Cisco Updated 200-201 Exam Questions and Answers by syeda

The regular expression that matches both “color” and “colour” is colo?ur. In this expression, the ? denotes that the preceding character u is optional, meaning it may appear zero or one time. This allows the expression to match both the American spelling “color” and the British spelling “colour”.

References := Understanding regular expressions is fundamental in various computing tasks, including cybersecurity operations. The Cisco Cybersecurity Operations Fundamentals (CBROPS) material covers the use of regular expressions for searching through logs and data, which is a critical skill for a cybersecurity analyst.

The executable file is identified in the “name” section of the exhibit, which lists the file name “VAC-Bypass-Loader.exe”. This indicates that the file is an executable, as denoted by the “.exe” extension commonly associated with executable files in Windows operating systems.

References: The information provided is based on standard practices for identifying executable files within cybersecurity analysis reports and is consistent with Cisco’s cybersecurity documentation.

 Volatile data is information that is stored in memory or other temporary storage that is lost when the power is turned off or lost. According to NIST SP 800-86, login sessions and swap files are considered volatile because they exist in the system’s memory and can be lost or changed rapidly

When a stream cipher like RC4 is used twice with the same key, it becomes vulnerable to a ciphertext-only attack. In this type of attack, the attacker has access to several ciphertexts that are encrypted with the same key but does not know anything about the plaintexts. By analyzing these ciphertexts, an attacker can gain insights into the plaintext or even recover parts or all of it. References := Cisco Cybersecurity source documents or study guide (I need to search for specific references as I don’t have direct access to Cisco’s proprietary content)