ACTUAL 2026/2027 TEST BANK PRACTICE QUESTIONS AND
STUDY GUIDE ACCURATE EXAM COMPLETE APPROVED
QUESTIONS WITH WELL ELABORATED SOLUTIONS AND
DETAILED RATIONALES (100% CORRECT VERIFIED ANSWERS)
CURRENTLY UPDATED VERSION 2026 EDITION |GUARANTEED
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Question 1
A company wants to deploy 3CX on a Debian-based virtual machine
with 500 extensions and expects peak concurrent calls of 150. Which
minimum hardware specification meets 3CX recommendations for
this deployment?
A. 2 vCPU, 4 GB RAM, 50 GB storage
B. 4 vCPU, 8 GB RAM, 100 GB SSD storage
C. 8 vCPU, 16 GB RAM, 500 GB HDD storage
D. 1 vCPU, 2 GB RAM, 20 GB storage
Correct Answer: B
Rationale: 3CX recommends 4 vCPU and 8 GB RAM for
deployments supporting 250-1,000 extensions with up to 150
,concurrent calls. SSD storage is strongly recommended for optimal
I/O performance, particularly for call recording and database
operations. The 100 GB capacity accommodates the operating
system, 3CX installation, call recordings, and voicemail storage
for this scale.
Question 2
Which 3CX license tier includes the Call Flow Designer (CFD) and
advanced queue strategies such as weighted and longest waiting?
A. Standard
B. Pro and Enterprise
C. Standard and Pro only
D. Enterprise only
Correct Answer: B
Rationale: The Call Flow Designer and advanced queue strategies
(weighted, longest waiting, priority) are available in both Pro and
Enterprise licenses. The Standard license supports basic call
queues with ring-all and hunt strategies but does not include CFD
or advanced queue management features. Enterprise adds multi-
tenant capabilities and advanced reporting beyond Pro.
,Question 3
A company is migrating from an on-premise Windows-based 3CX
V18 to a cloud-hosted Debian V20 installation. Which migration
path is officially supported?
A. Direct in-place upgrade from Windows V18 to Debian V20
B. Backup the V18 Windows configuration, install V20 on Debian,
and restore the backup during the new installation wizard
C. Export only extensions via CSV and manually recreate all settings
D. Windows V18 cannot be migrated; only fresh installations are
possible
Correct Answer: B
Rationale: 3CX supports cross-platform migration through its
backup and restore mechanism. The administrator performs a full
backup of the existing Windows V18 installation, deploys a new
Debian V20 instance, and selects "Restore Backup" during the
initial configuration wizard. This preserves all extensions, trunks,
rules, and settings while upgrading to the latest version and
platform.
Question 4
, Which operating system is the recommended and primary platform
for new 3CX V20 deployments?
A. Windows Server 2019
B. Ubuntu 22.04 LTS
C. Debian 12 (Bookworm)
D. CentOS 8
Correct Answer: C
Rationale: 3CX V20 and later versions are officially supported on
Debian 12 (Bookworm) as the primary and recommended
operating system. Windows installations are supported for legacy
environments but are no longer the preferred platform. Debian
provides superior stability, security updates, and performance
characteristics for VoIP workloads.
Question 5
A multi-tenant 3CX deployment requires separate management
domains for different clients with isolated billing and reporting.
Which license is required?
A. Standard