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

• /25

• /26

• /27

• /28

• /29

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

• 254

• 190

• 192

• 62

• 64

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

• 255.255.255.0

• 255.255.255.128

• 255.255.255.224

• 255.255.255.240

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

• 1

• 2

• 4

• 8

• 16

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

• 255.255.255.248

• 255.255.224.0

• 255.255.240.0

• 255.255.255.0

• 255.255.255.192

Which statement is true about variable-length subnet masking?

• All the subnets are equally sized.

• The sizes of subnets may be different, depending on requirements.

• Subnets may only be subnetted one additional time.

• Bits are returned, rather than borrowed, to create additional subnets.

Why does a Layer 3 device perform the ANDing process on a destination IPv4 address and subnet mask?

• to identify the broadcast address of the destination network

• to identify the host address of the destination host

• to identify the host address of the destination host

• to identify the host address of the destination host

How many usable IPv4 addresses are available on the 192.168.1.0/27 network?

• 256

• 254

• 62

• 30

• 32

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

• 255.255.255.224

• 255.255.255.128

• 255.255.255.240

• 255.255.255.248

If a network device has a mask of /30, how many IPv4 addresses are available for hosts on this network?

• 64

• 8

• 2

• 32

• 16