CompTIA Security+ Certification
Practice Exams 2025 Questions and
Answers
Which network device transmits data between different networks by examining the destination
network address in a packet?
A. Load balancer
B. Layer 2 switch
C. Router
D. NIC - ANSWER✔✔-C
You have been asked to implement a solution that separates a large busy network into many smaller
collision domains. Which device should you implement?
A. Load balancer
B. Layer 2 switch
C. Router
D. NIC - ANSWER✔✔-B
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 1
,A busy web site has not been responding well because of the large volumes of HTTP connections to
the web server. Which solution would increase web server performance?
A. Add more RAM to the web server.
B. Install two web servers hosting the same content. Configure a load balancer to distribute
incoming HTTP connections between the two web servers.
C. Place a router between the web server and the Internet to throttle incoming HTTP connections.
D. Enable SSL on the web server. - ANSWER✔✔-B
Your network consists of customers who connect to the Internet using their Wi-Fi mobile devices as
well as employees who use their wired desktops for company business. You must ensure customer
traffic and corporate network traffic are kept isolated. What should you do?
A. Install and configure a load balancer.
B. Use a separate network switch for customers.
C. Upgrade the desktop NICs to 10Gbps.
D. Place the wireless access point on a separate VLAN. - ANSWER✔✔-D
Your company's networks and devices were recently migrated to IPv6, although there are still a
small number of IPv4 hosts online. You are asked to verify that a server named hq-01.acme.us is
reachable on the network via IPv6. Write the command(s) you would use to verify this:
____________________ - ANSWER✔✔-ping -6 hq-01.acme.us
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
,Your network consists of routers and switches, as well as a variety of other network devices. You are
configuring a wireless router, as shown in Figure 1-1, and need to allow network management traffic
through. Which protocol should be removed from the blocked list?
A. SMTP
B. SNMP
C. IKE
D. None - ANSWER✔✔-B
Which protocol suite uses 128-bit IP addresses?
A. IPv4
B. IPv5
C. IPv6
D. Network interface cards - ANSWER✔✔-C
Your newly configured SMTP mail server is not receiving mail from the Internet. You realize you
did not configure any DNS records for SMTP mail transfer. Which type of DNS resource record
must you create?
A. CNAME
B. MX
C. PTR
D. A - ANSWER✔✔-B
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 3
, While troubleshooting connectivity to your remote file server, you realize that a firewall is
preventing you from pinging the server. Which type of firewall rule should you create to allow ping
traffic?
A. UDP
B. IGMP
C. TCP
D. ICMP - ANSWER✔✔-D
199.126.19.71 is an example of which type of address?
A. IPv4
B. Port
C. IPv6
D. MAC - ANSWER✔✔-A
Your Linux virtual file server is running out of disk space. It has been decided that a network
storage appliance on a dedicated TCP/IP network will provide disk space to your file server. Which
type of SAN disk access protocol will be used by the file server?
A. Fibre Channel SAN
B. SMB
C. iSCSI
D. TCP/IP - ANSWER✔✔-C
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 4
Practice Exams 2025 Questions and
Answers
Which network device transmits data between different networks by examining the destination
network address in a packet?
A. Load balancer
B. Layer 2 switch
C. Router
D. NIC - ANSWER✔✔-C
You have been asked to implement a solution that separates a large busy network into many smaller
collision domains. Which device should you implement?
A. Load balancer
B. Layer 2 switch
C. Router
D. NIC - ANSWER✔✔-B
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 1
,A busy web site has not been responding well because of the large volumes of HTTP connections to
the web server. Which solution would increase web server performance?
A. Add more RAM to the web server.
B. Install two web servers hosting the same content. Configure a load balancer to distribute
incoming HTTP connections between the two web servers.
C. Place a router between the web server and the Internet to throttle incoming HTTP connections.
D. Enable SSL on the web server. - ANSWER✔✔-B
Your network consists of customers who connect to the Internet using their Wi-Fi mobile devices as
well as employees who use their wired desktops for company business. You must ensure customer
traffic and corporate network traffic are kept isolated. What should you do?
A. Install and configure a load balancer.
B. Use a separate network switch for customers.
C. Upgrade the desktop NICs to 10Gbps.
D. Place the wireless access point on a separate VLAN. - ANSWER✔✔-D
Your company's networks and devices were recently migrated to IPv6, although there are still a
small number of IPv4 hosts online. You are asked to verify that a server named hq-01.acme.us is
reachable on the network via IPv6. Write the command(s) you would use to verify this:
____________________ - ANSWER✔✔-ping -6 hq-01.acme.us
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
,Your network consists of routers and switches, as well as a variety of other network devices. You are
configuring a wireless router, as shown in Figure 1-1, and need to allow network management traffic
through. Which protocol should be removed from the blocked list?
A. SMTP
B. SNMP
C. IKE
D. None - ANSWER✔✔-B
Which protocol suite uses 128-bit IP addresses?
A. IPv4
B. IPv5
C. IPv6
D. Network interface cards - ANSWER✔✔-C
Your newly configured SMTP mail server is not receiving mail from the Internet. You realize you
did not configure any DNS records for SMTP mail transfer. Which type of DNS resource record
must you create?
A. CNAME
B. MX
C. PTR
D. A - ANSWER✔✔-B
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 3
, While troubleshooting connectivity to your remote file server, you realize that a firewall is
preventing you from pinging the server. Which type of firewall rule should you create to allow ping
traffic?
A. UDP
B. IGMP
C. TCP
D. ICMP - ANSWER✔✔-D
199.126.19.71 is an example of which type of address?
A. IPv4
B. Port
C. IPv6
D. MAC - ANSWER✔✔-A
Your Linux virtual file server is running out of disk space. It has been decided that a network
storage appliance on a dedicated TCP/IP network will provide disk space to your file server. Which
type of SAN disk access protocol will be used by the file server?
A. Fibre Channel SAN
B. SMB
C. iSCSI
D. TCP/IP - ANSWER✔✔-C
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 4
