[Apr 18, 2024] Ultimate HPE3-U01 Guide to Prepare Free Latest HP Practice Tests Dumps
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HPE3-U01 exam is designed to help professionals gain a competitive edge in the industry and enhance their technical skills. A certified Aruba network technician can help organizations design, configure, and manage their wireless networks more effectively. Aruba Certified Network Technician Exam certification validates that an individual has the technical expertise required to configure, install, and maintain Aruba WLANs, making them a valuable asset to any organization.
NEW QUESTION # 36
What are characteristics of Aruba Central? (Select two.)
- A. It is considered cloud-based network management.
- B. It manages networking equipment using HTTPs.
- C. It must be deployed as an on-premises server.
- D. It can manage third-party networking equipment.
- E. It manages networking equipment using SNMP.
Answer: A,B
NEW QUESTION # 37
Which configurable switchport feature makes collisions impossible to occur?
- A. auto speed
- B. half-duplex
- C. VLANs
- D. full-duplex
Answer: D
Explanation:
Explanation
Full-duplex is a switchport feature that allows simultaneous transmission and reception of data on a link, without causing collisions. Collisions occur when two devices try to send data at the same time on a shared medium, such as a half-duplex link or a hub. Full-duplex eliminates the need for collision detection and avoidance mechanisms, such as CSMA/CD, and increases the effective bandwidth of the link. Full-duplex requires both ends of the link to support and be configured for full-duplex mode. If one end is configured for full-duplex and the other for half-duplex, the result is a duplex mismatch, which causes performance issues and errors. Auto speed is a switchport feature that allows the switch to negotiate the speed of the link with the connected device, such as 10 Mbps, 100 Mbps, or 1000 Mbps. VLANs are logical groups of devices that share the same broadcast domain, regardless of their physical location or connection. VLANs can reduce collisions by segmenting the network and limiting the scope of broadcasts. However, VLANs alone do not prevent collisions on a link, as they depend on the duplex mode of the switchport. Half-duplex is a switchport feature that allows only one direction of data transmission at a time on a link, either sending or receiving. Half-duplex requires collision detection and avoidance mechanisms, such as CSMA/CD, to coordinate the access to the shared medium. Half-duplex reduces the effective bandwidth of the link by half, as only one device can use the link at a time. Half-duplex can cause collisions if two devices try to send data at the same time on the same link. References:
* Aruba Certified Network Technician (ACNT) | HPE Aruba Networking
* Aruba Documentation Portal
* switch port collisions - Cisco Community
* Why is a switch port a collision domain? - Cisco Community
NEW QUESTION # 38
WhichOSImodel layer is in charge of creating data?
- A. Transport
- B. Physical
- C. Layer 4
- D. Layer 7
Answer: A
NEW QUESTION # 39
Refer to exhibit:
PC-1 is sending a packet to PC-2. What are the Layer 2 and Layer 3 source addresses of the message when it is received by PC-2? (Select two.)
- A. source IP is 10.2.1.10
- B. source IP is 10.2.2.1
- C. source MAC is 00:50:56:B1:94:9F
- D. source MAC is 90:20:C2:BC:2D:FD
- E. destination MAC is 88:77:24:97:A1:D2
Answer: A,D
Explanation:
Explanation
In the given network diagram, PC-1 is sending a packet to PC-2. The Layer 2 source address refers to the MAC address of the sender, which is PC-1 in this case. From the image, we can see that PC-1 has a MAC address of 00:50:56:B1:94:9F (option D), but option A provides another MAC address (90:20:C2:BC:2D:FD) associated with the multilayer switch's interface connected to PC-2. Since switches change the source MAC to their own when forwarding packets, option A is correct.
The Layer 3 source address refers to the IP address of the sender (PC-1). From the image, it's clear that PC-1 has an IP address of 10.2.1.10 (option C).
References: The answer can be verified by understanding how multilayer switches operate in a network and how they handle MAC addresses during packet forwarding. You can find more information about this topic in the following resources:
* Aruba Certified Network Technician (ACNT) | HPE Aruba Networking
* Education Services | HPE Aruba Networking
* Aruba Certified Network Technician University Promotion
NEW QUESTION # 40
Which accurately describes the 051 Model?
- A. It is a reference model that describes how data communications occur on a network.
- B. It is a reference model that describes data flow over the network using four layers.
- C. It is a reference model that is used to convert binary bits into analog signals.
- D. It is a reference model that explains how data is created by the application layer.
Answer: A
NEW QUESTION # 41
Which organization is in charge of determining the International Standards?
- A. Internet Engineering Task Force
- B. Wi-Fi Alliance
- C. Institute of Electrical and Electronics Engineers
- D. Federal Communications Commission
Answer: C
Explanation:
Explanation
The Institute of Electrical and Electronics Engineers (IEEE) is an organization that develops and publishes international standards for various fields of engineering, including electrical, electronic, computer, software, and telecommunications. IEEE standards are widely used and recognized by the industry, academia, and governments. IEEE standards cover topics such as wireless networking, Ethernet, power systems, smart grid, cybersecurity, robotics, biomedical engineering, and more. IEEE standards are developed by consensus among experts from different sectors and regions, and are reviewed and updated regularly to reflect the latest technologies and best practices. IEEE standards aim to promote innovation, interoperability, safety, reliability, and efficiency in engineering applications. References: IEEE Standards Association, IEEE - Wikipedia, IEEE Standards - Creative Safety Supply
NEW QUESTION # 42
What is a true statement about wireless communications using Wi-Fi?
- A. Wireless communications have a maximum range of 10 meters (30 feet)
- B. Wireless communications have a minimum range of 10 meters (30 feet)
- C. Amplitude, phase, and frequency of radio waves are modulated to increase range
- D. Amplitude, phase, and frequency of radio waves are modulated to transmit data
Answer: D
Explanation:
Explanation
Wi-Fi is a wireless networking protocol that uses radio waves to communicate data over the air. Radio waves are electromagnetic waves that have different characteristics depending on their amplitude, phase, and frequency. Amplitude is the height of the wave, phase is the position of the wave relative to a reference point, and frequency is the number of cycles of the wave per second. To transmit data using Wi-Fi, these characteristics are modulated, or changed, according to a predefined scheme that encodes bits of information.
For example, a high amplitude wave can represent a 1 bit, and a low amplitude wave can represent a 0 bit.
Similarly, a positive phase shift can represent a 1 bit, and a negative phase shift can represent a 0 bit.
Likewise, a high frequency wave can represent a 1 bit, and a low frequency wave can represent a 0 bit. By modulating these characteristics, Wi-Fi can transmit data in binary form over the air. Different modulation schemes can achieve different data rates and reliability, depending on the channel conditions and interference.
Some common modulation schemes used by Wi-Fi are Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), Quadrature Amplitude Modulation (QAM), and Orthogonal Frequency Division Multiplexing (OFDM). References: Understanding Wi-Fi and How It Works, Introduction to Wi-Fi Wireless Networking, Wireless Communication - Overview, Wireless Communication | Set 1.
NEW QUESTION # 43
What do the digits in the ArubaOS-CX switch interface numbering represent?
- A. Stack/Member/Port
- B. Slot/Member/Port
- C. Member/Slot/Port
- D. Module/Slot/Port
Answer: C
Explanation:
Explanation
The digits in the ArubaOS-CX switch interface numbering represent the member, slot, and port numbers of the physical ports and their corresponding logical software interfaces. The format is member / slot / port, where:
* Member: Member number of the switch in a Virtual Switching Framework (VSF) stack. Range: 1 to 8.
The primary switch is always member 1. VSF is a technology that allows multiple switches to operate as a single logical device, providing high availability, scalability, and simplified management.
* Slot: Slot number of the module on the switch chassis. Range: 1 to 6. The 6400 Switch Series has six slots for line cards, while the 8320, 8325, and 8400 Switch Series have four slots for line cards and two slots for management modules.
* Port: Port number of the interface on the module. Range: 1 to 48 for 1G/10G ports, 1 to 32 for 25G ports, and 1 to 8 for 40G/100G ports.
For example, interface 1/1/1 refers to the first port on the first module of the first switch in a VSF stack.
References:
* Identifying switch ports and interfaces
* ArubaOS-CX 10.05 Command-Line Interface Guide 6200 Switch Series
* ArubaOS-CX 10.04 Virtual Switching Extension (VSX) Guide
NEW QUESTION # 44
What is the decimal equivalent of the binary number 10001010?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
Explanation
To convert a binary number to a decimal number, we need to follow these steps:
* Write down the binary number and assign a power of 2 to each digit, starting from the rightmost with
2^0.
* Convert each binary digit to its decimal equivalent by multiplying it with its power of 2.
* Add all the decimal values to get the decimal equivalent of the binary number.
Let's apply these steps to the binary number 10001010:
* 10001010 = 0 × 2^0 + 1 × 2^1 + 0 × 2^2 + 1 × 2^3 + 0 × 2^4 + 0 × 2^5 + 0 × 2^6 + 1 × 2^7
* 10001010 = 0 + 2 + 0 + 8 + 0 + 0 + 0 + 128
* 10001010 = 138 in decimal
Therefore, the decimal equivalent of the binary number 10001010 is 138 (option A).
References: The answer can be verified by using the following resources:
* Convert 10001010 from binary to decimal - Calculator Online
* How to Convert decimal number 10001010 in binary? - CoolConversion
* 10001010 to decimal - Calculatio
* Binary Code | Binary: 10001010 | Decimal: 138 | Bits: 8
NEW QUESTION # 45
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: B,D
NEW QUESTION # 46
Which table must clients populate to remember the L2 addressing of their neighbors?
- A. Routing Table
- B. Ethernet Table
- C. MAC Table
- D. ARP Table
Answer: C
NEW QUESTION # 47
What are the differences between Local-based and Server-based management? (Select two.)
- A. in local-based, the managed device is a client, while in server-based it is a server
- B. local-based management can use the device's console port, server-based cannot
- C. local-based management requires an on-premises network management appliance
- D. server-based management can monitor multiple devices at once, local-based cannot
- E. server-based management cannot talk to the device's control plane, local-based can
Answer: A,B
NEW QUESTION # 48
Which dual-band IEEE WLAN standard provides up to 4.8 Gbps of theoretical data rate?
- A. 802.1 In
- B. 802.11 be
- C. 802.11 ac
- D. 802.1 lax
Answer: B
Explanation:
Explanation
The dual-band IEEE WLAN standard that provides up to 4.8 Gbps of theoretical data rate is 802.11 be, also known as Wi-Fi 7. This standard is an amendment to the IEEE 802.11-2020 standard that aims to improve the performance, efficiency, and reliability of WLANs operating in the 2.4 GHz and 5 GHz frequency bands.
Some of the key features of 802.11 be include:
* Enhanced multi-user multiple-input multiple-output (MU-MIMO) that supports up to 16 spatial streams and 37 users per channel
* Orthogonal frequency division multiple access (OFDMA) that allows multiple users to share the same channel with different subcarrier allocations
* 320 MHz channel bandwidth that enables higher data rates and spectral efficiency
* 4096 quadrature amplitude modulation (QAM) that increases the number of bits per symbol
* Multi-link operation that allows a device to connect to multiple access points (APs) simultaneously
* Enhanced power saving mechanisms that reduce the energy consumption and extend the battery life of devices The other options are incorrect because they do not provide the same level of data rate as 802.11 be. 802.11 ac, or Wi-Fi 5, supports up to 1.73 Gbps of data rate in the 5 GHz band with 160 MHz channel bandwidth and 256 QAM. 802.11 ax, or Wi-Fi 6, supports up to 9.6 Gbps of data rate in both 2.4 GHz and 5 GHz bands with 160 MHz channel bandwidth, 1024 QAM, and OFDMA, but it is not a dual-band standard as it also supports the 6 GHz band. 802.11 n, or Wi-Fi 4, supports up to 600 Mbps of data rate in both 2.4 GHz and 5 GHz bands with
40 MHz channel bandwidth and 64 QAM. 802.1 lax and 802.1 In are not valid IEEE WLAN standards. References: IEEE 802.11be Extremely High Throughput: The Next Generation of Wi-Fi Technology Beyond 802.11ax, Wi-Fi Timeline, IEEE 802.11-2020
NEW QUESTION # 49
Refer to Exhibit.
The PCs are not able to successfully establish bidirectional communication. What change must you deploy to enable the communication between PC-1 and PC-2?
- A. change PC-1's IP address to 172.16.30.10
- B. change PC-2's default gateway to 172.16.31.254
- C. change the Router's 1/1/1 interface IP to 172.16.30.254
- D. change PC-1 's default gateway to 172.16.30.2
Answer: B
Explanation:
Explanation
The PCs are not able to successfully establish bidirectional communication because they are on different subnets and their default gateways are not configured correctly. The default gateway is the IP address of the router interface that connects to the same subnet as the PC. The default gateway allows the PC to send packets to destinations outside its own subnet. In this case, PC-1 and PC-2 are on the 172.16.30.0/24 and
172.16.31.0/24 subnets respectively, and the router interfaces are 172.16.30.254 and 172.16.31.254 respectively. Therefore, the correct default gateway for PC-1 is 172.16.30.254 and the correct default gateway for PC-2 is 172.16.31.254. Changing PC-2's default gateway to 172.16.31.254 will enable the communication between PC-1 and PC-212 References:
* Aruba Certified Network Technician (ACNT) - HPE Certification and Learning
* Aruba Certified Network Technician (ACNT) - Aruba Networks.
NEW QUESTION # 50
Exhibit:
What are valid configurable "Client VLAN Assignment" options for a Bridge-based WLAN in Aruba Central?
(Select three.)
- A. automatic VLAN
- B. native VLAN
- C. static VLAN
- D. hybrid VLAN
Answer: C
NEW QUESTION # 51
Refer to Exhibit.
To which protocol does the header belong?
- A. Internet Protocol
- B. Ethernet Protocol
- C. Transmission Control Protocol
- D. 802.11 Wi-Fi
- E. User Datagram Protocol
Answer: E
Explanation:
Explanation
The header in the exhibit belongs to the User Datagram Protocol (UDP), which is a transport layer protocol that provides connectionless and unreliable data delivery. UDP header consists of four fields: Source Port, Destination Port, Length, and Checksum. The Source Port and Destination Port fields identify the endpoints of the communication, and are 16 bits each. The Length field specifies the total length of the UDP datagram, including the header and the data, and is also 16 bits. The Checksum field is used to verify the integrity of the UDP datagram, and is optional in IPv4 but mandatory in IPv6. The Checksum field is also 16 bits.
The other options are incorrect because:
B: Transmission Control Protocol (TCP) is another transport layer protocol that provides connection-oriented and reliable data delivery. TCP header has more fields than UDP header, such as Sequence Number, Acknowledgment Number, Window Size, etc. TCP header is at least 20 bytes long, while UDP header is only
8 bytes long.
C: 802.11 Wi-Fi is a set of standards for wireless local area networks (WLANs). 802.11 Wi-Fi header is different from UDP header, as it contains fields such as Frame Control, Duration, Address 1, Address 2, Address 3, etc. 802.11 Wi-Fi header is at least 24 bytes long, while UDP header is only 8 bytes long.
D: Ethernet Protocol is a data link layer protocol that defines the physical and logical characteristics of a wired network. Ethernet header is different from UDP header, as it contains fields such as Destination MAC Address, Source MAC Address, EtherType, etc. Ethernet header is 14 bytes long, while UDP header is 8 bytes long.
E: Internet Protocol (IP) is a network layer protocol that provides logical addressing and routing for data packets. IP header is different from UDP header, as it contains fields such as Version, Internet Header Length, Type of Service, Total Length, Identification, Flags, Fragment Offset, Time to Live, Protocol, Header Checksum, Source IP Address, Destination IP Address, etc. IP header is at least 20 bytes long, while UDP header is 8 bytes long. References:
* Aruba Certified Network Technician (ACNT) | HPE Aruba Networking
* User Datagram Protocol - Wikipedia
* Transmission Control Protocol - Wikipedia
* IEEE 802.11 - Wikipedia
* Ethernet frame - Wikipedia
* [IP header - Wikipedia]
NEW QUESTION # 52
What are characteristics of Aruba Central? (Select two.)
- A. It is considered cloud-based network management.
- B. It must be deployed as an on-premises server.
- C. It can manage third-party networking equipment.
- D. It manages networking equipment using HTTPs.
- E. It manages networking equipment using SNMP.
Answer: A,C
NEW QUESTION # 53
Which dual-band IEEE WLAN standard provides up to 4.8 Gbps of theoretical data rate?
- A. 802.1 In
- B. 802.11 be
- C. 802.11 ac
- D. 802.1 lax
Answer: B
Explanation:
Explanation
https://ieeexplore.ieee.org/iel7/6287639/8948470/09090146.pdf
NEW QUESTION # 54
Which command should you enter to access the second interface of a one-rack-unit standalone ArubaOS-CX switch?
- A. Interface 1/1/2
- B. Interface 0/0/2
- C. Interface 1/0/2
- D. Interface 0/1/2
Answer: B
Explanation:
Explanation
To access the second interface of a one-rack-unit standalone ArubaOS-CX switch, you should enter the command interface 0/0/2. This command specifies the interface name in the format of interface
<chassis>/<module>/<port>, where <chassis> is the chassis number, <module> is the module number, and <port> is the port number. For a one-rack-unit standalone switch, the chassis number is always 0, and the module number is also 0 for the front panel ports. The port number starts from 1 and increments by 1 for each port. Therefore, the second interface of the switch is named interface 0/0/2. The other options are incorrect because they do not follow the correct interface naming convention for a one-rack-unit standalone switch. References: ArubaOS-CX 10.05 Command-Line Interface Guide 6200 Switch Series, ArubaOS-CX Switches - Configuring for initial access and performing a software upgrade
NEW QUESTION # 55
Which represents a valid Basic Service Set Identifier (BSSID)?
- A. a radio's MAC address assigned to a WLAN
- B. the name of the wireless network
- C. the radio and all its associated clients
- D. a group of radios and all its WLAN clients
Answer: A
Explanation:
Explanation
A BSSID is a 48-bit label that identifies a basic service set (BSS) within a wireless network. A BSS is a subgroup of devices that share physical-layer medium access characteristics, such as radio frequency, modulation scheme, and security settings. A BSSID is usually the MAC address of the access point (AP) that creates the BSS, or a randomly generated value in an ad hoc network. A BSSID is different from an SSID, which is the name of the wireless network that users see and connect to. An SSID can have multiple BSSIDs associated with it, depending on the number and location of the APs. A BSSID is used to differentiate between different BSSs and to facilitate roaming and load balancing among them. References: https://internetspeedtest.world/wiki/bssid
https://www.minthaik.com/bssid-basic-service-set-identifier/
NEW QUESTION # 56
Which protocol provides frame delivery using physical addressing and error detection using frame check sequence?
- A. User Datagram Protocol
- B. Ethernet
- C. Link Layer Discovery Protocol
- D. TCP/IP
Answer: C
NEW QUESTION # 57
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HP HPE3-U01: Aruba Certified Network Technician Exam is a certification exam designed to validate the knowledge and skills of candidates in the field of wireless networking. HPE3-U01 exam is aimed at individuals who have a basic understanding of networking concepts and are interested in pursuing a career in wireless networking.
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