Cisco CCNA 4 Chapter 3 version 6 Exam Answers

1. 1. Question

   Which broadband wireless technology is based on the 802.11 standard?

   •  municipal Wi-Fi
   •  WiMAX
   •  CDMA
   •  UMTS

2. 2. Question

   What is the approximate distance limitation for providing a satisfactory ADSL service from the central office to a customer?

   •  3.39 miles or 5.46 kilometers
   •  2.11 miles or 3.39 kilometers
   •  6.21 miles or 10 kilometers
   •  11.18 miles or 18 kilometers

3. 3. Question

   What is a component of an ADSL connection that is located at the customer site?

   •  CO
   •  CPE
   •  SOHO
   •  DSLAM

4. 4. Question

   What is the function of the DSLAM in a broadband DSL network?

   •  multiplexes individual customer DSL connections into a single upstream link
   •  communicates directly with customer cable modems to provide Internet services to customers
   •  communicates directly with customer cable modems to provide Internet services to customers
   •  separates POTS traffic from ADSL traffic

5. 5. Question

   Which broadband technology would be best for a small office that requires fast upstream connections?

   •  DSL
   •  fiber-to-the-home
   •  cable
   •  WiMax

6. 6. Question

   What are two WAN connection enhancements that are achieved by implementing PPPoE? (Choose two.)

   •  Encapsulating Ethernet frames within PPP frames is an efficient use of bandwidth.
   •  DSL CHAP features are included in PPPoE.
   •  PPP enables the ISP to assign an IP address to the customer WAN interface.
   •  An Ethernet link supports a number of data link protocols.
   •  CHAP enables customer authentication and accounting.

7. 7. Question

   When PPPoE is configured on a customer router, which two commands must have the same value for the configuration to work? (Choose two.)

   •  dialer pool 2
   •  interface dialer 2
   •  ppp chap password 2
   •  interface gigabitethernet 0/2
   •  pppoe-client dial-pool-number 2
   •  ppp chap hostname 2

8. 8. Question

   Why is the MTU for a PPPoE DSL configuration reduced from 1500 bytes to 1492?

   •  to enable CHAP authentication
   •  to reduce congestion on the DSL link
   •  to accommodate the PPPoE headers
   •  to establish a secure tunnel with less overhead

9. 9. Question

   What are two characteristics of a PPPoE configuration on a Cisco customer router? (Choose two.)

   •  The PPP configuration is on the dialer interface.
   •  An MTU size of 1492 bytes is configured on the Ethernet interface.
   •  The Ethernet interface does not have an IP address.
   •  The customer router CHAP username and password are independent of what is configured on the ISP router.
   •  The dialer pool command is applied to the Ethernet interface to link it to the dialer interface.

10. 10. Question

    Where is PPPoE configured on a Cisco router?

    •  on an Ethernet interface
    •  on the dialer interface
    •  on a serial interface
    •  on any physical interface

11. 11. Question

    How can the use of VPNs in the workplace contribute to lower operating costs?

    •  High-speed broadband technology can be replaced with leased lines.
    •  VPNs can be used across broadband connections rather than dedicated WAN links.
    •  VPNs prevents connectivity to SOHO users.
    •  VPNs require a subscription from a specific Internet service provider that specializes in secure connections.

12. 12. Question

    How is “tunneling” accomplished in a VPN?

    •  New headers from one or more VPN protocols encapsulate the original packets.
    •  All packets between two hosts are assigned to a single physical medium to ensure that the packets are kept private.
    •  Packets are disguised to look like other types of traffic so that they will be ignored by potential attackers.
    •  A dedicated circuit is established between the source and destination devices for the duration of the connection.

13. 13. Question

    Which two statements describe a remote access VPN? (Choose two.)

    •  It connects entire networks to each other.
    •  It requires hosts to send TCP/IP traffic through a VPN gateway.
    •  It is used to connect individual hosts securely to a company network over the Internet.
    •  It may require VPN client software on hosts.
    •  It requires static configuration of the VPN tunnel.

14. 14. Question

    Which is a requirement of a site-to-site VPN?

    •  It requires a client/server architecture.
    •  It requires the placement of a VPN server at the edge of the company network.
    •  It requires hosts to use VPN client software to encapsulate traffic.
    •  It requires a VPN gateway at each end of the tunnel to encrypt and decrypt traffic.

15. 15. Question

    What functionality does mGRE provide to the DMVPN technology?

    •  It allows the creation of dynamically allocated tunnels through a permanent tunnel source at the hub and dynamically allocated tunnel destinations at the spokes.
    •  It creates a distributed mapping database of public IP addresses for all VPN tunnel spokes.
    •  It provides secure transport of private information over public networks, such as the Internet.
    •  It is a Cisco software solution for building multiple VPNs in an easy, dynamic, and scalable manner.

16. 16. Question

    Which two scenarios are examples of remote access VPNs? (Choose two.)

    •  A toy manufacturer has a permanent VPN connection to one of its parts suppliers.
    •  All users at a large branch office can access company resources through a single VPN connection.
    •  A mobile sales agent is connecting to the company network via the Internet connection at a hotel.
    •  A small branch office with three employees has a Cisco ASA that is used to create a VPN connection to the HQ.
    •  An employee who is working from home uses VPN client software on a laptop in order to connect to the company network.

17. 17. Question

    Refer to the exhibit. What solution can provide a VPN between site A and site B to support encapsulation of any Layer 3 protocol between the internal networks at each site?

    

    CCNA4 v6.0 Chapter 3 Exam 002

    •  a GRE tunnel
    •  an IPsec tunnel
    •  a remote access tunnel
    •  Cisco SSL VPN

18. 18. Question

    Which three statements are characteristics of generic routing encapsulation (GRE)? (Choose three.)

    •  GRE encapsulation supports any OSI Layer 3 protocol.
    •  GRE is stateless.
    •  GRE does not have strong security mechanisms.
    •  The GRE header alone adds at least 24 bytes of overhead.
    •  GRE provides flow control by default.
    •  GRE is the most secure tunneling protocol.

19. 19. Question

    Refer to the exhibit. Which IP address is configured on the physical interface of the CORP router?

    

    CCNA4 v6.0 Chapter 3 Exam 005

    •  10.1.1.1
    •  10.1.1.2
    •  209.165.202.133
    •  209.165.202.134

20. 20. Question

    Refer to the exhibit. Which IP address would be configured on the tunnel interface of the destination router?

    

    CCNA4 v6.0 Chapter 3 Exam 003

    •  172.16.1.1
    •  172.16.1.2
    •  209.165.200.225
    •  209.165.200.226

21. 21. Question

    Refer to the exhibit. A tunnel was implemented between routers R1 and R2. Which two conclusions can be drawn from the R1 command output? (Choose two.)

    

    CCNA4 v6.0 Chapter 3 Exam 004

    •  This tunnel mode is not the default tunnel interface mode for Cisco IOS software.
    •  This tunnel mode provides encryption.
    •  The data that is sent across this tunnel is not secure.
    •  This tunnel mode does not support IP multicast tunneling.
    •  A GRE tunnel is being used.

22. 22. Question

    What is used by BGP to determine the best path to a destination?

    •  cost
    •  hop count
    •  attributes
    •  administrative distance

23. 23. Question

    What command specifies a BGP neighbor that has an IP address of 5.5.5.5/24 and that is in AS 500?

    •  (config-router)# neighbor 5.5.5.5 remote-as 500
    •  (config-router)# router bgp 500
    •  (config-router)# neighbor 500 remote-as 5.5.5.5
    •  (config-router)# network 5.0.0.0 0.0.0.255

24. 24. Question

    True or False?
    Multiple BGP processes can run on a router.

    •  true
    •  false

25. 25. Question

    Refer to the exhibit. Which two configurations will allow router R1 to establish a neighbor relationship with router R2? (Choose two.)

    

    CCNA4 v6.0 Chapter 3 Exam 001

    •  R1(config)# router bgp 65001
      R1(config-router)# network 192.168.20.0
    •  R1(config)# router bgp 65001
      R1(config-router)# network 192.168.10.0
      R1(config-router)# neighbor 209.165.200.226 remote-as 65002
    •  R1(config)# router bgp 65002
      R1(config-router)# network 192.168.20.0
      R1(config-router)# neighbor 209.165.200.225 remote-as 65001
    •  R2(config)# router bgp 65002
      R2(config-router)# network 192.168.10.0
    •  R2(config)# router bgp 65002
      R2(config-router)# network 192.168.10.0
      R2(config-router)# neighbor 209.165.200.226 remote-as 65002
    •  R2(config)# router bgp 65002
      R2(config-router)# network 192.168.20.0
      R2(config-router)# neighbor 209.165.200.225 remote-as 65001

26. 26. Question

    Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.

    What is the code displayed on the web page?

    •  Welldone!
    •  BGP is running!
    •  BGP is configured!
    •  Configuration is correct!

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