#CCENT and #CCNA Fast Start: an IPv6 Address Question

You take a new #CCENT or #CCNA practice exam, and see a few questions about IPv6 addresses. You focused on the basic format – how to abbreviate, how to expand, and what the prefix length means. Then the practice exam asks you something about which address is in which category, or what it’s used for normally, and all you see is the hexadecimal address – so you draw a blank. Today’s post poses an ICND1 level IPv6 addressing question that makes you think about the usage of an IPv6 address, based on the address value itself, taking the discussion a bit beyond just how to decipher the numbers.

The Question

(Wendell’s note to self: internal question number 112.)

Host A, in a bank branch office in Atlanta, Ga., is able to send IPv6 packets back and forth with server S1 in Charlotte, NC. The routers use OSPFv3. Which of the following address(es) could be used as the next-hop IPv6 address of the route, learned with OSPFv3, that router R1 uses to forward an IPv6 packet from host A to server S1?

A) 3456:1234:5678:9AB:1111:2222:3333:4444

B) FE80::200:FF:FE00:1111

C) FD00:DEAD:BEEF:CAFE:101:20:3:1111

D) FF02::1:FF00:1234

E) ::

F) FF02::5

(Note that unlike the real Cisco exams, this sample question does NOT identify the number of correct answers, just to add to the challenge level.)

Figure 1: Figure Used with IPv6 Addressing Question

Answers next post. Enjoy!

Related Posts

Introduction to this topic as it exists in the new CCENT and CCNA exams:

More Practice Questions:

This question is like those you get if when you buy the ICND1 100-101 Official Cert Guide. This blog also lists various practice questions as well. For more questions on a large variety of topics:

• Look at the Questions tab in the www.ccentskills.com blog
• Look at the Questions tab in the www.ccnaskills.com blog
• Use the practice tests that come with the printed version of the book
• Get additional exam banks, even more than the print book, with the Premium Edition of the Book, available only from the publisher