2H0_25 Practice Tests - Omnissa Certified Engineer (OCE) Horizon

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Exam : 2H0_25
Title :
https://www.passcert.com/2H0_25.html
Horizon Engineer - 2025
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1.An external user connects to a Horizon 8 desktop through Unified Access Gateway (UAG).
Authentication succeeds and the assigned desktop appears, but launching the desktop fails. This
deployment deliberately uses Blast over TCP only; UDP is disabled for this test. The desktop is ready, its
Blast listener is running, and an internal launch succeeds. The engineer may request one narrowly
scoped firewall correction.
Which correction is best supported by the observations?
Select ONE answer.
Observation during the same launch attempt Result
Client to UAG, TCP 443 Allowed; authentication completes
UAG to Connection Server, TCP 443 Allowed
UAG to the assigned desktop, TCP 22443 Dropped by the internal firewall
Internal client to the same desktop, TCP 22443 Allowed; desktop launches
A. Allow client-to-UAG TCP 22443 for the external launch.
B. Allow UAG-to-desktop UDP 4172 for the external launch.
C. Allow UAG-to-desktop TCP 22443 for the assigned desktop.
D. Allow UAG-to-Connection-Server TCP 8443 for the launch.
Answer: C
Explanation:
C is correct: the observed drop is on the UAG-to-Agent TCP Blast path. Authentication success does not
prove that the display connection can reach the Agent. After the approved rule change, repeat the same
launch, confirm that this flow is allowed, and verify desktop display. Keep the rule limited to the required
sources and destinations; restore the previous rule if validation fails or unexpected access is introduced.
2.During maintenance of an automated instant-clone RDSH farm in Horizon 8 2206, an administrator has
selected Stop at first error. The reviewed records show that a new clone fails during customization, while
other clones continue to be provisioned and customized. No provisioning-stage error is recorded. The
administrator asks whether the continued work proves that the option was ignored.
Which explanation is correct?
Select ONE answer.
A. The option stops work for provisioning errors; a customization error does not stop other clones.
B. The option stops work for either error type, so continued work proves it was ignored.
C. The option stops work only after all RDS hosts have completed the maintenance cycle.
D. The option stops work only for manual farms, so it cannot affect this automated farm.
Answer: A
Explanation:
A is correct. The option applies to provisioning errors; customization failures do not halt provisioning and
customization of other clones. The observations therefore do not prove that the option was ignored. The
customization failure still needs investigation; the explanation does not establish its root cause or claim
that the affected clone is healthy.
3.A Horizon 8 engineer investigates poor Blast Extreme interaction through a required TCP-based SSL
VPN. The VPN encapsulates the client's Blast UDP traffic inside TCP. Blast establishes its UDP session
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successfully, but the session becomes sluggish during normal work. The same desktop, client,
resolution, and workload perform well on an approved direct path. The VPN cannot be replaced during
this investigation.
Which controlled test should the engineer perform first?
Select ONE answer.
Matched test Direct path Required SSL VPN path
Agent CPU and memory pressure Low Low
Session starts successfully Yes Yes
Initial Blast transport UDP UDP encapsulated in TCP
Interactive response Responsive Repeated pauses
A. Raise the Blast bandwidth ceiling while retaining UDP and the same VPN path.
B. Lower the display image quality while retaining UDP and the same VPN path.
C. Add desktop vCPUs while retaining UDP and the same VPN path.
D. Use Blast TCP for a matched test through the same VPN, without changing other settings.
Answer: D
Explanation:
D is correct. A TCP-based VPN that repackages UDP is a documented case for testing Blast TCP.
Automatic fallback after an initial UDP connection failure does not resolve this scenario: the UDP session
already starts successfully. Compare responsiveness and resource use with the same workload and
VPN path. Make the change only for the approved test cohort, and restore the previous transport setting
if the result is worse or fails the acceptance criteria.
4.An engineer designs external access to Horizon 8 through two Unified Access Gateway appliances.
The security requirement is that UAG itself validates the client's certificate during client certificate
authentication. This design does not use an identity-bridging or header-based authentication alternative.
The engineer must retain load balancing and choose a supported TLS topology.
Which design meets the requirement?
Select ONE answer.
A. Terminate client TLS at the load balancer and use plaintext HTTP to the selected UAG.
B. Pass client TLS through a layer-4 TCP load balancer and terminate it at the selected UAG.
C. Terminate client TLS at the load balancer and re-encrypt to UAG using the same server certificate.
D. Terminate client TLS at the load balancer and re-encrypt to UAG using different server certificates.
Answer: B
Explanation:
B is correct: direct client certificate authentication requires the client TLS connection to reach UAG
without termination at the load balancer. Validate the approved design with a trusted test client certificate
and a rejected certificate, and verify TLS termination and normal access. Roll back the test topology if
authentication or access validation fails.
5.A Horizon engineer must prepare UAG-A (Unified Access Gateway 2412) for maintenance while UAG-
B remains available. New sessions must stop arriving at UAG-A, and existing sessions must not be
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forcibly disconnected. UAG-B has verified spare capacity and working session affinity. The load balancer
uses HTTPS GET /favicon.ico, treats only HTTP 200 as healthy, and does not close established
connections when a health check fails. The existing sessions on UAG-A are expected to end naturally
within one hour, within the applicable session-retention limit.
Which TWO actions together meet the maintenance requirements?
Select TWO answers.
Synthetic maintenance observation, not a product log format:
2026-10-10 01:00 UTC UAG-A: active sessions 23; health response HTTP 200
2026-10-10 01:00 UTC UAG-B: health response HTTP 200; spare capacity verified
Maintenance prerequisite: confirm UAG-A active sessions = 0 before power-off.
A. Enable Quiesce Mode on UAG-A and verify that its HTTP 503 health response removes it from new-
session selection.
B. Keep UAG-A eligible for new sessions until its active-session count happens to reach zero.
C. Replace the HTTP health check with a TCP-port check so that UAG-A remains eligible while
quiesced.
D. Monitor UAG-A until its active-session count reaches zero and verify UAG-B service before powering
off UAG-A.
E. Power off UAG-A as soon as its health response changes, relying on UAG-B capacity to preserve
active sessions.
Answer: AD
Explanation:
A and D are correct together. Quiescing makes the health check report HTTP 503, preventing new
selection under the stated policy; the engineer then verifies natural session drain before power-off. A
alone does not establish that existing sessions have ended, and D alone does not prevent new arrivals.
Observe the retention limit and reschedule rather than force disconnection if sessions do not drain in
time. Before power-off, a failed drain or peer-service check calls for postponing maintenance and
restoring normal eligibility after validation.
6.A Horizon 8 design uses nonpersistent Windows desktops that are replaced after logout. IT must
deliver the same approved application binaries to a department without putting them in every desktop
image. Each user's selected application preferences must follow that user to the next fresh desktop.
Users must not install their own applications, and the design excludes Writable Volumes and whole-
profile roaming. App Volumes and Dynamic Environment Manager (DEM) are available, licensed, andcompatible with the chosen desktops and applications.
Which TWO controls together meet the requirements?
Select TWO answers.
A. Assign the approved application through an App Volumes read-only package.
B. Use a user-installed-applications Writable Volume instead of the managed application package.
C. Use DEM Flex configuration files and profile archives to persist the required personal settings.
D. Save each user's current preferences only into the shared golden image.
E. Disable desktop replacement and keep each user's applications and settings only on a permanent
clone.
Answer: AC
Explanation:
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A and C address separate requirements: App Volumes supplies the managed application, while DEM
preserves selected personal settings independently of the disposable desktop. A alone does not provide
the required setting capture, and C does not deliver the application binaries. In a pilot, launch the
assigned application, change a captured preference, log out, and confirm that the application and
preference are available on a fresh desktop. Check that another user's settings remain separate.
Preserve the prior assignments and DEM configuration so the pilot can be reverted without deleting
archives.
7.An engineer is preparing a patched Windows golden image on vSphere for a Horizon 8 pilot
deployment. The application patch has been tested successfully on the golden VM, which is still running.
The pilot must use the patched image and a snapshot taken with the golden VM powered off. The
observations below are from the image-build record.
Which next action meets both requirements?
Select ONE answer.
Build record State
Snapshot BASE-01, taken before the patch Golden VM was powered off
Current golden VM Patch verified; VM powered on
New snapshot after successful patch validation Not yet created
A. Select BASE-01 for the pilot because its power state meets the snapshot requirement.
B. Shut down the tested golden VM, take a new named snapshot, and select that snapshot for the pilot.
C. Take a memory snapshot of the running golden VM and select it without shutting down the VM.
D. Select BASE-01 and rely on later changes to the running golden VM to update that existing snapshot.
Answer: B
Explanation:
B captures the tested patch in a new powered-off snapshot. Confirm the golden VM is off and record the
new snapshot identity before selecting it. Validate the patch and normal desktop behavior in the pilot
before expanding deployment. Retain the previous validated snapshot and deployment settings for
rollback; a snapshot name alone is not evidence of successful testing.
8.A company operates Horizon 8 in two geographically separate data centers. It requires a supported
architecture with a pod in each site and a federated desktop entitlement that can include pools from both
sites. Replication of user data and application state is addressed by a separate validated design.
Which proposal satisfies the Horizon topology requirement?
Select ONE answer.
A. Place replica Connection Servers from one pod in both geographic sites and treat that pod as the
federation.
B. Create separate pods and use a common DNS alias as the only mechanism for sharing user
entitlements.
C. Keep one pod in each site and copy only local desktop entitlements between the sites manually.
D. Keep each pod's Connection Servers site-local, join the pods with Cloud Pod Architecture, and
configure global entitlements.
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Answer: D
Explanation:
D keeps the pod boundary local to each site and uses Cloud Pod Architecture and global entitlements for
the requested federation. Validate federation membership, pool participation, entitlement access, and the
intended site-selection behavior before production use. Federation does not by itself replicate personal
data or guarantee continuation of an existing session after a site failure. Keep the approved previous
access design available while validating the change.
9.A Horizon 8 deployment uses DEM Horizon Smart Policies to deny USB redirection for external clients
and allow it for approved internal clients. Required agents, client-location reporting, and USB
components are verified. No conflicting policy is configured. The engineer observes that a fresh external
login applies the deny rule correctly, but an internal session retains its old setting after disconnecting and
reconnecting from an external client. No triggered task is configured for session reconnect.
Which targeted correction should the engineer test?
Select ONE answer.
Synthetic policy test record, not a product log format:
Internal login: location Internal; USB allowed as intended.
Reconnect from external client: location External; old USB policy remains.
Fresh external login: location External; USB denied as intended.
A. Create a reconnect-triggered user-environment refresh that reevaluates Horizon policies.
B. Remove the location condition and deny USB for every session, including approved internal sessions.
C. Refresh only printer mappings at reconnect and leave Horizon policies unchanged.
D. Change the external deny rule to allow USB because the same rule already works at fresh login.
Answer: A
Explanation:
A addresses reevaluation when the session context changes at reconnect. The successful fresh external
login and verified location narrow the issue to policy refresh, not a missing deny rule or unknown
location. Test a fresh internal login followed by an external reconnect and confirm that the intended
Horizon policy is reevaluated; also test the permitted internal case. Do not assume this proves every
USB device's runtime behavior. Preserve the earlier triggered-task configuration and restore it if
validation fails, while keeping the approved security control in place.