Summary

Summary

In this chapter we have examined the future of the Internet Protocol (IP) as embodied by IPv6, which is the next-generation IP. The areas in which IPv6 introduces the greatest changes are the areas of security, addressing, routing, and quality of service. Much of the detail in IPv6 differs from IPv4, and these changes were covered in detail in this chapter.

Questions

1. 

What is the limit of the IPv4 address pool?

  1. 4,300,000,000 hosts

  2. 300,000,000 hosts

  3. 30,000,000 hosts

  4. 43,000,000 hosts

 A. The limit of the IPv4 address pool is 4,300,000,000 hosts.

2. 

What stopgap measure has been used to limit the problems caused by the IPv4 address pool size?

  1. Network Address Translation

  2. Domain Name Service

  3. Internet Protocol Security

  4. Network Information Service

 A. Network Address Translation has been used as a stopgap measure to limit the problems caused by the IPv4 address pool size.

3. 

Which of the following is not a serious limitation of IPv4?

  1. Breaking of end-to-end communication

  2. 128-bit IP addresses

  3. Massive routing tables

  4. IP address availability

 B. IPv4 addresses only have 32 bits.

4. 

What issue does IPv6 not explicitly address?

  1. Providing a large pool of addresses

  2. Preserving end-to-end communications

  3. Simplified routing

  4. Fewer IP headers

 D. IPv6 actually increases the number of headers.

5. 

In what form does Solaris 9 support IPv6?

  1. It does not support IPv6

  2. It supports IPv6 but not IPv4

  3. It supports IPv6 and IPv4 in separate stacks

  4. It supports IPv6 and IPv4 in the same stack

 D. Solaris 9 supports a dual-stack implementation.

6. 

Name one immediate benefit for autoconfiguration of interfaces provided by IPv6?

  1. More IP addresses

  2. Not having to know the subnet mask

  3. Fewer network administrators

  4. Faster transmission rates

 B. Autoconfiguration does not require knowledge of the subnet mask.

7. 

Which of the following is an identifier for a single specific interface?

  1. Unicast

  2. Multicast

  3. Anycast

  4. Broadcast

 A. Unicast is an identifier for a single specific interface.

8. 

Which of the following is an identifier for all interfaces in a set?

  1. Unicast

  2. Multicast

  3. Anycast

  4. Broadcast

 B. Multicast is an identifier for all interfaces in a set.

9. 

Which of the following is an identifier for a single interface that is the member of a set?

  1. Unicast

  2. Multicast

  3. Anycast

  4. Broadcast

 C. Anycast is an identifier for a single interface that is the member of a set.

10. 

What is the IPv6 loopback address?

  1. 0:0:0:0:0:0:0:1

  2. 96 bits zero-padded to the 32-bit original address

  3. 1111 1110 11

  4. 1111 1110 10

 A. 0:0:0:0:0:0:0:1 is the IPv6 loopback address.

11. 

What is the IPv6 version of an IPv4 address?

  1. 0:0:0:0:0:0:0:1

  2. 96 bits zero-padded to the 32-bit original address

  3. 1111 1110 11

  4. 1111 1110 10

 B. 96 bits zero-padded to the 32-bit original address is the IPv6 version of an IPv4 address.

12. 

What is the IPv6 local site address?

  1. 0:0:0:0:0:0:0:1

  2. 96 bits zero-padded to the 32-bit original address

  3. 1111 1110 11

  4. 1111 1110 10

 C.  1111 1110 11 is the IPv6 local site address.

13. 

What is the IPv6 local link address?

  1. 0:0:0:0:0:0:0:1

  2. 96 bits zero-padded to the 32-bit original address

  3. 1111 1110 11

  4. 1111 1110 10

 D.  1111 1110 10 is the IPv6 local link address.

14. 

How else could the address 1080:0:0:0:0:151:200A:305C be represented?

  1. 1080::151:200A:305C

  2. 1080:0:0:0: 151:200A:305C

  3. 1080:0:0:0:*:151:200A:305C

  4. 1080:*:151:200A:305C

 A. The address 1080:0:0:0:0:151:200A:305C could be represented by 1080::151:200A:305C.

15. 

Which routing protocol is supported by IPv6?

  1. Open Shortest Path First (OSPF)

  2. Routing Information Protocol (RIP)

  3. Inter-Domain Routing Protocol (IDRP)

  4. All of the above

 D. All of these routing protocols are supported by IPv6.

Answers

1. 

A. The limit of the IPv4 address pool is 4,300,000,000 hosts.

2. 

A. Network Address Translation has been used as a stopgap measure to limit the problems caused by the IPv4 address pool size.

3. 

B. IPv4 addresses only have 32 bits.

4. 

D. IPv6 actually increases the number of headers.

5. 

D. Solaris 9 supports a dual-stack implementation.

6. 

B. Autoconfiguration does not require knowledge of the subnet mask.

7. 

A. Unicast is an identifier for a single specific interface.

8. 

B. Multicast is an identifier for all interfaces in a set.

9. 

C. Anycast is an identifier for a single interface that is the member of a set.

10. 

A. 0:0:0:0:0:0:0:1 is the IPv6 loopback address.

11. 

B. 96 bits zero-padded to the 32-bit original address is the IPv6 version of an IPv4 address.

12. 

C. 1111 1110 11 is the IPv6 local site address.

13. 

D. 1111 1110 10 is the IPv6 local link address.

14. 

A. The address 1080:0:0:0:0:151:200A:305C could be represented by 1080::151:200A:305C.

15. 

D. All of these routing protocols are supported by IPv6.



Part I: Solaris 9 Operating Environment, Exam I
 
ASPTreeView.com
 
Evaluation has БЙККМТ№ВПѕОexpired.
Info...