NETW202 Quizzes Week 6: Quiz

March 2019

Week 6: Quiz

You have 1 hour and 30 minutes to complete this quiz.

Good luck!

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Attempt History

Question 1

0 / 5 pts

(TCO 4) Which of the following IPv4 addresses would never be seen on the Internet?

15.10.10.0

You Answered

170.28.0.88

240.123.35.110

Correct Answer

192.168.40.74

Chapter 8, Week 5 Lecture

Question 2 5 / 5 pts

(TCO 4) Which IPv6 address below is equivalent to the IPv4 loopback address? FE80::1

Correct!

::1

FF01::0001

::

Chapter 8, Week 5 Lecture

Question 3

0 / 5 pts

(TCO 4) _____ are defined in RFC 1918 as IP addresses that do not have to be globally unique, because the addresses exist inside packets forwarded within a single, private IP internetwork.

You Answered

Loopbacks

Scopes

Correct Answer

Private addresses

Public addresses

Chapter 8, Week 5 Lecture

Question 4

5 / 5 pts

(TCO 4) A user is unable to access the company server from a computer. On issuing the ipconfig command, the user finds that the IP address of the computer is displayed as 169.254.0.2. What type of address is this?

Experimental

Correct!

Link-local

Loopback

Private

Chapter 8, Week 5 Lecture

Question 5 0 / 5 pts

(TCO 4) The subnet mask is 255.255.255.224, which is written as _____in prefix length notation.

/25

/26

Correct Answer

/27

You Answered

/28

Chapter 8, Week 5 Lecture

Question 6

5 / 5 pts

(TCO 4) A computer on the network has been assigned the IP address = 172.20.68.12 with Subnet Mask = 255.255.192.0

What network does this computer belong to?

172.0.0.0

172.16.0.0

172.20.0.0

Correct!

172.20.64.0

Chapter 9, Week 6 Lecture. The network address will always have binary zeros in the host portion of the address.

Question 7

5 / 5 pts

( TCO 4) Consider the following range of addresses :

2001:0DB8:BC15:00A0:0000::

2001:0DB8:BC15:00A1:0000::

2001:0DB8:BC15:00A2:0000::

…

2001:0DB8:BC15:00AF:0000::

The prefix-length for the range of addresses is _____.

/74

Correct!

/72

/70

/68

Chapter 9, Week 6 Lecture. Subnetting an IPv6 network on the nibble boundary /72 enables the use of a complete hexadecimal value at the subnet boundaries.

Question 8

5 / 5 pts

(TCO 4) A user who is unable to connect to the file server contacts the help desk. The helpdesk technician asks the user to ping the IP address of the default gateway that is configured on the workstation. What is the purpose for this ping command?

To obtain a dynamic IP address from the server

To request the router to forward the connection request

To resolve the domain name of the file server to its IP address

Correct!

To test if the workstation can communicate on the network

Chapter 8, Week 5 Lecture

Question 9

8 / 8 pts

(TCO 4) What are three parts of an IPv6 global unicast address? (Choose three.) An interface ID that is used to identify the local network for a particular host

Correct!

A global routing prefix that is used to identify the network portion of the address that has been provided by an ISP

Correct!

A subnet ID that is used to identify networks inside of the local enterprise site

A global routing prefix that is used to identify the portion of the network address provided by a local administrator

Correct!

An interface ID that is used to identify the local host on the network

Chapter 8, Week 5 Lecture

Question 10

Not yet graded / 12 pts

(TCO 4) What is the purpose of NAT? What are its limitations?

Your Answer:

The purpose of the NAT is that it enables private IP networks that use unregistered IP addresses to connect to the internet. It works as a router by connecting two networks together. NAT works for IPv4, but doesn’t work for IPv6.

Chapter 8, Week 5. Answers may vary. RFC 1918 private addresses in combination with Network Address Translation (NAT) were instrumental in slowing the depletion of IPv4 address space. NAT has limitations that severely impede peer-to-peer communications. Its purpose is to take a private address and translate it into a public address for transit across the Internet. The returning message must go through the reverse translation so it can be sent to the requesting device.

Quiz Score: 33 out of 60

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34 minutes

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33 out of 60 * Kept Score:

33 out of 60

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