IPv6 Questions: Trivia Quiz! Exam

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  • 1/18 Questions

    How long is an IPv6 address?

    • 16 Hexadecimal numbers
    • 32 decimal numbers
    • 128 bits
    • 32 bits
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About This Quiz

Dive into the IPv6 Questions: Trivia Exam and test your knowledge on valid IPv6 addresses, address formats, autoconfiguration, and header fields. This quiz enhances your understanding of IPv6's features and configuration, crucial for networking professionals.

IPv6 Questions: Trivia Quiz! Exam - Quiz

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  • 2. 

    Which IPv6 address is equivalent tp FF01::1?

    • FF01:0:0:1

    • FF01:1:1:1

    • FF01:0:0:0:0:0:0:1

    • FF01:1:1:1:1:1:1:1

    Correct Answer
    A. FF01:0:0:0:0:0:0:1
    Explanation
    The given IPv6 address FF01::1 is equivalent to FF01:0:0:0:0:0:0:1. The "::" notation in IPv6 represents a series of consecutive zeros, so FF01::1 means that there are six consecutive zeros in the address. Therefore, FF01:0:0:0:0:0:0:1 is the correct equivalent address.

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  • 3. 

    How many bytes is an IPv6 address?

    • 4

    • 8

    • 12

    • 16

    Correct Answer
    A. 16
    Explanation
    An IPv6 address is represented by 128 bits, which is equal to 16 bytes. Each byte consists of 8 bits, so 16 bytes multiplied by 8 bits per byte gives us a total of 128 bits. Therefore, the correct answer is 16.

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  • 4. 

    Which of the following is a valid IPv6 address?

    • 4021::240E::0AC0:3428:121C

    • 4021:240E::0AC0:3428::

    • 4021::0000::240E::0000::0000:0AC0::3428::121C

    • 4021:0:240E::0AC0:3428:121C

    Correct Answer
    A. 4021:0:240E::0AC0:3428:121C
  • 5. 

    In IPv6 autoconfiguration, what does "RA" mean?

    • Remote access

    • Reusable address

    • Anycast address

    • Router advertisement

    Correct Answer
    A. Router advertisement
    Explanation
    In IPv6 autoconfiguration, "RA" stands for Router Advertisement. Router Advertisement is a message sent by a router to inform other devices on the network about its presence and to provide them with necessary network configuration information, such as the network prefix and default gateway. This allows the devices to automatically configure their IPv6 addresses and network settings without the need for manual configuration.

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  • 6. 

    IPv6 does not use broadcast addresses, instead it uses? (choose two)

    • Next header address

    • Payload sessions

    • Multicast

    • Anycast

    Correct Answer(s)
    A. Multicast
    A. Anycast
    Explanation
    IPv6 does not use broadcast addresses because they were replaced with multicast and anycast addresses. Multicast allows a single packet to be sent to multiple destinations simultaneously, while anycast allows a packet to be sent to the nearest destination out of a group of potential destinations. This improves efficiency and reduces network congestion compared to traditional broadcasting.

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  • 7. 

    The multicast address range for IPv6 is which of the following?

    • F000::/8 - FF0F::/8

    • FF00::/8 - FFFF::/8

    • F000::/8 - FFFF::/8

    • FF00::/8 - FF0F::/8

    Correct Answer
    A. FF00::/8 - FFFF::/8
    Explanation
    The correct answer is FF00::/8 - FFFF::/8. This range represents the multicast address range for IPv6. Multicast addresses in IPv6 are used to send packets to a group of devices rather than a single device. The FF00::/8 prefix is reserved for multicast addresses, and the range extends up to FFFF::/8.

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  • 8. 

    If an IPv4 header is typically 20 bytes long, how long will an IPv6 header be (assuming no option field)?

    • 20 byte

    • 40 byte

    • 60 byte

    • 80 byte

    Correct Answer
    A. 40 byte
    Explanation
    The IPv6 header is typically 40 bytes long, which is twice the size of an IPv4 header. This is because IPv6 was designed to support more advanced features and provide a larger address space compared to IPv4. The increased header size allows for the inclusion of additional fields and options in the IPv6 header.

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  • 9. 

    What type of information is sent during RA autoconfiguration?

    • Network prefix and default gateway

    • Complete IPv6 address for the new host

    • Complete IPv6 address for the router

    • Link-layer address of the router

    Correct Answer
    A. Network prefix and default gateway
    Explanation
    During RA autoconfiguration, the network prefix and default gateway information is sent. This means that the new host receives the necessary information about the network it is connecting to, including the address range and the default gateway through which it can access other networks. This enables the host to configure its own IPv6 address and establish proper network connectivity.

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  • 10. 

    How is the TTL field in the IPv4 header represented in IPv6?

    • TTL has not changed from IPv4

    • It is the hop limit

    • TTL is not required in IPv6

    • It is the maximum routers field

    Correct Answer
    A. It is the hop limit
    Explanation
    In IPv6, the TTL field in the IPv4 header is represented as the hop limit. This field serves the same purpose as the TTL field in IPv4, which is to prevent packets from circulating indefinitely in the network. The hop limit specifies the maximum number of routers that a packet can traverse before being discarded. Therefore, the correct answer is "It is the hop limit."

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  • 11. 

    Which three features are important in ipv6? (choose three)

    • Larger address space

    • Security

    • Shorter header

    • Simpler header

    • Broadcast

    Correct Answer(s)
    A. Larger address space
    A. Security
    A. Simpler header
    Explanation
    IPv6 has a larger address space compared to IPv4, allowing for more unique IP addresses to be assigned. This is important as the number of devices connected to the internet continues to grow. Security is also crucial in IPv6, with features like IPsec being built into the protocol to ensure secure communication. Additionally, IPv6 has a simpler header compared to IPv4, which improves efficiency and simplifies network operations.

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  • 12. 

    In the IPv6 header, the traffic class field is similar to which field in the IPv4 header?

    • Fragmentation field

    • Fast-switching field

    • ToS field

    • Option field

    Correct Answer
    A. ToS field
    Explanation
    In the IPv6 header, the traffic class field is similar to the ToS (Type of Service) field in the IPv4 header. The ToS field in IPv4 is used to prioritize different types of traffic, such as voice or video, and assign them different levels of service. Similarly, the traffic class field in IPv6 is used to classify and prioritize traffic flows based on their requirements, allowing for more efficient and optimized routing of packets. Both fields serve a similar purpose in determining the treatment of different types of traffic in their respective IP versions.

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  • 13. 

    Which is an attractive feature of a 6to4 tunnel?

    • The tunnel automatically establishes itself

    • The tunnel requires manual configuration

    • The routers require no special code to support this tunnel technique

    • Tunnel routers are not required at both ends of the tunnel

    Correct Answer
    A. The tunnel automatically establishes itself
    Explanation
    An attractive feature of a 6to4 tunnel is that it automatically establishes itself. This means that the tunnel is able to set up and configure itself without requiring manual intervention or configuration. This feature makes it convenient and efficient to use as it saves time and effort for the user.

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  • 14. 

    In the IPv6 address format a colon (:) is used tp separate?

    • Each byte in the address

    • Every 2 bytes

    • Every 4 bytes

    • None of the above

    Correct Answer
    A. Every 2 bytes
    Explanation
    In the IPv6 address format, a colon (:) is used to separate every 2 bytes in the address. IPv6 addresses are 128 bits long and are represented in eight groups of four hexadecimal digits separated by colons. Each group represents 16 bits or 2 bytes of the address. Therefore, the correct answer is "Every 2 bytes."

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  • 15. 

    Which default JUNOS routing table contains IPv6 unicast routes?

    • Inet.6

    • Ipv6.0

    • Inet.0

    • Inet6.0

    Correct Answer
    A. Inet6.0
    Explanation
    The correct answer is inet6.0. This routing table is specifically designed for storing IPv6 unicast routes. The "inet6" prefix in the table name indicates that it is dedicated to IPv6 routing. The other options (inet.6, ipv6.0, inet.0) do not specifically mention IPv6, indicating that they are not meant for storing IPv6 unicast routes.

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  • 16. 

    Which function does the flow label field in the IPv6 header perform?

    • Priority queuing

    • Fast-switching queuing

    • Mulitilayer switching techniques

    • Fragmentation

    Correct Answer
    A. Mulitilayer switching techniques
    Explanation
    The flow label field in the IPv6 header performs multilayer switching techniques. This field is used to identify and classify packets belonging to the same flow or communication session. It allows routers to make intelligent decisions on how to handle and forward packets, improving the efficiency and performance of the network. By using multilayer switching techniques, such as traffic engineering or load balancing, routers can optimize the flow of packets and ensure the smooth delivery of data.

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  • 17. 

    Extension headers in IPv6 are used for? (choose two)

    • Routing header

    • Source option header

    • Fragment header

    • Broadcast header

    Correct Answer(s)
    A. Routing header
    A. Fragment header
    Explanation
    Extension headers in IPv6 are used for two purposes: routing and fragmentation. The routing header is used to specify the route that a packet should take through the network. It allows a packet to be forwarded along a specific path, rather than relying solely on the destination address. The fragment header is used to break a large IPv6 packet into smaller fragments that can be reassembled at the destination. This is useful when the size of the packet exceeds the maximum transmission unit (MTU) of a network link. The source option header and broadcast header are not valid uses of extension headers in IPv6.

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  • 18. 

    In Junos software, which three routing protocols can be used to route IPv6? (choose three)

    • IS-IS

    • Static

    • RipV2

    • OSPFV2

    • MP-BGP

    Correct Answer(s)
    A. IS-IS
    A. Static
    A. MP-BGP
    Explanation
    IS-IS, Static, and MP-BGP are the three routing protocols in Junos software that can be used to route IPv6. IS-IS (Intermediate System to Intermediate System) is a link-state interior gateway protocol that supports both IPv4 and IPv6. Static routing is a manual configuration of specific routes and can be used for both IPv4 and IPv6. MP-BGP (Multiprotocol Border Gateway Protocol) is an extension of BGP that supports multiple protocols, including IPv6. OSPFv2 and RIPV2 are not mentioned as options for routing IPv6 in Junos software.

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Quiz Review Timeline (Updated): Mar 21, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 11, 2011
    Quiz Created by
    Apalani
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