Free HPE3-U01: Aruba Certified Network Technician Exam(ACNT) Exam Questions and Answers
Aruba Certified Network Technician Exam(ACNT) is exam HPE3-U01, part of HPE Certification and Learning from Hewlett Packard Enterprise. HPE exam codes carry the delivery method in the digit and the technology in the letter that follows: HPE0 exams are proctored and written, HPE2 are web-based, HPE6 cover Aruba networking and HPE7 are comprehensive exams, while S is compute, J is storage, V is virtualisation and cloud, G is GreenLake and A is Aruba. Question counts, durations and pass marks are set per exam and printed on each datasheet rather than shared across the programme.
Candidates comparing HPE3-U01 exam dumps, ExamTopics and other HPE3-U01 practice tests use this page for the answers and explanations behind each question. Download the free HPE3-U01 PDF, then sit the timed HPE3-U01 exam simulation before booking with HP.
Last updated: November 6, 2026
- Exam code
- HPE3-U01
- Provider
- HP
- Questions in our bank
- 1000+
- Free to read
- First 10, with answers
- Our test mode duration & pass mark
- 130 mins · 70%
- Verified answers
- Reviewed weekly
Recommended: Switch to Test Mode to start a practice test that simulates the real exam experience.
Question #1
Which network medium carries data as pulses of light and is not affected by electromagnetic interference?
Correct answer: A
Explanation
Fiber-optic cable transmits light through glass or plastic strands, so electrical noise from motors or power lines does not affect the signal. Copper media, including shielded twisted-pair and coaxial cable, carry electrical signals and can still be affected by interference to some degree.
Continue with HPE3-U01: Aruba Certified Network Technician Exam(ACNT)
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in HPE3-U01: Aruba Certified Network Technician Exam(ACNT), the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #2
A client opens a TCP connection to a web server on port 443 and sends a segment with the SYN flag set and sequence number 1000. The server accepts the connection. Which segment does the server send in reply?
Correct answer: A
Explanation
The second step of the three-way handshake is a SYN-ACK. The server sets both flags and acknowledges the client's initial sequence number plus one, here 1001, because the SYN consumes one sequence number. The client then completes the handshake with an ACK.
Continue with HPE3-U01: Aruba Certified Network Technician Exam(ACNT)
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in HPE3-U01: Aruba Certified Network Technician Exam(ACNT), the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #3
Which IEEE 802.11 amendment is marketed by the Wi-Fi Alliance as Wi-Fi 5?
Correct answer: B
Explanation
802.11ac is Wi-Fi 5 and operates in the 5 GHz band. 802.11n is Wi-Fi 4, and 802.11ax is Wi-Fi 6, which also covers 2.4 GHz. 802.11g is an older 2.4 GHz amendment with no Wi-Fi generation number.
Continue with HPE3-U01: Aruba Certified Network Technician Exam(ACNT)
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in HPE3-U01: Aruba Certified Network Technician Exam(ACNT), the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #4
Which protocol do network devices use to advertise their identity and capabilities to directly connected neighbors at Layer 2?
Correct answer: D
Explanation
LLDP is a vendor-neutral Layer 2 protocol that sends advertisements with device name, port and capabilities to directly connected neighbors. ARP maps IP addresses to MAC addresses, ICMP reports errors and tests reachability, and DHCP assigns IP configuration.
Continue with HPE3-U01: Aruba Certified Network Technician Exam(ACNT)
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in HPE3-U01: Aruba Certified Network Technician Exam(ACNT), the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #5
A network uses the subnet 172.16.40.0/21. Which two addresses are valid host addresses in this subnet? (Select two.)
Select 2 answers.
Correct answer: B, C
Explanation
A /21 mask is 255.255.248.0, so the subnet spans 172.16.40.0 to 172.16.47.255 with block size 8 in the third octet. 172.16.41.255 and 172.16.44.10 fall inside the range and are neither the network nor the broadcast address. 172.16.47.255 is the broadcast address, and 172.16.39.254 belongs to the previous subnet.
Continue with HPE3-U01: Aruba Certified Network Technician Exam(ACNT)
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in HPE3-U01: Aruba Certified Network Technician Exam(ACNT), the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #6
What is the destination MAC address of an Ethernet broadcast frame?
Correct answer: D
Explanation
A Layer 2 broadcast uses the destination MAC address ff:ff:ff:ff:ff:ff, so every device in the broadcast domain processes the frame. The 01:00:5e and 33:33 prefixes are used for IPv4 and IPv6 multicast frames.
Continue with HPE3-U01: Aruba Certified Network Technician Exam(ACNT)
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in HPE3-U01: Aruba Certified Network Technician Exam(ACNT), the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #7
An administrator wants to monitor and configure APs and switches at many branch sites from one browser interface, without installing a management server in any data center. Which solution meets this requirement?
Correct answer: A
Explanation
HPE Aruba Networking Central is a cloud-based platform that manages devices across many sites from one interface. Central On-Prem requires a server deployed on premises. The AOS-CX WebUI and an Instant AP interface manage only a single switch or a single AP cluster.
Continue with HPE3-U01: Aruba Certified Network Technician Exam(ACNT)
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in HPE3-U01: Aruba Certified Network Technician Exam(ACNT), the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #8
Which two devices forward frames based on the destination MAC address? (Select two.)
Select 2 answers.
Correct answer: A, C
Explanation
Layer 2 switches and bridges learn source MAC addresses and use a MAC table to forward frames to the destination port. A hub repeats signals out all ports without examining addresses, and a router forwards packets based on destination IP address.
Continue with HPE3-U01: Aruba Certified Network Technician Exam(ACNT)
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in HPE3-U01: Aruba Certified Network Technician Exam(ACNT), the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #9
Which two protocols use TCP as their transport protocol? (Select two.)
Select 2 answers.
Correct answer: B, D
Explanation
SSH (port 22) and FTP (port 21 for control) rely on TCP for reliable, connection-oriented delivery. DHCP uses UDP ports 67 and 68, and ICMP is carried directly in IP packets without a TCP or UDP header.
Continue with HPE3-U01: Aruba Certified Network Technician Exam(ACNT)
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in HPE3-U01: Aruba Certified Network Technician Exam(ACNT), the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #10
At which layer of the OSI model does the sender encapsulate a packet into a frame by adding a header and a trailer?
Correct answer: B
Explanation
The Data Link layer adds a header with source and destination MAC addresses and a trailer containing the frame check sequence, producing a frame. The Network layer only adds an IP header to create a packet, and the Transport layer adds a TCP or UDP header to create a segment or datagram. The Physical layer transmits bits and does not encapsulate.
Continue with HPE3-U01: Aruba Certified Network Technician Exam(ACNT)
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in HPE3-U01: Aruba Certified Network Technician Exam(ACNT), the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Discussion
Explain your reasoning, not just the letterOther HP certifications
- HPE0-V14: Building HPE Hybrid IT Solutions (opens in a new tab)
- HPE0-J68: HPE Storage Solutions (opens in a new tab)
- HPE6-A45: Implementing Aruba Campus Switching solutions (opens in a new tab)
- HPE0-S57: Designing HPE Hybrid IT Solutions (opens in a new tab)
- HPE6-A70: Aruba Certified Mobility Associate Exam (opens in a new tab)
- HPE6-A73: Aruba Certified Switching Professional (opens in a new tab)
- HPE2-T36: Using HPE OneView (opens in a new tab)
- HPE6-A72: Aruba Certified Switching Associate (opens in a new tab)
- HPE0-V27: HPE ASE - Edge-to-Cloud Architect (opens in a new tab)
- HPE6-A41: Applying Aruba Switching Fundamentals for Mobility (ACSA) (opens in a new tab)
- HP0-Y52: Applying HP FlexNetwork Fundamentals (opens in a new tab)
- HPE2-T37: Using HPE OneView (opens in a new tab)
Reviews
Write a review★★★★★
Exam Practice is worth every penny. The mock exams are realistic, and the feedback helped me focus on key areas.
Amit SharmaVerified buyer
★★★★★
I highly recommend Exam Practice. The feedback after each test helped me improve significantly, and I passed my exams easily.
Oscar NyströmVerified buyer
★★★★★
This platform is a lifesaver. The practice questions and explanations are so detailed. It’s the best study tool I’ve ever used.
Hannah SmithVerified buyer
FAQ
Learn More: https://certification-learning.hpe.com/tr/certifications
- Q1: What is the HPE3-U01: Aruba Certified Network Technician Exam(ACNT) exam?
- A: HPE3-U01: Aruba Certified Network Technician Exam(ACNT) is a HP certification exam. Judging by the questions in our bank, it concentrates on pc-2, arubaos-cx, pc-1, switch and collisions.
- Q2: What topics does the HPE3-U01: Aruba Certified Network Technician Exam(ACNT) exam cover?
- A: Questions in our HPE3-U01: Aruba Certified Network Technician Exam(ACNT) bank cluster around pc-2, arubaos-cx, pc-1, switch, collisions, equivalent, aruba and identifier. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for HPE3-U01: Aruba Certified Network Technician Exam(ACNT)?
- A: Work through the HPE3-U01: Aruba Certified Network Technician Exam(ACNT) practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q4: Are these real HPE3-U01: Aruba Certified Network Technician Exam(ACNT) exam questions?
- A: They are drawn from officially released past questions and from community members who have sat HPE3-U01: Aruba Certified Network Technician Exam(ACNT). Answers are verified and updated weekly.
- Q5: Where do I register for the HPE3-U01: Aruba Certified Network Technician Exam(ACNT) exam?
- A: Register through HP directly. Exampractice is not affiliated with HP and does not administer the exam.
- Q6: Is there a free HPE3-U01: Aruba Certified Network Technician Exam(ACNT) sample?
- A: Yes. Every HPE3-U01: Aruba Certified Network Technician Exam(ACNT) page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
- Q7: What are HP Certification Exams?
- A: HP (Hewlett-Packard) Certification Exams validate your expertise in using and managing HP’s hardware, software, and solutions, including servers, storage, networking, and printing technologies. These certifications demonstrate your proficiency in deploying, configuring, and optimizing HP products to support enterprise IT infrastructure.
- Q8: Why should I pursue HP Certification?
- A: HP Certification enhances your professional credibility, showcasing your skills and knowledge in HP technologies. This can lead to better job opportunities, higher salaries, and career advancement in IT, networking, and infrastructure management roles.
- Q9: What are the benefits of HP Certification?
- A: Benefits include recognition as a certified HP professional, improved job performance, access to exclusive resources, continuing education opportunities, and staying current with the latest HP technologies and best practices.
- Q10: Who should take HP Certification Exams?
- A: IT professionals, system administrators, network engineers, and anyone involved in managing and implementing HP solutions should consider these certifications to validate their expertise and advance their careers.
- Q11: What types of HP Certification Exams are available?
- A: HP offers various certification paths, including:
- Q12: How do I prepare for HP Certification Exams?
- A: Preparation can include official HP training courses, study guides, practice exams, online tutorials, and hands-on experience with HP products and solutions.
- Q13: Where can I take HP Certification Exams?
- A: HP Certification Exams can be taken at authorized Pearson VUE testing centers worldwide, providing flexibility to fit your schedule and location.
- Q14: How do HP Certifications impact my career?
- A: HP Certifications significantly boost your career by demonstrating your expertise to employers, making you a more competitive candidate for advanced roles and promotions in IT and infrastructure management.
- Q15: Are there any prerequisites for HP Certification Exams?
- A: Some exams may have prerequisites, such as foundational knowledge or prior experience with HP products. Check the specific requirements for each certification path on the HP certification website.
- Q16: How often do I need to recertify for HP Certifications?
- A: HP Certifications typically require recertification every three years to ensure that certified professionals stay updated with the latest technologies and industry practices.