Modules 11 - 13: IP Addressing Exam

What is the prefix length notation for the subnet mask 255.255.255.224?

/27

How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?

62

Which subnet mask would be used if 5 host bits are available?

255.255.255.224

A network administrator subnets the 192.168.10.0/24 network into subnets with /26 masks. How many equal-sized subnets are created?

4

An administrator wants to create four subnetworks from the network address 192.168.1.0/24. What is the network address and subnet mask of the second useable subnet?

subnetwork 192.168.1.64subnet mask 255.255.255.192

How many bits must be borrowed from the host portion of an address to accommodate a router with five connected networks?

3

How many host addresses are available on the 192.168.10.128/26 network?

62

How many host addresses are available on the network 172.16.128.0 with a subnet mask of 255.255.252.0?

1022

What three blocks of addresses are defined by RFC 1918 for private network use? (Choose three.)

10.0.0.0/8 172.16.0.0/12

192.168.0.0/16

An administrator must send a message to everyone on the router A network. What is the broadcast address for network 172.16.16.0/22?

172.16.19.255

A site administrator has been told that a particular network at the site must accommodate 126 hosts. Which subnet mask would be used that contains the required number of host bits?

255.255.255.128

Considering the addresses already used (10.16.10.0/26 and 10.16.10.192/28) and having to remain within the 10.16.10.0/24 network range, which subnet address could be assigned to the network containing 25 hosts?

10.16.10.64/27

What is the usable number of host IP addresses on a network that has a /26 mask?

26

Which address prefix range is reserved for IPv4 multicast?

224.0.0.0 - 239.255.255.255

A high school in New York (school A) is using videoconferencing technology to establish student interactions with another high school (school B) in Russia. The videoconferencing is conducted between two end devices through the Internet. The network administrator of school A configures the end device with the IP address 209.165.201.10. The administrator sends a request for the IP address for the end device in school B and the response is 192.168.25.10. Neither school is using a VPN. The administrator knows immediately that this IP will not work. Why?

This is a private IP address

Which three addresses are valid public addresses? (Choose three.)

198.133.219.17*

192.168.1.245

10.15.250.5

128.107.12.117*

172.31.1.25

64.104.78.227*

A message is sent to all hosts on a remote network. Which type of message is it?

directed broadcast

A company has a network address of 192.168.1.64 with a subnet mask of 255.255.255.192. The company wants to create two subnetworks that would contain 10 hosts and 18 hosts respectively. Which two networks would achieve that? (Choose two.)

192.168.1.16/28

192.168.1.64/27*

192.168.1.128/27

192.168.1.96/28*

192.168.1.192/28

Which address is a valid IPv6 link-local unicast address?

FEC8:1::FFFF

FD80::1:1234

FE80::1:4545:6578:ABC1*

FE0A::100:7788:998

FFC90:5678:4251:FFFF

Which of these addresses is the shortest abbreviation for the IP address:3FFE:1044:0000:0000:00AB:0000:0000:0057?

3FFE:1044:0:0:AB::57

A network administrator has received the IPv6 prefix 2001:DB8::/48 for subnetting. Assuming the administrator does not subnet into the interface ID portion of the address space, how many subnets can the administrator create from the /48 prefix?

65536

Given IPv6 address prefix 2001:db8::/48, what will be the last subnet that is created if the subnet prefix is changed to /52?

2001:db8:0:f000::/52

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

/60 All the addresses have the part 2001:0DB8:BC15:00A in common. Each number or letter in the address represents 4 bits, so the prefix-length is /60.

What type of IPv6 address is FE80::1?

loopback

linklocal*

multicast

global unicast

2001:db8:1234:xxxy::/64 where y represents the subnet portion, how many subnets?

16, Because only one hexadecimal character is used to represent the subnet, that one character can represent 16 different values 0 through F.

What is used in the EUI-64 process to create an IPv6 interface ID on an IPv6 enabled interface?

the MAC address of the IPv6 enabled interface

What is the prefix for the host address 2001:DB8:BC15:A:12AB::1/64?

2001:DB8:BC15:A

An IPv6 enabled device sends a data packet with the destination address of FF02::1. What is the target of this packet?​

all IPv6 enabled devices on the local link​ or network

2001:DB8::BAF:3F57:FE94

global unicast

ff02::1

All-nodes multicast address.

::1

loopback

ff02::1:ffae:f85f

solicited node multicast

Which IPv6 prefix is reserved for communication between devices on the same link?

fe80::/10

Which type of IPv6 address refers to any unicast address that is assigned to multiple hosts?

anycast

What are two types of IPv6 unicast addresses? (Choose two.)

multicast

loopback*

link-local*

anycast

broadcast

Which service provides dynamic global IPv6 addressing to end devices without using a server that keeps a record of available IPv6 addresses?

SLAAC

Which protocol supports Stateless Address Autoconfiguration (SLAAC) for dynamic assignment of IPv6 addresses to a host?

ICMPv6

Translation, one of three methods that allow IPv6 and IPv4 to coexist

IPv6 packets are converted to IPv4 packets and vice versa.

Tunneling, one of three methods that allow IPv6 and IPv4 to coexist

The IPv6 packet is transported inside and IPv4 packet.

Dual-Stack, one of three methods that allow IPv6 and IPv4 to coexist

The IPv4 packets and IPv6 packets coexist in the same network.

A technician uses the ping 127.0.0.1 command. What is the technician testing?

the TCP/IP stack on a network host

PC1 192.168.1.1 running tracert to 10.1.0.2 has last valid IP address of 192.168.1.254. Which device?

R1, the default gateway for that LAN.

Which protocol is used by the traceroute command to send and receive echo-requests and echo-replies?

ICMP

Which ICMPv6 message is sent when the IPv6 hop limit field of a packet is decremented to zero and the packet cannot be forwarded?

time exceeded

A user executes a traceroute over IPv6. At what point would a router in the path to the destination device drop the packet?

when the value of the Hop Limit field reaches zero

What is the purpose of ICMP messages?

to provide feedback of IP packet transmissions

What source IP address does a router use by default when the traceroute command is issued?

the IP address of the outbound interface

127.0.0.1 type of address?

looback address

172.19.20.5 type of address?

private address

240.2.6.255 type of address?

experimental address

192.0.2.123 type of address?

TEST-NET address

169.254.1.5 type of address?

link-local address

IPv4 link-local address block

169.254.0.0/16

IPv4 private address ranges

10.0.0.0/8, 172.16.0.0/12, and

192.168.0.0/16

IPv4 TEST-NET address range

192.0.2.0/24

IPv4 experimental address range

240.0.0.0 to 255.255.255.254

A user issues a ping 192.135.250.103 command and receives a response that includes a code of 1. What does this code represent?

host unreachable

Which subnet would include the address 192.168.1.96 as a usable host address?

192.168.1.64/26

A host is transmitting a broadcast. Which host or hosts will receive it?

all hosts in the same subnet

A host is transmitting a unicast. Which host or hosts will receive it?

one specific host

A user issues a ping 2001:db8:FACE:39::10 command and receives a response that includes a code of 3. What does this code represent?

address unreachable

A host is transmitting a multicast. Which host or hosts will receive it?

a specially defined group of hosts

A host is transmitting a multicast. Which host or hosts will receive it?

a specially defined group of hosts

Which is the compressed format of the IPv6 address 2001:0db8:0000:0000:0000:a0b0:0008:0001?

2001:db8::a0b0:8:1

Which is the compressed format of the IPv6 address fe80:09ea:0000:2200:0000:0000:0fe0:0290?

fe80:9ea:0:2200::fe0:290

Which is the compressed format of the IPv6 address 2002:0042:0010:c400:0000:0000:0000:0909?

2002:42:10:c400::909

Which is the compressed format of the IPv6 address 2001:0db8:0000:0000:0ab8:0001:0000:1000?

2001:db8::ab8:1:0:1000

Which is the compressed format of the IPv6 address 2002:0420:00c4:1008:0025:0190:0000:0990?

2002:420:c4:1008:25:190::990

Which is the compressed format of the IPv6 address fe80:0000:0000:0000:0220:0b3f:f0e0:0029?

fe80::220:b3f:f0e0:29

A user issues a ping 2001:db8:FACE:39::10 command and receives a response that includes a code of 2 . What does this code represent?

beyond scope of the source address

A user issues a ping fe80:65ab:dcc1::100 command and receives a response that includes a code of 3. What does this code represent?

address unreachable

A user issues a ping 10.10.14.67 command and receives a response that includes a code of 0. What does this code represent?

network unreachable

A user issues a ping fe80:65ab:dcc1::100 command and receives a response that includes a code of 4. What does this code represent?

port unreachable

A user issues a ping 198.133.219.8 command and receives a response that includes a code of 0. What does this code represent?

network unreachable

A user issues a ping 2001:db8:3040:114::88 command and receives a response that includes a code of 4. What does this code represent?

port unreachable

A user issues a ping 2001:db8:FACE:39::10 command and receives a response that includes a code of 2. What does this code represent?

beyond scope of the source address

What subnet mask is represented by the slash notation /20?

255.255.240.0

Which statement is true about variable-length subnet masking?

The size of each subnet may be different, depending on requirements.

Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?

to identify the network address of the destination network

How many usable IP addresses are available on the 192.168.1.0/27 network?

30

Which subnet mask would be used if exactly 4 host bits are available?

255.255.255.240

Which two parts are components of an IPv4 address? (Choose two.)

network and host portions

If a network device has a mask of /26, how many IP addresses are available for hosts on this network?

62

What does the IP address 172.17.4.250/24 represent?

host address

If a network device has a mask of /28, how many IP addresses are available for hosts on this network?

14

What is the purpose of the subnet mask in conjunction with an IP address?

to determine the subnet to which the host belongs

A network administrator is variably subnetting a network. The smallest subnet has a mask of 255.255.255.224. How many usable host addresses will this subnet provide?​

30

What is indicated by a successful ping to the ::1 IPv6 address?

IP is properly installed on the host.

What is the most compressed representation of the IPv6 address 2001:0000:0000:abcd:0000:0000:0000:0001?

2001:0:0:abcd::1

What is the purpose of the command ping ::1?

At a minimum, which address is required on IPv6-enabled interfaces?

link-local

What is the interface ID of the IPv6 address 2001:DB8::1000:A9CD:47FF:FE57:FE94/64?

A9CD:47FF:FE57:FE94

What are three parts of an IPv6 global unicast address? (Choose three.)

1) a global routing prefix that is used to identify the network portion of the address that has been provided by an ISP*

2) a subnet ID that is used to identify networks inside of the local enterprise site

3) an interface ID that is used to identify the local host on the network

What is the valid most compressed format possible of the IPv6 address 2001:0DB8:0000:AB00:0000:0000:0000:1234?

2001:DB8:0:AB00::1234

What is the prefix associated with the IPv6 address 2001:CA48:D15:EA:CC44::1/64?

2001:CA48:D15:EA::/64

What type of address is automatically assigned to an interface when IPv6 is enabled on that interface?

link-local

Which IPv6 network prefix is only intended for local links and can not be routed?

FE80::/10

Your organization is issued the IPv6 prefix of 2001:0000:130F::/48 by your service provider. With this prefix, how many bits are available for your organization to create subnetworks if interface ID bits are not borrowed?

16

What is the subnet address for the IPv6 address 2001:D12:AA04:B5::1/64?

2001:D12:AA04:B5::/64​

Which type of IPv6 address is not routable and used only for communication on a single subnet?

link-local address