Database Administrator
Keeps databases correct, fast, secure and recoverable: design support, performance tuning, access control, backups and restores.
What the job involves
A database administrator keeps an organisation's data correct, available, fast and recoverable. The work covers installing and configuring database servers, designing and reviewing schemas, tuning slow queries, controlling who can see what, taking backups and proving they restore, and being the person called when a system that everyone depends on stops responding.
Where the work is
Banks, insurers and microfinance institutions, telecom operators, government agencies running national systems, hospitals, universities, software companies and the hosting providers that run databases for other organisations.
How people get into it
Most administrators come from a degree or diploma in IT, computer science or information systems, then move in through systems administration, development or support. Deep SQL, one platform learned thoroughly, and a record of recoveries that worked are what get people hired.
Guides for this position
- Exam guide
What database administrator written tests cover: SQL, schema design, indexes and performance, transactions, backup and recovery, security and availability.
- Practice questions
Database administrator practice questions with answers: SQL, indexes, transactions, backup and recovery, security and storage, plus worked calculations.
- Worked calculations
Database administrator calculations with full working: RAID capacity for data volumes, backup transfer times, and search efficiency as tables grow.
- Interview questions
Database administrator interview questions with model answers: a slow query, a failed backup, deadlocks, access requests, a corrupted database and recovery.
- 30-day study plan
A 30-day database administrator study plan: SQL and design, indexes and performance, transactions, backup and recovery, security, with two timed mocks.
- Skills and qualifications
The skills database administrator posts ask for: SQL and design, performance tuning, backup and recovery, security, availability, monitoring and automation.
- Job description
A database administrator job description: installation and configuration, performance, backup and recovery, security, monitoring, relationships and performance.
- How to become one
How to become a database administrator in Rwanda: qualifications, routes in from support or development, practice at home, certificates and applying.
- Mistakes to avoid
Mistakes that cost database administrator candidates marks: join confusion, index assumptions, forgotten transaction effects, and backups without restores.
- Key topics
Database administrator key topics with quick reference: SQL command groups, RAID levels, and how design, indexing and recovery decisions connect.
- CV guide
How to write a database administrator CV: showing systems run, recoveries performed, performance gains, platforms and the evidence panels check.
- Certifications
Certifications for database administrators: Azure Database Administrator, Oracle SQL, MongoDB administrator, and how to choose the one that fits your engine.
What to study for this position
The suggested emphasis reflects what this position works with day to day. It is a study guide, not a published exam blueprint.
| Area | Suggested emphasis | Questions in the bank | Practise |
|---|---|---|---|
| Software development | 36% | 378 | In the full bank |
| Cybersecurity | 18% | 541 | Security |
| Hardware and operating systems | 18% | 961 | Hardware & OS |
| Linux command line | 18% | 360 | In the full bank |
| Cloud and emerging technology | 9% | 188 | In the full bank |
2,428 questions in the bank cover these areas.
Open adverts for this position
No open Database Administrator advert matched when the jobs board was last checked. It is refreshed every morning.
Practise
- MIFOTRA Security and Cybersecurity · Threats, cryptography, access control and incident response.
- MIFOTRA Hardware and Operating Systems · Hardware, operating systems, mobile devices and support practice.