LFCS Question #404: Real Exam Question with Answer & Explanation

Question

Someone who wishes to receive an encrypted file has provided a key UID and a key fingerprint for verification to the data sender. Assuming that this key is on a public keyserver, what command will fetch the public key from the server?

Options

• Agpg findkeys UID
• Bgpg recvkeys UID
• Cgpg getkeys UID
• Dgpg refreshkeys UID

Explanation

To fetch a public key from a public keyserver using a UID or fingerprint, the gpg recvkeys command is the correct utility.

Common mistakes.

• A. gpg findkeys is not a standard GPG command for retrieving keys from a server; search-keys would be used for searching, and then recv-keys for retrieval.
• C. gpg getkeys is not a standard GPG command for retrieving keys from a server.
• D. gpg refreshkeys updates existing keys already present in the local keyring with potentially newer information from a key server, rather than fetching new ones.

Concept tested. GPG public key retrieval

Reference. https://gnupg.org/documentation/manuals/gnupg/Receive-Keys.html

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