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Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, destined for an Enterprise network.Which of the following answers best describes the router‘s logic that tells the

题目

Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, destined for an Enterprise network.Which of the following answers best describes the router‘s logic that tells the router, for a given packet, to apply GRE encapsulation to the packet?（）

A. When the packet received on the LAN interface is permitted by the ACL listed on the tunnel greacl command under the incoming interface

B. When routing the packet, matching a route whose outgoing interface is the GRE tunnel interface

C. When routing the packet, matching a route whose outgoing interface is the IPsec tunnel interface

D. When permitted by an ACL that was referenced in the associated crypto map

相似考题

1.You are given a PC, a router, and a cable. Select the correct combination that will allow you to log into router VE1 locally using a terminal emulation program such as HyperTerminal.A. Connect the PC's COM port to the router's console port using a straight-through cable.B. Connect the PC's COM port to the router's console port using a rollover cable.C. Connect the PC's COM port to the router's Ethernet port using a straight-through cable.D. Connect the PC's Ethernet port to the router's Ethernet port using a rollover cable.E. Connect the PC's Ethernet port to the router's Ethernet port using a straight- through cable.F. None of the above

2.What are two examples of RE exception traffic?()A. BGP updates that travel through the local router and are destined for a remote router.B. OSPF hello packets that are sent from a remote router and are destined for the local router.C. Telnet traffic that is sent from a remote host and is destined for the local router.D. Telnet traffic that travels through the local router and is destined for a remote end host.

3.An administrator replaced a router with a switch. End users are able to access network shares butare not able to access the Internet. Which of the following is the BEST explanation why the usersare unable to access the Internet?（）A. Router routes traffic between different networks and a switch does notB. The new switch is faulty and needs to be replaced and configured correctlyC. The firewall needs to be setup to allow traffic to reach the InternetD. The switch needs to be setup to forward data traffic to the Internet

4.Basically, a firewall is a(145)process or a set of integrated processes that runs on a router or(146)to control the flow of networked application traffic(147)through it. Typically, firewalls are placed on the entry point to a(148)network such as the Internet. They could be considered traffic cops. The firewall's(149)is to ensure that all communication between an organization's network and the Internet conform. to the organization's policies.A．dependentB．isolatedC．relatedD．standalone

更多“Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through ”相关问题

  • 第1题：

    Router R1, a branch router, connects to the Internet using DSL. The engineer plans to use a configuration with a dialer interface. The answers list a feature and interface on which the feature could be configured.Which combinations accurately describe the interface under which a feature will be configured?（）

    A. PPP on the ATM interface

    B. VPI/VCI on the dialer interface

    C. IP address on the ATM interface

    D. CHAP on the dialer interface


    参考答案：D

  • 第2题：

    Router R1 connects to a Frame Relay cloud using a multipoint subinterface, with ten PVCs associated with the subinterface.What command would make this router not use a DR, and dynamically discover OSPF neighbors?（）

    A. ip ospf network broadcast

    B. ip ospf network non - broadcast

    C. ip ospf network point - to - multipoint

    D. ip ospf network point - to - multipoint non - broadcast


    参考答案：C

  • 第3题：

    The relevant portion of the Barrymore router configuration is displayed below:In your effort to conserve precious bandwidth, you set up some ACL‘s to deny internet access to the remote server located at 192.168.20.5. A few minutes after reconfiguring (as shown in the exhibit above) you notice that some web traffic is still going through.Based on the above output, what do you suspect as to why the traffic still traveling over the ISDN link?（）

    A. Broadcasts are creating "interesting" traffic.

    B. The access-list is not configured correctly.

    C. The command ip access-group 129 out is missing from the bri0/0 interface.

    D. The dialer-group has not been applied to outbound traffic.


    参考答案：B

  • 第4题：

    Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, and into the core of an Enterprise network. The branch also allows local hosts to communicate directly with public sites in th e Internet over this same DSL connection. Which of the following answers defines how the branch NAT config avoids performing NAT for the Enterprise directed traffic but does perform NAT for the Internet - directed traffic?（）

    • A、By not enabling NAT on the I Psec tunnel interface
    • B、By not enabling NAT on the GRE tunnel interface
    • C、By configuring the NAT - referenced ACL to not permit the Enterprise traffic
    • D、By asking the ISP to perform NAT in the cloud

    正确答案:C

  • 第5题：

    Router R1 sits at an Enterprise branch office, using both the Internet and a leased line to another Enterprise router for its two connectivity options back into the rest of the Enterprise network. The engineer planning for this branch decided to use the leased line for all Enterprise traffic, unless it fails, in which case the Internet connection should be used to pass traffic to the Enterprise. Which of the following is most likely to be useful on the branch router?（）

    • A、IPsec tunnel
    • B、GRE tunnel
    • C、Floating stati c route
    • D、An IGP

    正确答案:A,C

  • 第6题：

    Router R1 connects to a Frame Relay cloud using a multipoint subinterface, with ten PVCs associated with the subinterface. What command would make this router not use a DR, and dynamically discover OSPF neighbors?（）

    • A、ip ospf network broadcast
    • B、ip ospf network non - broadcast
    • C、ip ospf network point - to - multipoint
    • D、ip ospf network point - to - multipoint non - broadcast

    正确答案:C

  • 第7题：

    Router R1 sits inside OSPF area 1. Router R2 redistributes an E1 route into OSPF for prefix 2.2.2.0/24, with external metric 20. Router R22 redistributes an E2 route for the same prefix/length, external metric 10. Under what conditions will R1 choose as it s best route the route through R22?（）

    • A、R1 will always choose the route through R22.
    • B、As long as R1's best internal OSPF cost to reach R22 is less than 10.
    • C、As long as R1's best internal OSPF cost to reach R22 is less than 20.
    • D、R1 will never choo se the route through R22 if the E1 route through R2 is available.

    正确答案:D

  • 第8题：

    单选题
    Router R1 sits at an Enterprise branch office, using the Internet for its only connectivity back to the rest of the EnterprisE. Which of the following is not a ben efit of using an IPsec tunnel for packets sent through the Internet, between R1 and the rest of the Enterprise?（）
    A

    Privacy

    B

    Authentication

    C

    Allows using an IGP between R1 and the Enterprise

    D

    Secure communications


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    Router R1 connects to a Frame Relay cloud using a multipoint subinterface, with ten PVCs associated with the subinterface. What command would make this router not use a DR and require static OSPF neighbor definition?（）
    A

    ip ospf network broadcast

    B

    ip ospf netw ork non - broadcast

    C

    ip ospf network point - to - multipoint

    D

    ip ospf network point - to - multipoint non - broadcast


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    When does the E-series router start monitoring DHCP traffic using the DHCP External function?（）
    A

    When the discovery packet enters the router from the DHCP client.

    B

    Only when the offer packet enters the router from the DHCP server.

    C

    When the acknowledge packet enters the router from the DHCP server.

    D

    Only when the discovery packet leaves the router going to the DHCP server.


    正确答案： D
    解析： 暂无解析

  • 第11题：

    多选题
    Router R1 sits at an Enterprise branch office, using both the Internet and a leased line to another Enterprise router for its two connectivity options back into the rest of the Enterprise network. The engineer planning for this branch decided to use the leased line for all Enterprise traffic, unless it fails, in which case the Internet connection should be used to pass traffic to the Enterprise. Which of the following is most likely to be useful on the branch router?（）
    A

    IPsec tunnel

    B

    GRE tunnel

    C

    Floating stati c route

    D

    An IGP


    正确答案： C,D
    解析： 暂无解析

  • 第12题：

    单选题
    Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, and into the core of an Enterprise network. The branch also allows local hosts to communicate directly with public sites in th e Internet over this same DSL connection. Which of the following answers defines how the branch NAT config avoids performing NAT for the Enterprise directed traffic but does perform NAT for the Internet - directed traffic?（）
    A

    By not enabling NAT on the I Psec tunnel interface

    B

    By not enabling NAT on the GRE tunnel interface

    C

    By configuring the NAT - referenced ACL to not permit the Enterprise traffic

    D

    By asking the ISP to perform NAT in the cloud


    正确答案： C
    解析： 暂无解析

  • 第13题：

    Router R1 sits at an Enterprise branch office, using the Internet for its only connectivity back to the rest of the EnterprisE.Which of the following is not a ben efit of using an IPsec tunnel for packets sent through the Internet, between R1 and the rest of the Enterprise?（）

    A. Privacy

    B. Authentication

    C. Allows using an IGP between R1 and the Enterprise

    D. Secure communications


    参考答案：C

  • 第14题：

    Refer to the exhibit The neighbor 10.1.1.1 weight 200 BGP configuration command has been configured on router A. What will be the result of this configuration? ()

    A. Router A will prefer the path through router B for network 172.20.0.0

    B. Router A will prefer the path through router C for network 172.20.0.0

    C. Packets from router D will prefer the path through router B for networks advertised by router A

    D. Packets from r outer D will prefer the path through router C for networks advertised by router A


    参考答案：A

  • 第15题：

    Enterprise Router R1, in ASN 1, connects to ISP Router I1, ASN 2, using eBGP. There are two parallel serial links between the two rou ters. The implementation plan calls for each router to base their BGP TCP connection on their respective loopback1 interfaces, with IP addresses 1.1.1.1 and 2.2.2.2, respectively. Which of the following commands would not be part of a working eBGP confi guration on Router R1?（）

    • A、router bgp 1
    • B、neighbor 2.2.2.2 remote- as 2
    • C、neighbor 2.2.2.2 update - source loopback1
    • D、neighbor 2.2.2.2 multihop 2

    正确答案:D

  • 第16题：

    You are given a PC, a router, and a cable. Select the correct combination that will allow you to log into the router locally using a terminal emulation program such as HyperTerminal.（）

    • A、Connect the PC's COM port to the router's console port using a straight-through cable.
    • B、Connect the PC's COM port to the router's console port using a rollover cable.
    • C、Connect the PC's COM port to the router's ethernet port using a straight-through cable.
    • D、Connect the PC's ethernet port to the router's ethernet port using a rollover cable.
    • E、Connect the PC's ethernet port to the router's ethernet port using a straight- through cable.

    正确答案:B

  • 第17题：

    Enterprise Router R1 connects an Enterprise to the Internet. R1 needs to create and advertise a default route into the Enterprise using EIGRP. The engineer creating the implementation plan has chosen to base this default route on the ip route command, rather than using i p default - network. Which of the following is not a useful step with this style of default route configuration?（）

    • A、Create the default route on R1 using the ip route 0.0.0.0 0.0.0.0 outgoinginterface command.
    • B、Redistribute the statically configured defa ult route.
    • C、Disable auto - summary.
    • D、Configure the network 0.0.0.0 command.
    • E、Ensure R1 has no manually configured summary routes using the ip summary- address eigrp command.

    正确答案:C,E

  • 第18题：

    What are two reasons that a network administrator would use access lists? (Choose two.) （）。

    • A、to control vty access into a router  
    • B、to control broadcast traffic through a router  
    • C、to filter traffic as it passes through a router  
    • D、to filter traffic that originates from the router  
    • E、to replace passwords as a line of defense against security incursions 

    正确答案:A,C

  • 第19题：

    An administrator replaced a router with a switch. End users are able to access network shares butare not able to access the Internet. Which of the following is the BEST explanation why the usersare unable to access the Internet?（）

    • A、Router routes traffic between different networks and a switch does not
    • B、The new switch is faulty and needs to be replaced and configured correctly
    • C、The firewall needs to be setup to allow traffic to reach the Internet
    • D、The switch needs to be setup to forward data traffic to the Internet

    正确答案:A

  • 第20题：

    单选题
    Enterprise Router R1, in ASN 1, connects to ISP Router I1, ASN 2, using eBGP. There are two parallel serial links between the two rou ters. The implementation plan calls for each router to base their BGP TCP connection on their respective loopback1 interfaces, with IP addresses 1.1.1.1 and 2.2.2.2, respectively. Which of the following commands would not be part of a working eBGP confi guration on Router R1?（）
    A

    router bgp 1

    B

    neighbor 2.2.2.2 remote- as 2

    C

    neighbor 2.2.2.2 update - source loopback1

    D

    neighbor 2.2.2.2 multihop 2


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    Router R1, a branch router, connects to the Internet using DSL. The engineer plans to use a configuration with a dialer interface. The answers list a feature and interface on which the feature could be configured. Which combinations accurately describe the interface under which a feature will be configured?（）
    A

    PPP on the ATM interface

    B

    VPI/VCI on the dialer interface

    C

    IP address on the ATM interface

    D

    CHAP on the dialer interface


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, destined for an Enterprise network. Which of the following answers best describes the router's logic that tells the router, for a given packet, to apply GRE encapsulation to the packet?（）
    A

    When the packet received on the LAN interface is permitted by the ACL listed on the tunnel greacl command under the incoming interface

    B

    When routing the packet, matching a route whose outgoing interface is the GRE tunnel interface

    C

    When routing the packet, matching a route whose outgoing interface is the IPsec tunnel interface

    D

    When permitted by an ACL that was referenced in the associated crypto map


    正确答案： D
    解析： 暂无解析

  • 第23题：

    多选题
    What are two examples of RE exception traffic?（）
    A

    BGP updates that travel through the local router and are destined for a remote router.

    B

    OSPF hello packets that are sent from a remote router and are destined for the local router.

    C

    Telnet traffic that is sent from a remote host and is destined for the local router.

    D

    Telnet traffic that travels through the local router and is destined for a remote end host.


    正确答案： D,C
    解析： 暂无解析

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