CompTIA Network+ Certification Exam
Practice Examination 2026–2027 |
Comprehensive Question Practice Test
with Answers & Rationales| Free Pdf
Access
1. What is the primary purpose of a network?
A. Increase storage capacity
B. Connect devices to share resources and information
C. Improve graphics performance
D. Replace operating systems
Correct Answer: B
Rationale: Networks allow devices to communicate and share data, applications, and
resources.
2. Which OSI model layer is responsible for routing packets between networks?
A. Physical Layer
B. Data Link Layer
C. Network Layer
D. Session Layer
Correct Answer: C
Rationale: The Network Layer (Layer 3) handles logical addressing and routing of packets.
,3. Which device primarily operates at the OSI Network Layer?
A. Hub
B. Switch
C. Router
D. Repeater
Correct Answer: C
Rationale: Routers use IP addresses to forward traffic between networks.
4. What does TCP stand for?
A. Transfer Control Protocol
B. Transmission Control Protocol
C. Terminal Communication Protocol
D. Transport Connection Protocol
Correct Answer: B
Rationale: TCP is a connection-oriented protocol that ensures reliable data delivery.
5. Which protocol is connectionless and commonly used for streaming and VoIP?
A. TCP
B. UDP
C. FTP
D. SSH
Correct Answer: B
Rationale: UDP provides fast communication without the overhead of connection
establishment.
6. What does IP stand for?
A. Internet Protocol
B. Internal Protocol
C. Integrated Port
D. Internet Port
Correct Answer: A
Rationale: Internet Protocol provides addressing and routing for network communications.
, 7. Which protocol translates domain names into IP addresses?
A. DHCP
B. DNS
C. FTP
D. SMTP
Correct Answer: B
Rationale: DNS resolves human-readable domain names into IP addresses.
8. Which protocol automatically assigns IP addresses to devices?
A. DNS
B. FTP
C. DHCP
D. SNMP
Correct Answer: C
Rationale: DHCP dynamically assigns network configuration information to clients.
9. What is the default port number for HTTP?
A. 21
B. 25
C. 80
D. 443
Correct Answer: C
Rationale: HTTP uses TCP port 80 for standard web communications.
10. What is the default port number for HTTPS?
A. 80
B. 443
C. 22
D. 53
Correct Answer: B
Practice Examination 2026–2027 |
Comprehensive Question Practice Test
with Answers & Rationales| Free Pdf
Access
1. What is the primary purpose of a network?
A. Increase storage capacity
B. Connect devices to share resources and information
C. Improve graphics performance
D. Replace operating systems
Correct Answer: B
Rationale: Networks allow devices to communicate and share data, applications, and
resources.
2. Which OSI model layer is responsible for routing packets between networks?
A. Physical Layer
B. Data Link Layer
C. Network Layer
D. Session Layer
Correct Answer: C
Rationale: The Network Layer (Layer 3) handles logical addressing and routing of packets.
,3. Which device primarily operates at the OSI Network Layer?
A. Hub
B. Switch
C. Router
D. Repeater
Correct Answer: C
Rationale: Routers use IP addresses to forward traffic between networks.
4. What does TCP stand for?
A. Transfer Control Protocol
B. Transmission Control Protocol
C. Terminal Communication Protocol
D. Transport Connection Protocol
Correct Answer: B
Rationale: TCP is a connection-oriented protocol that ensures reliable data delivery.
5. Which protocol is connectionless and commonly used for streaming and VoIP?
A. TCP
B. UDP
C. FTP
D. SSH
Correct Answer: B
Rationale: UDP provides fast communication without the overhead of connection
establishment.
6. What does IP stand for?
A. Internet Protocol
B. Internal Protocol
C. Integrated Port
D. Internet Port
Correct Answer: A
Rationale: Internet Protocol provides addressing and routing for network communications.
, 7. Which protocol translates domain names into IP addresses?
A. DHCP
B. DNS
C. FTP
D. SMTP
Correct Answer: B
Rationale: DNS resolves human-readable domain names into IP addresses.
8. Which protocol automatically assigns IP addresses to devices?
A. DNS
B. FTP
C. DHCP
D. SNMP
Correct Answer: C
Rationale: DHCP dynamically assigns network configuration information to clients.
9. What is the default port number for HTTP?
A. 21
B. 25
C. 80
D. 443
Correct Answer: C
Rationale: HTTP uses TCP port 80 for standard web communications.
10. What is the default port number for HTTPS?
A. 80
B. 443
C. 22
D. 53
Correct Answer: B
