Ip addressing and subnetting questions and answers pdf

1. How do you calculate subnet mask and IP address?
2. What is the subnet mask address for 172.16 5.10 28?
3. How many IP addresses does 255.255 255.0 have?
4. What does a 255.255 255.255 subnet mean?
5. How many subnets are in an IP?
6. What class is a 255.255 255.0 subnet?
7. Is 172 public or private IP?
8. What is the subnet mask of 172.31 0.0 16?
9. What is the smallest subnet?
10. Is there a 0 subnet?
11. What is the best subnet mask?
12. What is a 0 24 subnet?
13. How many subnets can a 48 site?
14. Is 255.0 0.0 a valid IP address?
15. Is 0.0 0.0 a valid subnet mask?
16. What are the 3 major classes of an IP network?
17. What is the formula for calculating subnets?
18. Is DNS same as gateway?
19. How do I find my primary DNS?
20. How to create subnet?
21. How many hosts can 255.255 255.224 have?
22. How many subnets does 255.255 255.192 have?
23. What is the best subnet mask?
24. What are the 5 IP addresses?
25. What is the last IP of a subnet?
26. What are the 3 IP addresses?

How do you calculate subnet mask and IP address?

To calculate the IP Address Subnet you need to perform a bit-wise AND operation (1+1=1, 1+0 or 0+1 =0, 0+0=0) on the host IP address and subnet mask. The result is the subnet address in which the host is situated.

What is the subnet mask address for 172.16 5.10 28?

4. What is the full subnet mask for address 172.16. 5.10/28? 255.255.

How many IP addresses does 255.255 255.0 have?

A subnet mask of 255.255. 255.0 would give you lots of networks (2 ¹⁶) and 254 hosts.

What does a 255.255 255.255 subnet mean?

A network with a subnet mask of 255.255. 255.255 puts each device inside its own subnet, forcing them to communicate with the router before communicating with any other device.

How many subnets are in an IP?

Using Subnets to Organize and Optimize Your Network

Each IP address block can create 254 IP addresses, which allows 254 x 4 total IP addresses to be created for use in the network.

What class is a 255.255 255.0 subnet?

Class C networks use a default subnet mask of 255.255.255.0 and have 192-223 as their first octet. The address 192.168.123.132 is a class C address.

Is 172 public or private IP?

192.168.

Note that only a portion of the “172” and the “192” address ranges are designated for private use. The remaining addresses are considered “public,” and thus are routable on the global Internet.

What is the subnet mask of 172.31 0.0 16?

From the 172.31. 0.0/16 CIDR block you can create 16 subnet blocks with /20 prefixes. Each subnet provides up to 4091 usable addresses (the first 4 and last 1 address are reserved). The subnet mask for a /20 prefix is 255.255.

What is the smallest subnet?

The minimum size of a subnet is a /28 (or 14 IP addresses.) for IPv4. Subnets cannot be larger than the VPC in which they are created.

Is there a 0 subnet?

When subnetting a network, the 0 subnet (the subnet whose subnet bits are all 0) is normally not allowed because of potential confusion between the subnet address and the network address. In practice, this confusion is rarely an issue. This command allows the router to use the all-zeros subnet.

What is the best subnet mask?

Considering that information, we know the most efficient subnet mask for the network is 255.255. 254.0. The valid host address range for each subnet must be written as two ranges, due to the limitations of writing the addresses as dotted quads.

What is a 0 24 subnet?

The /24 means that the routing prefix of the subnet is 24 bits long, which means there's ony 8 bits left for the subnet itself, i.e. 123.218.44.0 to 123.218.44.255.

How many subnets can a 48 site?

Large customers get a /48 prefix. That gives them 65,536 /64 subnets. Medium customers get a /56 prefix. That gives them 256 /64 subnets.

Is 255.0 0.0 a valid IP address?

0 or . 255 are not usable… in most cases! The reason for this is because we tend to allocate full Class C type addresses to our networks, making it obviously very simple for us to administer. A standard Class C network consists of 256 addresses (0 to 255 inclusive), of which one is the network address (.

Is 0.0 0.0 a valid subnet mask?

The net mask 0.0. 0.0 (in CIDR, /0 ) denotes "Every address to exist in all the universe" which is an invalid netmask for a specific IP range - you typically only see this with the IP address of 0.0.

What are the 3 major classes of an IP network?

Currently there are three classes of TCP/IP networks. Each class uses the 32-bit IP address space differently, providing more or fewer bits for the network part of the address. These classes are class A, class B, and class C.

What is the formula for calculating subnets?

To calculate the number of possible subnets, use the formula 2n, where n equals the number of host bits borrowed. For example, if three host bits are borrowed, then n=3. 23 = 8, so eight subnets are possible if three host bits are borrowed.

Is DNS same as gateway?

Domain Name Service (DNS) numbers are IP addresses that a workstation or server uses to refer to specific servers that resolve domain names to IP addresses. A gateway IP refers to a device on a network which sends local network traffic to other networks.

How do I find my primary DNS?

To see or edit the DNS settings on your Android phone or tablet, tap the "Settings" menu on your home screen. Tap "Wi-Fi" to access your network settings, then press and hold the network you want to configure and tap "Modify Network." Tap "Show Advanced Settings" if this option appears.

How to create subnet?

To create a subnet address, bits are taken from the local host portion. As the size of the subnet mask increases, the number of hosts decreases and the number of subnets increases. Figure 2-14 shows examples of IP network addresses, their relationship to the subnet mask, and the corresponding subnets.

How many hosts can 255.255 255.224 have?

A /27 (255.255. 255.224) is 3 bits on and 5 bits off. This provides 8 subnets, each with 30 hosts.

How many subnets does 255.255 255.192 have?

This adds up to 24 consecutive ones, or /24 (pronounced “slash twenty four”). A subnet mask of 255.255. 255.192 is 11111111.11111111. 11111111.11000000 in binary, or 26 ones, hence /26 .

What is the best subnet mask?

Considering that information, we know the most efficient subnet mask for the network is 255.255. 254.0. The valid host address range for each subnet must be written as two ranges, due to the limitations of writing the addresses as dotted quads.

What are the 5 IP addresses?

TCP/IP defines five classes of IP addresses: class A, B, C, D, and E. Each class has a range of valid IP addresses. The value of the first octet determines the class.

What is the last IP of a subnet?

The broadcast address is the last IP address within a subnet. You can calculate it by taking the network address (the 1st address within the subnet), adding the number of addresses in the subnet, and then subtracting one.

What are the 3 IP addresses?

An internet protocol (IP) address allows computers to send and receive information. There are four types of IP addresses: public, private, static, and dynamic.