ユーザーが Web ベースのアプリケーションをロードしようとしましたが、予期したログイン画面が表示されません。ヘルプ デスク アナリストは、次のコマンドを実行し、ユーザーの PC 上の出力を確認して問題のトラブルシューティングを行います。

次に、ヘルプ デスク アナリストはローカル PC で同じコマンドを実行します。
検出されている攻撃を最もよく説明しているものは次のうちどれですか?
正解:B
Explanation
DNS poisoning, also known as DNS spoofing or DNS cache poisoning, is a form of computer security hacking in which corrupt Domain Name System (DNS) data is introduced into the DNS resolver's cache, causing the name server to return an incorrect result record, such as an IP address. This results in traffic being diverted to the attacker's computer (or any other malicious destination).
DNS poisoning can be performed by various methods, such as:
Intercepting and forging DNS responses from legitimate servers
Compromising DNS servers and altering their records
Exploiting vulnerabilities in DNS protocols or implementations
Sending malicious emails or links that trigger DNS queries with poisoned responses According to CompTIA Security+ SY0-601 Exam Objectives 1.4 Given a scenario, analyze potential indicators to determine the type of attack:
"DNS poisoning, also known as DNS spoofing or DNS cache poisoning, is a form of computer security hacking in which corrupt Domain Name System (DNS) data is introduced into the DNS resolver's cache, causing the name server to return an incorrect result record." References: https://www.comptia.org/certifications/security#examdetails
https://www.comptia.org/content/guides/comptia-security-sy0-601-exam-objectives
https://www.cloudflare.com/learning/dns/dns-cache-poisoning/