N10-009日本語のPDF問題集で2025年03月25日最近更新された問題
N10-009日本語試験問題有効なN10-009日本語問題集PDF
質問 # 30
シミュレーション
ネットワーク技術者がアクセス レイヤー スイッチを交換し、接続されたデバイスが正しいネットワークに接続できるように再構成する必要があります。
説明書
スイッチ 1 とスイッチ 3 の適切なポートをクリックして、正しい設定を確認または再構成します。
* 各デバイスが特定のデバイスのみにアクセスするようにする
正しく関連付けられたネットワーク。
* 未使用のスイッチポートをすべて無効にします。
フォールトトレラント接続を必要とする
スイッチ間。
必要な変更のみ行ってください
上記の要件を完了してください。
正解：
解説：
See the solution below in Explanation
Explanation:
To provide a complete solution for configuring the access layer switches, let's proceed with the following steps:
Identify the correct VLANs for each device and port.
Enable necessary ports and disable unused ports.
Configure fault-tolerant connections between the switches.
Configuration Details
Switch 1
Port 1 Configuration (Uplink to Core Switch)
Status: Enabled
LACP: Enabled
Speed: 1000
Duplex: Full
VLAN Configuration: Tagged for VLAN60, VLAN90, VLAN120, VLAN150, VLAN220 Port 2 Configuration (Uplink to Core Switch) Status: Enabled LACP: Enabled Speed: 1000 Duplex: Full VLAN Configuration: Tagged for VLAN60, VLAN90, VLAN120, VLAN150, VLAN220 Port 3 Configuration (Server Connection) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN90 (Servers) Port 4 Configuration (Server Connection) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN90 (Servers) Port 5 Configuration (Wired Users and WLAN) Status: Enabled LACP: Enabled Speed: 1000 Duplex: Full VLAN Configuration: Tagged for VLAN60, VLAN120, VLAN150 Port 6 Configuration (Wired Users and WLAN) Status: Enabled LACP: Enabled Speed: 1000 Duplex: Full VLAN Configuration: Tagged for VLAN60, VLAN120, VLAN150 Port 7 Configuration (Voice and Wired Users) Status: Enabled LACP: Enabled Speed: 1000 Duplex: Full VLAN Configuration: Tagged for VLAN60, VLAN90, VLAN120, VLAN220 Port 8 Configuration (Voice, Printers, and Wired Users) Status: Enabled LACP: Enabled Speed: 1000 Duplex: Full VLAN Configuration: Tagged for VLAN60, VLAN90, VLAN120, VLAN220 Switch 3 Port 1 Configuration (Unused) Status: Disabled LACP: Disabled Port 2 Configuration (Unused) Status: Disabled LACP: Disabled Port 3 Configuration (Connection to Device) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN1 (Default) Port 4 Configuration (Connection to Device) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN1 (Default) Port 5 Configuration (Connection to Device) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN1 (Default) Port 6 Configuration (Connection to Device) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN1 (Default) Port 7 Configuration (Connection to Device) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN1 (Default) Summary of Configurations Ports 1 and 2 on Switch 1 are configured as trunk ports with VLAN tagging enabled for all necessary VLANs.
Ports 3 and 4 on Switch 1 are configured for server connections with VLAN 90 untagged.
Ports 5, 6, 7, and 8 on Switch 1 are configured for devices needing access to multiple VLANs.
Unused ports on Switch 3 are disabled.
Ports 3, 4, 5, 6, and 7 on Switch 3 are enabled for default VLAN1.
Ensure All Switches and Ports are Configured as per the Requirements:
Core Switch Ports should be configured as needed for uplinks to Switch 1.
Ensure LACP is enabled for redundancy on trunk ports between switches.
By following these configurations, each device will access only its correctly associated network, unused switch ports will be disabled, and fault-tolerant connections will be established between the switches.
質問 # 31
パススルー プラグを使用して Cat 8 ケーブルを配線した後、電気技師は接続されたケーブルでクロストークが頻繁に発生していることに気付きました。電気技師が最初に実行する必要があるトラブルシューティング手順は次のうちどれですか。
- A. コネクタに接触または露出しているワイヤがないか検査します。
- B. 接続を再度終了します。
- C. 接続されているデバイスのデフォルト設定を復元します。
- D. エリア内の無線周波数干渉を確認します。
正解：A
解説：
Cross talk can often be caused by improper termination of cables. The first step in troubleshooting should be to inspect the connectors for any wires that might be touching or exposed. Ensuring that all wires are correctly seated and that no conductors are exposed can help reduce or eliminate cross talk. This step should be taken before attempting to re-terminate the connections or check for other sources of interference.References:
CompTIA Network+ study materials.
質問 # 32
3 層階層モデルのボトムアップ アプローチにおけるコンポーネントの正しい順序は次のどれですか。
- A. コア、ルート、ディストリビューション
- B. アクセス、配布、コア
- C. アクセス、コア、ルーフ
- D. コア、スパイン、リーフ
正解：B
解説：
The three-tier hierarchical model in network design consists of three layers: access, distribution, and core. The access layer is where devices like PCs and printers connect to the network. The distribution layer aggregates the data received from the access layer switches before it is transmitted to the core layer, which is responsible for high-speed data transfer and routing. This approach improves scalability and performance in larger networks. References: CompTIA Network+ Exam Objectives and official study guides.
質問 # 33
情報システムが中断した場合に備えて、ウォーム サイトの最適な例として次の施設のどれが挙げられますか。
- A. データを復元するためのパブリッククラウドサービスとプライベートクラウドサービスの組み合わせ
- B. 完全な電気インフラは整っているが、現場に顧客のデバイスがない
- C. 完全なインフラストラクチャは整っているが、サイトに現在のデータがない
- D. 現場のインフラストラクチャ、ソフトウェア、データの一部
正解：C
解説：
Explanation: A warm site typically has a full infrastructure ready, but it lacks the most up-to-date data or is not immediately operational. It requires some configuration or data restoration to become fully functional.
質問 # 34
IT マネージャーは、メッシュ ネットワークで 10 個のサイトを接続する必要があります。各サイトは、プロビジョニング時間を短縮して保護する必要があります。次のテクノロジのうち、この要件を最もよく満たすものはどれですか。
- A. VXLAN
- B. SD-WAN
- C. NFV
- D. VPN
正解：B
解説：
Definition of SD-WAN:
Software-Defined Wide Area Network (SD-WAN) is a technology that simplifies the management and operation of a WAN by decoupling the networking hardware from its control mechanism. It allows for centralized management and enhanced security.
Benefits of SD-WAN:
Reduced Provisioning Time: SD-WAN enables quick and easy deployment of new sites with centralized control and automation.
Security: Incorporates advanced security features such as encryption, secure tunneling, and integrated firewalls.
Scalability: Easily scales to accommodate additional sites and bandwidth requirements.
Comparison with Other Technologies:
VXLAN (Virtual Extensible LAN): Primarily used for network virtualization within data centers.
VPN (Virtual Private Network): Provides secure connections but does not offer the centralized management and provisioning efficiency of SD-WAN.
NFV (Network Functions Virtualization): Virtualizes network services but does not specifically address WAN management and provisioning.
Implementation:
SD-WAN solutions are implemented by deploying edge devices at each site and connecting them to a central controller. This allows for dynamic routing, traffic management, and security policy enforcement.
Reference:
CompTIA Network+ course materials and networking solution guides.
質問 # 35
次のどれがアプリケーション層の特性ですか?
- A. アドレス変換を実行します。
- B. 転送中のデータを暗号化します。
- C. パケット配信には他のレイヤーに依存します。
OB。パケット損失を独立してチェックします。
正解：C
解説：
* Introduction to OSI Model:
* The OSI model is a conceptual framework used to understand network interactions in seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.
* Application Layer:
* The application layer (Layer 7) is the topmost layer in the OSI model. It provides network services directly to end-user applications. This layer facilitates communication between software applications and lower layers of the network protocol stack.
* Reliance on Other Layers:
* The application layer relies on the transport layer (Layer 4) for data transfer across the network.
The transport layer ensures reliable data delivery through protocols like TCP and UDP.
* The network layer (Layer 3) is responsible for routing packets to their destination.
* The data link layer (Layer 2) handles node-to-node data transfer and error detection.
* The physical layer (Layer 1) deals with the physical connection between devices.
* Explanation of the Options:
* A. It relies upon other layers for packet delivery: This is correct. The application layer depends on the lower layers (transport, network, data link, and physical) for the actual delivery of data packets.
* B. It checks independently for packet loss: This is incorrect. Packet loss detection is typically handled by the transport layer (e.g., TCP).
* C. It encrypts data in transit: This is incorrect. Encryption is typically handled by the presentation layer or at the transport layer (e.g., TLS/SSL).
* D. It performs address translation: This is incorrect. Address translation is performed by the network layer (e.g., NAT).
* Conclusion:
* The application layer's primary role is to interface with the end-user applications and ensure that data is correctly presented to the user. It relies on the underlying layers to manage the actual data transport and delivery processes.
References:
* CompTIA Network+ guide covering the OSI model and the specific roles and functions of each layer (see page Ref 10†How to Use Cisco Packet Tracer).
質問 # 36
予防措置を講じた後、トラブルシューティング方法論で次に実行する手順はどれですか?
- A. ソリューションを実装します。
- B. 原因を特定するために理論をテストします。
- C. システム機能を検証します。
- D. 行動計画を立てます。
正解：C
解説：
After implementing a solution and putting preventive measures in place, the next step is to verify that the system is functioning correctly. This ensures that the issue has been fully resolved.
質問 # 37
従業員が誤って顧客のデータを削除した場合、次のどれが違反になりますか?
- A. 脆弱性
- B. 誠実さ
- C. 可用性
- D. 機密保持
正解：C
解説：
Explanation: Availability refers to ensuring that data is accessible when needed. If a customer's data is accidentally deleted, it impacts availability, as the data can no longer be accessed.
質問 # 38
スプリット トンネル VPN のコスト効率の面での利点は次のどれですか?
- A. 監視により、会社のネットワーク上の安全でないマシンが検出されます。
- B. クラウドベースのトラフィックは会社のネットワーク外に流れます。
- C. 会社のインターネット接続には、より多くの帯域幅が必要です。
- D. Web トラフィックは Web フィルターによってフィルター処理されます。
正解：B
解説：
A split-tunnel VPN allows certain traffic (e.g., cloud-based services) to bypass the VPN and go directly to the Internet. This reduces the amount of traffic that needs to traverse the company's VPN and Internet connection, conserving bandwidth and reducing costs. It also means that not all traffic is subject to the same level of inspection or filtering, which can improve performance for cloud-based services.References: CompTIA Network+ study materials.
質問 # 39
ネットワーク管理者は、ESSID を使用してワイヤレス ネットワークを構成しています。SSID と比較した場合の ESSID のユーザー メリットは次のどれですか。
- A. 高度なセキュリティ
- B. アクセスポイント間のローミング
- C. より強力なワイヤレス接続
- D. スループットの向上
正解：B
解説：
An Extended Service Set Identifier (ESSID) allows multiple access points to share the same SSID, enabling seamless roaming for users. This means that users can move between different access points within the same ESSID without losing connection or having to reauthenticate. This provides a better user experience, especially in large environments such as office buildings or campuses.
Reference: CompTIA Network+ study materials.
質問 # 40
サイト間接続を提供する最も安全な方法はどれですか?
- A. IPsec
- B. GRE
- C. VXLAN
- D. IKE
正解：A
解説：
IPsec (Internet Protocol Security) is the most secure way to provide site-to-site connectivity. It provides robust security services, such as data integrity, authentication, and encryption, ensuring that data sent across the network is protected from interception and tampering. Unlike other options, IPsec operates at the network layer and can secure all traffic that crosses the IP network, making it the most comprehensive and secure choice for site-to-site VPNs.References: CompTIA Network+ study materials and NIST Special Publication
800-77.
質問 # 41
次のどれが BGP を使用する最も適切な理由を表していますか?
- A. 再収束時間の改善
- B. 別のISPとルーターの更新を交換する
- C. LAN内のループを防ぐ
- D. レイヤ3スイッチとのルートの共有
正解：B
解説：
BGP (Border Gateway Protocol) is used for routing data between different ISPs, making it essential for the functioning of the internet. Its primary use is for exchanging routing information between autonomous systems, especially different ISPs. Preventing loops within a LAN is handled by protocols like Spanning Tree Protocol (STP), while improving reconvergence times and sharing routes with a Layer 3 switch are functions of other protocols or internal mechanisms.
Reference:
The CompTIA Network+ training emphasizes BGP's role in the exchange of routing information across different ISPs and autonomous systems.
質問 # 42
次のクラウド サービス モデルのうち、データ センターをクラウドに移行する際に顧客による初期費用が最も高くなる可能性が高いのはどれですか。
- A. サービスとしてのネットワーク
- B. サービスとしてのソフトウェア
- C. サービスとしてのインフラストラクチャ
- D. サービスとしてのプラットフォーム
正解：C
質問 # 43
ネットワーク エンジニアは、スイッチと LAN に接続されたルータの間に新しい IDS を実装したいと考えています。
エンジニアは、IDS をゲートウェイのライン上に配置することで遅延を発生させたくありません。エンジニアは、IDS がすべてのパケットを損失なく確認できるようにしたいと考えています。エンジニアが IDS を実装するのに最適な方法は、次のうちどれですか。
- A. ポートミラーを使用します。
- B. ネットワーク タップを使用します。
- C. プロトコル アナライザーを使用します。
- D. Nmap ソフトウェアを使用します。
正解：A
解説：
To ensure that an IDS sees all packets without any loss and without introducing latency, the best approach is to use a port mirror, also known as a SPAN (Switched Port Analyzer) port. Port mirroring copies network packets seen on one switch port (or an entire VLAN) to another port where the IDS is connected. This method allows the IDS to monitor traffic passively without being in the direct path of network traffic, thus avoiding any additional latency.
Reference: CompTIA Network+ Certification Exam Objectives - Network Security section.
質問 # 44
システム管理者は、ユーザーがブラウザで Linux Web サーバーにアクセスできないのに、サーバーの IP に ping できる理由を調査しています。サーバーはオンラインで、Web サーバー プロセスは実行されており、スイッチへのリンクは確立されています。
管理者が最初にサーバー上で実行する必要があるコマンドはどれですか?
- A. tcpdump
- B. トレースルート
- C. アルペジオ
- D. ネットスタット
正解：D
解説：
The netstat command provides information about network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. Running netstat on the server can help the administrator verify that the web server process is listening on the expected port (e.g., port 80 for HTTP or port 443 for HTTPS) and that there are no issues with network connections. This is a crucial first step in diagnosing why the web server is not accessible via a browser.References: CompTIA Network+ study materials.
質問 # 45
会社の本社と支店を安全に接続するには、次のどれを実装する必要がありますか?
- A. サイト間VPN
- B. クライアントレスVPN
- C. スプリットトンネルVPN
- D. フルトンネルVPN
正解：A
解説：
Site-to-Site VPN: A site-to-site VPN is used to securely connect two networks, such as a company's headquarters and a branch location, over the internet. This type of VPN creates a secure tunnel for data transmission, ensuring confidentiality and integrity.
Split-tunnel VPN (A): Allows some traffic to bypass the VPN tunnel, which may not secure all communications.
Clientless VPN (B): Used for individual users to access the network without VPN client software.
Full-tunnel VPN (C): Typically used for individual user traffic rather than connecting two networks.
質問 # 46
ネットワーク管理者は、2 台のルーターをポイントツーポイント構成で接続し、IP スペースを節約する必要があります。管理者は次のどのサブネットを使用する必要がありますか?
- A. /28
- B. /24
- C. /30
- D. /26
正解：C
解説：
Using a /30 subnet mask is the most efficient way to conserve IP space for a point-to-point connection between two routers. A /30 subnet provides four IP addresses, two of which can be assigned to the router interfaces, one for the network address, and one for the broadcast address. This makes it ideal for point-to-point links where only two usable IP addresses are needed.
Reference: CompTIA Network+ study materials and subnetting principles.
質問 # 47
接続の問題をトラブルシューティングする際に、初級ネットワーク管理者には、まずホストの TCP/IP スタックをテストするようにという明確な指示が与えられます。ネットワーク管理者は、次のコマンドのどれを実行する必要がありますか?
- A. 192.168.1.1 にpingを実行
- B. 169.254.1.1 にping
- C. 172.16.1.1 にpingする
- D. 127.0.0.1 にping
正解：D
解説：
The loopback address 127.0.0.1 is used to test the TCP/IP stack of the local machine. Pinging this address confirms whether the local system's networking stack is functioning correctly.
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質問 # 48
安全な電子メールに使用されるポートは次のどれですか?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
解説：
Port 587 is used for secure email submission. This port is designated for message submission by mail clients to mail servers using the SMTP protocol, typically with STARTTLS for encryption.
Port 25: Traditionally used for SMTP relay, but not secure and often blocked by ISPs for outgoing mail due to spam concerns.
Port 110: Used for POP3 (Post Office Protocol version 3), not typically secured.
Port 143: Used for IMAP (Internet Message Access Protocol), which can be secured with STARTTLS or SSL/TLS.
Port 587: Specifically used for authenticated email submission (SMTP) with encryption, ensuring secure transmission of email from clients to servers.
Network Reference:
CompTIA Network+ N10-007 Official Certification Guide: Discusses email protocols and ports, including secure email transmission.
Cisco Networking Academy: Provides training on securing email communications and the use of appropriate ports.
Network+ Certification All-in-One Exam Guide: Explains email protocols, ports, and security considerations for email transmission.
質問 # 49
建物内のワイヤレス ネットワーク カバレッジの有効性を説明するために作成されたものはどれですか。
- A. ヒートマップ
- B. サービスレベル契約
- C. レイヤー3ネットワーク図
- D. 論理図
正解：A
解説：
* Definition of Heat Maps:
* A heat map is a graphical representation of data where individual values are represented by colors. In the context of wireless networking, a heat map shows the wireless signal strength in different areas of a building.
* Purpose of a Heat Map:
* Heat maps are used to illustrate the effectiveness of wireless networking coverage, identify dead zones, and optimize the placement of access points (APs) to ensure adequate coverage and performance.
* Comparison with Other Options:
* Logical Diagram: Represents the logical connections and relationships within the network.
* Layer 3 Network Diagram: Focuses on the routing and IP addressing within the network.
* Service-Level Agreement (SLA): A contract that specifies the expected service levels between a service provider and a customer.
* Creation and Use:
* Heat maps are created using specialized software or tools that measure wireless signal strength throughout the building. The data collected is then used to generate a visual map, guiding network administrators in optimizing wireless coverage.
References:
* CompTIA Network+ certification materials and wireless network planning guides.
質問 # 50
ネットワーク管理者は、プライマリ ルートに障害が発生した場合に備えてバックアップ ルートを設定したいと考えています。ルータには動的ルーティング プロトコルがインストールされていません。管理者はこのタスクを実行するために、次のルーティング機能のどれを選択する必要がありますか。
- A. リンクステートフラッディング
- B. 隣接関係
- C. ホップ数
- D. 管理距離
正解：D
解説：
Introduction to Administrative Distance
Administrative distance (AD) is a value used by routers to rank routes from different routing protocols. AD represents the trustworthiness of the source of the route. Lower AD values are more preferred. If a router has multiple routes to a destination from different sources, it will choose the route with the lowest AD.
Static Routes and Backup Routes
When a dynamic routing protocol is not used, static routes can be employed. Static routes are manually configured routes. To ensure a backup route, multiple static routes to the same destination can be configured with different AD values.
Configuring Static Routes with Administrative Distance
The primary route is configured with a lower AD value, making it the preferred route. The backup route is configured with a higher AD value. In the event of the primary route failure, the router will then use the backup route.
Example Configuration:
plaintext
Copy code
ip route 192.168.1.0 255.255.255.0 10.0.0.1 1
ip route 192.168.1.0 255.255.255.0 10.0.0.2 10
In the above example, 192.168.1.0/24 is the destination network.
10.0.0.1 is the next-hop IP address for the primary route with an AD of 1.
10.0.0.2 is the next-hop IP address for the backup route with an AD of 10.
Verification:
After configuration, use the show ip route command to verify that the primary route is in use and the backup route is listed as a candidate for use if the primary route fails.
Reference:
CompTIA Network+ guide explains the concept of administrative distance and its use in static routing configuration (see page Ref 9 Basic Configuration Commands).
質問 # 51
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