Reliable HPE6-A85 Exam Guide, Valid HPE6-A85 Test Duration

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HP HPE6-A85 Exam Overview:

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Reliable HPE6-A85 Exam Guide | High Pass-Rate Valid HPE6-A85 Test Duration: Aruba Certified Campus Access Associate Exam 100% Pass

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HP HPE6-A85 exam is based on the Aruba Certified Mobility Associate (ACMA) certification and is a prerequisite for the higher-level Aruba Certified Mobility Professional (ACMP) certification. HPE6-A85 exam is designed to test the candidate's knowledge and skills in wireless networking and their ability to design and implement secure, reliable, and scalable wireless networks. Passing HPE6-A85 Exam demonstrates that the candidate is a skilled professional who is capable of designing and implementing complex wireless networks that meet the needs of modern enterprises.

HP Aruba Certified Campus Access Associate Exam Sample Questions (Q121-Q126):

NEW QUESTION # 121
Which part of the WPA Key Hierarchy is used to encrypt and/or decrypt data?

• A. Pairwise Temporal Key (PTK)
• B. number used once (nonce)
• C. Pairwise Master Key (PMK)
• D. Key Confirmation Key (KCK)

Answer: A

Explanation:
The part of WPA Key Hierarchy that is used to encrypt and/or decrypt data is Pairwise Temporal Key (PTK). PTK is a key that is derived from PMK Pairwise Master Key (PMK) is a key that is derived from PSK Pre-shared Key (PSK) is a key that is shared between two parties before communication begins, ANonce Authenticator Nonce (ANonce) is a random number generated by an authenticator (a device that controls access to network resources, such as an AP), SNonce Supplicant Nonce (SNonce) is a randomnumber generated by supplicant (a device that wants to access network resources, such as an STA), AA Authenticator Address (AA) is MAC address of authenticator, SA Supplicant Address (SA) is MAC address of supplicant using Pseudo-Random Function (PRF).
PTK consists of four subkeys:
- KCK Key Confirmation Key (KCK) is used for message integrity check
- KEK Key Encryption Key (KEK) is used for encryption key distribution
- TK Temporal Key (TK) is used for data encryption
- MIC Message Integrity Code (MIC) key
The subkey that is specifically used for data encryption is TK Temporal Key (TK). TK is also known as Pairwise Transient Key (PTK). TK changes periodically during communication based on time or number of packets transmitted.
The other options are not part of WPA Key Hierarchy because:
- PMK: PMK is not part of WPA Key Hierarchy, but rather an input for deriving PTK.
- KCK: KCK is part of WPA Key Hierarchy, but it is not used for data encryption, but rather for message integrity check.
- Nonce: Nonce is not part of WPA Key Hierarchy, but rather an input for deriving PTK.

NEW QUESTION # 122
You need to configure wireless access for several classes of loT devices, some of which operate only with 802
11b. Each class must have a unique PSK and will require a different security policy applied as a role There will be 15-20 different classes of devices and performance should be optimized Which option fulfills these requirements''

• A. Individual SSIDs with unique PSK for each loT class, using 5GHz and 6 GHz bands
• B. Individual SSIDs with unique PSK for each loT class, using 2.4GHZ and 5GHz band
• C. Single SSID with MPSK for each loT class using 2.4GHz and 5 GHz bands
• D. Single SSID with MPSK for each loT class using 5 GHz and 6 GHz bands

Answer: C

Explanation:
For configuring wireless access for multiple classes of IoT devices with varying security requirements, using a single SSID with Multiple Pre-Shared Keys (MPSK) is an efficient solution. MPSK allows different devices or groups of devices to connect to the same SSID but with unique PSKs, facilitating unique security policies for each class. Given that some IoT devices only support 802.11b, which operates in the 2.4GHz band, it is essential to include the 2.4GHz band in the configuration. The 5GHz band should also be included to support devices capable of operating in that band and to optimize network performance. The 6GHz band (option A) is not suitable since 802.11b devices are not compatible with it. Individual SSIDs for each IoT class (options C and D) would unnecessarily complicate network management and SSID overhead.

NEW QUESTION # 123
When measuring signal strength, dBm is commonly used and 0 dBm corresponds to 1 mW power.
What does -20 dBm correspond to?

• A. 10 mW
• B. .-1 mW
• C. 1mW
• D. .01 mw

Answer: D

Explanation:
dBm is a unit of power that measures the ratio of a given power level to 1 mW. The formula to convert dBm to mW is: P(mW) = 1mW * 10

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