A network engineer is configuring a static IPv4 address for a server residing on a network… — Cisco CCNA

A network engineer is configuring a static IPv4 address for a server residing on a network segment assigned the network ID $172.24.16.0/22$ . Which IPv4 address represents a valid usable host address that can be assigned to this server?

$172.24.19.254$ Cevap
B
$172.24.19.255$
C
$172.24.20.1$
D
$172.32.16.5$

Cevap

172.24.19.254

is a valid usable host address within the

172.24.16.0/22

subnet.

The IP address

172.24.19.254

is the last valid usable host IP address in the

172.24.16.0/22

subnet range, which spans from

172.24.16.1

172.24.19.254

Adım Adım Çözüm

Determine the subnet mask and block size

A prefix of

/22

corresponds to a subnet mask of

255.255.252.0

. The block size in the third octet is

256 - 252 = 4

Calculating the block size identifies how the subnets increment across the third octet.

Identify the network boundary and next subnet

The network address is

172.24.16.0

. Adding the block size of

4

to the third octet gives the next subnet network address of

172.24.20.0

The next subnet boundary defines the upper limit of the current subnet.

Calculate the broadcast address and usable host range

The broadcast address is

172.24.19.255

(one IP before

172.24.20.0

). The usable host range spans from

172.24.16.1

through

172.24.19.254

Usable host addresses lie strictly between the network ID and the broadcast ID.

Anahtar Kavram

IPv4 Subnet Boundaries and Usable Host Identification

Soru

Cevap

Adım Adım Çözüm

Anahtar Kavram

Sık Yapılan Hatalar

Konular

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