IP Addresses
What is the CIDR (/) notation for the subnet mask 255.192.0.0 ? Please include the / in your answer.
/10
What is the CIDR / notation (prefix lemgth) for a subnet mask that is given as 255.255.0.0 ? Please include the / in your answer.
/16
What is the CIDR / notation (prefix length) for a net mask given as 255.255.248.0 ? Please include the / in your answer.
/21
what is the prefix length notation for the subnet mask 255.255.255.224?
/27
What is the CIDR / notation (prefix length) for a subnet mask that is given as 255.255.255.240 ? Please include the / in your answer.
/28
What is the CIDR (/) notation for the subnet mask 255.255.255.252 ? Please include the / in your answer.
/30
A network administrator is variably subnetting a given block of IPv4 addresses. Which combination of network addresses and prefix lengths will make the most efficient use of addresses when the need is for 2 subnets capable of supporting 10 hosts and 1 subnet that can support 6 hosts?
10.1.1.128/28 10.1.1.144/28 10.1.1.160/29
The last host address on the 10.15.25.0/24 network is
10.15.25.254
What is the binary representation of 0xCA?
11001010
What is the broadcast address for IP address 172.16.0.0 /16 ?
172.16.255.255
Which of the IPv4 addresses represent a valid host address?
172.16.4.155 /26
What is the broadcast address for the network 172.16.32.0 /19
172.16.63.255
Which subnet would include the address 192.168.1.96 as a usable host address?
192.168.1.64/26
What is the last valid IP address for the network 192.168.10.0/27 ?
192.168.10.30
Given the IP address 192.168.55.73 and subnet mask 255.255.255.192 what is the first valid IP address on this network?
192.168.55.65
Which three addresses are valid public addresses? (Choose three.)
198.133.219.17 128.107.12.117 64.104.78.227
What is the dotted decimal representation of the IPv4 address 11001011.00000000.01110001.11010011?
203.0.113.211
What is the network mask (subnet mask) for an IP address that has a CIDR prefix of /12 ?
255.240.0.0
What is the network mask (subnet mask) for an IP address that has a CIDR prefix of /18 ?
255.255.192.0
Incorrect What is the network mask (subnet mask) for an IP address that has a CIDR prefix of /22
255.255.252.0
A site administrator has been told that a particular network at the site must accommodate 126 hosts. Which subnet mask would be used that contains the required number of host bits?
255.255.255.128
What subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted?
255.255.255.192
A network engineer is subnetting the 10.0.240.0/20 network into smaller subnets. Each new subnet will contain between a minimum of 20 hosts and a maximum of 30 hosts. Which subnet mask will meet these requirements?
255.255.255.224
A network administrator wants to have the same subnet mask for three subnetworks at a small site. The site has the following networks and numbers of devices: Subnetwork A: IP phones - 10 addresses Subnetwork B: PCs - 8 addresses Subnetwork C: Printers - 2 addresses What single subnet mask would be appropriate to use for the three subnetworks?
255.255.255.240
What is the network mask (subnet mask) for an IP address that has a CIDR prefix of /30 ?
255.255.255.252
How many usable IP addresses are available on the 192.168.1.0/27 network?
30
Network Administrator subnets the 192.168.10.0/24 network into subnets with /26 masks. How many equal-sized subnets are created?
4
Converting 00110011 to decimal results in what decimal number?
51
How many hosts are addressable on a network that has a mask of 255.255.255.248?
6
What is the decimal equivalent of the hexidecimal value of 3F?
63
Match each description with an appropriate IP address
A Link-Local Address - 169.254.1.5 A public address - 198.133.219.2 An Experimental Address - 240.2.6.255 A loopback address - 127.0.0.1
An administrator wants to create four subnetworks from the network address 192.168.1.0/24. What is the network address and subnet mask of the second useable subnet?
subnet mask 255.255.255.192
