Chapter 7: Introduction to TCP/IP

Question 1

T/F All of the addresses that are used on the Internet are called public addresses that are dedicated to a single network . pg. 325

Answer 1

False; Public IP addresses must be purchased and only one computer can use any given public address at one time.

Question 2

What was created to resolve the issue of running out of TCP/IP Public addresses? pg. 325

Answer 2

Private addresses

Question 3

T/F Private addresses are routable on the internet. pg. 325

Answer 3

False; private addresses are not routable since they were intended to be used on private networks.

Question 4

Since public addresses are globally unique, but private addresses are not, what service was created in order for private addresses to access the internet? pg. 325

Answer 4

NAT - Network Address Translation

Question 5

What are the Private IP address range classes? pg. 325

Answer 5

A for 1M+, B for 1M, C for 65, 536 …..hosts

Question 6

Define NAT pg. 326

Answer 6

NAT / Network Address Translation is a one-to-one private-to-public IP address translation protocol.

Question 7

T/F If your using NAT on your internal network, you still need protective features such as firewalls and antimalware software. pg. 326

Answer 7

True

Question 8

What’s APIPA? pg. 326

Answer 8

Automatic Private IP Addressing which is a TCP/IP standard used to automatically configure IP-based hosts that are unable to reach a DHCP server.

Question 9

T/F APIPA is typically only used when a computer is due to receive configuration info from the DHCP server, but it’s re-routed to a new IP address. pg. 326

Answer 9

False……APIPA shows up when the DHCP server is unavailable and continues to broadcast to that DHCP to receive an address once the server is available

Question 10

APIPA is also sometimes known as……?? pg. 326

Answer 10

zero configuration networking or address auto-configuration

Question 11

IPv4 has 32 bits, so how many bits in IPv6 ? pg. 327

Answer 11

128

Question 12

What makes IPv6 sparkle in comparison to IPv4?

Answer 12

automatic configuration and enhanced flexibility

Question 13

IPv6 has three address classes……name them. pg. 328

Answer 13

unicast, anycast, mulitcast

Question 14

T/F IPv6 does not employ broadcast addresses. pg. 328

Answer 14

True

Question 15

Which of the three IPv6 address classes handles the broadcast functionality? pg. 328

Answer 15

mulitcast

Question 16

It’s impossible to tell the difference between __ and __ addresses because their structure is the same. pg. 328

Answer 16

unicast & anycast

Question 17

How many bits does a multicast address use as the prefix. pg. 328

Answer 17

8 bits

Question 18

The length of the network portion of the IPv4 address is the ___. pg. 328

Answer 18

subnet mask

Question 19

T/F Although IPv6 does not use a subnet mask, the same convention for stating the network length holds true. pg. 328

Answer 19

True

Question 20

The number after the slash of an IPv6 network address indicates how many bits are in the ___ ____. pg. 328

Answer 20

routing prefix

Question 21

The first four fields, or 64 bits, of unicast and anycast addresses refer to the ____ and ____. pg. 328

Answer 21

network and subnetwork

Question 22

Since IPv6 addresses are quite long, you can write them in short-hand by eliminating what information? pg. 329

Answer 22

extra zeroes

Question 23

The second IPv6 accepted shortcut is to replace consecutive groups of zeroes with what? pg. 329

Answer 23

double colon :

Question 24

What are the two address differences that IPv6 has instead of IPv4? pg. 328

Answer 24

the address space is longer and IPv6 uses hexadecimal notation instead of the familiar dotted decimal of IPv4

Question 25

T/F Every IPv6-enabled interface is required to have a link-local address which is nonroutable. pg. 3209

Answer 25

True