Podcast
Questions and Answers
Which of the following is the primary purpose of subnetting?
Which of the following is the primary purpose of subnetting?
- To reduce the number of network devices that are able to communicate with each other
- To increase the physical distance between network devices
- To eliminate the need for IP addresses
- To divide a larger network into smaller, more manageable subnetworks (correct)
In subnetting, the 'node portion' of an address can consist of all binary 0s or all binary 1s.
In subnetting, the 'node portion' of an address can consist of all binary 0s or all binary 1s.
False (B)
What is the result of the ANDing process between an IP address and its subnet mask?
What is the result of the ANDing process between an IP address and its subnet mask?
network ID
The process of dividing a large network into smaller subnetworks is known as ______.
The process of dividing a large network into smaller subnetworks is known as ______.
What does 192.168.0.255 represent in a 192.168.0.0/24 network?
What does 192.168.0.255 represent in a 192.168.0.0/24 network?
Adding more network bits in subnetting increases the number of available nodes per subnet.
Adding more network bits in subnetting increases the number of available nodes per subnet.
What is the default subnet mask for a Class C private IP address?
What is the default subnet mask for a Class C private IP address?
If you add two bits to the node portion of a network, how many networks and nodes per network are created?
If you add two bits to the node portion of a network, how many networks and nodes per network are created?
In the context of IP addressing, the part of the address that identifies a specific device within a network is referred to as the ______.
In the context of IP addressing, the part of the address that identifies a specific device within a network is referred to as the ______.
Why is it important to isolate broadcast domains within a network using subnetting?
Why is it important to isolate broadcast domains within a network using subnetting?
What is the primary purpose of subnetting?
What is the primary purpose of subnetting?
In subnetting, all binary 0s or all binary 1s can be used for node addresses.
In subnetting, all binary 0s or all binary 1s can be used for node addresses.
Using the base network 192.168.0.0/24, what are the resulting number of networks and nodes if 5 bits from the last octet are borrowed for subnetting?
Using the base network 192.168.0.0/24, what are the resulting number of networks and nodes if 5 bits from the last octet are borrowed for subnetting?
Applying a subnet mask to an IP address through an ___________ operation reveals the Network ID.
Applying a subnet mask to an IP address through an ___________ operation reveals the Network ID.
For a Class C private IP address with a default subnet mask, what is the standard number of bits used for the network portion of the address?
For a Class C private IP address with a default subnet mask, what is the standard number of bits used for the network portion of the address?
Adding more network bits through subnetting increases the number of available nodes per subnet.
Adding more network bits through subnetting increases the number of available nodes per subnet.
If you start with a 192.168.0.0/24 network and need to create at least 10 subnets, what is the minimum number of bits you must borrow from the host portion?
If you start with a 192.168.0.0/24 network and need to create at least 10 subnets, what is the minimum number of bits you must borrow from the host portion?
Which statement accurately describes the node portion of an IP address?
Which statement accurately describes the node portion of an IP address?
The process of dividing a larger network into smaller networks to improve network management is called ___________.
The process of dividing a larger network into smaller networks to improve network management is called ___________.
Match the number of subnet bits added to a /24 network with the resulting number of networks:
Match the number of subnet bits added to a /24 network with the resulting number of networks:
Flashcards
What is subnetting?
What is subnetting?
Dividing a larger network into smaller subnetworks (subnets) to improve IP address utilization and isolate broadcast domains.
What is the ANDing process?
What is the ANDing process?
Process performed on an IP address with a subnet mask to find the network ID.
What is a Network ID?
What is a Network ID?
The address that identifies the specific network a device is connected to.
What is a Node ID?
What is a Node ID?
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What is the Network Broadcast Address?
What is the Network Broadcast Address?
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What can we determine with the Network ID?
What can we determine with the Network ID?
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Why can't the node portion be all binary 0's?
Why can't the node portion be all binary 0's?
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Why can't the node portion be all binary 1's?
Why can't the node portion be all binary 1's?
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Where do we start with subnetting?
Where do we start with subnetting?
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What happens when you divide a network into smaller subnets?
What happens when you divide a network into smaller subnets?
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What happens when you add bits to the node portion?
What happens when you add bits to the node portion?
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What is required when more nodes are required on a network?
What is required when more nodes are required on a network?
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Study Notes
Introduction to Subnetting
- Subnetting divides a larger network into subnetworks or subnets.
- The purpose of subnetting is to improve IP address utilization.
- Subnetting isolates broadcast domains within a network.
- Subnetting starts by examining IP addresses.
- Class C private IP addresses can be used as an example.
- A Class C private IP address has a default subnet mask of 24 bits or 255.255.255.0.
- The ANDing process with the subnet mask reveals the network ID (192.168.0.0) and the node ID (.10).
- Determining network and node IDs involves working backwards from the available information.
- The subnet mask along with a binary, can determine the first and last usable addresses and the network broadcast address.
- The node portion cannot be all binary 0's, because it is reserved for the Network ID.
- The node portion cannot be all binary 1's, because it is reserved for the network's broadcast address.
Dividing Networks into Smaller Subnets
- To divide a network into smaller subnets, bits from the last octet can be converted into network bits.
- Converting bits divides the network into more networks.
- Adding more network bits reduces the amount of available nodes.
- The more nodes required on a network, the greater the amount of node bits required.
- Adding 1 bit to the node portion results in 2 networks/126 nodes, remember minus the network ID and broadcast.
- Adding 2 bits results in 4 networks/62 nodes.
- Adding 3 bits results in 8 networks/30 nodes.
- Adding 4 bits results in 16 networks/14 nodes.
- Adding 5 bits results in 32 networks/6 nodes.
- Adding 6 bits results in 64 networks/2 nodes.
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