Nagios Log Server Administration Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the primary purpose of Nagios Log Server?
A. Network routing
B. Centralized log management and analysis
C. Hardware monitoring only
D. Cloud storage backup
Answer: B
Rationale: Nagios Log Server is designed to collect, store, and
analyze log data from multiple sources in a centralized system.
2. Which component is the core data storage engine in Nagios Log
Server?
A. MySQL
B. Apache
C. Elasticsearch
D. MongoDB
, Answer: C
Rationale: Elasticsearch is used as the primary search and indexing
engine for log storage and retrieval.
3. Which protocol is commonly used to send logs to Nagios Log Server?
A. FTP
B. Syslog
C. SMTP
D. SNMP traps only
Answer: B
Rationale: Syslog is the standard protocol used for forwarding log
messages to the server.
4. What web server is typically used in Nagios Log Server architecture?
A. IIS
B. Apache HTTP Server
C. Nginx only
D. Tomcat
Answer: B
Rationale: Apache HTTP Server is commonly used to serve the Nagios
Log Server web interface.
5. Which port is default for Syslog over UDP?
A. 22
B. 80
C. 514
, D. 443
Answer: C
Rationale: UDP port 514 is the standard port for Syslog
communication.
6. What is the role of Logstash in Nagios Log Server?
A. Database management
B. Log collection and processing
C. User authentication
D. Hardware monitoring
Answer: B
Rationale: Logstash processes and filters incoming log data before
indexing.
7. Which file format is commonly used for configuration in Nagios Log
Server?
A. .exe
B. .conf
C. .doc
D. .bin
Answer: B
Rationale: Configuration settings are typically stored in .conf files.
8. What is the function of Elasticsearch clusters in Nagios Log Server?
A. Email notifications
B. Load balancing web traffic
, C. Distributed indexing and search
D. DNS resolution
Answer: C
Rationale: Clusters allow distributed storage and fast searching of
log data.
9. Which query language is used in Nagios Log Server searches?
A. SQL
B. Lucene Query Language
C. HTML
D. Bash scripting
Answer: B
Rationale: Lucene query syntax is used for advanced log searching.
10. What is a “Log Source” in Nagios Log Server?
A. Backup server
B. Device or system sending logs
C. Database engine
D. Firewall rule
Answer: B
Rationale: A log source refers to any system or device that generates
and sends logs.
11. Which service ensures high availability in Nagios Log Server?
A. Cluster replication
B. DHCP
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the primary purpose of Nagios Log Server?
A. Network routing
B. Centralized log management and analysis
C. Hardware monitoring only
D. Cloud storage backup
Answer: B
Rationale: Nagios Log Server is designed to collect, store, and
analyze log data from multiple sources in a centralized system.
2. Which component is the core data storage engine in Nagios Log
Server?
A. MySQL
B. Apache
C. Elasticsearch
D. MongoDB
, Answer: C
Rationale: Elasticsearch is used as the primary search and indexing
engine for log storage and retrieval.
3. Which protocol is commonly used to send logs to Nagios Log Server?
A. FTP
B. Syslog
C. SMTP
D. SNMP traps only
Answer: B
Rationale: Syslog is the standard protocol used for forwarding log
messages to the server.
4. What web server is typically used in Nagios Log Server architecture?
A. IIS
B. Apache HTTP Server
C. Nginx only
D. Tomcat
Answer: B
Rationale: Apache HTTP Server is commonly used to serve the Nagios
Log Server web interface.
5. Which port is default for Syslog over UDP?
A. 22
B. 80
C. 514
, D. 443
Answer: C
Rationale: UDP port 514 is the standard port for Syslog
communication.
6. What is the role of Logstash in Nagios Log Server?
A. Database management
B. Log collection and processing
C. User authentication
D. Hardware monitoring
Answer: B
Rationale: Logstash processes and filters incoming log data before
indexing.
7. Which file format is commonly used for configuration in Nagios Log
Server?
A. .exe
B. .conf
C. .doc
D. .bin
Answer: B
Rationale: Configuration settings are typically stored in .conf files.
8. What is the function of Elasticsearch clusters in Nagios Log Server?
A. Email notifications
B. Load balancing web traffic
, C. Distributed indexing and search
D. DNS resolution
Answer: C
Rationale: Clusters allow distributed storage and fast searching of
log data.
9. Which query language is used in Nagios Log Server searches?
A. SQL
B. Lucene Query Language
C. HTML
D. Bash scripting
Answer: B
Rationale: Lucene query syntax is used for advanced log searching.
10. What is a “Log Source” in Nagios Log Server?
A. Backup server
B. Device or system sending logs
C. Database engine
D. Firewall rule
Answer: B
Rationale: A log source refers to any system or device that generates
and sends logs.
11. Which service ensures high availability in Nagios Log Server?
A. Cluster replication
B. DHCP
