Online exam

1. Which of the error-reporting messages below are not required in ICMPv6?
   Source quench
   Destination unreachable
   Parameter problem
   Time exceeded
   
   
2. ICMPv6 is a multipurpose protocol using. which of the following is ICMPv6 not used for?

   reporting errors encountered in processing packets
   performing diagnostics
   performing Neighbor Discovery
   reporting anycast memberships
   reporting multicast memberships
   
   

3. What of the following is not part of ICMPv6 packet format:

   Type
   header
   Code
   Checksum
   ICMPv6 message
   
   

4. What is the size in bits of Code ICMPv6 packet field:

   16 bits
   18 bits
   10 bits
   8 bits
   
   

5. Which of the following is not ICMPv6 error message:

   Destination unreachable
   Packet too big
   Echo Reply
   Parameter problem
   Time exceeded
   
   

6. Which of the following is the purpose of the field Code in ICMPv6 packet?

   The code field indicates the type of the message. Its value determines the format of the remaining data.
   The code field depends on the message type. It is used to create an additional level of message granularity.
   The code field is used to detect data corruption in the ICMPv6 message and parts of the IPv6 header.
   The subclass of ICMPv6 code used for reporting errors.
   
   

7. What of the following is not a reason for sending the Destination Unreachable message?

   No route to destination.
   Communication with destination administratively prohibited.
   Not a neighbor
   Local computer unreachable
   Port unreachable
   
   

8. Which of the following is wrong regarding Neighbor Solicitation Message?

   The Hop Limit field of the IPv6 header is set to 255.
   The Priority field of the IPv6 header is set to 15.
   The Code field is equal to one.
   The Type field is equal to 135.
   
   

9. Which of the following is wrong regarding Neighbor Advertisement Message?

   The Hop Limit field of the IPv6 header is set equal to 255.
   The Priority field of the IPv6 header is set to 15.
   The Code field is equal to zero.
   The Type field is set equal to 137.
   
   

10. Which of the following is wrong regarding Destination Unreachable Message?

    It is only used for local purposes, not for end-to-end communications.
    This message is always sent between unicast addresses.
    The ICMPv6 type of this message is 1.
    It is an end to end message.

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