Zabbix Certified Specialist Exam Question Bank (Latest
2026/2027 Edition) – Questions, Answers & Detailed
Rationales
──────────────────────────────
SECTION 1: Zabbix Architecture and Core Components
──────────────────────────────
Question 1
A Zabbix administrator is designing a monitoring infrastructure for a distributed
enterprise with 15,000 devices across three data centers. Which architectural
component is most appropriate to reduce WAN traffic and improve local data collection
efficiency?
A. Deploy Zabbix proxies at each data center to handle local polling and preprocessing
before forwarding data to the central server
B. Install three independent Zabbix servers with separate databases and manually
consolidate reports weekly
C. Configure all devices to use Zabbix agents in active mode only and send data directly
to the central server over VPN
D. Use Zabbix sender utilities on each device to push data via SNMP traps to a single
central server
Correct Answer:
A — Deploy Zabbix proxies at each data center to handle local polling and preprocessing
before forwarding data to the central server
Rationale:
Zabbix proxies are designed for distributed monitoring, handling local data collection
and preprocessing to reduce network load and central server burden. Option B creates
data silos and manual consolidation overhead. Option C still concentrates all traffic
,across WAN links. Option D lacks the structured data handling and scalability of proxy
architecture.
Question 2
Which database backend is officially supported by Zabbix 7.0 LTS for production
deployments requiring high availability and failover capabilities?
A. MySQL 8.0 or higher with InnoDB storage engine and Group Replication
B. MongoDB 6.0 configured with replica sets for automatic failover
C. SQLite 3 for lightweight deployments with built-in replication
D. Apache Cassandra for column-family distributed storage
Correct Answer:
A — MySQL 8.0 or higher with InnoDB storage engine and Group Replication
Rationale:
Zabbix 7.0 LTS officially supports MySQL 8.0+ and PostgreSQL 15+ with InnoDB as the
required storage engine for MySQL. MongoDB and Cassandra are not supported
backends. SQLite is supported only for proxies, not server databases. Group Replication
provides the high availability architecture referenced in the question.
Question 3
A monitoring environment requires collecting 50,000 new values per second with 90-day
data retention. Which Zabbix server hardware configuration best meets these
performance requirements?
A. 16 CPU cores, 64 GB RAM, NVMe SSD storage for the database, and 10 Gbps
network interface
B. 4 CPU cores, 16 GB RAM, SATA HDD storage, and 1 Gbps network interface
C. 8 CPU cores, 32 GB RAM, hybrid SSD/HDD storage with database on HDD partition
D. 32 CPU cores, 128 GB RAM, but with database stored on network-attached storage
over 1 Gbps
,Correct Answer:
A — 16 CPU cores, 64 GB RAM, NVMe SSD storage for the database, and 10 Gbps
network interface
Rationale:
High-value-rate Zabbix deployments require substantial CPU for preprocessing and
housekeeping, ample RAM for database caching, and fast NVMe storage for
write-intensive operations. Option B is underspecified for 50,000 NVPS. Option C places
the database on slower HDD, creating a bottleneck. Option D introduces network
storage latency that degrades database performance.
Question 4
Which Zabbix process is responsible for converting collected raw data into calculated
and aggregated metrics before database storage?
A. The preprocessing manager and worker processes
B. The discoverer process for network discovery operations
C. The alerter process for notification generation
D. The housekeeper process for data retention management
Correct Answer:
A — The preprocessing manager and worker processes
Rationale:
Zabbix preprocessing processes handle data transformation including calculations,
aggregations, throttling, and custom JavaScript transformations before data reaches
the database. Option B handles network discovery. Option C manages alert
notifications. Option D performs data cleanup, not preprocessing.
Question 5
In a Zabbix high-availability configuration, which component must be configured
identically across all nodes to ensure seamless failover?
, A. The Zabbix server configuration file (zabbix_server.conf) parameters including
database connection and node identification
B. The frontend PHP configuration with unique secret keys per node
C. The database with separate schemas for each node to prevent conflicts
D. The Zabbix agent configuration with passive checks disabled on secondary nodes
Correct Answer:
A — The Zabbix server configuration file (zabbix_server.conf) parameters including
database connection and node identification
Rationale:
HA nodes must share identical server configurations, particularly database connection
parameters and HA node names, to ensure consistent behavior during failover. Option
B's unique secret keys would break session sharing. Option C's separate schemas
would fragment data. Option D is irrelevant to server HA configuration.
──────────────────────────────
SECTION 2: Installation, Configuration, and Deployment
──────────────────────────────
Question 6
A system administrator is installing Zabbix 7.0 from packages on a RHEL 9 system.
Which prerequisite must be satisfied before the Zabbix server package can be installed?
A. The Zabbix official repository must be configured and the required database server
package installed
B. SELinux must be permanently disabled in the kernel boot parameters
C. The system must have a minimum of 256 GB storage regardless of monitoring scale
D. The Apache web server must be replaced with Nginx for the frontend to function
Correct Answer:
A — The Zabbix official repository must be configured and the required database server
package installed
2026/2027 Edition) – Questions, Answers & Detailed
Rationales
──────────────────────────────
SECTION 1: Zabbix Architecture and Core Components
──────────────────────────────
Question 1
A Zabbix administrator is designing a monitoring infrastructure for a distributed
enterprise with 15,000 devices across three data centers. Which architectural
component is most appropriate to reduce WAN traffic and improve local data collection
efficiency?
A. Deploy Zabbix proxies at each data center to handle local polling and preprocessing
before forwarding data to the central server
B. Install three independent Zabbix servers with separate databases and manually
consolidate reports weekly
C. Configure all devices to use Zabbix agents in active mode only and send data directly
to the central server over VPN
D. Use Zabbix sender utilities on each device to push data via SNMP traps to a single
central server
Correct Answer:
A — Deploy Zabbix proxies at each data center to handle local polling and preprocessing
before forwarding data to the central server
Rationale:
Zabbix proxies are designed for distributed monitoring, handling local data collection
and preprocessing to reduce network load and central server burden. Option B creates
data silos and manual consolidation overhead. Option C still concentrates all traffic
,across WAN links. Option D lacks the structured data handling and scalability of proxy
architecture.
Question 2
Which database backend is officially supported by Zabbix 7.0 LTS for production
deployments requiring high availability and failover capabilities?
A. MySQL 8.0 or higher with InnoDB storage engine and Group Replication
B. MongoDB 6.0 configured with replica sets for automatic failover
C. SQLite 3 for lightweight deployments with built-in replication
D. Apache Cassandra for column-family distributed storage
Correct Answer:
A — MySQL 8.0 or higher with InnoDB storage engine and Group Replication
Rationale:
Zabbix 7.0 LTS officially supports MySQL 8.0+ and PostgreSQL 15+ with InnoDB as the
required storage engine for MySQL. MongoDB and Cassandra are not supported
backends. SQLite is supported only for proxies, not server databases. Group Replication
provides the high availability architecture referenced in the question.
Question 3
A monitoring environment requires collecting 50,000 new values per second with 90-day
data retention. Which Zabbix server hardware configuration best meets these
performance requirements?
A. 16 CPU cores, 64 GB RAM, NVMe SSD storage for the database, and 10 Gbps
network interface
B. 4 CPU cores, 16 GB RAM, SATA HDD storage, and 1 Gbps network interface
C. 8 CPU cores, 32 GB RAM, hybrid SSD/HDD storage with database on HDD partition
D. 32 CPU cores, 128 GB RAM, but with database stored on network-attached storage
over 1 Gbps
,Correct Answer:
A — 16 CPU cores, 64 GB RAM, NVMe SSD storage for the database, and 10 Gbps
network interface
Rationale:
High-value-rate Zabbix deployments require substantial CPU for preprocessing and
housekeeping, ample RAM for database caching, and fast NVMe storage for
write-intensive operations. Option B is underspecified for 50,000 NVPS. Option C places
the database on slower HDD, creating a bottleneck. Option D introduces network
storage latency that degrades database performance.
Question 4
Which Zabbix process is responsible for converting collected raw data into calculated
and aggregated metrics before database storage?
A. The preprocessing manager and worker processes
B. The discoverer process for network discovery operations
C. The alerter process for notification generation
D. The housekeeper process for data retention management
Correct Answer:
A — The preprocessing manager and worker processes
Rationale:
Zabbix preprocessing processes handle data transformation including calculations,
aggregations, throttling, and custom JavaScript transformations before data reaches
the database. Option B handles network discovery. Option C manages alert
notifications. Option D performs data cleanup, not preprocessing.
Question 5
In a Zabbix high-availability configuration, which component must be configured
identically across all nodes to ensure seamless failover?
, A. The Zabbix server configuration file (zabbix_server.conf) parameters including
database connection and node identification
B. The frontend PHP configuration with unique secret keys per node
C. The database with separate schemas for each node to prevent conflicts
D. The Zabbix agent configuration with passive checks disabled on secondary nodes
Correct Answer:
A — The Zabbix server configuration file (zabbix_server.conf) parameters including
database connection and node identification
Rationale:
HA nodes must share identical server configurations, particularly database connection
parameters and HA node names, to ensure consistent behavior during failover. Option
B's unique secret keys would break session sharing. Option C's separate schemas
would fragment data. Option D is irrelevant to server HA configuration.
──────────────────────────────
SECTION 2: Installation, Configuration, and Deployment
──────────────────────────────
Question 6
A system administrator is installing Zabbix 7.0 from packages on a RHEL 9 system.
Which prerequisite must be satisfied before the Zabbix server package can be installed?
A. The Zabbix official repository must be configured and the required database server
package installed
B. SELinux must be permanently disabled in the kernel boot parameters
C. The system must have a minimum of 256 GB storage regardless of monitoring scale
D. The Apache web server must be replaced with Nginx for the frontend to function
Correct Answer:
A — The Zabbix official repository must be configured and the required database server
package installed
