GSEC Question #345: Real Exam Question with Answer & Explanation

Question

Exhibit

Options

• Aa895bac9c3<M75d5fa7fb5820b35568cedb5dc23
• B54771b4r<d7tKb4382e670b4465O265206cf09e9
• Ca39bed3C496fC764fc518d3e2d56f7d0f4C625fb
• D93c1 ffbd22ebcad798886fb4aa46fa 357b23d80a
• Eaa40739f465ded2245872b1e4972e33d5bObb1cb
• F494a 192859f 244c69d5bdc46255d b44l9e 7d051 f
• Gd3a21675a8f 19518d8b8f3cefOf6a21 del da6cc7
• H84611 eOb6d59045bOcf 189fca9bc760afdf b7372
• I8873 5f5cb7CCf7b2d 137944ab1 2d 116808310500
• J2cadod58fbd0345c2ced336f9a3ae6f43cf355fi

Explanation

SHA1 hashing produces a 40-character hex digest unique to a file's contents, used to verify file integrity on a target system.

Common mistakes.

• A. This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
• B. This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
• C. This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
• D. This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
• E. This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
• F. This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
• H. This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
• I. This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.
• J. This hash value does not match the SHA1 digest computed from the /bin/ls binary on the target system.

Concept tested. SHA1 file integrity verification on Linux binaries

Reference. https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/certutil

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