OSSF Installer 1 License Exam – 100-Question Practice Test
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1. A technician is deploying OSSF Installer 1 on a new server that will host multiple virtual
machines. The hypervisor requires that the installer's core services have direct access to the
physical hardware without virtualization overhead. Which CPU feature must be enabled in the
BIOS to ensure the installer's services can utilize hardware virtualization extensions?
A. Enable Intel VT-x or AMD-V, and also enable VT-d for direct I/O access
B. Disable Intel VT-x and rely on software emulation for stability
C. Enable Hyper-Threading to improve multi-threading performance
D. Set the CPU power management to 'Performance' mode to avoid throttling
Answer: A. Enable Intel VT-x or AMD-V, and also enable VT-d for direct I/O access
2. During the installation of OSSF Installer 1 on a system with 64 GB of RAM, the installer
reports that only 32 GB is recognized. The system has four 16 GB DIMMs installed in the
correct slots and passes POST. Which configuration is MOST likely causing the unrecognized
memory?
A. Memory remapping is disabled in the BIOS, limiting the RAM to 32 GB
B. The DIMMs are incorrectly seated, with two slots not making contact
C. The operating system is 32-bit and cannot address more than 4 GB
D. The memory controller is set to single-channel mode, halving capacity
Answer: A. Memory remapping is disabled in the BIOS, limiting the RAM to 32 GB
3. A storage controller uses RAID 5 with four 2 TB drives. A drive fails and is replaced. The
installer is rebuilding the array, but the rebuild speed is slower than expected and the system
performance is degraded. Which hardware factor is the PRIMARY cause of the slowdown
during parity rebuild?
A. The storage controller lacks a dedicated cache battery to accelerate writes
B. The RAID controller is using a low-end processor that cannot handle the calculations
C. The rebuild process reads from all remaining drives, saturating the I/O bus
D. The replacement drive is not identical in speed to the others
Answer: C. The rebuild process reads from all remaining drives, saturating the I/O bus
4. An organization plans to roll out OSSF Installer 1 to 500 workstations. They need a solution
that ensures every workstation boots from the same network image, allowing for centralized
updates and rapid deployment. Which network configuration BEST supports this requirement?
A. Configure PXE boot with a multicast deployment server
B. Set up each workstation to boot from a local USB drive
C. Use a WDS server but require manual IP configuration per client
D. Implement a DHCP server with options pointing to a boot server for unicast images
Answer: A. Configure PXE boot with a multicast deployment server
5. After installing OSSF Installer 1, a network administrator notices that the DHCP service is not
handing out addresses to clients on the same VLAN. The DHCP server is configured with a
scope for that subnet, and the server's IP is correctly specified in the router's DHCP relay.
, Which service must be running on the server to accept relayed requests?
A. DHCP relay agent on the server
B. The DHCP service must be bound to the interface that receives relayed traffic
C. The IP Helper address must point to the server's IP on the router
D. The firewall must allow UDP ports 67 and 68 through
Answer: B. The DHCP service must be bound to the interface that receives relayed traffic
6. An OSSF Installer 1 deployment uses a local DNS server. A workstation cannot resolve
internal hostnames, but it can resolve external names. The DNS server is configured with an
internal zone and forwards external queries to an ISP DNS. What is the MOST likely reason for
the failure?
A. The workstation's DNS suffix is not set to the internal domain
B. The DNS server's firewall is blocking outgoing queries to the ISP
C. The internal zone is not configured with an SOA record
D. The workstation's DNS server IP is incorrect
Answer: A. The workstation's DNS suffix is not set to the internal domain
7. A technician is configuring a network service on OSSF Installer 1 that requires clients to find
the service by name without modification to client hosts files. The service will be provided via
multiple servers for high availability. Which DNS configuration BEST supports this?
A. Create an A record for each server and a round-robin DNS entry for the service name
B. Use a single A record pointing to the primary server only
C. Configure CNAME records for each server pointing to the service name
D. Set up a wildcard DNS record that resolves to a single IP
Answer: A. Create an A record for each server and a round-robin DNS entry for the service
name
8. A newly installed OSSF Installer 1 server is configured with static IP 192.168.1.10/24. A client
on the same subnet can ping the server but cannot access its web service. The web service
listens on port 8080. Which troubleshooting step should be performed FIRST?
A. Use netstat to verify that the web service is listening on 0.0.0.0:8080
B. Check the server's firewall rules for incoming port 8080
C. Verify that the client can reach the gateway
D. Restart the web service
Answer: A. Use netstat to verify that the web service is listening on 0.0.0.0:8080
9. An administrator runs a backup script on OSSF Installer 1 that copies data to a NAS. The
script runs successfully at 2 AM, but the backup files are corrupt. The system logs show no
errors during the copy. Which maintenance task should be scheduled to prevent corruption?
A. Run a filesystem check on the source and destination volumes weekly
B. Increase the backup script's timeout to allow slower NAS transfer
C. Ensure that no other processes are writing to the source data during backup
D. Replace the network cables connecting the server to the NAS
Answer: A. Run a filesystem check on the source and destination volumes weekly
10. A server running OSSF Installer 1 unexpectedly rebooted and is now stuck in a boot loop
before the OS loads. The administrator suspects a corrupted boot sector. Which maintenance
Latest 2026 Edition | Questions, Answers, and Explanations|
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1. A technician is deploying OSSF Installer 1 on a new server that will host multiple virtual
machines. The hypervisor requires that the installer's core services have direct access to the
physical hardware without virtualization overhead. Which CPU feature must be enabled in the
BIOS to ensure the installer's services can utilize hardware virtualization extensions?
A. Enable Intel VT-x or AMD-V, and also enable VT-d for direct I/O access
B. Disable Intel VT-x and rely on software emulation for stability
C. Enable Hyper-Threading to improve multi-threading performance
D. Set the CPU power management to 'Performance' mode to avoid throttling
Answer: A. Enable Intel VT-x or AMD-V, and also enable VT-d for direct I/O access
2. During the installation of OSSF Installer 1 on a system with 64 GB of RAM, the installer
reports that only 32 GB is recognized. The system has four 16 GB DIMMs installed in the
correct slots and passes POST. Which configuration is MOST likely causing the unrecognized
memory?
A. Memory remapping is disabled in the BIOS, limiting the RAM to 32 GB
B. The DIMMs are incorrectly seated, with two slots not making contact
C. The operating system is 32-bit and cannot address more than 4 GB
D. The memory controller is set to single-channel mode, halving capacity
Answer: A. Memory remapping is disabled in the BIOS, limiting the RAM to 32 GB
3. A storage controller uses RAID 5 with four 2 TB drives. A drive fails and is replaced. The
installer is rebuilding the array, but the rebuild speed is slower than expected and the system
performance is degraded. Which hardware factor is the PRIMARY cause of the slowdown
during parity rebuild?
A. The storage controller lacks a dedicated cache battery to accelerate writes
B. The RAID controller is using a low-end processor that cannot handle the calculations
C. The rebuild process reads from all remaining drives, saturating the I/O bus
D. The replacement drive is not identical in speed to the others
Answer: C. The rebuild process reads from all remaining drives, saturating the I/O bus
4. An organization plans to roll out OSSF Installer 1 to 500 workstations. They need a solution
that ensures every workstation boots from the same network image, allowing for centralized
updates and rapid deployment. Which network configuration BEST supports this requirement?
A. Configure PXE boot with a multicast deployment server
B. Set up each workstation to boot from a local USB drive
C. Use a WDS server but require manual IP configuration per client
D. Implement a DHCP server with options pointing to a boot server for unicast images
Answer: A. Configure PXE boot with a multicast deployment server
5. After installing OSSF Installer 1, a network administrator notices that the DHCP service is not
handing out addresses to clients on the same VLAN. The DHCP server is configured with a
scope for that subnet, and the server's IP is correctly specified in the router's DHCP relay.
, Which service must be running on the server to accept relayed requests?
A. DHCP relay agent on the server
B. The DHCP service must be bound to the interface that receives relayed traffic
C. The IP Helper address must point to the server's IP on the router
D. The firewall must allow UDP ports 67 and 68 through
Answer: B. The DHCP service must be bound to the interface that receives relayed traffic
6. An OSSF Installer 1 deployment uses a local DNS server. A workstation cannot resolve
internal hostnames, but it can resolve external names. The DNS server is configured with an
internal zone and forwards external queries to an ISP DNS. What is the MOST likely reason for
the failure?
A. The workstation's DNS suffix is not set to the internal domain
B. The DNS server's firewall is blocking outgoing queries to the ISP
C. The internal zone is not configured with an SOA record
D. The workstation's DNS server IP is incorrect
Answer: A. The workstation's DNS suffix is not set to the internal domain
7. A technician is configuring a network service on OSSF Installer 1 that requires clients to find
the service by name without modification to client hosts files. The service will be provided via
multiple servers for high availability. Which DNS configuration BEST supports this?
A. Create an A record for each server and a round-robin DNS entry for the service name
B. Use a single A record pointing to the primary server only
C. Configure CNAME records for each server pointing to the service name
D. Set up a wildcard DNS record that resolves to a single IP
Answer: A. Create an A record for each server and a round-robin DNS entry for the service
name
8. A newly installed OSSF Installer 1 server is configured with static IP 192.168.1.10/24. A client
on the same subnet can ping the server but cannot access its web service. The web service
listens on port 8080. Which troubleshooting step should be performed FIRST?
A. Use netstat to verify that the web service is listening on 0.0.0.0:8080
B. Check the server's firewall rules for incoming port 8080
C. Verify that the client can reach the gateway
D. Restart the web service
Answer: A. Use netstat to verify that the web service is listening on 0.0.0.0:8080
9. An administrator runs a backup script on OSSF Installer 1 that copies data to a NAS. The
script runs successfully at 2 AM, but the backup files are corrupt. The system logs show no
errors during the copy. Which maintenance task should be scheduled to prevent corruption?
A. Run a filesystem check on the source and destination volumes weekly
B. Increase the backup script's timeout to allow slower NAS transfer
C. Ensure that no other processes are writing to the source data during backup
D. Replace the network cables connecting the server to the NAS
Answer: A. Run a filesystem check on the source and destination volumes weekly
10. A server running OSSF Installer 1 unexpectedly rebooted and is now stuck in a boot loop
before the OS loads. The administrator suspects a corrupted boot sector. Which maintenance
