Chapter 11: IPv4 Addressing
a. 30
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? a. 30 b. 6 c. 2 d. 14 e. 62
b. 4
A network administrator subnets the 192.168.10.0/24 network into subnets with /26 masks. How many equal-sized subnets are created? a. 64 b. 4 c. 1 d. 2 e. 16 f. 8
c. 10.5.4.0
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? a. 10.0.0.0 b. 10.5.0.0 c. 10.5.4.0 d. 10.5.4.100
a. 10.5.4.1 c. 10.5.4.99
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) a. 10.5.4.1 b. 10.5.0.1 c. 10.5.4.99 d. 10.0.0.98 e. 10.5.100.4
b. 172.16.0.0
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? a. 172.0.0.0 b. 172.16.0.0 c. 172.16.4.0 d. 172.16.4.100
a. 172.16.4.99 b. 172.16.0.1
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) a. 172.16.4.99 b. 172.16.0.1 c. 172.17.4.99 d. 172.17.4.1 e. 172.18.4.1
c. 192.168.1.1 d. 192.168.1.100
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) a. 192.168.0.1 b. 192.168.0.100 c. 192.168.1.1 d. 192.168.1.100 e. 192.168.2.1
a. 30
How many usable IP addresses are available on the 192.168.1.0/27 network? a. 30 b. 32 c. 62 d. 16 e. 254 f. 256
b. 62
How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask? a. 64 b. 62 c. 190 d. 254 192
e. 62
If a network device has a mask of /26, how many IP addresses are available for hosts on this network? a. 30 b. 16 c. 64 d. 32 e. 62 f. 14
d. 14
If a network device has a mask of /28, how many IP addresses are available for hosts on this network? a. 254 b. 32 c. 256 d. 14 e. 16 f. 62
d. host address
What does the IP address 172.17.4.250/24 represent? a. multicast address b. network address c. broadcast address d. host address
d. /27
What is the prefix length notation for the subnet mask 255.255.255.224? a. /28 b. /26 c. /25 d. /27
a. to determine the subnet to which the host belongs
What is the purpose of the subnet mask in conjunction with an IP address? a. to determine the subnet to which the host belongs b. to mask the IP address to outsiders c. to uniquely identify a host on a network d. to identify whether the address is public or private
c. 255.255.240.0
What subnet mask is represented by the slash notation /20? a. 255.255.255.0 b. 255.255.255.248 c. 255.255.240.0 d. 255.255.255.192 e. 255.255.224.0
b. router
Which devices will not forward an IPv4 broadcast packet by default? a. Ethernet switch b. router c. Windows PC d. None of the above. All devices forward IPv4 broadcast packets by default.
c. RIRs
Which organization or group of organizations receives IP addresses from IANA and is responsible for allocating these addresses to ISPs and some organizations? a. IETF b. IEEE c. RIRs d. Tier 1 ISPs
b. The size of each subnet may be different, depending on requirements.
Which statement is true about variable-length subnet masking? a. Bits are returned, rather than borrowed, to create additional subnets. b. The size of each subnet may be different, depending on requirements. c. Subnets may only be subnetted one additional time. d. Each subnet is the same size.
c. 255.255.255.224
Which subnet mask would be used if 5 host bits are available? a. 255.255.255.0 b. 255.255.255.240 c. 255.255.255.224 d. 255.255.255.128
c. 255.255.255.240
Which subnet mask would be used if exactly 4 host bits are available? a. 255.255.255.248 b. 255.255.255.224 c. 255.255.255.240 d. 255.255.255.128
e. network portion f. host portion
Which two parts are components of an IPv4 address? (Choose two.) a. physical portion b. broadcast portion c. subnet portion d. logical portion e. network portion f. host portion
a. slow network operations b. slow device operations
Which two situations are the result of excessive broadcast traffic? (Choose two) a. slow network operations b. slow device operations c. when devices on all adjacent networks are affected d. when the router has to forward an excessive number of packets
a. Private IPv4 addresses are assigned to devices within an organization's intranet (internal network). d. Any organization (home, school, office, company) can use the 10.0.0.0/8 address.
Which two statements are correct about private IPv4 addresses? (Choose two.) a. Private IPv4 addresses are assigned to devices within an organization's intranet (internal network). b. Internet routers will typically forward any packet with a destination address that is a private IPv4 address. c. 172.99.1.1 is a private IPv4 address. d. Any organization (home, school, office, company) can use the 10.0.0.0/8 address.
b. To access a device over the internet, the destination IPv4 address must be a public address. d. Public IPv4 address exhaustion is a reason why there are private IPv4 addresses and why organizations are transitioning to IPv6.
Which two statements are correct about public IPv4 addresses? (Choose two.) a. Public IPv4 addresses are allowed to be assigned to devices within an organization's intranet (internal network). b. To access a device over the internet, the destination IPv4 address must be a public address. c. 192.168.1.10 is a public IPv4 address. d. Public IPv4 address exhaustion is a reason why there are private IPv4 addresses and why organizations are transitioning to IPv6.
a. to identify the network address of the destination network
Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask? a. to identify the network address of the destination network b. to identify faulty frames c. to identify the host address of the destination host d. to identify the broadcast address of the destination network