信頼できるCCT Routing and Switching 100-490日本語問題集PDF 2024年12月08日最近更新された問題 [Q43-Q66]

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信頼できるCCT Routing and Switching 100-490日本語問題集PDF 2024年12月08日最近更新された問題

必ず合格できるCisco 100-490日本語試験正確な74問題と解答あります

質問 # 43
エコー要求パケットをターゲットホストに送信し、エコー応答メッセージを待つコマンドはどれですか。

  • A. ping
  • B. connect
  • C. echo
  • D. access

正解:A


質問 # 44
ケーブルの一端のカラーワイヤーは、ケーブルの他端のカラーワイヤーと逆の順序になっています。この構成はどのケーブルを示していますか?

  • A. クロスオーバー
  • B. ストレートスルー
  • C. 同軸
  • D. ロール

正解:A


質問 # 45
シングルモード光ファイバーケーブルに関連する2つの機能はどれですか。 (2つ選択してください。)

  • A. マルチモードファイバーよりも減衰が高い
  • B. マルチモードファイバーより短い距離で動作
  • C. ガラス繊維の単一ストランドで構成されています
  • D. マルチモードファイバーよりも高い帯域幅を伝送
  • E. マルチモードファイバーよりもコストが低い

正解:C、D

解説:
The features associated with single-mode fiber-optic cable include:
Consists of a single strand of glass fiber: Single-mode fiber uses a single core (strand) of glass fiber to transmit light signals. This core is thinner than that of multimode fiber, allowing for greater transmission distances.
Carries a higher bandwidth than multimode fiber: Single-mode fiber can carry higher data rates over longer distances compared to multimode fiber. It is commonly used in long-haul communication links and high-speed networks.
Reference:
Single-mode vs. Multimode Fiber
Fiber Optic Cable Types


質問 # 46
USBサムドライブの2つの目的は何ですか? (2つ選択してください。)

  • A. システムログを保存する
  • B. PCとの間で構成ファイルをコピーする
  • C. ルーターのハードウェア情報を保存する
  • D. IOSイメージをPCとの間でコピーします
  • E. システムメモリサイズを増やす

正解:B、D


質問 # 47
Cisco Catalyst 3850シリーズスイッチを導入する場合、どの2つの動作モードから選択できますか?

  • A. インストールモードとバンドルモード
  • B. アクティブモードとスタンバイモード
  • C. 起動モードと実行モード
  • D. EXECモードとユーザーモード

正解:A


質問 # 48
RJ-45ストレートケーブルを使用するLANイーサネットデバイスの2つのペアはどれですか。 (2つ選択してください。)

  • A. ルーター間
  • B. スイッチからルーター
  • C. スイッチ間
  • D. サーバーへの切り替え
  • E. スイッチからハブ

正解:B、D

解説:
Questions no : 12 Verified answer: = B. switch-to-router, E. switch-to-server Switch-to-Router: A switch connects devices within a network by using MAC addresses to forward data to the correct destination. A router, on the other hand, connects multiple networks and uses IP addresses to determine the best path for the data packets. Connecting a switch to a router requires a straight-through cable because they are different types of devices12.
Switch-to-Server: Servers are the powerful computers that provide resources, data, services, or programs to the client machines in the network. When connecting a switch to a server, a straight-through cable is used because the switch and the server are different types of devices with different functions within the network12.


質問 # 49
リブート時に Cisco デバイス上で消去されるメモリのタイプはどれですか?

  • A. flash
  • B. NVRAM
  • C. DRAM
  • D. PVDM

正解:C

解説:
DRAM, or Dynamic Random-Access Memory, is the type of memory that is erased when a Cisco device is rebooted. DRAM is used to store the running configuration and routing tables of the device. Since DRAM is volatile memory, its contents are lost when the device is powered down or restarted. This is in contrast to non-volatile memory types like flash and NVRAM, which retain their contents even after a reboot1. Reference := Types of memory on a Cisco device - Study-CCNA


質問 # 50
TFTPは通常どのプロトコルを転送に使用しますか?

  • A. TCP
  • B. RSVP
  • C. HTTP
  • D. UDP

正解:D

解説:
TFTP, or Trivial File Transfer Protocol, is a simple protocol used for transferring files. Unlike other file transfer protocols, TFTP operates on top of the User Datagram Protocol (UDP), which is a connectionless protocol. This means that TFTP does not establish a persistent connection between the client and server, and it does not guarantee reliable delivery of packets, error checking, or correction. TFTP is typically used in scenarios where simplicity and minimal memory footprint are more critical than the need for reliable delivery, such as when booting a device over a network123. Reference := Wikipedia, GeeksforGeeks, PyNet Labs


質問 # 51
ネットワーク接続をテストするためにpingコマンドを実行するWindowsベースのプログラムとは何ですか?

  • A. ipconfig
  • B. cmd
  • C. 検索
  • D. 開始

正解:B


質問 # 52
SmartJackについて正しい2つの文はどれですか。 (2つ選択してください。)

  • A. チャネルテストを提供します。
  • B. 信号を再生成して、回線伝送による信号の劣化を補償します。
  • C. 信号変換を行います。
  • D. OSIモデルのレイヤー2で動作します。
  • E. ダイヤルインおよびダイヤルアウト接続の集中点として機能します。

正解:B、C

解説:
SmartJacks are specialized devices used in telecommunications, particularly for T1/E1 lines. Here's why the correct answers make sense:
Signal Conversion: SmartJacks can convert between different signaling types (e.g., AMI to B8ZS). This is necessary because different telecommunication lines may use varying signaling standards.exclamation Signal Regeneration: As signals travel over long distances, they can weaken and degrade.expand_more SmartJacks help regenerate the signal, ensuring that it maintains its strength and integrity throughout the transmission.expand_more Why other options are incorrect:
Concentration point: SmartJacks are not primarily used as concentration points for dial-in/out connections.exclamation This function is typically handled by modems or other specialized devices.exclamation Layer 2 operation: SmartJacks primarily operate at Layer 1 (Physical Layer) of the OSI model, focusing on the physical transmission of signals.
Channel Testing: While some SmartJacks may offer some basic channel testing capabilities, their primary functions are signal conversion and regeneration.
Reference:
SmartJack (Wikipedia): https://en.wikipedia.org/wiki/Smartjack


質問 # 53
400 Gbps イーサネット ポートをサポートする 2 つの Cisco Nexus 3400 シリーズ スイッチはどれですか? (2つお選びください。)

  • A. Cisco Nexus 3432D-S
  • B. Cisco Nexus 34180YC
  • C. Cisco Nexus 3408-S
  • D. Cisco Nexus 3464C
  • E. Cisco Nexus 34200YC-SM

正解:A、C

解説:
The Cisco Nexus 3432D-S and Cisco Nexus 3408-S are part of the Cisco Nexus 3400 Series switches that support 400-Gbps Ethernet ports. The Cisco Nexus 3432D-S is designed with 32 ports of 400G, providing high-density and high-throughput capabilities1. The Cisco Nexus 3408-S offers flexibility with 100G or 400G Line-Card Expansion Modules (LEMs), allowing for configurations with 32 ports of 400G2. These switches are engineered for data centers requiring high performance, low latency, and power efficiency, with the Cisco Nexus 3432D-S offering industry-leading performance-per-watt power efficiency at low latency1.


質問 # 54
保存された構成をRAMにコピーするのに有効なコマンドはどれですか。 (2つ選択してください。)

  • A. running-config tftpをコピーします
  • B. running-config startup-configをコピーします
  • C. tftp running-configをコピーします
  • D. startup-config running-configをコピーします
  • E. tftp startup-configをコピーします

正解:C、D


質問 # 55
TelnetとSSHについて正しい2つの文はどれですか。 (2つ選択してください。)

  • A. SSHは、通信に既知のTCPポート23を使用します。
  • B. セキュリティ上の理由から、TSHはSSHよりも優先されます。
  • C. Telnetは、ネットワークデバイスへの安全なリモートアクセス接続を提供するプロトコルです。
  • D. ルーターを再起動すると、Telnetネットワーク管理接続が切断されます。
  • E. SSHは、ネットワークデバイスへの安全なリモートアクセス接続を提供するプロトコルです。

正解:D、E

解説:
A . Correct. SSH, or Secure Shell, is indeed a protocol that provides a secure remote access connection to network devices. It encrypts the data to ensure secure transmission over insecure networks like the internet1.
C . Correct. Telnet connections are not secure and are terminated when a router reboots. This is because Telnet does not have any mechanism to maintain the connection in case of network interruptions or device reboots1.
B, D, and E are incorrect because: B. SSH uses TCP port 22 by default, not port 23, which is used by Telnet1. D . Telnet does not provide a secure connection; it transmits data in plain text, which can be intercepted easily1. E. SSH is preferred over Telnet for security reasons because it provides encrypted connections and authentication mechanisms, which Telnet does not1.
Reference :=
1: GeeksforGeeks - Difference between SSH and Telnet 2: phoenixNAP - Telnet vs. SSH: How Is SSH Different From Telnet? 3: Guru99 - Telnet vs SSH - Difference Between Them 4: Difference Between - Difference Between Telnet and SSH


質問 # 56
シスコの設定などの単純なテキストドキュメントを操作するには、どのWindowsベースのテキストエディタが適していますか?

  • A. Microsoft Excel
  • B. Microsoft Notepad
  • C. Microsoft Access
  • D. Microsoft Word

正解:B

解説:
Microsoft Notepad is the preferred text editor for working with Cisco configuration files and other simple text documents for several reasons:
Plain Text Focus: Notepad is designed specifically for plain text editing. It does not add any formatting, hidden characters, or metadata that could interfere with the configuration file's structure.
Cisco Syntax Compatibility: Cisco configurations rely on specific syntax and spacing. Notepad preserves these elements accurately.
Universality: Notepad is a basic text editor included in all versions of Windows, ensuring accessibility and eliminating the need for additional software.
Why other options are not ideal:
Microsoft Word: Word is a word processor and includes formatting, fonts, and other features that are not compatible with Cisco configuration files. This formatting can corrupt the configuration.
Microsoft Access: Access is a database management system, not suited for text file editing.
Microsoft Excel: Excel is a spreadsheet application and adds its own structure and formatting that conflicts with configuration file formats.


質問 # 57
Ciscoルーターのシリアル番号を特定する2つのコマンドはどれですか。 (2つ選択してください。)

  • A. 環境を表示
  • B. バージョンを表示
  • C. ショーラン
  • D. 在庫を表示
  • E. アーカイブを表示

正解:B、D


質問 # 58
正しいIPv6アドレス表記は何ですか?

  • A. 2001:0DB8::/128
  • B. 2001:0DB8:0::
  • C. 2001:0DB8::1:1:1:1:1
  • D. 2001:0DB8:130F:0000:0000:7000:0000:140B

正解:D

解説:
The correct IPv6 address notation follows the format of eight groups of four hexadecimal digits, separated by colons. The address must have exactly eight groups unless it uses the double colon (::) to represent consecutive groups of zero value. The double colon can only appear once in an address to avoid ambiguity.
Option A is incorrect because it includes a subnet mask (/128) which is not part of the actual address notation. Option B is incomplete as it does not contain enough groups and ends with a single colon. Option C has too many groups (nine instead of eight) and is therefore not a valid IPv6 address. Option D is the correct notation with eight groups of four hexadecimal digits, where necessary leading zeros are included.
Reference:
IPv6 Address Types, Notation, and Structure Explained1.
IPv6 address formats - IBM2. =========================


質問 # 59
Cisco IOSイメージのCiscoデバイスへのコピーを開始するコマンドはどれですか。

  • A. copy flash tftp
  • B. copy xmodem flash
  • C. copy tftp flash
  • D. copy tftp nvram

正解:C

解説:
The copy tftp flash command is used to download a Cisco IOS image from a TFTP (Trivial File Transfer Protocol) server and store it in the Flash memory of the Cisco device. Here's the breakdown of the command:
copy: Indicates a file transfer operation.
tftp: Specifies the use of the TFTP protocol.
flash: Specifies the destination as the flash memory of the Cisco device.
Why other options are incorrect:
copy tftp nvram: This would attempt to copy a file from a TFTP server to the NVRAM of the device. NVRAM is typically not the desired location for storing IOS images.
copy flash tftp: This command would copy a file from the local flash memory to a TFTP server (uploading).
copy xmodem flash: This would use the XMODEM protocol for the transfer, which is slower and less reliable than TFTP for Cisco IOS images.
https://en.wikipedia.org/wiki/Trivial_File_Transfer_Protocol


質問 # 60
コンフィギュレーションレジスタの値を設定する2つのコマンドはどれですか。 (2つ選択してください。)

  • A. router(config)#config-register 0x2102
  • B. router(config)#confreg 0x2102
  • C. rommon>confreg 0x2102
  • D. rommon>config-register 0x2102
  • E. router(config)#configuration-register 0x2102

正解:A、C


質問 # 61
コンフィギュレーションレジスタ値のブートフィールドを表すビットはどれですか。

  • A. 下位2ビット
  • B. 最上位の2ビット
  • C. 最上位4ビット
  • D. 下位4ビット

正解:D

解説:
The configuration register on Cisco devices is a 16-bit value, typically represented in hexadecimal notation (e.g., 0x2102). The lowest four bits (bits 0-3) of this value are designated as the boot field.
The Boot Field's Importance:
The boot field determines how the device will load its operating system (Cisco IOS) during the startup process. Here's a basic breakdown of common boot field values:
0x0: Stay at the ROMmon prompt.
0x1: Boot from ROM (often used for troubleshooting or recovery).
0x2 - 0xF: Load the operating system based on settings in the startup configuration (NVRAM) or from a network server if specified.
Example:
A configuration register value of 0x2102 indicates that the boot field is 0x2 (the last digit). This is a common default setting, instructing the device to load the Cisco IOS image from Flash memory.
Reference:
Cisco Configuration Register Detailed Explanation: [invalid URL removed] Configuration Register Settings (Cisco): https://networklessons.com/cisco/ccna-routing-switching-icnd1-100-105/configuration-register-cisco-ios


質問 # 62
ラップトップをCiscoルータのコンソールポートに接続するには、どのタイプのCiscoコンソールケーブルを使用しますか?

  • A. ロールオーバー
  • B. 繊維
  • C. クロスオーバー
  • D. ストレートスルー

正解:A

解説:
Rollover cables are specifically designed for connecting to the console ports on Cisco routers and switches. Here's why they are the right choice:
Pinout: Rollover cables have a reversed pinout compared to standard Ethernet cables. This matches the console port's wiring, allowing for configuration access.
Appearance: Rollover cables are often light blue in color to help distinguish them from standard Ethernet cables.
USB Adapter: Many modern laptops may not have a direct serial port. In this case, a rollover cable with a USB-to-serial adapter is used.
Why other options are incorrect:
Straight-through: Used for connecting unlike devices (e.g., switch to computer). They won't have the correct wiring for console connections.
Fiber: Used for high-speed, long-distance networks. Console ports use a serial-based connection, not fiber optics.
Crossover: Used to connect similar devices (e.g., switch to switch). The pinout is not the same as what a console port requires.


質問 # 63
シングルモード光ファイバーケーブルに関連する2つの機能はどれですか。 (2つ選択してください。)

  • A. マルチモードファイバーよりも減衰が高い
  • B. マルチモードファイバーより短い距離で動作
  • C. ガラス繊維の単一ストランドで構成されています
  • D. マルチモードファイバーよりも高い帯域幅を伝送
  • E. マルチモードファイバーよりもコストが低い

正解:C、D


質問 # 64
ROMMONからIPを介してCisco IOSイメージの転送を開始するコマンドはどれですか。

  • A. tftpdnld
  • B. Xmodem
  • C. copy tftp: flash:
  • D. copy flash: tftp:

正解:A


質問 # 65
Cisco Catalyst 3850 シリーズ スイッチを導入する際の動作モードの選択肢は何ですか?

  • A. ブート モードと実行モード
  • B. アクティブ モードとスタンバイ モード
  • C. インストール モードとバンドル モード
  • D. 実行モードとユーザーモード

正解:C

解説:
When deploying Cisco Catalyst 3850 Series switches, there are two modes of operation to choose from: Install mode and Bundle mode. Install mode is the default mode for the switch and uses a package-provisioning file named packages.conf to boot the switch. It allows for a more complete set of features and requires fewer resources upon boot1. Bundle mode, on the other hand, is similar to using traditional monolithic Cisco IOS images to boot the switch. It consumes more memory than Install mode because the packages are extracted from the bundle and copied to the RAM2. Cisco recommends using Install mode for operation due to its efficiency and feature set2.


質問 # 66
......

2024年最新の実際にある検証済みの100-490日本語問題集:https://jp.fast2test.com/100-490J-premium-file.html


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