A network technician is diagnosing several client host issues across a enterprise corporate network. Match each network diagnostic scenario on the left with the corresponding IP addressing condition or configuration failure on the right.
- A workstation interface receives an IP address of 169.254.112.45 with subnet mask 255.255.0.0 upon boot and loses connection to internal network shares.APIPA (Automatic Private IP Addressing) fallback due to an unreachable or non-responsive DHCP server.
- A static host with IP address 10.20.30.15/24 can successfully ping local hosts on 10.20.30.0/24, but cannot communicate with hosts on remote subnets.Missing or incorrect Default Gateway address setting.
- A client host can successfully ping external servers using their direct IP address (e.g., 8.8.8.8), but web browsers fail to load sites using domain names.Unresponsive or misconfigured Domain Name System (DNS) server configuration.
- A workstation network interface automatically generates a non-routable unicast address starting with `fe80::` for local segment traffic.IPv6 Link-Local auto-configuration for single-link communications.
Cevap
The diagnostic scenarios correspond to their root configuration causes as follows: 1) 169.254.x.x assignment indicates APIPA due to DHCP failure; 2) Subnet-only communication points to a missing or invalid default gateway; 3) IP connectivity without domain access indicates a DNS configuration error; 4) fe80:: prefix represents IPv6 Link-Local auto-configuration.
Each scenario maps to a fundamental network diagnostic principle: APIPA (169.254.x.x) occurs when DHCP discovery times out; default gateway misconfiguration permits local communications while blocking external routing; DNS issues break hostname resolution while preserving direct IP connectivity; and the fe80:: block signifies standard IPv6 link-local auto-configuration.
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Anahtar Kavram
IP Diagnostic Scenario Identification & Network Configuration Symptoms