HP hpe3-u01 practice test

Exam Title: Aruba Certified Network Technician Exam

Last update: Nov 27 ,2025
Question 1

Which organization provides certifications that ensure interoperability between WLAN vendors?

  • A. Institute of Electrical and Electronics Engineers
  • B. Federal Communications Commission
  • C. Wi-Fi Alliance
  • D. Internet Engineering Task Force
Answer:

C


Explanation:
https://www.wi-fi.org/certification

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Question 2

Which Wi-Fi technology assists with data privacy on open networks?

  • A. Simultaneous Authentications of Equals (5AE)
  • B. Opportunistic Wireless Encryption (OWE)
  • C. Commercial National Security Algorithm (CNSA)
  • D. Wi-Fi Protected Access 2 (WPA2)
Answer:

D


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Question 3

Which unit of measurement is recommended for expressing radio frequency power due to its
logarithmic nature?

  • A. lumens
  • B. decibel relative to isotrope (dBi)
  • C. milliwatt (mW)
  • D. decibel relative to milliwatt (dBm)
Answer:

D


Explanation:
Decibel (dB)
Decibel is a logarithmic unit of measure used to express the ratio of two values of the same measure.
This unit is not included to the System International of units (SI), but it is widely used in
communication systems and many other technical fields, as it allows to compare two values of any
nature, provided that these values are expressed in the same unit.
Decibel is a decile of the main, larger unit — Bel. Bel is a common logarithm of the ratio of two
energies. But in practice Bel was a far too big value, therefore its tenth part is used – decibel.
The logarithmic method of presentation of numbers often can be very useful, as it allows to replace
multiplication with addition, division with subtraction, raising to power with multiplication, and
extracting a root with the division.
What is measured in dB in the MRFC:
Gain constant
Sound level
Signal/noise ratio
Signal attenuation
https://en.cyclopedia.ifcg.ru/wiki/Radiofrequency_characteristics

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Question 4

What are characteristics of Aruba Central? (Select two.)

  • A. It must be deployed as an on-premises server.
  • B. It manages networking equipment using SNMP.
  • C. It manages networking equipment using HTTPs.
  • D. It can manage third-party networking equipment.
  • E. It is considered cloud-based network management.
Answer:

DE


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Question 5

What are the key differences between L2 switches and routers? (Select two.)

  • A. Switches build an ARP table, while routers build a port table.
  • B. Switches build a MAC table while routers build a routing table.
  • C. Switches are considered L2 devices, while routers are L4.
  • D. Switches offer a considerably higher port density than routers.
  • E. Routers offer a considerably higher port density than switches.
Answer:

BD


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Question 6

Which command should you enter to access the second interface of a one-rack-unit standalone
ArubaOS-CX switch?

  • A. Interface 0/0/2
  • B. Interface 1/0/2
  • C. Interface 1/1/2
  • D. Interface 0/1/2
Answer:

C


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Question 7

Which command should you enter to access the second interface of the third slot in a modular
ArubaOS-CX switch?

  • A. Interface 0/3/2
  • B. Interface 0/2/3
  • C. Interface 1/3/2
  • D. Interface 3/1/2
Answer:

D


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Question 8

Which dual-band IEEE WLAN standard provides up to 4.8 Gbps of theoretical data rate?

  • A. 802.11 ac
  • B. 802.1 lax
  • C. 802.1 In
  • D. 802.11 be
Answer:

D


Explanation:
https://ieeexplore.ieee.org/iel7/6287639/8948470/09090146.pdf

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Question 9

What is a true statement about wireless communications using Wi-Fi?

  • A. Amplitude, phase, and frequency of radio waves are modulated to transmit data
  • B. Wireless communications have a maximum range of 10 meters (30 feet)
  • C. Amplitude, phase, and frequency of radio waves are modulated to increase range
  • D. Wireless communications have a minimum range of 10 meters (30 feet)
Answer:

C


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Question 10

Which condition allows 5Ghz channels to avoid Adjacent Channel Interference?

  • A. transmit at 40 MHz bandwidth
  • B. transmit at high power levels
  • C. transmit at low power levels
  • D. transmit at 20 MHz bandwidth
Answer:

A


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