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Zorluk: KolayIPv4 Addressing and Subnetting

A network administrator assigns the IPv4 prefix 192.168.10.0/29192.168.10.0/29 to a small network segment. Which of the following statements regarding this subnet are correct? (Select TWO)

  1. The subnet mask in dotted-decimal notation is 255.255.255.248.Cevap
  2. The network provides a total of 6 usable IP addresses for host devices.Cevap
  3. C
    The network provides a total of 8 usable IP addresses for host devices.
  4. D
    The broadcast address for this subnet segment is 192.168.10.8.

Cevap

The subnet mask is 255.255.255.248 and the network provides a total of 6 usable IP addresses for host devices.
For a /29 subnet, there are 3 host bits remaining (32−29=332 - 29 = 3). The subnet mask corresponds to 255.255.255.248. The total number of IP addresses in the block is 23=82^3 = 8. Subtracting the network identifier (192.168.10.0) and the broadcast address (192.168.10.7) leaves 6 usable IP addresses for hosts.

Adım Adım Çözüm

1
Calculate the subnet mask from CIDR notation /29.
The subnet mask has 29 network bits and 3 host bits. In dotted-decimal form, 255.255.255.248.
Converting /29 to binary gives 11111111.11111111.11111111.11111000, which equals 255.255.255.248.
2
Calculate total IP addresses and usable host addresses.
Total addresses = 23=82^3 = 8. Usable host addresses = 8−2=68 - 2 = 6.
The network ID (192.168.10.0) and broadcast address (192.168.10.7) cannot be assigned to hosts.

Anahtar Kavram

IPv4 Subnetting and Usable Host Calculation
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Konular

IPv4 Addressing and Subnetting

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