Quiz 4

Question 1

Which of the following representations of the 2001:0000:35d0:0000:5600:abed:e930:0001 address is invalid?

A)2001:0:35d0:0:5600:abcd:e930:1
B)2001:0000:35d0::5600:abed:e930:0001
C)2001::35d0:0:5600:abed:e930:1
D)2001::35d0:0:56:abed:e930:0001

Answer 1

D
Remember that only leading 0s can be removed from the address. Thus 5600 cannot be written as 56

Question 2

How many assignable IP addresses exist in the 172.16.1.10/28 network?

Answer 2

14
class A /8 class B /16 class C /24
this is a class c network ip address
/28 has 4 0s so (2^4)-2 = 14

Question 3

Which of the following can automatically assign routable IP addresses to networked devices?

Zeroconf
APIPA
BOOTP
DHCP

Answer 3

BOOTP
DHCP

Question 4

How many bits are in an IPv4 address?

Answer 4

32

Question 5

How many bits are in an IPv6 address?

Answer 5

128

Question 6

What is the result of the binary conversion in the example shown here?
10010110

Answer 6

150

Question 7

Which IP addresses assignment method leads to less administrative efforts for Information Technology professionals?

Answer 7

DHCP

IP addresses can be assigned by DHCP, which allows for automatic assignment of IP addresses to devices. Assigning IP addresses automatically decreases administrative overhead, reduces errors associated with manual IP address assignment and provides scalability to a network.

Question 8

What do sections A and B refer to in this IP address

11111111 00000000 00000000 00000000
1s section A of the subnet mask
0s section B of the subnet mask

Answer 8

Section A is the network portion, and Section B is the host portion.

Question 9

What is the network address for APIPA?

Answer 9

169.254.0.0/16

Question 10

What is the result of the binary conversion in the example shown here?

10000000

Answer 10

128

Question 11

You have an IP address with a prefix notation of /27. What is the dotted-decimal form of the subnet mask?

Answer 11

255.255.255.224
/27 has three extra 1s from /24
11100000
128+64+32 =224

Question 12

Which of these are some of the packet types associated with the NDP process?

A) Router Solicitation, Router Advertisement
B) IPCP configure-request, IPCP configure-ack
C) DHCPDISCOVER, DHCPOFFER
D) Down, init, two-way, exstart, exchange

Answer 12

Router Solicitation, Router Advertisement

Question 13

What symbol can be used to represent a group of consecutive 0s in an IPv6 address?

Answer 13

Double colon ::

Question 14

You have a subnet mask of 255.255.255.248. What is the prefix notation?

Answer 14

/29
class c /24
248-128=120 add 1
120-64=56 add 1
56-32=24 add 1
24-16=8 add 1
8-8=0 add 1

24+5 = 29

Question 15

What standard is commonly used by an IPv6 host to generate its own 64-bit host ID?

Answer 15

EUI-64
Automatic generation of a unique host ID is made possible through a process known as EUI-64. This uses the 48-bit MAC address on the device to aid in the generation of the unique 64-bit host ID. This allows you to create an IPv6 network free of DHCP-type services

Question 16

What is the binary equivalent of the decimal number 49?

Answer 16

00110001
49>= 128 no
49>= 64 no
49>= 32 yes so 49-32=17
17>=16 yes so 17-16=1
1>=8 no
1>=4 no
1>=2 no
1>=1 yes 1-1=0