Understanding IPv4 Addressing and Subnetting

What is the default subnet mask for a Class C IPv4 address?

• 255.0.0.0

• 255.255.0.0

• 255.255.255.0

• 255.255.255.255

How many bits are there in an IPv4 address?

• 16

• 32

• 64

• 128

Which of the following is a valid IPv4 address?

• 192.168.1.256

• 172.16.300.1

• 10.0.0.1

• 256.100.50.25

What is the purpose of subnetting in IPv4 addressing?

• To increase the number of available IP addresses

• To divide a network into smaller, more manageable pieces

• To convert IPv4 addresses to IPv6

• To encrypt data packets

Calculate the number of possible hosts in a subnet with a subnet mask of 255.255.255.192.

• 62

• 64

• 126

• 128

Which of the following is the broadcast address for the subnet 192.168.1.0/24?

• 192.168.1.0

• 192.168.1.1

• 192.168.1.255

• 192.168.1.254

What is the network address for the IP 192.168.10.15 with a subnet mask of 255.255.255.0?

• 192.168.10.0

• 192.168.10.1

• 192.168.10.15

• 192.168.10.255

Convert the binary number 11000000.10101000.00000001.00000001 to decimal.

• 192.168.1.1

• 192.168.0.1

• 192.168.1.0

• 192.168.0.0

What is the CIDR notation for a subnet mask of 255.255.255.224?

• /24

• /25

• /26

• /27

Which class of IP addresses is used for multicast?

• Class A

• Class B

• Class C

• Class D