Chapter 11 Comprehensive Questions

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

/27

Host-A has the IPv4 address and subnet mask 10.5.4.100 255.255.255.0. Which of the following IPv4 addresses would be on the same network as Host-A? (Choose all that apply)

1) 10.5.4.1 2) 10.5.4.99

Host-A has the IPv4 address and subnet mask 172.16.4.100 255.255.0.0. Which of the following IPv4 addresses would be on the same network as Host-A? (Choose all that apply)

1) 172.16.4.99 2) 172.16.0.1

Host-A has the IPv4 address and subnet mask 192.168.1.50 255.255.255.0. Which of the following IPv4 addresses would be on the same network as Host-A? (Choose all that apply)

1) 192.168.1.1 2) 192.168.1.100

Which two statements are correct about private IPv4 addresses? (Choose two.)

1) Private IPv4 addresses are assigned to devices within an organization's intranet (internal network). 2) Any organization (home, school, office, company) can use the 10.0.0.0/8 address.

Which two statements are correct about public IPv4 addresses? (Choose two.)

1) To access a device over the internet, the destination IPv4 address must be a public address. 2) Public IPv4 address exhaustion is a reason why there are private IPv4 addresses and why organizations are transitioning to IPv6.

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

1) host portion 2) network portion

Which two situations are the result of excessive broadcast traffic? (Choose two)

1) slow network operations 2) slow device operations

Host-A has the IPv4 address and subnet mask 10.5.4.100 255.255.255.0. What is the network address of Host-A?

10.5.4.0

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

14

Host-A has the IPv4 address and subnet mask 172.16.4.100 255.255.0.0. What is the network address of Host-A?

172.16.0.0

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

255.255.240.0

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

255.255.255.224

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

255.255.255.240

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

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

30

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

4

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

62

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

62

Which organization or group of organizations receives IP addresses from IANA and is responsible for allocating these addresses to ISPs and some organizations?

RIRs

Which statement is true about variable-length subnet masking?

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

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

To determine the subnet to which the host belongs

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.

What does the IP address 172.17.4.250/24 represent?

host address

Which devices will not forward an IPv4 broadcast packet by default?

router