A technician is configuring IPv4 address settings for workstations on the 192.168.10.0/26 … — CompTIA Network+

A technician is configuring IPv4 address settings for workstations on the $192.168.10.0/26$ subnet. Which of the following IP addresses are valid usable host addresses that can be assigned to devices on this subnet? (Select TWO.)

$192.168.10.15$ Answer
$192.168.10.50$ Answer
C
$192.168.10.0$
D
$192.168.10.63$
E
$192.168.10.64$

Answer

The valid usable host IP addresses are

192.168.10.15

and

192.168.10.50

For the subnet

192.168.10.0/26

, the block size is

64

addresses (

2^6

). The network address is

192.168.10.0

, and the broadcast address is

192.168.10.63

. Consequently, the assignable usable host address range spans from

192.168.10.1

192.168.10.62

. The addresses

192.168.10.15

and

192.168.10.50

fall directly within this range.

Step-by-Step Solution

Determine the total block size for a

/26

subnet prefix.

/26

subnet mask leaves

32 - 26 = 6

host bits, yielding a total block size of

2^6 = 64

addresses.

Identifying block size helps establish subnet boundaries.

Identify the network address, broadcast address, and usable host range.

Network address:

192.168.10.0

. Broadcast address:

192.168.10.63

. Usable host range:

192.168.10.1

through

192.168.10.62

Network and broadcast addresses must be subtracted from the total pool to find assignable addresses.

Evaluate each given IP address against the usable range.

192.168.10.15

and

192.168.10.50

reside between

192.168.10.1

and

192.168.10.62

, making them valid host addresses.

Only IP addresses within the usable boundaries can be assigned to endpoint interfaces.

Key Concept

Usable IPv4 Host Address Range Calculation

Question

Answer

Step-by-Step Solution

Key Concept

Common Mistakes

Topics

More questions from this topic