[2024年01月13日]HPE6-A85日本語試験問題集を試そう！ベストHPE6-A85日本語試験問題
検証済みのHPE6-A85日本語テスト問題集で正確な62問題と解答
質問 # 20
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 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。
- B. 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。
- C. 6300M スタック上のサブネットに SVl を作成します。
- D. 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。
正解：C
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 # 21
展示を参照してください。
指定されたトポロジでは、Aruba CX 8325 スイッチのペアが、アクティブ ゲートウェイを使用する VSX スタック内にあります。クライアントが VSX をデフォルト ゲートウェイとして使用してアクセス スイッチに接続されている場合、VSX ペアの仮想 IP の性質と動作は何ですか?
- A. 仮想 IP はプライマリ VSX スイッチでアクティブです
仮想フローティング IP は障害が発生した場合にフェイルオーバーします。 - B. 仮想 IP は両方の CX スイッチでアクティブです
- C. 仮想 IP は VSX と同期された SVI IP アドレスを使用します
正解：A
解説：
Explanation
Virtual Switching Extension (VSX) is a feature that allows two Aruba CX switches to operate as a single logical device with a single control plane and data plane. VSX provides high availability, scalability, and simplified management for campus and data center networks3. In VSX, one switch is designated as the primary switch and the other as the secondary switch. The primary switch owns and responds to ARP Address Resolution Protocol. ARP is a communication protocol used for discovering the link layer address, such as a MAC address, associated with a given internet layer address, typically an IPv4 address. This mapping is a critical function in the Internet protocol suite. requests for the virtual IP address of the VSX pair4. The virtual IP address is used as the default gateway for clients connected to the access switch. If the primary switch fails, the secondary switch takes over the virtual IP address and continues to forward traffic for the clients5.
References: 3
https://www.arubanetworks.com/techdocs/AOS-CX_10_04/UG/Content/cx-ug/vsx/vsx-overview.htm 4
https://www.arubanetworks.com/techdocs/AOS-CX_10_04/UG/Content/cx-ug/vsx/vsx-ip-addressing.htm 5
https://www.arubanetworks.com/techdocs/AOS-CX_10_04/UG/Content/cx-ug/vsx/vsx-failover.htm
質問 # 22
スパニングツリー (STP) 設定を備えた 2 つの独立した ArubaOS-CX 6300 スイッチが、ポート 1/1/1 と 1/1/2 の間で 2 本のケーブルで相互接続されています。 4 つのポートすべてに「no shutdown」および「no routing」コマンドがあります。 STP はどのように転送しますかそれともこれらのポート上のトラフィックを破棄しますか?
- A. MAC アドレスが小さいスイッチは両方のポートで転送し、MAC アドレスが大きいスイッチは両方のポートで転送します。
- B. MAC アドレスが小さいスイッチは 1 つのポートで廃棄し、MAC アドレスが大きいスイッチは両方のポートで転送します。
- C. MAC アドレスが小さいスイッチは両方のポートで転送し、MAC アドレスが大きいスイッチは 1 つのポートで廃棄します。
- D. MAC アドレスが小さいスイッチは 1 つのポートで廃棄し、MAC アドレスが大きいスイッチは 1 つのポートで廃棄します。
正解：D
解説：
Explanation
The way that STP Spanning Tree Protocol. STP is a network protocol that ensures a loop-free topology for any bridged Ethernet local area network by preventing redundant paths between switches or bridges from creating loops that cause broadcast storms, multiple frame transmission, and MAC table instability. STP creates a logical tree structure that spans all of the switches in an extended network and blocks any redundant links that are not part of the tree from forwarding data packets . will forward or discard traffic on these ports is as follows:
STP will elect a root bridge among the two switches based on their bridge IDs, which are composed of a priority value and a MAC address. The switch with the lower bridge ID will become the root bridge and will forward traffic on all its ports.
STP will assign a role and a state to each port on both switches based on their port IDs, which are composed of a priority value and a port number. The port with the lower port ID will become the designated port and will forward traffic, while the port with the higher port ID will become the alternate port and will discard traffic.
In this scenario, since both switches have two cables connected between ports 1/1/1 and 1/1/2, there will be two possible paths between them, creating a loop. To prevent this loop, STP will block one of these paths by discarding traffic on one of the ports on each switch.
Assuming that both switches have the same priority value (default is 32768), the switch with the lower MAC address will have the lower bridge ID and will become the root bridge. The root bridge will forward traffic on both ports 1/1/1 and 1/1/2.
Assuming that both ports have the same priority value (default is 128), port 1/1/1 will have a lower port ID than port 1/1/2 on both switches because it has a lower port number. Port 1/1/1 will become the designated port and will forward traffic, while port 1/1/2 will become the alternate port and will discard traffic.
Therefore, the switch with the lower MAC address will discard traffic on one port (port 1/1/2), while the switch with the higher MAC address will also discard traffic on one port (port 1/1/2).
References: 3 https://en.wikipedia.org/wiki/Spanning_Tree_Protocol
質問 # 23
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. 発信元 AP と宛先 AP による共同決定
- B. クライアントデバイス
- C. アルバセントラル
- D. 仮想コントローラー
正解：B
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 # 24
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 # 25
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. 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
- B. 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
- C. 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
- D. 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
正解：C
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 # 26
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. 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
- C. WPA 4-Way Handshake を使用しません。
- D. 認証局によって生成された X 509 証明書を使用します
正解：B
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 # 27
WPA 4 ウェイ ハンドシェイク機能を正しい順序でリストします。
正解：
解説：
Proves knowledge of the PMK
Exchanges messages for generating PTK
Distributes an encrypted GTK to the client
Sets first initialization vector (IV)
質問 # 28
適切な QoS 概念とその定義を一致させます。
正解：
解説：
Explanation
QoS Quality of Service (QoS) 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 can improve network performance, reduce latency, increase throughput, and prevent congestion. concept and its definition. Here is my answer:
QoS Concept:
Best Effort Service
Class of Service
Differentiated Services
WMM ====================== Definition:
d) A method where traffic is treated equally in a first-come, first-served manner a) A method for classifying network traffic at Layer 2 by marking 802.1Q VLAN Ethernet frames with one of eight service classes b) A method for classifying network traffic at Layer 3 by marking packets with one of 64 different service classes c) A method for classifying network traffic using access categories based on the IEEE 802.11e QoS standard Short But Comprehensive Explanation of Correct Answer Only: The correct match between QoS concept and its definition is as follows:
Best Effort Service: This is a method where traffic is treated equally in a first-come, first-served manner without any prioritization or differentiation. This is the default service level for most networks and applications that do not have specific QoS requirements or guarantees. Best Effort Service does not provide any assurance of bandwidth, delay, jitter, or packet loss.
Class of Service: This is a method for classifying network traffic at Layer 2 by marking 802.1Q VLAN Ethernet frames with one of eight service classes (0 to 7). These service classes are also known as IEEE
802.1p priority values or PCP Priority Code Point (PCP) is a 3-bit field in the 802.1Q VLAN tag that indicates the priority level of an Ethernet frame . Class of Service allows network devices to identify and handle different types of traffic based on their priority levels. Class of Service is typically used in LAN Local Area Network (LAN) is a network that connects devices within a limited geographic area, such as a home, office, or building environments where Layer 2 switching is predominant.
Differentiated Services: This is a method for classifying network traffic at Layer 3 by marking packets with one of 64 different service classes (0 to 63). These service classes are also known as DiffServ Code Points (DSCP) DiffServ Code Point (DSCP) is a 6-bit field in the IP header that indicates the service class of a packet . Differentiated Services allows network devices to identify and handle different types of traffic based on their service classes. Differentiated Services is typically used in WAN Wide Area Network (WAN) is a network that connects devices across a large geographic area, such as a country or continent environments where Layer 3 routing is predominant.
WMM: This is a method for classifying network traffic using access categories based on the IEEE
802.11e QoS standard. WMM stands for Wi-Fi Multimedia and it is a certification program developed by the Wi-Fi Alliance to enhance QoS for wireless networks. WMM defines four access categories (AC): Voice, Video, Best Effort, and Background. These access categories correspond to different priority levels and contention parameters for wireless traffic. WMM allows wireless devices to identify and handle different types of traffic based on their access categories.
References: https://en.wikipedia.org/wiki/Quality_of_service
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_dfsrv/configuration/xe-16/qos-dfsrv-xe-16-book/qos-dfsr
https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/81831-qos-wlan.html
https://www.wi-fi.org/discover-wi-fi/wi-fi-certified-wmm
質問 # 29
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. クライアントマッチ
- B. クライアント ウェーブ
- C. エアウェイブ
- D. エアマッチ
正解：D
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 # 30
スタック LED がオレンジ色にゆっくり点滅する場合、何を示していますか?
- A. スタッキングを同期中です。お待ちください。
- B. スタッキングモードが選択されています
- C. 1 つのスイッチにスタッキング障害があります。
- D. ポートにスタッキング障害がある スタッキングモードが選択されていない
正解：B
解説：
Explanation
A slow amber-flashing Stack-LED indicates that stacking mode is selected on the switch. This means that the switch is ready to join a stack or form a new stack if no other switches are present.
References:https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/1-ove
質問 # 31
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. 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。
- C. 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
- D. 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
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 # 32
レイヤ 3 ルート ループを軽減するためにレイヤ 3 IPv4 パケット ヘッダーで送信されるのはどれですか?
- A. Protocol
- B. Time To Live
- C. チェックサム
- D. 宛先IP
正解：B
解説：
Explanation
The field in a Layer 3 IPv4 packet header that is used to mitigate Layer 3 route loops is Time To Live (TTL).
TTL is an 8-bit field that indicates the maximum number of hops that a packet can traverse before being discarded. TTL is set by the source device and decremented by one by each router that forwards the packet. If TTL reaches zero, the packet is dropped and an ICMP Internet Control Message Protocol (ICMP) Internet Control Message Protocol (ICMP) is a network protocol that provides error reporting and diagnostic functions for IP networks. ICMP is used to send messages such as echo requests and replies (ping), destination unreachable, time exceeded, parameter problem, source quench, redirect, etc. ICMP messages are encapsulated in IP datagrams and have a specific format that contains fields such as type, code, checksum, identifier, sequence number, data, etc. ICMP messages can be verified by using commands such as ping , traceroute , debug ip icmp , etc . message is sent back to the source device. TTL is used to mitigate Layer 3 route loops because it prevents packets from circulating indefinitely in a looped network topology. TTL also helps to conserve network resources and avoid congestion caused by looped packets.
The other options are not fields in a Layer 3 IPv4 packet header because:
Checksum: Checksum is a 16-bit field that is used to verify the integrity of the IP header. Checksum is calculated by the source device and verified by the destination device based on the values of all fields in the IP header. Checksum does not mitigate Layer 3 route loops because it does not limit the number of hops that a packet can traverse.
Protocol: Protocol is an 8-bit field that indicates the type of payload carried by the IP datagram. Protocol identifies the upper-layer protocol that uses IP for data transmission, such as TCP Transmission Control Protocol (TCP) Transmission Control Protocol (TCP) is a connection-oriented transport layer protocol that provides reliable, ordered, and error-checked delivery of data between applications on different devices . TCP uses a three-way handshake to establish a connection between two endpoints , and uses sequence numbers , acknowledgments , and windowing to ensure data delivery and flow control . TCP also uses mechanisms such as retransmission , congestion avoidance , and fast recovery to handle packet loss and congestion . TCP segments data into smaller units called segments , which are encapsulated in IP datagrams and have a specific format that contains fields such as source port , destination port , sequence number , acknowledgment number , header length , flags , window size , checksum , urgent pointer , options , data , etc . TCP segments can be verified by using commands such as telnet , ftp , ssh , debug ip tcp transactions , etc . , UDP User Datagram Protocol (UDP) User Datagram Protocol (UDP) is a connectionless transport layer protocol that provides
質問 # 33
Aruba Central を使用した手動スイッチプロビジョニングに関する記述はどれが正しいですか?
- A. 手動プロビジョニングには DHCP と DNS が必要です
- B. 手動プロビジョニングには DHCP も DNS も必要ありません
- C. 手動プロビジョニングには DHCP が必要ですが、DNS は必要ありません
- D. 手動プロビジョニングには DHCP は必要ありませんが、DNS が必要です
正解：B
解説：
Explanation
Manual provisioning is a method to add switches to Aruba Central without using DHCP or DNS. It requires the user to enter the switch serial number, MAC address, and activation code in Aruba Central, and then configure the switch with the same activation code and Aruba Central's IP address.
References:https://help.central.arubanetworks.com/latest/documentation/online_help/content/devices/switches/pr
質問 # 34
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. テンポラル キー完全性プロトコル (TKIP)
- B. 日和見無線暗号化 (OWE)
- C. 有線同等プライバシー (WEP)
- D. 複数の事前共有キー (MPSK)
正解：D
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 # 35
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