CCST-Networking日本語 無料問題集「Cisco Certified Support Technician (CCST) NetworkingExam (CCST-Networking日本語版)」
小規模オフィスのコンピューターは companypro.net にアクセスできません。コンピューターの 1 台で ipconfig コマンドを実行します。結果は図に示されています。
ルーターにアクセスできるかどうかを確認する必要があります。
どのコマンドを使用すればよいですか? 各ドロップダウン リストから正しいオプションを選択してコマンドを完了します。
ルーターにアクセスできるかどうかを確認する必要があります。
どのコマンドを使用すればよいですか? 各ドロップダウン リストから正しいオプションを選択してコマンドを完了します。
正解：
Explanation:
To determine if you can reach the router, you should use thepingcommand followed by the IP address of the router. Thepingcommand is a network utility used to test the reachability of a host on an Internet Protocol (IP) network and to measure the round-trip time for messages sent from the originating host to a destination computer.
The Default Gateway in theipconfigresults is typically the router's IP address in a home or small office network. In this case, the Default Gateway is192.168.0.1, which is the address you would ping to check connectivity to the router.
References:=
* How to Use the Ping Command
* Testing Network Connectivity with the Ping Command
To determine if you can reach the router, you should use thepingcommand with the IP address of the router.
* Command:ping
* Target:192.168.0.1
So, the completed command is:
* ping 192.168.0.1
Step by Step Comprehensive and Detailed Explanation:
* ping: The ping command sends ICMP Echo Request messages to the target IP address and waits for an Echo Reply. It is commonly used to test the reachability of a network device.
* 192.168.0.1: This is the IP address of the default gateway (the router) as shown in theipconfigoutput.
Pinging this address will help determine if the computer can communicate with the router.
References:
* Using the ping Command: ping Command Guide
小規模オフィスのコンピューターを保護するためにネットワーク ファイアウォールを使用する予定です。
ファイアウォールに関する各ステートメントについて、True または False を選択します。
注意: 正しい選択ごとに部分的なポイントが付与されます。
ファイアウォールに関する各ステートメントについて、True または False を選択します。
注意: 正しい選択ごとに部分的なポイントが付与されます。
正解：
Explanation:
* A firewall can direct all web traffic to a specific IP address.
* True: Firewalls can be configured to perform Network Address Translation (NAT) and port forwarding, which can direct all web traffic (typically on port 80 and 443) to a specific internal IP address.
* A firewall can block traffic to specific ports on internal computers.
* True: Firewalls can be configured with access control lists (ACLs) or rules to block traffic to specific ports on internal computers, enhancing security by restricting unwanted or harmful traffic.
* A firewall can prevent specific apps from running on a computer.
* False: Firewalls typically control traffic flow and do not prevent specific applications from running on a computer. Application control is usually managed by endpoint security software or application control systems.
* Directing Web Traffic: Firewalls can manage traffic redirection using NAT and port forwarding rules to route web traffic to designated servers or devices within the network.
* Blocking Specific Ports: Firewalls can enforce security policies by blocking or allowing traffic based on port numbers, ensuring that only permitted traffic reaches internal systems.
* Application Control: While firewalls manage network traffic, preventing applications from running typically requires software specifically designed for endpoint protection and application management.
References:
* Understanding Firewalls: Firewall Capabilities
* Network Security Best Practices: Network Security Guide