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18 Cards in this Set
- Front
- Back
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What is flat network design? |
When all devices in the organisation were assigned an IP address with a matching network ID. |
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What is subnetting? |
The process of segmenting a network by dividing it into multiple smaller network spaces. |
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What is good about subnetting? |
It can reduce overall network traffic and improve network performance. |
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What dose an address plan include? |
The needs for each subnet in terms of: -Size -Number of hosts per subnet -How host addresses will be assigned -Which hosts require static IP addresses -Which hosts can use DHCP for obtaining their addressing information. |
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What are the private IP address ranges? |
-10.0.0.0 - 10.255.255.255 -172.16.0.0 - 172.31.255.255 -192.168.0.0 - 192.168.255.255 |
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What are two very important factors that will lead to the determination of which private address block is required? |
-The number of subnets required -The maximum number of hosts per subnet. |
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How are IPv4 subnets created? |
By using one or more of the host bits as network bits, this is done by extending the mask to borrow some of the bits from tje host portion of the address to create additional network bits. |
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What is common practice for assigning IP addresses to routers? |
To use the first or last available address in a network range for the router interface. |
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What are the guidelines for each of the subnets? |
-Network address = all 0s in host portion -First host address = All 0s plus 1 bit at the right in host portion. -Last host address = All 1s plus 0 bit at the right in the host portion. -Broadcast address = All 1 bits in the host portion. |
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What is the formula to calculate the number of subnets? |
2^n (n = number of bits borrowed from host portion) |
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What is the formula to calculate the number of hosts per network? |
2^n - 2 (n = number of bits remaining in the host portion) [Remember subtraction of 2 is to remove network and broadcast addresses.] |
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What must be remembered when creating subnets? |
You must remember to change the subnet mask to reflect the creation of more subnets. |
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What does the selection of a number of bits for the subnet ID affect? |
The number of possible subnets and the number of host addresses in each subnet. |
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What are three primary considerations when planning address allocation? |
-Preventing duplication of addresses -Providing and controlling access -Monitoring security and performance |
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What are the different devices that require addresses within a network? |
-End user clients -Servers and peripherals -Hosts -Intermediary devices -Gateway |
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For the network 192.168.1.0/24 state the ranges of addresses that would be allocated to different devices. |
-Host devices = .1 - .229 -Servers = .230 - .239 -Printers = .240 - .249 -Intermediary devices = .250 - .253 -Gateway = .254 |
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What is VLSM? |
Similar to traditional subnetting, but subnets are subnetted again. this can be repeated multiple times to create subnets of various sizes. |
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Why would IPv6 address space be subnetted? |
To support hierarchical structure/logical design. |
