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Master Certificate in Troubleshooting DNS with UTL\_INADDR.GET\_HOST\_NAME

Name: Master DNS Troubleshooting with UTL_INADDR.GET_HOST_NAME
Rating: 4.0 (4976 reviews)

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The Professional Certificate in Troubleshooting DNS with UTL_INADDR.GET_HOST_NAME is a comprehensive master programme comprising 30 units designed to address critical industry demands for robust network infrastructure expertise.

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AboutThisCourse

As DNS issues can severely disrupt global connectivity, this certification equips learners with advanced diagnostic skills and practical knowledge essential for maintaining system reliability. By mastering these techniques, professionals enhance their ability to resolve complex networking challenges efficiently. This credential significantly boosts career prospects, validating expertise in a high-demand field. Graduates gain the confidence and technical proficiency needed to secure senior roles, driving organizational stability while advancing their own professional trajectories in the competitive IT landscape.

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CourseDetails

Introduction to DNS Architecture and Resolution
Understanding Domain Name Hierarchy
Root Servers and TLD Infrastructure
Authoritative vs Recursive Resolvers
DNS Record Types: A, AAAA, and CNAME
Mail Exchange and TXT Records
NS Records and Zone Delegation
SOA Records and Zone Transfers
DNS Query Lifecycle Analysis
Iterative vs Recursive Query Mechanics
DNS Caching Strategies and TTL
Cache Poisoning and Security Risks
DNSSEC Fundamentals and Validation
Configuring BIND DNS Servers
Windows DNS Server Management
Diagnosing Connectivity with nslookup
Advanced Diagnostics with dig and drill
Using host and ping for Basic Checks
Implementing UTL_INADDR.GET_HOST_NAME
Oracle Network Configuration Files
TNSNAMES.ORA Structure and Syntax
HOSTNAME Resolution in Oracle Environments
Resolving UTL_INADDR.GET_HOST_NAME Failures
Firewall Rules and DNS Port 53
Split-Horizon DNS Configurations
Internal vs External DNS Zones
DNS Load Balancing Techniques
Geo-DNS and Traffic Management
Debugging Complex Resolution Loops
Performance Optimization for DNS Servers

CareerPath

The Professional Certificate in Troubleshooting DNS with UTL_INADDR.GET_HOST_NAME provides specialized skills highly valued in the UK technology sector.

Graduates typically transition into roles requiring deep network diagnostics and system administration capabilities.

Network Infrastructure Engineer (35%) - Focuses on designing and maintaining robust network architectures with advanced DNS resolution capabilities.

Systems Administrator (25%) - Manages server environments, ensuring optimal performance and troubleshooting connectivity issues.

Cloud Operations Specialist (22%) - Specializes in cloud-based DNS services and hybrid cloud infrastructure management.

DevOps Engineer (18%) - Integrates DNS troubleshooting into CI/CD pipelines and automates network configuration management.

EntryRequirements

BasicUnderstandingSubject
ProficiencyEnglish
ComputerInternetAccess
BasicComputerSkills
DedicationCompleteCourse

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SkillsYoullGain

Dns Troubleshooting Utl_Inaddr Host Resolution Oracle Networking

CourseFee

MasterCertificate £499

CompleteInFourMonths

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MASTER CERTIFICATE IN TROUBLESHOOTING DNS WITH UTL\_INADDR.GET\_HOST\_NAME

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London School of International Business (LSIB)

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05 May 2025

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