Perfil de habilidad

DNS Deep Dive

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

Networking & Telecom Network Protocols

Roles

donde aparece esta habilidad

Niveles

ruta de crecimiento estructurada

Requisitos obligatorios

los otros 4 opcionales

Networking & Telecom

Network Protocols

17/3/2026

Selecciona tu nivel actual y compara las expectativas.

Qué se espera en cada nivel

La tabla muestra cómo crece la profundidad desde Junior hasta Principal.

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

Rol	Obligatorio	Descripción
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	Obligatorio	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.

Rol	Obligatorio	Descripción
IoT Engineer	Obligatorio	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	Obligatorio	Designs highly available DNS infrastructure with anycast. Implements DNSSEC for zones. Configures DNS-based load balancing and health checking.
Telecom Developer	Obligatorio	Has deep expertise in DNS Deep Dive. Designs solutions for production systems. Optimizes and scales. Mentors the team.

Rol	Obligatorio	Descripción
IoT Engineer	Obligatorio	Defines DNS strategy for IoT infrastructure. Establishes naming conventions and DNS management for large-scale IoT deployments.
Network Engineer	Obligatorio	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	Obligatorio	Defines DNS Deep Dive strategy at the team/product level. Establishes standards and best practices. Conducts reviews.

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

Junior 3 requisitos

IoT Engineer

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

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 requisitos

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
Obligatorio

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 requisitos

IoT Engineer
Obligatorio

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
Obligatorio

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

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

Lead / Staff 3 requisitos

IoT Engineer
Obligatorio

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

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
Obligatorio

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

Principal 3 requisitos

IoT Engineer
Obligatorio

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

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

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

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