Which of the following is used as a secure way to log into an EC2 Linux Instance?

The correct answer is B. Key pairs. The AWS Documentation mentions the following Key pairs consist of a public key and a private key. You use the private key to create a digital signature, and then AWS uses the corresponding public key to validate the signature. Key pairs are used only for Amazon EC2 and Amazon…

Submitted by takeshi77· Mar 6, 2026Infrastructure Security

Question

Options

AIAM User name and password
BKey pairs
CAWS Access keys
DAWS SDK keys

How the community answered

(61 responses)

A
10% (6)
B
84% (51)
C
2% (1)
D
5% (3)

Explanation

The AWS Documentation mentions the following Key pairs consist of a public key and a private key. You use the private key to create a digital signature, and then AWS uses the corresponding public key to validate the signature. Key pairs are used only for Amazon EC2 and Amazon Option A.C and D are all wrong because these are not used to log into EC2 Linux Instances https://docs.aws.amazon.com/eeneral/latest/er/aws-sec-cred-types.html

Topics

#EC2#key pairs#SSH authentication#Linux access

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