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Aptitude
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Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Take Free Test
Subnetting Questions
Subnet reasoning — interpret 10.16.3.65/23 and choose the correct statements Given host IP 10.16.3.65/23, evaluate the following statements about its subnet address, lowest/last host, and broadcast address, and select the two true statements.
VLSM practice — /28 subnets in 192.168.10.0/28 with zero subnet disallowed If you require the
eighth
usable /28 subnet (zero subnet not considered valid) in 192.168.10.0/28 and must assign the last usable IP to interface E0, which exact host address should you configure?
CIDR capacity — how many subnets and hosts does 172.16.0.0/19 provide? For the private Class B network 172.16.0.0 with a /19 mask, determine the number of subnets created and the number of usable hosts per subnet.
Apply /23 logic — valid hosts on 172.16.2.1/23 LAN A router interface E0 is 172.16.2.1/23 (mask 255.255.254.0). Which of the following are valid host addresses on that same LAN segment? Consider: 1) 172.16.1.100 2) 172.16.1.198 3) 172.16.2.255 4) 172.16.3.0.
Host capacity on a /29 LAN — include the router interface in the count A router interface is configured 192.168.192.10/29. Counting all usable IPs on that LAN, including the router interface itself, how many hosts can be addressed on this /29 segment?
Local IP stack test — choose the correct loopback address to ping To verify the TCP/IP stack on your own machine (without hitting the network), which IP address should you ping as the standard IPv4 loopback target?
IPv4 subnetting practice: What is the subnetwork (network) address for a host with IP address 200.10.5.68/28?
Subnet mask to host capacity: With subnet mask 255.255.255.224, what is the maximum number of IP host addresses available on a single subnet?
Design goal: 5 subnets, each needing at least 16 hosts. Which classful subnet mask should be used to satisfy these requirements?
Cisco IOS requirement: To allow the use of all 8 subnets with a Class C mask of 255.255.255.224 (/27), which configuration command must be enabled?
Find the network: What is the subnetwork number for host 172.16.66.0/21?
Valid host check for /22: Given subnet 172.16.17.0/22, which of the following is a valid host address (with mask shown)?
Broadcast address determination: An interface has IP 192.168.192.10/29. What broadcast address will hosts on this LAN use?
Choose a valid server IP: Subnet is 192.168.19.24/29. The router uses the first available host address. Which IP/mask should you assign to the server on this subnet?
Identify the subnet: An Ethernet port has IP 172.16.112.1/25. What is the valid subnet (network) address for this host?
Planning for 29 subnets: To create at least 29 subnets while maximizing host addresses per subnet, how many bits must be borrowed from the host field?
VLSM design for point-to-point WAN links On a Variable Length Subnet Mask (VLSM) IPv4 network, which subnet mask should be assigned to point-to-point serial WAN links to minimize wasted host addresses while remaining standards-compliant?
Choosing the last usable IP in the first valid /28 subnet Given network 192.168.10.0/28, the zero subnet is not considered valid. Using the first valid /28 subnet, what should be the IP address of interface S0 if you must use the last available host address in that range?
Identify the /30 subnetwork A host has IPv4 address 172.16.45.14/30. Which subnetwork does this host belong to when using a /30 mask on that class B private range?
Directly connecting two Ethernet hosts Two PCs are cabled back-to-back via their Ethernet NICs using a straight-through patch cord. Pings fail. Which actions will restore connectivity in this simple host-to-host scenario?