networking and ipv6 Flashcards Preview

2016 Master > networking and ipv6 > Flashcards

Flashcards in networking and ipv6 Deck (27):
1

In a /27 subnet and a Subnet Mask of 255.255.255.224, the customer has how many Public Routable IP addresses?

29 Public Routable IP Addresses

2

How many times in an IPv6 address can you use the double colon to omit zeroes?

Only once

3

In a /30 subnet and a Subnet Mask of 255.255.255.252, the customer has how many Public Routable IP addresses?

1 Public Routable IP Address

4

In a /29 subnet and a Subnet Mask of 255.255.255.248, the customer has how many Public Routable IP addresses?

5 Public Routable IP Addresses

5

How many addresses is IPv6 capable of?

Approximately 3.4E+11 or 340 undecillion

6

An IP address in the range of 128-191.X.X.X is what class of IP address?

Class B Public

7

Comcast is migrating to this version of IP which will allow for nearly unlimited IP addresses.

IPv6

8

192.168.X.X is an example of what class of IP address?

Class C Private

9

What types of addresses does IPv6 support?

Unicast addresses and multicast addresses

10

Where can a customer go to see what their IPv6 address is?

www.comcast6.net

11

What does DHCP stand for?

Dynamic Host Configuration Protocol

12

10.1.X.X is an example of what class of IP address?

Class A Private

13

An IP address in the range of 192-223.X.X.X is what class of IP address?

Class C Public

14

In a /28 subnet and a Subnet Mask of 255.255.255.240, the customer has how many Public Routable IP addresses?

13 Public Routable IP Addresses

15

What are the two currently used COMCAST DNS's?

75.75.75.75 and 75.75.76.76

16

What is the simplified version of the following IPv6 address? FE80:CD00:0000:0000:0000:0000:211E:729C

FE80:CD00::211E:729C

17

In IPv6, what is Duplicate Address Detection?

It is a mechanism that detects duplicate addresses on a subnet

18

What are the advantages of IPv6?

Simplified header format for efficient packet handlingLarger payload for increased throughput and transport efficiencyHierarchical network architecture for routing efficiencySupport for widely deployed routing protocols (OSPF, BGP, etc.)Autoconfiguration and plug-and-play supportElimination of need for network address translation (NAT) and application layered gateway (ALG)Increased number of multicast addresses

19

How many bits is the address field for IPv6?

128

20

An IP address in the range of: 1-127.X.X.X is what class of IP address?

Class A Public

21

Comcast is continuing to provide an IPv4 address to each customer and is now additionally providing IPv6 addresses.  What is this approach referred to?

Dual Stack Mode

22

What is dual stack mode?

When IPv4 and IPv6 run on the same network infrastructure

23

One way technicians can tell if an IPv6 compatible modem is having an issue related to IPv6 and is ranging is because "this" modem light will continue to blink.

Online

24

What is the loopback address for IPv6?

0000:0000:0000:0000:0000:0000:0000:0001or ::1

25

This tool in the National CMTS Operations Portal can be used by a field technician to verify a CMTS is set for IPv6, then switch the cable-mac that the modem is on to IPv4.

IPv6 to IPv4 MAC Switcher

26

How are IPv6 addresses written or expressed?

In 8 groups of 4 hexadecimal digits separated by colons

27

Why don't you need a traditional subnet mask for IPv6?

The subnet ID is built into the address

Decks in 2016 Master Class (110):