Subnetting Flashcards

1
Q

Which subnet mask will place all hosts on Network B in the same subnet with the least amount of wasted addresses?

A

255.255.254.0

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2
Q

All of the routers in the network are configured with the ip subnet-zero command. Which network addresses should be used for Link A and Network A? (Choose two)

A
  1. Network A – 172.16.3.128/25
  2. Link A – 172.16.3.0/30
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3
Q

You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the maximum number of subnets. Which network address and subnet mask meet this requirement?

A

192.168.252.8 255.255.255.248

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4
Q

Which subnet mask would be appropriate for a network address range to be subnetted for up to eight LANs, with each LAN containing 5 to 26 hosts?

A

255.255.255.224

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5
Q

An administrator must assign static IP addresses to the servers in a network. For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP properties box for the sales server?

A

IP address: 192.168.20.30
Subnet Mask: 255.255.255.248
Default Gateway: 192.168.20.25

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6
Q

In this VLSM addressing scheme, what summary address would be sent from router A?

A

172.16.0.0/16

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7
Q

You are working in a data center environment and are assigned the address range 10.188.31.0/23. You are asked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hosts each.Which IP address range meets these requirements?

A

10.188.31.0/27

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8
Q

Which two benefits are provided by using a hierarchical addressing network addressing scheme? (Choose two)

A
  1. reduces routing table entries
  2. ease of management and troubleshooting
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9
Q

The network administrator is asked to configure 113 point-to-point links. Which IP addressing scheme best defines the address range and subnet mask that meet the requirement and waste the fewest subnet and host addresses?

A

10.10.0.0/23 subnetted with mask 255.255.255.252

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10
Q

Given an IP address 172.16.28.252 with a subnet mask of 255.255.240.0, what is the correct network address?

A

172.16.16.0

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11
Q

A new subnet with 60 hosts has been added to the network. Which subnet address should this network use to provide enough usable addresses while wasting the fewest addresses?

A

192.168.1.64/26

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12
Q

The Lakeside Company has the internetwork in the exhibit. The Administrator would like to reduce the size of the routing table to the Central Router. Which partial routing table entry in the Central router represents a route summary that represents the LANs in Phoenix but no additional subnets?

A

10.0.0.0 /22 is subnetted, 1 subnet
D 10.4.0.0 [90/20514560] via 10.2.0.2 6w0d, serial 0/1

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13
Q

What is the most appropriate summarization for these routes?

A

10.0.0.0/22

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14
Q

A national retail chain needs to design an IP addressing scheme to support a nationwide network. The company needs a minimum of 300 sub-networks and a maximum of 50 host addresses per subnet. Working with only one Class B address, which of the following subnet masks will support an appropriate addressing scheme? (Choose two)

A
  1. 255.255.255.128
  2. 255.255.255.192
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15
Q

Which address range efficiently summarizes the routing table of the addresses for router main?

A

172.16.0.0/20

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16
Q

All hosts have connectivity with one another. Which statements describe the addressing scheme that is in use in the network? (Choose three)

A
  1. The subnet mask in use is 255.255.255.128.
  2. The IP address 172.16.1.25 can be assigned to hosts in VLAN1
  3. The LAN interface of the router is configured with multiple IP addresses.
17
Q

The network administrator needs to address seven LANs. RIP version 1 is the only routing protocol in use on the network and subnet 0 is not being used. What is the maximum number of usable IP addresses that can be supported on each LAN if the organization is using one class C address block?

A

30

18
Q

What is the most efficient summarization that R1 can use to advertise its networks to R2?

A

172.1.4.0/22

19
Q

Which address and mask combination a summary of the routes learned by EIGRP?

A

192.168.25.16 255.255.255.240