HP HPE6-A85日本語リアル試験問題テストエンジン問題集トレーニングには62問あります [Q33-Q53]

HP HPE6-A85日本語リアル試験問題テストエンジン問題集トレーニングには62問あります

HPE6-A85日本語実際の問題解答PDFには100%カバー率リアル試験問題

質問 # 33
レイヤ 2 MAC 認証を使用する利点は何ですか?

A. ユーザー名と MAC アドレスを照合します。
B. MAC 識別子はなりすましが困難です
C. MAC 許可リストは長期にわたって簡単に維持されます
D. クライアントでの設定は必要ありません。

正解：D

解説：
Explanation
Layer 2 MAC authentication is a method of authenticating devices based on their MAC addresses without requiring any client-side configuration or credentials. The switch sends the MAC address of the device to an authentication server such as ClearPass or RADIUS, which checks if the MAC address is authorized to access the network. If yes, the switch grants access to the device based on the assigned role and policies. If no, the switch denies access or redirects the device to a captive portal for further authentication.
References:https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/1-ove

質問 # 34
ユースケースを適切な認証テクノロジーに合わせてください。

正解：

解説：

Explanation
Add certificates to Android devices with the Aruba Onboard Application in the Google Play store that will be used for wireless authentication A) ClearPass Policy Manager Authenticate users on corporate-owned Chromebook devices using 802.1X and context gathered from the network devices that they log into B) Cloud Authentication and Policy Leverage unbound Mum Pre-Shared Keys (MPSK) managed by Aruoa Central to the end-users and client devices B) Cloud Authentication and Policy Validate devices exist in a Mobile Device Management (MDM) database before authenticating BYOD users with corporate Active Directory using certificates A) ClearPass Policy Manager
https://www.arubanetworks.com/techdocs/ClearPass/6.11/PolicyManager/Content/CPPM_UserGuide/About%20
https://www.arubanetworks.com/products/security/network-access-control/

質問 # 35
ワイヤレスクライアントのローミングはどこで決定されますか?

A. クライアントデバイス
B. 発信元 AP と宛先 AP による共同決定
C. 仮想コントローラー
D. アルバセントラル

正解：A

解説：
Explanation
Wireless client roaming decisions are made by the client device based on its own criteria, such as signal strength, noise level, data rate, etc. The network can influence the client's roaming decision by providing information such as neighbor reports, load balancing, band steering, etc., but the final decision is up to the client.
References:https://www.arubanetworks.com/techdocs/Instant_86_WebHelp/Content/instant-ug/wlan-roaming/cli

質問 # 36
データの暗号化および/または復号化に WPA キー階層のどの部分が使用されるか

A. キー確認キー（KCK）
B. ペアワイズマスターキー (PMK)
C. 1回使用される数値(ノンス)
D. ペアワイズ一時キー (PTK)

正解：D

解説：
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.
References: https://en.wikipedia.org/wiki/Wi-Fi_Protected_Access#WPA_key_hierarchy_and_management
https://www.cwnp.com/wp-content/uploads/pdf/WPA2.pdf

質問 # 37
「show lacp Interfaces」で LACP を確認するときの「ALFOE」のステータスは何を意味しますか?

A. ローカルスイッチ上のインターフェイスはstatic LAG として構成されています
B. LACP がピア側で設定されていません
C. LACP は同期プロセス中です
D. LACP は問題なく正常に動作しています。

正解：D

解説：
Explanation
The status of "ALFOE" means that LACP Link Aggregation Control Protocol (LACP) is a network protocol that provides dynamic negotiation of link aggregation between two devices. LACP allows multiple physical links to be combined into a single logical link for increased bandwidth, redundancy, and load balancing. LACP is defined in IEEE 802.3ad standard. is working fine with no problems when checking LACP with "show lacp interfaces". The status of "ALFOE" is an acronym that stands for:
A: Active - The interface is actively sending LACP packets to negotiate link aggregation with the peer device.
L: Link Up - The interface has physical connectivity with the peer device.
F: Aggregatable - The interface can be aggregated with other interfaces into a single logical link.
D: Synchronized - The interface has successfully negotiated link aggregation parameters with the peer device and can transmit or receive traffic on the logical link.
E: Collecting/Distributing - The interface is collecting incoming traffic from the peer device and distributing outgoing traffic to the peer device on the logical link.
The other options are not correct because:
The interface on the local switch is configured as static-LAG: This option is false because static-LAG does not use LACP to negotiate link aggregation. Static-LAG requires manual configuration of link aggregation parameters on both devices and does not have any status indicators.
LACP is not configured on the peer side: This option is false because if LACP is not configured on the peer side, the status of the interface would be "ALF-" instead of "ALFOE". This means that the interface would not be synchronized or collecting/distributing with the peer device.
LACP is in a synchronizing process: This option is false because if LACP is in a synchronizing process, the status of the interface would be "ALF-O" instead of "ALFOE". This means that the interface would not be collecting/distributing with the peer device.
References:
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/lag/lag-overview.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/lag/lag-lacp.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/lag/lag-lacp-status.htm

質問 # 38
WPA2-Personal をセキュリティに使用すると、WLAN 環境に導入される弱点は何ですか?

A. ペアワイズテンポラルキー (PTK) は各セッションに固有です
B. WPA 4-Way Handshake を使用しません。
C. 認証局によって生成された X 509 証明書を使用します
D. ペアワイズマスターキー (PMK) はすべてのユーザーによって共有されます

正解：D

解説：
Explanation
The weakness introduced into WLAN environment when WPA2-Personal is used for security is that 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 , which are both fixed. This means that all users who know PSK can generate PMK without any authentication process. This also means that if PSK or PMK are compromised by an attacker, they can be used to decrypt all traffic encrypted with PTK Pairwise Temporal Key (PTK) is a key that is derived from PMK, ANonce AuthenticatorNonce (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 random number 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 other options are not weaknesses because:
It uses X 509 certificates generated by a Certification Authority: This option is false because WPA2-Personal does not use X 509 certificates or Certification Authority for authentication. X 509 certificates and Certification Authority are used in WPA2-Enterprise mode, which uses 802.1X and EAP Extensible Authentication Protocol (EAP) is an authentication framework that provides support for multiple authentication methods, such as passwords, certificates, tokens, or biometrics. EAP is used in wireless networks and point-to-point connections to provide secure authentication between a supplicant (a device that wants to access the network) and an authentication server (a device that verifies the credentials of the supplicant). for user authentication with a RADIUS server Remote Authentication Dial-In User Service (RADIUS) is a network protocol that provides centralized authentication, authorization, and accounting (AAA) management for users who connect and use a network service .
The Pairwise Temporal Key (PTK) is specific to each session: This option is false because PTK being specific to each session is not a weakness but a strength of WPA2-Personal. PTK being specific to each session means that it changes periodically during communication based on time or number of packets transmitted. This prevents replay attacks and increases security of data encryption.
It does not use the WPA 4-Way Handshake: This option is false because WPA2-Personal does use the WPA 4-Way Handshake for key negotiation. The WPA 4-Way Handshake is a process that allows the station and the access point to exchange ANonce and SNonce and derive PTK from PMK. The WPA
4-Way Handshake also allows the station and the access point to verify each other's PMK and confirm the installation of PTK.
References: https://en.wikipedia.org/wiki/Wi-Fi_Protected_Access#WPA_key_hierarchy_and_management
https://www.cwnp.com/wp-content/uploads/pdf/WPA2.pdf

質問 # 39
WPA3-Personal は、ステーションがワイヤレスネットワークに接続するたびに異なるペアワイズマスターキー (PMK) を生成するソースとして何を使用しますか?

A. セッション固有の情報 (MAC および nonce)
B. 日和見無線暗号化 (OWE)
C. 同等者同時認証 (SAE)
D. キー暗号化キー (KEK)

正解：A

解説：
Explanation
The source that WPA3-Personal uses to generate a different Pairwise Master Key (PMK) each time a station connects to the wireless network is session-specific information (MACs and nonces). WPA3-Personal uses Simultaneous Authentication of Equals (SAE) to replace PSK authentication in WPA2-Personal. SAE is a secure key establishment protocol that uses a Diffie-Hellman key exchange to derive a shared secret between two parties without revealing it to an eavesdropper. SAE involves the following steps:
The station and the access point exchange Commit messages that contain their MAC addresses and random numbers called nonces.
The station and the access point use their own passwords and the received MAC addresses and nonces to calculate a shared secret called SAE Password Element (PE).
The station and the access point use their own PE and the received MAC addresses and nonces to calculate a shared secret called SAE Key Seed (KS).
The station and the access point use their own KS and the received MAC addresses and nonces to calculate a shared secret called SAE Key Confirmation Key (KCK).
The station and the access point use their own KCK and the received MAC addresses and nonces to calculate a confirmation value called SAE Confirm.
The station and the access point exchange Confirm messages that contain their SAE Confirm values.
The station and the access point verify that the received SAE Confirm values match their own calculated values. If they match, the authentication is successful and the station and the access point have established a shared secret called SAE PMK.
The SAE PMK is different for each session because it depends on the MAC addresses and nonces that are exchanged in each authentication process. The SAE PMK is used as an input for the 4-way handshake that generates the Pairwise Temporal Key (PTK) for encrypting data frames.
The other options are not sources that WPA3-Personal uses to generate a different PMK each time a station connects to the wireless network because:
Opportunistic Wireless Encryption (OWE): OWE is a feature that provides encryption for open networks without requiring authentication or passwords. OWE uses a similar key establishment protocol as SAE, but it does not generate a PMK. Instead, it generates a Pairwise Secret (PS) that is used as an input for the 4-way handshake that generates the PTK.
Simultaneous Authentication of Equals (SAE): SAE is not a source, but a protocol that uses session-specific information as a source to generate a different PMK each time a station connects to the wireless network.
Key Encryption Key (KEK): KEK is not a source, but an output of the 4-way handshake that generates the PTK. KEK is used to encrypt group keys that are distributed by the access point.
References: https://www.wi-fi.org/discover-wi-fi/wi-fi-certified-6e
https://www.wi-fi.org/file/wi-fi-alliance-unlicensed-spectrum-in-the-us
https://www.cisco.com/c/en/us/products/collateral/wireless/catalyst-9100ax-access-points/wpa3-dep-guide-og.ht
https://info.support.huawei.com/info-finder/encyclopedia/en/WPA3.html
https://rp.os3.nl/2019-2020/p99/presentation.pdf

質問 # 40
ArubaOS-CX スイッチへの入力で過剰なブロードキャストトラフィックをドロップする必要があります。このタスクに使用する最適なテクノロジは何ですか?

A. QoS シェーピング
B. DWRR キューイング
C. レート制限
D. 厳密なキューイング

正解：C

解説：
Explanation
The best technology to use for dropping excessive broadcast traffic on ingress to an ArubaOS-CX switch is rate limiting. Rate limiting is a feature that allows network administrators to control the amount of traffic that enters or leaves a port or a VLAN on a switch by setting bandwidth thresholds or limits. Rate limiting can be used to prevent network congestion, improve network performance, enforce service level agreements(SLAs), or mitigate denial-of-service (DoS) attacks. Rate limiting can be applied to broadcast traffic on ingress to an ArubaOS-CX switch by using the storm-control command in interface configuration mode. This command allows network administrators to specify the percentage of bandwidth or packets per second that can be used by broadcast traffic on an ingress port. If the broadcast traffic exceeds the specified threshold, the switch will drop the excess packets.
The other options are not technologies for dropping excessive broadcast traffic on ingress because:
DWRR queuing: DWRR stands for Deficit Weighted Round Robin, which is a queuing algorithm that assigns different weights or priorities to different traffic classes or queues on an egress port. DWRR ensures that each queue gets its fair share of bandwidth based on its weight while avoiding starvation of lower priority queues. DWRR does not drop excessive broadcast traffic on ingress, but rather schedules outgoing traffic on egress.
QoS shaping: QoS stands for Quality of Service, which is a set of techniques that manage network resources and provide different levels of service to different types of traffic based on their requirements.
QoS shaping is a technique that delays or buffers outgoing traffic on an egress port to match the available bandwidth or rate limit. QoS shaping does not drop excessive broadcast traffic on ingress, but rather smooths outgoing traffic on egress.
Strict queuing: Strict queuing is another queuing algorithm that assigns different priorities to different traffic classes or queues on an egress port. Strict queuing ensures that higher priority queues are always served before lower priority queues regardless of their bandwidth requirements or weights. Strict queuing does not drop excessive broadcast traffic on ingress, but rather schedules outgoing traffic on egress.
References: https://en.wikipedia.org/wiki/Rate_limiting
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/qos/storm-control.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/qos/dwrr.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/qos/shaping.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/qos/strict.htm

質問 # 41
各 AAA サービスをその正しい定義と照合します（照合は複数回使用されるか、まったく使用されない場合があります）。

正解：

解説：

Explanation
AAA Authentication, Authorization, and Accounting (AAA) Authentication, Authorization, and Accounting (AAA) is a framework that provides security services for network access control . AAA consists of three components:
Authentication: The process of verifying the identity of a user or device that wants to access the network based on credentials such as username and password , certificates , tokens , etc . Authentication can use different protocols such as PAP , CHAP , EAP , RADIUS , TACACS+ , etc .
Authorization: The process of granting or denying access to network resources based on the identity and privileges of a user or device . Authorization can use different methods such as ACLs , RBAC , MAC , DAC , etc .
Accounting: The process of recording and reporting the activities and usage of network resources by users or devices . Accounting can use different formats such as syslog , SNMP , NetFlow , etc .
service. Here is my answer:
The correct match for each AAA service with its definition is:
Accounting: C. Tracking user activity on the network
Authentication: D. Who can access the network based on credentials/certificates Authorization: B. Control users access on the network The other options are not correct matches because:
A list of rules that specifies which entities are permitted or denied access: This option is a definition of an access control list (ACL) Access Control List (ACL) Access Control List (ACL) is a list of rules that specifies which entities are permitted or denied access to a network resource such as a router , switch , firewall , server , etc . ACLs can be based on different criteria such as source and destination IP addresses , port numbers , protocol types , time of day , etc . ACLs can be applied to different interfaces or directions such as inbound or outbound . ACLs can be verified by using commands such as show access-lists , show ip access-lists , debug ip packet , etc . , not an AAA service.
Who can access the network based on credentials/certificates: This option is a definition of authentication, not authorization. Authorization is the process of granting or denying access to network resources based on the identity and privileges of a user or device, not based on credentials/certificates.
References: https://en.wikipedia.org/wiki/AAA_(computer_security)
https://www.cisco.com/c/en/us/support/docs/security-vpn/remote-authentication-dial-user-service-radius/13838-1

質問 # 42
配信およびレイヤー 3 サービスに使用される 6300M スイッチのスタックペアを使用してネットワークを構成しています。ディストリビューションスタックの下流に接続された CX6200 スイッチの複数のアクセススタックで使用されるユーザー用の新しい VLAN を作成します。これと同様の複数の VLAN/サブネットを作成します。これらは複数のアクセススタックで利用されます。正しい設定方法は何ですか?この VLAN に関連付けられるサブネットのルーティング可能なインターフェイスは?

A. 各ダウンストリームスイッチのサブネットに SVl を作成します。
B. 6300M スタック上のサブネットに SVl を作成します。
C. 6300M スタック上のサブネットに SVl を作成し、各ダウンストリームスイッチスタックの管理アドレスを同じサブネット内の異なる IP アドレスに割り当てます。
D. 各ダウンストリームスイッチの 6300M スタック上のサブネットに物理的にルーティングされたインターフェイスを作成します。

正解：B

解説：
Explanation
The correct way to configure the routable interface for the subnet to be associated with this VLAN is to create an SVI Switched Virtual Interface (SVI) Switched Virtual Interface (SVI) is a virtual interface on a switch that represents a VLAN and provides Layer 3 routing functions for that VLAN . SVIs are used to enable inter-VLAN routing , provide gateway addresses for hosts in VLANs , apply ACLs or QoS policies to VLANs
, etc . SVIs have some advantages over physical routed interfaces such as saving interface ports , reducing cable costs , simplifying network design , etc . SVIs are usually numbered according to their VLAN IDs (e.g., vlan 10) and assigned IP addresses within the subnet of their VLANs . SVIs can be created and configured by using commands such as interface vlan , ip address , no shutdown , etc . SVIs can be verified by using commands such as show ip interface brief , show vlan , show ip route , etc . in the subnet on the 6300M stack.
An SVI is a virtual interface on a switch that represents a VLAN and provides Layer 3 routing functions for that VLAN. Creating an SVI in the subnet on the 6300M stack allows the switch to act as a gateway for the users in that VLAN and enable inter-VLAN routing between different subnets. Creating an SVI in the subnet on the 6300M stack also simplifies network design and management by reducing the number of physical interfaces and cables required for routing.
The other options are not correct ways to configure the routable interface for the subnet to be associated with this VLAN because:
Create a physically routed interface in the subnet on the 6300M stack for each downstream switch: This option is incorrect because creating a physically routedinterface in the subnet on the 6300M stack for each downstream switch would require using one physical port and cable per downstream switch, which would consume interface resources and increase cable costs. Creating a physically routed interface in the subnet on the 6300M stack for each downstream switch would also complicate network design and management by requiring separate routing configurations and policies for each interface.
Create an SVl in the subnet on each downstream switch: This option is incorrect because creating an SVI in the subnet on each downstream switch would not enable inter-VLAN routing between different subnets, as each downstream switch would act as a gateway for its own VLAN only. Creating an SVI in the subnet on each downstream switch would also create duplicate IP addresses in the same subnet, which would cause IP conflicts and routing errors.
Create an SVl in the subnet on the 6300M stack, and assign the management address of each downstream switch stack to a different IP address in the same subnet: This option is incorrect because creating an SVI in the subnet on the 6300M stack, and assigning the management address of each downstream switch stack to a different IP address in the same subnet would not enable inter-VLAN routing between different subnets, as each downstream switch would still act as a gateway for its own VLAN only. Creating an SVI in the subnet on the 6300M stack, and assigning the management address of each downstream switch stack to a different IP address in the same subnet would also create unnecessary IP addresses in the same subnet, which would waste IP space and complicate network management.
References: https://www.arubanetworks.com/techdocs/AOS-CX/10.05/HTML/5200-7295/index.html
https://www.arubanetworks.com/techdocs/AOS-CX/10.05/HTML/5200-7295/cx-noscg/l3-routing/l3-routing-ove
https://www.arubanetworks.com/techdocs/AOS-CX/10.05/HTML/5200-7295/cx-noscg/l3-routing/l3-routing-con

質問 # 43
ネットワーク技術者は、Aruba Central を使用してネットワークの問題をトラブルシューティングしています。トラブルシューティングプロセスを開始するときに、問題を表示して確認するにはどのダッシュボードを使用できますか?

A. 監査証跡ダッシュボード
B. ツールダッシュボード
C. レポートダッシュボード
D. アラートとイベントのダッシュボード

正解：D

解説：
Explanation
The Alerts and Events dashboard displays all types of alerts and events generated for events pertaining to device provisioning, configuration, and user management. You can use the Config icon to configure alerts and notifications for different alert categories and severities . You can also view the alerts and events in the List view and Summary view2. References:
https://www.arubanetworks.com/techdocs/central/latest/content/nms/alerts/configuring-alerts.htm 2
https://www.arubanetworks.com/techdocs/central/latest/content/nms/alerts/viewing-alerts.htm

質問 # 44
あなたは顧客との会議に出席しており、ネットワーク冗長機能マルチプルスパニングツリー (MSTP) について説明するよう求められています。この機能についての正しい説明は何ですか?

A. スイッチのシリアル番号を使用したデフォルトの MSTP 構成 ID 名
B. デフォルトではスイッチのシリアル番号としての MSTP 構成 ID リビジョン
C. 現在の MSTP ルート優先順位としてデフォルトで設定されている MSTP 構成 ID リビジョン
D. スイッチ IMC アドレスを使用したデフォルトの MSTP 構成 ID 名

正解：D

解説：
Explanation
MSTP Multiple Spanning Tree Protocol. MSTP is an IEEE standard protocol for preventing loops in a network with multiple VLANs. MSTP allows multiple VLANs to be mapped to a reduced number of spanning-tree instances. configuration ID consists of two parameters: name and revision. The name is a
32-byte ASCII string that identifies the MSTP region, which is a group of switches that share the same configuration ID and VLAN-to-instance mapping. The revision is a 16-bit number that indicates the version of the configuration ID. By default, the MSTP configuration ID name is set to the switch IMC address, which is a unique identifier derived from the MAC address Media Access Control address. MAC address is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment. of the switch.
References:https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/mstp/

質問 # 45
SVI を使用した ln バンド管理が使用されている場合、Aruba CX スイッチでデフォルトルートを 10.4.5.1 に設定するにはどのコマンドが使用されますか?

A. デフォルトゲートウェイ 10.4.5.1
B. ip ルート 0.0 0 0/0 10.4.5.1
C. ip ルート 0 0 0.070 10.4 5.1 vrf 管理
D. iP デフォルトゲートウェイ 10.4.5.1

正解：B

解説：
Explanation
The command that is used to set a default route to 10.4.5.1 on an Aruba CX switch when in-band management using an SVI is being used is ip route 0.0 0 0/0 10.4.5.1 . This command specifies the destination network address (0.0 0 0) and prefix length (/0) and the next-hop address (10.4.5.1) for reaching any network that is not directly connected to the switch. The default route applies to the default VRF Virtual Routing and Forwarding.
VRF is a technology that allows multiple instances of a routing table to co-exist within the same router at the same time. VRFs are typically used to segment network traffic for security, privacy, or administrative purposes. , which is used for in-band management traffic that goes through an SVI Switch Virtual Interface.
SVI is a virtual interface on a switch that allows the switch to route packets between different VLANs on the same switch or different switches that are connected by a trunk link. An SVI is associated with a VLAN and has an IP address and subnet mask assigned to it
https://www.arubanetworks.com/techdocs/AOS-CX/10_08/HTML/ip_route_4100i-6000-6100-6200/Content/Ch
2
https://www.arubanetworks.com/techdocs/AOS-CX/10_08/HTML/ip_route_4100i-6000-6100-6200/Content/Ch

質問 # 46
Aruba Central を使用する場合、ネットワークの健全性の問題を解決するための推奨手順を特定し、サポート担当者と詳細情報を共有できるものは何ですか?

A. OAlOps
B. アラートとイベント
C. 概要ダッシュボード
D. 監査証跡

正解：A

解説：
Explanation
OAlOps is a feature of Aruba Central that uses artificial intelligence and machine learning to identify recommended steps to resolve network health issues and allows you to share detailed information with support personnel. OAlOps provides insights into network performance, root cause analysis, anomaly detection, proactive alerts, and automated remediation actions.OAlOps also integrates with Aruba User Experience Insight (UXI) sensors to measure and improve user experience across wired and wireless networks.
References:https://www.arubanetworks.com/assets/ds/DS_ArubaCentral.pdf

質問 # 47
IP カメラ AP を展開するときに、スイッチポートで PoE 優先順位を動的に設定するにはどうすればよいですか。他の PoE デバイスはどうですか?

A. スイッチモジュールで Quick PoE を有効にする
B. デバイスプロビジョニングのプロファイリングを有効にする
C. PoE 電源管理をクラスベースモードに設定します。
D. PoE 電源管理を動的モードに設定します。

正解：B

解説：
Explanation
Profiling is a feature that allows Aruba switches to automatically identify and classify devices connected to them based on various attributes such as MAC address, DHCP options, LLDP information, etc. Profiling can be used to dynamically set the PoE priority on a switch port based on the device type and power requirements.
For example, an IP camera may have a higher PoE priority than a printer or a PC. Profiling can also be used to apply other configuration settings such as VLANs, ACLs, QoS, etc. based on the device profile.
References:https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/1-ove

質問 # 48
IP カメラ AP を展開するときに、スイッチポートで PoE 優先順位を動的に設定するにはどうすればよいですか。他の PoE デバイスはどうですか?

A. スイッチモジュールで Quick PoE を有効にする
B. デバイスプロビジョニングのプロファイリングを有効にする
C. PoE 電源管理をクラスベースモードに設定します。
D. PoE 電源管理を動的モードに設定します。

正解：B

質問 # 49
Aruba モビリティマスターアーキテクチャを使用する場合、ネットワーク管理者はどの機能を使用して RF 計画および最適化サービスを一元化できますか?

A. クライアントウェーブ
B. エアマッチ
C. クライアントマッチ
D. エアウェイブ

正解：B

解説：
Explanation
AirMatch is a feature that provides centralized RF planning and optimization service for Aruba wireless networks. It uses cloud-based algorithms and machine learning to optimize the RF performance and user experience. References:https://www.arubanetworks.com/assets/ds/DS_AirMatch.pdf

質問 # 50
要求どおりにエッジスイッチのアップリンクを設定した後、同僚がコアへの ping に失敗したと言います。あなたは同僚に、接続が差し込まれており、スイッチの電源が入っていることを確認するように依頼します。同僚は両方が正しいことを確認します。あなたはコアスイッチに ping を試みます。 ping が失敗していることを確認します。
この展開の性質を理解した上で、この問題のトラブルシューティングにどのようなコマンドを使用できるか

A. 10.1.1.1 に ping - コアに ping を実行して、接続を確認します。 show lacp agg - どのリンクアグリゲーションが現在どの物理ポートを使用して設定されているかを確認します。 show lacp int - LACP ステータスと、リンクがブロックされているかどうかを確認します。トポロジ show lldp neighors - コアを L2 ネイバーとして認識できるかどうかを確認し、正しいリンクが正しいポートに接続されているかどうかを確認します。 show runinterface 1/1/51.1/1/52 - 物理インターフェイスを確認します。 no-shut であり、ラグのメンバーである show runinterface lag 1 - 正しい VLAN トランキング設定が論理インターフェイスに適用されていることを確認するため show run int vlan 20 - L3 SVI が no shut であり、正しいサブネットに設定されていることを確認するため
B. Show run - スイッチの実行構成を表示します。 Show run | begin 20 "vlan 20" - VLAN 20 がデータベースに正しく追加されたことを確認するには、show run | begin 20 'interface vlan 20' - L3 SVI 設定を表示します Show runinterface 1/1/51.1/1/52 - 物理インターフェイスがシャットされておらず、LAG 1 のメンバーとして追加されていることを確認します Show run int lag 1 - LACP ブロック状態を解消するために LACP モードがアクティブに設定されていることを確認します
C. 診断 diag Cable-diag 1/1/51 diag Cable-diag 1/1/52 - 物理リンクの診断情報を表示して、レイヤー 1 接続の中断に関するステータスを取得するには、show ip Route - 確認します。デフォルトゲートウェイがルーティングテーブルに存在すること show ip ospf - レイヤ 3 ルーティングプロトコルが有効になっているかどうかを確認する show ip dns - 有効な DNS ソースがあるかどうかを表示する
D. Ping 10.11 1 - コアに ping して、接続性を確認します。トランクを表示 - LAG インターフェイスがスイッチに正しく追加されたかどうかを確認します。スパニングツリーを表示します。 - スパニングツリーのブロック状態を確認します。ポートアクセスクライアントインターフェイスをすべて表示します。 - すべてのインターフェイスでポートアクセスのブロック状態または失敗した認証試行を表示します。 show runinterface vlan20 - l_3 接続に対してレイヤ 3 SVI 設定が正しいことを再確認します。 Show lldp neighors - コアをL2 ネイバーは、正しいリンクが正しいポートに接続されているかどうかを確認します。

正解：A

解説：
Explanation
These commands might help troubleshoot this issue as they check various aspects of the connectivity between the edge switch and the core switch, such as Layer 3 reachability, Layer 2 adjacency, LACP configuration and status, VLAN trunking configuration, and interface status.
References:https://www.arubanetworks.com/techdocs/AOS-CX_10_04/CLI/GUID-8F0E7E8B-0F4B-4A3C-AE7

質問 # 51
ヘッドレスデバイスを WLAN に安全に追加するためのデバイス固有のパスフレーズを可能にする Aruba テクノロジーはどれですか?

A. 有線同等プライバシー (WEP)
B. 複数の事前共有キー (MPSK)
C. 日和見無線暗号化 (OWE)
D. テンポラルキー完全性プロトコル (TKIP)

正解：B

解説：
Explanation
Multiple Pre-Shared Key (MPSK) is a feature that allows device-specific or group-specific passphrases to securely add headless devices to the WLAN Wireless Local Area Network. WLAN is a wireless computer network that links two or more devices using wireless communication to form a local area network (LAN) within a limited area such as a home, school, computer laboratory, campus, or office building. . MPSK enhances the WPA2 PSK Wi-Fi Protected Access 2 Pre-Shared Key. WPA2 PSK is a method of securing your network using WPA2 with the use of the optional Pre-Shared Key (PSK) authentication, which was designed for home users without an enterprise authentication server. mode by allowing different PSKs for different devices on the same SSID Service Set Identifier. SSID is a case-sensitive, 32 alphanumeric character unique identifier attached to the header of packets sent over a wireless local-area network (WLAN). The SSID acts as a password when a mobile device tries to connect to the basic service set (BSS) - a component of the IEEE
802.11 WLAN architecture. . MPSK passwords can be generated or user-created and are managed by ClearPass Policy Manager12. References:
https://blogs.arubanetworks.com/solutions/simplify-iot-authentication-with-multiple-pre-shared-keys/ 2
https://www.arubanetworks.com/techdocs/ClearPass/6.8/Guest/Content/AdministrationTasks1/Configuring-MPS

質問 # 52
正しく起動できない Aruba CX 6200 4 ノード VSF スタックスイッチをトラブルシューティングする必要があります。スイッチにアクセスできるようにするオプションを選択し、OS イメージと ServiceOS で使用できる起動オプションを確認します。

A. メンバー 2 RJ-45 コンソールポート
B. メンバー 2 スイッチ管理ポート
C. SSH を使用した導体管理ポート
D. 導体 USB-C コンソールポート

正解：D

解説：
Explanation
The option that allows you to access the switch and see the boot options available for OS images and ServiceOS is Conductor USB-C console port. This option provides direct access to ServiceOS, which is an operating system that runs on Aruba CX switches independently of AOS-CX Aruba Operating System CX (AOS-CX) is an operating system that runs on Aruba CX switches . ServiceOS provides low-level functions such as booting, firmware upgrades, password recovery, hardware diagnostics, switch stacking, and system recovery. ServiceOS can be accessed through one of two methods:
Conductor USB-C console port: This method allows you to connect your PC or laptop to the USB-C console port on any member switch in a VSF stack using a USB-C cable. This method provides direct access to ServiceOS without requiring any configuration or authentication on AOS-CX.
AOS-CX CLI: This method allows you to access ServiceOS through AOS-CX CLI using SSH or Telnet protocols. This method requires you to configure an IP address on AOS-CX and authenticate with your username and password.
To see the boot options available for OS images and ServiceOS, you need to access ServiceOS through Conductor USB-C console port and enter boot menu command at ServiceOS prompt.
The other options do not allow you to access the switch and see the boot options available for OS images and ServiceOS because:
Member 2 RJ-45 console port: This option allows you to connect your PC or laptop to the RJ-45 console port on any member switch in a VSF stack using an RJ-45 cable. This option provides direct access to AOS-CX CLI, not ServiceOS.
Member 2 switch mgmt port: This option allows you to connect your PC or laptop to the switch mgmt port on any member switch in a VSF stack using an Ethernet cable. This option provides indirect access to AOS-CX CLI through SSH or Telnet protocols, not ServiceOS.
Conductor mgmt port using SSH: This option allows you to connect your PC or laptop to the mgmt port on any member switch in a VSF stack using an Ethernet cable. This option provides indirect access to AOS-CX CLI through SSH protocol, not ServiceOS.
References:
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/serviceos/serviceos-overv
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/serviceos/access-serviceo
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/serviceos/boot-menu.htm

質問 # 53
......

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