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Zorluk: OrtaIP Addressing Services

A network administrator is auditing the core network architecture to ensure proper service deployment across enterprise subnets. Match each IP addressing service or feature on the left with its corresponding operational role on the right.

  • Start of Authority (SOA) recordStores administrative information about a DNS zone, including the primary name server and zone refresh intervals.
  • IP Address Management (IPAM)Provides centralized tracking, planning, and monitoring of IP address space across DHCP and DNS infrastructure.
  • DHCP Option 82Appends switch port and VLAN metadata to client DHCP requests to enforce access policies at the relay agent.
  • Multicast DNS (mDNS)Resolves hostnames to IP addresses within small local-link networks without requiring a centralized DNS server.

Cevap

Start of Authority (SOA) record matches the zone administrative metadata description; IP Address Management (IPAM) matches centralized IP tracking and planning; DHCP Option 82 matches appending switch port and VLAN relay metadata; Multicast DNS (mDNS) matches local-link zero-configuration name resolution.
Each feature correctly corresponds to its primary function: the SOA record holds domain zone parameters and contact metadata; IPAM offers central IP address visibility; DHCP Option 82 enriches DHCP discovery packets with relay attachment metadata; and mDNS performs zero-configuration local-link name resolution.

Adım Adım Çözüm

1
Analyze the DNS Zone Administrative requirement.
Identify that the SOA record specifies authoritative zone data, serial numbers, and refresh timers.
SOA is the fundamental record defining zone parameters for DNS servers.
2
Identify the service for centralized network IP visibility.
Match IPAM to centralized IP address tracking and integration with DNS/DHCP servers.
IPAM consolidates subnet monitoring and address lifecycle management.
3
Evaluate the relay security and policy enforcement mechanism.
Match DHCP Option 82 to adding relay agent information (circuit ID/remote ID) to client requests.
Option 82 allows downstream DHCP servers to allocate leases or enforce security based on physical connection details.
4
Examine serverless name resolution for local links.
Match mDNS to resolving hostnames on local subnets without dedicated DNS infrastructure.
mDNS utilizes multicast packets on port 5353 for zero-configuration host discovery.

Anahtar Kavram

Core functions and operational roles of IP addressing, naming, and management services.
Tahmini Süre:1m 30s
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IP Addressing Services

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