Zabbix Certified Specialist Exam (Version 5) Question
Bank (Latest 2026/2027 Edition) – Questions, Answers &
Detailed Rationales
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SECTION 1: ZABBIX ARCHITECTURE AND INSTALLATION
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Question 1
A systems administrator is planning a new Zabbix 7.0 deployment to monitor 5,000
devices with approximately 100,000 metrics collected every 60 seconds. The
organization requires high availability and expects the database to grow significantly
over three years. Which database backend is recommended by Zabbix for this scale and
why?
A. SQLite, because it requires minimal configuration and has low overhead for small to
medium deployments
B. MySQL or PostgreSQL, because they support partitioning, replication, and the
performance required for large-scale production environments
C. Oracle Database, because it is the only database officially supported by Zabbix for
enterprise licensing
D. Microsoft SQL Server, because it offers superior Windows integration and is the
default choice for Zabbix on Windows platforms
Correct Answer:
B — MySQL or PostgreSQL, because they support partitioning, replication, and the
performance required for large-scale production environments
Rationale:
Zabbix officially supports MySQL and PostgreSQL as production database backends,
both of which provide the partitioning, replication, and performance tuning capabilities
,necessary for large-scale deployments with high metric volumes. SQLite (A) is explicitly
not recommended for production. Oracle (C) is not officially supported by Zabbix.
MSSQL (D) is not a supported backend for Zabbix server.
Question 2
An organization is deploying Zabbix server on a Linux platform and must ensure the
server meets minimum hardware requirements for monitoring 2,000 hosts. Which
configuration represents the minimum recommended resources for the Zabbix server
component?
A. 1 CPU core, 2 GB RAM, and SATA storage
B. 2 CPU cores, 8 GB RAM, and SSD storage
C. 4 CPU cores, 16 GB RAM, and NVMe storage
D. 8 CPU cores, 32 GB RAM, and SAN-attached storage
Correct Answer:
B — 2 CPU cores, 8 GB RAM, and SSD storage
Rationale:
For monitoring approximately 2,000 hosts, Zabbix recommends a minimum of 2 CPU
cores and 8 GB RAM with fast storage (SSD) to handle the database I/O demands. One
core and 2 GB (A) is insufficient for this scale. While 4 cores and 16 GB (C) provides
better performance, it exceeds the minimum. Eight cores and 32 GB (D) is appropriate
for much larger deployments.
Question 3
A Zabbix administrator needs to deploy the Zabbix server with high availability using the
native HA feature introduced in Zabbix 6.0. Which requirement is mandatory for
configuring Zabbix server HA?
A. A shared network file system (NFS) for all Zabbix server nodes
,B. A shared database backend accessible by all HA nodes and unique NodeName
parameters in the configuration
C. A load balancer configured with sticky sessions in front of the Zabbix server nodes
D. Pacemaker and Corosync clustering software installed on each node
Correct Answer:
B — A shared database backend accessible by all HA nodes and unique NodeName
parameters in the configuration
Rationale:
Zabbix native HA requires all nodes to connect to the same database and each node
must have a unique NodeName configured in zabbix_server.conf. Shared NFS (A) is not
required. A load balancer (C) is used for frontend HA, not server HA.
Pacemaker/Corosync (D) is not required as Zabbix implements HA natively without
external clustering software.
Question 4
An administrator is installing Zabbix proxy to handle remote site monitoring where
network connectivity to the main datacenter is intermittent and bandwidth is limited.
Which mode of operation should the Zabbix proxy be configured to use?
A. Active proxy mode, where the proxy connects to the Zabbix server to request
configuration and send data
B. Passive proxy mode, where the Zabbix server connects to the proxy to push
configuration and pull data
C. Proxy mode is not required; the Zabbix server can buffer data during network outages
natively
D. Both active and passive proxy modes must be enabled simultaneously for
redundancy
Correct Answer:
A — Active proxy mode, where the proxy connects to the Zabbix server to request
configuration and send data
, Rationale:
Active proxy mode is designed for scenarios with limited or intermittent connectivity
because the proxy initiates connections to the server, allowing it to function behind NAT
and firewalls. Passive proxy (B) requires the server to connect to the proxy, which is
unsuitable for intermittent connectivity. The server cannot natively buffer during
outages (C). Both modes (D) are not used simultaneously.
Question 5
A security team requires that all Zabbix communications use encrypted connections.
Which encryption methods are natively supported by Zabbix for communication
between server, proxy, and agents?
A. TLS with pre-shared key (PSK) and certificate-based authentication only
B. TLS with PSK, certificate-based authentication, and unencrypted connections
C. IPsec tunneling and SSH tunneling exclusively
D. WPA2-Enterprise wireless encryption and Kerberos authentication
Correct Answer:
B — TLS with PSK, certificate-based authentication, and unencrypted connections
Rationale:
Zabbix natively supports TLS encryption with pre-shared keys (PSK), certificate-based
authentication, and also allows unencrypted connections (for backward compatibility in
controlled environments). IPsec/SSH (C) and WPA2/Kerberos (D) are not natively
implemented Zabbix encryption methods.
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SECTION 2: HOST AND TEMPLATE CONFIGURATION
──────────────────────────────
Question 6
Bank (Latest 2026/2027 Edition) – Questions, Answers &
Detailed Rationales
──────────────────────────────
SECTION 1: ZABBIX ARCHITECTURE AND INSTALLATION
──────────────────────────────
Question 1
A systems administrator is planning a new Zabbix 7.0 deployment to monitor 5,000
devices with approximately 100,000 metrics collected every 60 seconds. The
organization requires high availability and expects the database to grow significantly
over three years. Which database backend is recommended by Zabbix for this scale and
why?
A. SQLite, because it requires minimal configuration and has low overhead for small to
medium deployments
B. MySQL or PostgreSQL, because they support partitioning, replication, and the
performance required for large-scale production environments
C. Oracle Database, because it is the only database officially supported by Zabbix for
enterprise licensing
D. Microsoft SQL Server, because it offers superior Windows integration and is the
default choice for Zabbix on Windows platforms
Correct Answer:
B — MySQL or PostgreSQL, because they support partitioning, replication, and the
performance required for large-scale production environments
Rationale:
Zabbix officially supports MySQL and PostgreSQL as production database backends,
both of which provide the partitioning, replication, and performance tuning capabilities
,necessary for large-scale deployments with high metric volumes. SQLite (A) is explicitly
not recommended for production. Oracle (C) is not officially supported by Zabbix.
MSSQL (D) is not a supported backend for Zabbix server.
Question 2
An organization is deploying Zabbix server on a Linux platform and must ensure the
server meets minimum hardware requirements for monitoring 2,000 hosts. Which
configuration represents the minimum recommended resources for the Zabbix server
component?
A. 1 CPU core, 2 GB RAM, and SATA storage
B. 2 CPU cores, 8 GB RAM, and SSD storage
C. 4 CPU cores, 16 GB RAM, and NVMe storage
D. 8 CPU cores, 32 GB RAM, and SAN-attached storage
Correct Answer:
B — 2 CPU cores, 8 GB RAM, and SSD storage
Rationale:
For monitoring approximately 2,000 hosts, Zabbix recommends a minimum of 2 CPU
cores and 8 GB RAM with fast storage (SSD) to handle the database I/O demands. One
core and 2 GB (A) is insufficient for this scale. While 4 cores and 16 GB (C) provides
better performance, it exceeds the minimum. Eight cores and 32 GB (D) is appropriate
for much larger deployments.
Question 3
A Zabbix administrator needs to deploy the Zabbix server with high availability using the
native HA feature introduced in Zabbix 6.0. Which requirement is mandatory for
configuring Zabbix server HA?
A. A shared network file system (NFS) for all Zabbix server nodes
,B. A shared database backend accessible by all HA nodes and unique NodeName
parameters in the configuration
C. A load balancer configured with sticky sessions in front of the Zabbix server nodes
D. Pacemaker and Corosync clustering software installed on each node
Correct Answer:
B — A shared database backend accessible by all HA nodes and unique NodeName
parameters in the configuration
Rationale:
Zabbix native HA requires all nodes to connect to the same database and each node
must have a unique NodeName configured in zabbix_server.conf. Shared NFS (A) is not
required. A load balancer (C) is used for frontend HA, not server HA.
Pacemaker/Corosync (D) is not required as Zabbix implements HA natively without
external clustering software.
Question 4
An administrator is installing Zabbix proxy to handle remote site monitoring where
network connectivity to the main datacenter is intermittent and bandwidth is limited.
Which mode of operation should the Zabbix proxy be configured to use?
A. Active proxy mode, where the proxy connects to the Zabbix server to request
configuration and send data
B. Passive proxy mode, where the Zabbix server connects to the proxy to push
configuration and pull data
C. Proxy mode is not required; the Zabbix server can buffer data during network outages
natively
D. Both active and passive proxy modes must be enabled simultaneously for
redundancy
Correct Answer:
A — Active proxy mode, where the proxy connects to the Zabbix server to request
configuration and send data
, Rationale:
Active proxy mode is designed for scenarios with limited or intermittent connectivity
because the proxy initiates connections to the server, allowing it to function behind NAT
and firewalls. Passive proxy (B) requires the server to connect to the proxy, which is
unsuitable for intermittent connectivity. The server cannot natively buffer during
outages (C). Both modes (D) are not used simultaneously.
Question 5
A security team requires that all Zabbix communications use encrypted connections.
Which encryption methods are natively supported by Zabbix for communication
between server, proxy, and agents?
A. TLS with pre-shared key (PSK) and certificate-based authentication only
B. TLS with PSK, certificate-based authentication, and unencrypted connections
C. IPsec tunneling and SSH tunneling exclusively
D. WPA2-Enterprise wireless encryption and Kerberos authentication
Correct Answer:
B — TLS with PSK, certificate-based authentication, and unencrypted connections
Rationale:
Zabbix natively supports TLS encryption with pre-shared keys (PSK), certificate-based
authentication, and also allows unencrypted connections (for backward compatibility in
controlled environments). IPsec/SSH (C) and WPA2/Kerberos (D) are not natively
implemented Zabbix encryption methods.
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SECTION 2: HOST AND TEMPLATE CONFIGURATION
──────────────────────────────
Question 6
