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Zorluk: ZorIP Addressing and Network Configuration

A technician is manually configuring a static IPv4 network interface on a enterprise server. The local router gateway interface connected to this segment is configured with the IP address 172.16.48.1172.16.48.1 and a subnet mask of 255.255.240.0255.255.240.0. The server must be capable of reaching hosts on remote IP subnets and resolving hostnames via an internal DNS server positioned at 172.16.48.2172.16.48.2. Which of the following network parameter configurations should the technician assign to this server?

  1. IP Address: 172.16.52.10, Subnet Mask: 255.255.240.0, Default Gateway: 172.16.48.1, Preferred DNS: 172.16.48.2Cevap
  2. B
    IP Address: 169.254.48.10, Subnet Mask: 255.255.0.0, Default Gateway: 172.16.48.1, Preferred DNS: 172.16.48.2
  3. C
    IP Address: 172.16.52.10, Subnet Mask: 255.255.240.0, Default Gateway: 172.16.48.2, Preferred DNS: 172.16.48.1
  4. D
    IP Address: 172.16.64.10, Subnet Mask: 255.255.240.0, Default Gateway: 172.16.48.1, Preferred DNS: 172.16.48.2

Cevap

IP Address: 172.16.52.10, Subnet Mask: 255.255.240.0, Default Gateway: 172.16.48.1, Preferred DNS: 172.16.48.2
The correct configuration assigns a host IP address of 172.16.52.10, which falls within the valid usable host range (172.16.48.1 through 172.16.63.254) defined by the subnet mask 255.255.240.0 (/20). Additionally, it correctly designates 172.16.48.1 as the default gateway interface for off-subnet routing and 172.16.48.2 as the preferred DNS server for hostname resolution.

Adım Adım Çözüm

1
Calculate the subnet boundaries for the given IP and mask.
A subnet mask of 255.255.240.0255.255.240.0 (/20 prefix) gives a block size of 16 in the third octet (256−240=16256 - 240 = 16). The subnet containing the gateway IP 172.16.48.1172.16.48.1 starts at 172.16.48.0172.16.48.0 and ends at 172.16.63.255172.16.63.255.
Determines the range of usable host IP addresses on this local network segment.
2
Determine valid host IP range.
Usable host IP address range is 172.16.48.1172.16.48.1 to 172.16.63.254172.16.63.254. The address 172.16.52.10172.16.52.10 falls within this range.
Host IP must be on the same logical subnet as the default gateway interface to communicate locally.
3
Verify service role IP assignments.
Default Gateway must be set to the router interface address (172.16.48.1172.16.48.1) for inter-subnet routing, and Preferred DNS must be set to the DNS server address (172.16.48.2172.16.48.2) for name resolution.
Ensures proper traffic forwarding to external networks and accurate domain name resolution.

Anahtar Kavram

IPv4 Subnet Masking and Default Gateway/DNS Configuration
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IP Addressing and Network Configuration

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