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The first and last IP address on each network.

e.g. In a classful class C network, the IP addresses x.x.x.0 and x.x.x.255 are invalid and cannot be assigned to a network interface card.

x.x.x.0 is the network address for the subnet.

x.x.x.255 is the network broadcast address for the subnet.

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Q: What are two invalid IP addresses on each subnet?
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What is the maximum number of subnets in class A using this mask of 255.255.192.0?

Ok good question To subnet any network requires borrowing host addresses The 255.255.192.0 regardless of class says host addresses start at CIDR (Classless Inter Domain Routing Protocol) /18. So if we borrow every available host address space then we have 2^14 = 16,384 possible subnet addresses available, NOT. In reality we have 11111111.11111111.11000000.00000000 or a /18 network. Every network / subnet requires two special reserved addresses. The network or zero address, and the last address in the range which will be assigned as the broadcast address. So we can't borrow all of the bits for sub netting. If we only leave one we will only have two addresses for the hosts, this won't work because we need to reserve two. We have to leave two so we will have 2^2 = 4. We can then give each subnet a network address and a broadcast address and still have 2 usable hosts' addresses. If we do this we only have 2^12 subnets = 4096. Each subnet will only have two usable host addresses and two reserved addresses. See the math confirms that 4096 * 4 = 16384 which is the total number of addresses in the address space we started with.


Which device would you use to connect two network segments with different subnet addresses?

A router


Can two Wifi devices communicate directly with each other via WLAN or do they need a router?

Yes, they can. You might want to assign IP addresses manually. They should be in the same subnet.


How many types of addresses in each network node?

there are two types of addresses: network addresses and physical addresses


A network on the internet has a subnet mask 255.255.240.0 what is the maximum number of hosts it can handle?

Convert the subnet mask to binary: 11111111.11111111.11110000.00000000The zeroes tell you which bytes indicate the host; in this case, 12 zeroes allow for 212 = 4096 different IP addresses within the subnet. Of these, two (the first and the last) are unusable for a host, so you have a maximum of 4094 hosts.


What is a subnet in computer networks?

A portion of a network that shares a common address component. On TCP/IP networks, subnets are defined as all devices whose IP addresses have the same prefix. For example, all devices with IP addresses that start with 100.100.100. would be part of the same subnet. Dividing a network into subnets is useful for both security and performance reasons. IP networks are divided using a subnet mask.


Ate these two computers on the same network IP192.167.222.4 Subnet255.255.555.0 Gateway192.168.222.1 and IP192.168.222.6 Subnet255.255.0.0 Gateway192.167.222.1?

For a start, two computers on the same network should have the same subnet mask. If two computers that are indeed on the same network have different subnet masks, there is a design problem. Now, even if you look only at the last subnet mask - the least restrictive one - the computers are NOT on the same subnet mask. The subnet mask 255.255.0.0 indicates that the first two bytes (or the first 16 bits) of an IP address have to match, to be considered part of the same network. If you look at the IP addresses, this is not the case.


How do you address to one party at two addresses?

Send two separate letters in separate envelopes, each with their respective addresses.


What is the default subnet mask for the IP address 176.43.52.18?

255.0.0.0 for a class A correct. but why? well, 10.10.0.0 is a class a network and all class "a" networks use a default subnet mask of 255.0.0.0. the range of class "a" networks is 1-126.


Why first and last subnet cannot be used?

because these two subnet are reserve


Maximum number of hosts class c Address?

254 - a class C subnet uses 8 bits for the hosts and 0 and 255 are reserved.


How do you connect two computers with Ethernet wire to play games by LAN?

If the computer both have LAN cards installed, you can simply use a crossover Cat5e/Cat6 network cable. Then set the IP addresses on each computer to be on the same subnet, e.g 192.168.1.1 and 192.168.1.2 with subnet mask 255.255.255.0. Alternatively, you can set this up using a hub or switch and two straight through cables, wireless, along with other methods. This is not necessary if you only have two computers, but it may be more convenient.