Module 9 - IPv4 and Network segmentation

Question 1

Which RFC defines the ranges of private IPv4 addresses?

Answer 1

RFC 1918

Question 2

What is the full range of private addresses for the 10.0.0.0/8 network?

Answer 2

10.0.0.0 to 10.255.255.255

Question 2

What is the full private address range for 172.16.0.0/12?

Answer 2

172.16.0.0 - 172.31.255.255

Question 3

What is the full private address range for 192.168.0.0/16?

Answer 3

192.168.0.0 to 192.168.255.255

Question 4

Which technology is used to convert a private IP address to a public one for internet access?

Answer 4

NAT (Network Address Translation)

Question 4

Which IPv4 address range is used for link-local addressing or APIPA in Windows?

Answer 4

169.254.0.1 to 169.254.255.254

Question 5

Which IPv4 address range is reserved for loopback testing?

Answer 5

127.0.0.1 to 127.255.255.254

Question 6

What command is commonly used to test the loopback address?

Answer 6

ping

Question 7

When does a Windows device use a link-local address?

Answer 7

When it cannot obtain an IP address through other means

Question 8

Which RFC introduced classful addressing in 1981?

Answer 8

RFC 790

Question 9

What address range does a Class A network cover?

Answer 9

0.0.0.0/8 to 127.0.0.0/8

Question 10

How many host addresses are supported per Class A network?

Answer 10

More than 16 million host addresses

Question 11

What is the fixed prefix length for Class A networks?

Answer 11

/8

Question 12

What address range does a Class B network cover?

Answer 12

128.0.0.0/16 to 191.255.0.0/16

Question 13

How many host addresses are supported per Class B network?

Answer 13

Approximately 65 000 hosts

Question 14

What is the fixed prefix length for Class B networks?

Answer 14

/16

Question 15

What address range does a Class C network cover?

Answer 15

192.0.0.0/24 to 223.255.255.0/24

Question 16

How many host addresses are supported per Class C network?

Answer 16

254 Hosts

Question 17

What is the fixed prefix length for Class C networks?

Answer 17

/24

Question 18

Which class range is reserved for multicast traffic?

Answer 18

Class D, 224.0.0.0 to 239.255.255.255

Question 18

Which class range is reserved for experimental use?

Answer 18

Class E, 240.0.0.0 to 255.255.255.255

Question 19

Which organization manages both IPv4 and IPv6 global address allocations?

Answer 19

IANA (Internet Assigned Numbers Authority)

Question 20

Which RIR is responsible for IP address allocation in Africa?

Answer 20

AfriNIC (African Network information center)

Question 20

Which RIR (regional internet registry) is responsible for IP address allocation in Europe, the Middle East, and Central Asia?

Answer 20

RIPE NCC (** IP European network coordination center)

Question 21

Which RIR is responsible for IP address allocation in North America?

Answer 21

ARIN (American registry for internet numbers)

Question 21

Which RIR is responsible for IP address allocation in the Asia/Pacific region?

Answer 21

APNIC (Asia Pacific network information center)

Question 22

Which devices do not forward Ethernet broadcasts across interfaces, segmenting broadcast domains?

Answer 22

Routers

Question 23

Which RIR is responsible for IP address allocation in Latin America and some Caribbean islands?

Answer 23

LACNIC (Latin America and Caribbean IP address registry)

Question 24

Which protocol sends a broadcast to discover the MAC address associated with a known IPv4 address?

Answer 24

ARP (Address resolution protocol)

Question 25

Which devices propagate Ethernet broadcasts out all interfaces except the one on which they were received?

Answer 25

Ethernet switches

Question 26

What happens when a router receives a broadcast?

Answer 26

It drops the broadcast

Question 26

Which broadcast is used by hosts to locate a DHCP server during IP configuration?

Answer 26

A DHCP Discover message

Question 26

What term describes a group of devices that receive each other's Ethernet broadcasts?

Answer 26

A Layer 2 broadcast domain

Question 27

What part of an IP address is adjusted during subnetting?

Answer 27

Host bits

Question 28

What is the solution to the problems caused by large broadcast domains?

Answer 28

Subnetting the network into smaller broadcast domains

Question 28

What are three common methods of organizing subnets?

Answer 28

Grouping by location, function, or device type

Question 29

What is A logical area where all devices can receive broadcast frames from each other?

Answer 29

A broadcast domain

Question 29

What is The process of dividing a large network into smaller, more manageable sub-networks?

Answer 29

Subnetting