CCNA 4 Final Exam

145 Questions | Total Attempts: 37

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CCNA 4 Final Exam

CCNA 4 Final Exam.


Questions and Answers
  • 1. 
    Which statement best describes a WAN?
    • A. 

      A WAN interconnects LANs over long distances.

    • B. 

      A WAN is a public utility that enables access to the Internet.

    • C. 

      WAN is another name for the Internet.

    • D. 

      A WAN is a LAN that is extended to provide secure remote network access.

  • 2. 
    Connecting offices at different locations using the Internet can be economical for a business. What are two important business policy issues that should be addressed when using the Internet for this purpose? (Choose two.)
    • A. 

      Addressing

    • B. 

      Bandwidth

    • C. 

      Privacy

    • D. 

      Security

    • E. 

      WAN technology

  • 3. 
    What is a disadvafntage of a packet-switched network compared to a circuit-switched network?
    • A. 

      Fixed capacity

    • B. 

      Higher latency

    • C. 

      Less flexibility

    • D. 

      Higher cost

  • 4. 
    A company is considering updating the campus WAN connection. Which two WAN options are examples of the private WAN architecture? (Choose two.)
    • A. 

      Cable

    • B. 

      Leased line

    • C. 

      Ethernet WAN

    • D. 

      Municipal Wi-Fi

    • E. 

      Digital subscriber line

  • 5. 
    Which statement describes a characteristic of dense wavelength division multiplexing (DWDM)?
    • A. 

      It supports the SONET standard, but not the SDH standard.

    • B. 

      It enables bidirectional communications over one pair of copper cables.

    • C. 

      It can be used in long-range communications, like connections between ISPs.

    • D. 

      It assigns incoming electrical signals to specific frequencies.

  • 6. 
    Which WAN technology can serve as the underlying network to carry multiple types of network traffic such as IP, ATM, Ethernet, and DSL?
    • A. 

      ISDN

    • B. 

      Frame Relay

    • C. 

      Ethernet WAN

    • D. 

      MPLS

  • 7. 
    Which two WAN technologies are more likely to be used by a business than by teleworkers or home users? (Choose two.)
    • A. 

      Cable

    • B. 

      DSL

    • C. 

      Frame Relay

    • D. 

      MetroE

    • E. 

      VPN

  • 8. 
    The security policy in a company specifies that the staff in the sales department must use a VPN to connect to the corporate network to access the sales data when they travel to meet customers. What component is needed by the sales staff to establish a remote VPN connection?
    • A. 

      VPN gateway

    • B. 

      VPN appliance

    • C. 

      VPN concentrator

    • D. 

      VPN client software

  • 9. 
    How many DS0 channels are bundled to produce a 1.544 Mbps T1 line?
    • A. 

      24

    • B. 

      2

    • C. 

      12

    • D. 

      28

  • 10. 
    What function is provided by Multilink PPP?
    • A. 

      Spreading traffic across multiple physical WAN links

    • B. 

      Dividing the bandwidth of a single link into separate time slots

    • C. 

      Enabling traffic from multiple VLANs to travel over a single Layer 2 link

    • D. 

      Creating one logical link between two LAN switches via the use of multiple physical links

  • 11. 
    Refer to the exhibit. A network administrator is configuring the PPP link between the routers R1 and R2. However, the link cannot be established. Based on the partial output of the show running-config command, what is the cause of the problem?
    • A. 

      The usernames do not match each other.

    • B. 

      The usernames do not match the host names.

    • C. 

      The passwords for CHAP should be in lowercase.

    • D. 

      The username r1 should be configured on the router R1 and the username r2 should be configured on the router R2.

  • 12. 
    Refer to the exhibit. A network administrator has configured routers RTA and RTB, but cannot ping from serial interface to serial interface. Which layer of the OSI model is the most likely cause of the problem?
    • A. 

      Application

    • B. 

      Transport

    • C. 

      Data link

    • D. 

      Network

    • E. 

      Physical

  • 13. 
    What advantage does DSL have compared to cable technology?
    • A. 

      DSL upload and download speeds are always the same.

    • B. 

      DSL is faster.

    • C. 

      DSL has no distance limitations.

    • D. 

      DSL is not a shared medium.

  • 14. 
    Which broadband technology would be best for a user that needs remote access when traveling in mountains and at sea?
    • A. 

      Satellite

    • B. 

      Wi-Fi Mesh

    • C. 

      Mobile broadband

    • D. 

      WiMax

  • 15. 
    Which technology requires the use of PPPoE to provide PPP connections to customers?
    • A. 

      Dialup analog modem

    • B. 

      DSL

    • C. 

      Dialup ISDN modem

    • D. 

      T1

  • 16. 
    Refer to the exhibit. What is the network administrator verifying when issuing the show ip interface brief command on R1 in respect to the PPPoE connection to R2?
    • A. 

      That the Dialer1 interface has been manually assigned an IP address

    • B. 

      That the Dialer1 interface is up and up

    • C. 

      That the Dialer1 interface has been assigned an IP address by the ISP router

    • D. 

      That the IP address on R1 G0/1 is in the same network range as the DSL modem

  • 17. 
    Which technology creates a mapping of public IP addresses for remote tunnel spokes in a DMVPN configuration?
    • A. 

      NHRP

    • B. 

      ARP

    • C. 

      NAT

    • D. 

      IPsec

  • 18. 
    What is the purpose of the generic routing encapsulation tunneling protocol?
    • A. 

      To provide packet level encryption of IP traffic between remote sites

    • B. 

      To support basic unencrypted IP tunneling using multivendor routers between remote sites

    • C. 

      To manage the transportation of IP multicast and multiprotocol traffic between remote sites

    • D. 

      To provide fixed flow-control mechanisms with IP tunneling between remote sites

  • 19. 
    Refer to the exhibit. What is used to exchange routing information between routers within each AS?
    • A. 

      Static routing

    • B. 

      EGP routing protocols

    • C. 

      Default routing

    • D. 

      IGP routing protocols

  • 20. 
    Which IPv4 address range covers all IP addresses that match the ACL filter specified by 172.16.2.0 with wildcard mask 0.0.1.255?
    • A. 

      172.16.2.0 to 172.16.3.255

    • B. 

      172.16.2.0 to 172.16.2.255

    • C. 

      172.16.2.1 to 172.16.3.254

    • D. 

      172.16.2.1 to 172.16.255.255

  • 21. 
    Refer to the exhibit. A named access list called chemistry_block has been written to prevent users on the Chemistry Network and public Internet from access to Records Server. All other users within the school should have access to this server. The list contains the following statements:
    • deny 172.16.102.0 0.0.0.255 172.16.104.252 0.0.0.0
    • permit 172.16.0.0 0.0.255.255 172.16.104.252 0.0.0.0
    Which command sequence will place this list to meet these requirements?
    • A. 

      Athena(config)# interface fa0/0 Athena(config-if)# ip access-group chemistry_block out

    • B. 

      Hera(config)# interface fa0/0 Hera(config-if)# ip access-group chemistry_block in

    • C. 

      Hera(config)# interface s0/0/0 Hera(config-if)# ip access-group chemistry_block out

    • D. 

      Apollo(config)# interface s0/0/0 Apollo(config-if)# ip access-group chemistry_block out

    • E. 

      Apollo(config)# interface s0/0/1 Apollo(config-if)# ip access-group chemistry_block in

  • 22. 
    What guideline is generally followed about the placement of extended access control lists?
    • A. 

      They should be placed as close as possible to the destination of the traffic to be denied.

    • B. 

      They should be placed as close as possible to the source of the traffic to be denied.

    • C. 

      They should be placed on the fastest interface available.

    • D. 

      They should be placed on the destination WAN link.

  • 23. 
    In the creation of an IPv6 ACL, what is the purpose of the implicit final command entries, permit icmp any any nd-na and permit icmp any any nd-ns?
    • A. 

      To allow forwarding of IPv6 multicast packets

    • B. 

      To allow automatic address configuration

    • C. 

      To allow IPv6 to MAC address resolution

    • D. 

      To allow forwarding of ICMPv6 packets

  • 24. 
    A network administrator is testing IPv6 connectivity to a web server. The network administrator does not want any other host to connect to the web server except for the one test computer. Which type of IPv6 ACL could be used for this situation?
    • A. 

      Only a standard ACL

    • B. 

      A standard or extended ACL

    • C. 

      Only an extended ACL

    • D. 

      Only a named ACL

    • E. 

      An extended, named, or numbered ACL

  • 25. 
    Refer to the exhibit. The IPv6 access list LIMITED_ACCESS is applied on the S0/0/0 interface of R1 in the inbound direction. Which IPv6 packets from the ISP will be dropped by the ACL on R1?
    • A. 

      ICMPv6 packets that are destined to PC1

    • B. 

      HTTPS packets to PC1

    • C. 

      Packets that are destined to PC1 on port 80

    • D. 

      Neighbor advertisements that are received from the ISP router

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