关PPTP(Point-to-Point Tunnel Protocol)说法正确的是
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When was the tunnel opened to the public？
A．In 1990.
B．In 1992.
C．In the year of 1993.
D．In the late of 1994.
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Intheexhibit，youdecidedtochangemyHostsaddresses.[editsecuritypolicies]user@hostshowfrom-zonePrivateto-zoneExternal{policyMyTraffic{match{source-addressmyHosts；destination-addressExtServers；application[junos-ftpjunos-bgp]；}then{permit{tunnel{ipsec-vpnvpnTunnel；}}}}}policy-rematch；Whatwillhappentothenewsessionsmatchingthepolicyandin-progresssessionsthathadalreadymatchedthepolicy？（）
A.Newsessionswillbeevaluated.In-progresssessionswillbere-evaluated.
B.Newsessionswillbeevaluated.Allin-progresssessionswillcontinue.
C.Newsessionswillbeevaluated.Allin-progresssessionswillbedropped.
D.Newsessionswillhaltuntilallin-progresssessionsarere-evaluated.In-progresssessionswillbere-evaluatedandpossiblydropped.
