CCNA 4 V6.0 Final Exam Answers 100% Option B

55 Questions | Total Attempts: 197

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CCNA 4 V6.0 Final Exam Answers 100% Option B

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Questions and Answers
  • 1. 
    Which circumstance would result in an enterprise deciding to implement a corporate WAN?
    • A. 

      When its employees become distributed across many branch locations

    • B. 

      When the network will span multiple buildings

    • C. 

      When the number of employees exceeds the capacity of the LAN

    • D. 

      When the enterprise decides to secure its corporate LAN

  • 2. 
    What are two types of WAN providers? (Choose two.)
    • A. 

      DNS servers

    • B. 

      Satellite service

    • C. 

      Web hosting service

    • D. 

      Telephone company

    • E. 

      Internet search engine service

  • 3. 
    Which two types of devices are specific to WAN environments and are not found on a LAN? (Choose two.)
    • A. 

      Access layer switch

    • B. 

      Broadband modem

    • C. 

      Core switch

    • D. 

      CSU/DSU​

    • E. 

      Distribution layer router

  • 4. 
    What is a feature of dense wavelength-division multiplexing (DWDM) technology?
    • A. 

      It replaces SONET and SDH technologies.

    • B. 

      It enables bidirectional communications over one strand of fiber.

    • C. 

      It provides Layer 3 support for long distance data communications.

    • D. 

      It provides a 10 Gb/s multiplexed signal over analog copper telephone lines.

  • 5. 
    What is a disadvantage of ATM compared to Frame Relay?
    • A. 

      Less efficient

    • B. 

      Lacks SVC support

    • C. 

      Does not scale well to provide high speed WAN connections

    • D. 

      Requires multiple interfaces on the edge router to support multiple VCs

  • 6. 
    Which WAN solution uses labels to identify the path in sending packets through a provider network?
    • A. 

      Cable

    • B. 

      DSL

    • C. 

      Frame Relay

    • D. 

      MPLS

    • E. 

      VSAT

  • 7. 
    An intercity bus company wants to offer constant Internet connectivity to the users traveling on the buses. Which two types of WAN infrastructure would meet the requirements? (Choose two.)
    • A. 

      Private infrastructure

    • B. 

      Public infrastructure

    • C. 

      Dedicated

    • D. 

      Circuit-switched

    • E. 

      Cellular

  • 8. 
    What device is needed at a central office to aggregate many digital subscriber lines from customers?
    • A. 

      CMTS

    • B. 

      DSLAM

    • C. 

      CSU/DSU

    • D. 

      Access server

  • 9. 
    A corporation is searching for an easy and low cost solution to provide teleworkers with a secure connection to headquarters. Which solution should be selected?
    • A. 

      Dial-up connection

    • B. 

      Leased line connection

    • C. 

      Site-to-site VPN over the Internet

    • D. 

      Remote access VPN over the Internet

  • 10. 
    What is the maximum number of DS0 channels in a 1.544 Mbps T1 line?
    • A. 

      2

    • B. 

      12

    • C. 

      24

    • D. 

      28

  • 11. 
    Refer to the exhibit. What type of Layer 2 encapsulation will be used for RtrA connection D if it is left to the default and the router is a Cisco router?
    • A. 

      Ethernet

    • B. 

      Frame Relay

    • C. 

      HDLC

    • D. 

      PPP

  • 12. 
    Which two functions are provided by the NCP during a PPP connection? (Choose two.)
    • A. 

      Identifying fault conditions for the PPP link

    • B. 

      Providing multilink capabilities over the PPP link

    • C. 

      Bringing the network layer protocol or protocols up and down

    • D. 

      Enhancing security by providing callback over PPP

    • E. 

      Negotiating options for the IP protocol

    • F. 

      Managing authentication of the peer routers of the PPP link

  • 13. 
    What PPP information will be displayed if a network engineer issues the show ppp multilink command on Cisco router?
    • A. 

      The link LCP and NCP status

    • B. 

      The queuing type on the link

    • C. 

      The IP addresses of the link interfaces

    • D. 

      The serial interfaces participating in the multilink

  • 14. 
    Refer to the exhibit. Which statement describes the status of the PPP connection?
    • A. 

      Only the link-establishment phase completed successfully.

    • B. 

      Only the network-layer phase completed successfully.

    • C. 

      Neither the link-establishment phase nor the network-layer phase completed successfully.

    • D. 

      Both the link-establishment and network-layer phase completed successfully.

  • 15. 
    A network administrator is configuring a PPP link with the commands: R1(config-if)# encapsulation ppp R1(config-if)# ppp quality 70 What is the effect of these commands?
    • A. 

      The PPP link will be closed down if the link quality drops below 70 percent.

    • B. 

      The NCP will send a message to the sending device if the link usage reaches 70 percent.

    • C. 

      The LCP establishment phase will not start until the bandwidth reaches 70 percent or more.

    • D. 

      The PPP link will not be established if more than 30 percent of options cannot be accepted.

  • 16. 
    How does virtualization help with disaster recovery within a data center?
    • A. 

      Power is always provided.

    • B. 

      Less energy is consumed.

    • C. 

      Server provisioning is faster.

    • D. 

      Hardware does not have to be identical.

  • 17. 
    Which broadband solution is appropriate for a home user who needs a wired connection not limited by distance?
    • A. 

      Cable

    • B. 

      DSL

    • C. 

      WiMax

    • D. 

      ADSL

  • 18. 
    What is the protocol that provides ISPs the ability to send PPP frames over DSL networks?
    • A. 

      PPPoE

    • B. 

      CHAP

    • C. 

      ADSL

    • D. 

      LTE

  • 19. 
    In software defined network architecture, what function is removed from network devices and performed by an SDN controller?
    • A. 

      Control plane

    • B. 

      Data plane

    • C. 

      Security

    • D. 

      Application policies

  • 20. 
    What would a network administrator expect the routing table of stub router R1 to look like if connectivity to the ISP was established via a PPPoE configuration?
    • A. 

      192.168.1.0/32 is subnetted, 2 subnetted C 192.168.1.1 is directly connected, Dialer1​ C 192.168.1.2 is directly connected, Dialer2​

    • B. 

      S* 0.0.0.0/0 is directly connected, Dialer1​​

    • C. 

      192.168.1.0/32 is subnetted, 2 subnetted C 192.168.1.1 is directly connected, Dialer

    • D. 

      S* 0.0.0.0/0 is directly connected, Dialer1 ​ 192.168.1.0/32 is subnetted, 2 subnetted C 192.168.1.1 is directly connected, Dialer1​ C 192.168.1.2 is directly connected, Dialer1

  • 21. 
    What is a benefit of implementing a Dynamic Multipoint VPN network design?
    • A. 

      A DMVPN will use an encrypted session and does not require IPsec.

    • B. 

      A DMVPN uses a Layer 3 protocol, NHRP, to dynamically establish tunnels.

    • C. 

      A DMVPN will support remote peers by providing a mapping database of public IP addresses to each one.

    • D. 

      A DMVPN uses mGRE to create multiple GRE interfaces that each support a single VPN tunnel.

  • 22. 
    Which remote access implementation scenario will support the use of generic routing encapsulation tunneling?
    • A. 

      A mobile user who connects to a router at a central site

    • B. 

      A branch office that connects securely to a central site

    • C. 

      A mobile user who connects to a SOHO site

    • D. 

      A central site that connects to a SOHO site without encryption

  • 23. 
    Refer to the exhibit. All routers are successfully running the BGP routing protocol. How many routers must use EBGP in order to share routing information across the autonomous systems?
    • A. 

      2

    • B. 

      3

    • C. 

      4

    • D. 

      5

  • 24. 
    Which statement describes a characteristic of standard IPv4 ACLs?
    • A. 

      They are configured in the interface configuration mode.

    • B. 

      They filter traffic based on source IP addresses only.

    • C. 

      They can be created with a number but not with a name.

    • D. 

      They can be configured to filter traffic based on both source IP addresses and source ports.

  • 25. 
    Which three values or sets of values are included when creating an extended access control list entry? (Choose three.)
    • A. 

      Access list number between 1 and 99

    • B. 

      Access list number between 100 and 199

    • C. 

      Default gateway address and wildcard mask

    • D. 

      Destination address and wildcard mask

    • E. 

      Source address and wildcard mask

    • F. 

      Source subnet mask and wildcard mask

    • G. 

      Destination subnet mask and wildcard mask