Skill-Profil

DNS Deep Dive

DNS: record types, resolution, DNSSEC, DoH/DoT, CDN DNS, split-horizon

Networking & Telecom Network Protocols

Rollen

wo dieser Skill vorkommt

Stufen

strukturierter Entwicklungspfad

Pflichtanforderungen

die anderen 4 optional

Networking & Telecom

Network Protocols

17.3.2026

Wählen Sie Ihr aktuelles Level und vergleichen Sie die Erwartungen.

Was wird auf jedem Level erwartet

Die Tabelle zeigt, wie die Tiefe von Junior bis Principal wächst.

Rolle	Pflicht	Beschreibung
IoT Engineer		Understands DNS role in IoT: cloud service name resolution, mDNS for local discovery. Configures DNS client on IoT devices.
Network Engineer	Pflicht	Understands DNS hierarchy: root servers, TLD, authoritative, recursive resolvers. Knows main record types (A, AAAA, CNAME, MX, TXT, SRV). Can perform dig/nslookup queries.
Telecom Developer		Understands the fundamentals of DNS Deep Dive. Applies basic practices in daily work. Follows recommendations from the team and documentation.

Rolle	Pflicht	Beschreibung
IoT Engineer		Configures DNS strategies for IoT: DNS-over-TLS for security, failover DNS, caching on IoT gateway. Diagnoses DNS issues in IoT networks.
Network Engineer	Pflicht	Configures authoritative DNS servers (BIND, PowerDNS). Implements split-horizon DNS. Diagnoses DNS problems and understands TTL, negative caching.
Telecom Developer		Independently applies DNS Deep Dive in practice. Understands trade-offs of different approaches. Solves typical tasks independently.

Rolle	Pflicht	Beschreibung
IoT Engineer	Pflicht	Designs DNS infrastructure for IoT platform: private DNS zones, DNS-based device routing, geo-DNS for multi-region IoT. Ensures DNS security (DNSSEC).
Network Engineer	Pflicht	Designs highly available DNS infrastructure with anycast. Implements DNSSEC for zones. Configures DNS-based load balancing and health checking.
Telecom Developer	Pflicht	Has deep expertise in DNS Deep Dive. Designs solutions for production systems. Optimizes and scales. Mentors the team.

Rolle	Pflicht	Beschreibung
IoT Engineer	Pflicht	Defines DNS strategy for IoT infrastructure. Establishes naming conventions and DNS management for large-scale IoT deployments.
Network Engineer	Pflicht	Defines DNS architecture for the organization. Makes decisions on DNS providers (Route53, Cloudflare). Manages DNS operations. This skill is critically important for successful performance in the role.
Telecom Developer	Pflicht	Defines DNS Deep Dive strategy at the team/product level. Establishes standards and best practices. Conducts reviews.

Rolle	Pflicht	Beschreibung
IoT Engineer	Pflicht	Defines enterprise DNS strategy for IoT. Evaluates DNS-based service discovery (Consul) and cloud-native DNS for IoT platform services.
Network Engineer	Pflicht	Shapes DNS strategy for the platform. Researches modern DNS: DNS over HTTPS/TLS, DNSSEC adoption. Influences the organization's DNS standards.
Telecom Developer	Pflicht	Defines DNS Deep Dive strategy at the organizational level. Establishes enterprise approaches. Mentors leads and architects.

Junior 3 Anforderungen

IoT Engineer

Understands DNS role in IoT: cloud service name resolution, mDNS for local discovery. Configures DNS client on IoT devices.
Network Engineer
Pflicht

Understands DNS hierarchy: root servers, TLD, authoritative, recursive resolvers. Knows main record types (A, AAAA, CNAME, MX, TXT, SRV). Can perform dig/nslookup queries.
Telecom Developer

Understands the fundamentals of DNS Deep Dive. Applies basic practices in daily work. Follows recommendations from the team and documentation.

Middle 3 Anforderungen

IoT Engineer

Configures DNS strategies for IoT: DNS-over-TLS for security, failover DNS, caching on IoT gateway. Diagnoses DNS issues in IoT networks.
Network Engineer
Pflicht

Configures authoritative DNS servers (BIND, PowerDNS). Implements split-horizon DNS. Diagnoses DNS problems and understands TTL, negative caching.
Telecom Developer

Independently applies DNS Deep Dive in practice. Understands trade-offs of different approaches. Solves typical tasks independently.

Senior 3 Anforderungen

IoT Engineer
Pflicht

Designs DNS infrastructure for IoT platform: private DNS zones, DNS-based device routing, geo-DNS for multi-region IoT. Ensures DNS security (DNSSEC).
Network Engineer
Pflicht

Designs highly available DNS infrastructure with anycast. Implements DNSSEC for zones. Configures DNS-based load balancing and health checking.
Telecom Developer
Pflicht

Has deep expertise in DNS Deep Dive. Designs solutions for production systems. Optimizes and scales. Mentors the team.

Lead / Staff 3 Anforderungen

IoT Engineer
Pflicht

Defines DNS strategy for IoT infrastructure. Establishes naming conventions and DNS management for large-scale IoT deployments.
Network Engineer
Pflicht

Defines DNS architecture for the organization. Makes decisions on DNS providers (Route53, Cloudflare). Manages DNS operations. This skill is critically important for successful performance in the role.
Telecom Developer
Pflicht

Defines DNS Deep Dive strategy at the team/product level. Establishes standards and best practices. Conducts reviews.

Principal 3 Anforderungen

IoT Engineer
Pflicht

Defines enterprise DNS strategy for IoT. Evaluates DNS-based service discovery (Consul) and cloud-native DNS for IoT platform services.
Network Engineer
Pflicht

Shapes DNS strategy for the platform. Researches modern DNS: DNS over HTTPS/TLS, DNSSEC adoption. Influences the organization's DNS standards.
Telecom Developer
Pflicht

Defines DNS Deep Dive strategy at the organizational level. Establishes enterprise approaches. Mentors leads and architects.

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