A Unique Quiz On CCNA – IPv6

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A Unique Quiz On CCNA  IPv6 - Quiz

In the following CCNA exam, we’ll be testing your knowledge of Internet Protocol version 6, the most recent version of the communications protocol which routes traffic across the internet and provides an identification and location system for devices on networks; the Internet Protocol. What can you tell us?


Questions and Answers
  • 1. 

    Which IPv6 address is valid?

    • A.

      2031:0:130F::9C0:876A:130B

    • B.

      2001:0DB8:0000:130F:0000:0000:08GC:140B

    • C.

      2001:0DB8:0:130H::87C:140B

    • D.

      2031::130F::9C0:876A:130B

    Correct Answer
    A. 2031:0:130F::9C0:876A:130B
    Explanation
    Answer B is not correct because it has a letter “G”.

    Answer C is not correct because it has a letter “H”.

    Answer D is not correct because it has two “::”.

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  • 2. 

    Which IPv6 address is the equivalent of the IPv4 interface loopback address 127.0.0.1?

    • A.

      ::1

    • B.

      ::

    • C.

      2000::/3

    • D.

      0::/10

    Correct Answer
    A. ::1
    Explanation
    The IPv6 address ::1 is the equivalent of the IPv4 interface loopback address 127.0.0.1. In both IPv4 and IPv6, the loopback address is used to test network connectivity on the local host. The IPv6 address ::1 is specifically reserved for the loopback address, just like 127.0.0.1 is reserved for loopback in IPv4.

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  • 3. 

    How many bits are contained in each field of an IPv6 address?

    • A.

      24

    • B.

      4

    • C.

      8

    • D.

      16

    Correct Answer
    D. 16
    Explanation
    An IPv6 address consists of 128 bits, divided into eight groups of 16 bits each. Each field of an IPv6 address contains 16 bits.

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  • 4. 

    Which IPv6 address is the all-router multicast group?

    • A.

      FF02::1

    • B.

      FF02::2

    • C.

      FF02::3

    • D.

      FF02::4

    Correct Answer
    B. FF02::2
    Explanation
    The correct answer is FF02::2. In IPv6, multicast addresses are used to send data to a group of devices. FF02::2 is the all-router multicast group address, which means it is used to send packets to all routers on a network.

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  • 5. 

    Which three are characteristics of an IPv6 anycast address? (Choose three)

    • A.

      One-to-many communication model

    • B.

      One-to-nearest communication model

    • C.

      Any-to-many communication model

    • D.

      A unique IPv6 address for each device in the group

    • E.

      The same address for multiple devices in the group

    • F.

      Delivery of packets to the group interface that is closest to the sending device

    Correct Answer(s)
    B. One-to-nearest communication model
    E. The same address for multiple devices in the group
    F. Delivery of packets to the group interface that is closest to the sending device
    Explanation
    An IPv6 anycast address is characterized by a one-to-nearest communication model, where a packet is delivered to the nearest interface among a group of devices sharing the same address. This allows for efficient routing and load balancing. Additionally, multiple devices in the group share the same anycast address, providing redundancy and fault tolerance.

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  • 6. 

    Which two are features of IPv6? (Choose two)

    • A.

      Multicast

    • B.

      Broadcast

    • C.

      Allcast

    • D.

      Podcast

    • E.

      Anycast

    Correct Answer(s)
    A. Multicast
    E. Anycast
    Explanation
    Anycast IPv6 addresses are 128-bit identifiers for interfaces and sets of interfaces. A packet sent to an anycast address is delivered to one of the interfaces identified by that address (the “nearest” one, according to the routing protocols’ measure of distance)

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  • 7. 

    Which three approaches can be used while migrating from an IPv4 addressing scheme to an IPv6 scheme? (Choose three)

    • A.

      Static mapping of IPv4 address to IPv6 addresses

    • B.

      Configuring IPv4 tunnels between IPv6 islands

    • C.

      Use DHCPv6 to map IPv4 addresses to IPv6 addresses

    • D.

      Use proxying and translation (NAT-PT) to translate IPv6 packets into IPv4 packets

    • E.

      Configure IPv6 directly

    • F.

      Enable dual-stack routing

    Correct Answer(s)
    B. Configuring IPv4 tunnels between IPv6 islands
    D. Use proxying and translation (NAT-PT) to translate IPv6 packets into IPv4 packets
    F. Enable dual-stack routing
    Explanation
    The three approaches that can be used while migrating from an IPv4 addressing scheme to an IPv6 scheme are configuring IPv4 tunnels between IPv6 islands, using proxying and translation (NAT-PT) to translate IPv6 packets into IPv4 packets, and enabling dual-stack routing. These methods allow for a smooth transition from IPv4 to IPv6 by establishing connectivity between IPv6 islands using IPv4 tunnels, translating IPv6 packets into IPv4 packets to ensure compatibility, and enabling dual-stack routing to support both IPv4 and IPv6 protocols simultaneously.

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  • 8. 

    Which of these represents an IPv6 link-local address?

    • A.

      FE08::280e:611:a:f14f.3d69

    • B.

      FE81::280f.512b:e14f:3d69

    • C.

      FE80::380e:611a:e14f:3d69

    • D.

      FEFE:0345:5f1b::e14d:3d69

    Correct Answer
    C. FE80::380e:611a:e14f:3d69
    Explanation
    The range of IPv6 link-local address (similar to the Windows auto-configuration IP address of 169.254.x.x.) is FE80::/10. For more information about IPv6, please read my IPv6 tutorial.

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  • 9. 

    Which command enables IPv6 forwarding on a cisco router?

    • A.

      IPv6 host

    • B.

      IPv6 unicast-routing

    • C.

      IPv6 local

    • D.

      IPv6 neighbor

    Correct Answer
    B. IPv6 unicast-routing
    Explanation
    An example of configuring RIPng (similar to RIPv2 but is used for IPv6) is shown below:

    Router(config)#ipv6 unicast-routing (Enables the forwarding of IPv6 unicast datagrams globally on the router)
    Router(config)#interface fa0/0
    Router(config-if)#ipv6 rip 9tut enable (9tut is the process name of this RIPng)

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  • 10. 

    Which two statements describe characteristics of IPv6 unicast addressing? (Choose two)

    • A.

      Global addresses start with 2000::/3

    • B.

      Link-local addresses start with FE00:/12

    • C.

      Link-local addresses start with FF00::/10

    • D.

      There is only one loopback address and it is ::1

    • E.

      If a global address is assigned to an interface, then that is the only allowable address for the interface.

    Correct Answer(s)
    A. Global addresses start with 2000::/3
    D. There is only one loopback address and it is ::1
    Explanation
    Below is the list of common kinds of IPv6 addresses:

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