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Exam SY0-501 topic 1 question 9 discussion

Actual exam question from CompTIA's SY0-501

Question #: 9
Topic #: 1

A security engineer is configuring a system that requires the X.509 certificate information to be pasted into a form field in Base64 encoded format to import it into the system. Which of the following certificate formats should the engineer use to obtain the information in the required format?

A. PFX
B. PEM
C. DER
D. CER

Show Suggested Answer

Suggested Answer: B 🗳️

by Aksu1994 at May 3, 2019, 6:11 a.m.

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Katiekins

4 years, 1 month ago

Yep PEM Base64

upvoted 1 times

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Aarongreene

4 years, 3 months ago

In D.Gibson book page 462. CER = USED for Binary Certificates DER =ASCII used for ASCII certificates PEM= both( most commonly used certificate format and can be used for just about any cert. type.

upvoted 3 times

Texrax

4 years, 2 months ago

I have this book and confirmed this information is present.

upvoted 2 times

Heymannicerouter

4 years, 2 months ago

Gibson mixed up CER and DER on the book; it's actually DER for binary certs and CER for ASCII certs https://getcertifiedgetahead.com/security-sy0-501-study-guide-errata-page/

upvoted 3 times

Texrax

4 years, 2 months ago

That's great. Thank you!!

upvoted 1 times

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Lobizon

4 years, 1 month ago

Wow, thank you for this DER Binary and CER ASCII correction to comments above...and this link that corrects a lot of Errata.

upvoted 1 times

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Dragi

4 years, 3 months ago

PEM Base64 DER Binary CER Both Mike Mayers and Security+ Study Guide

upvoted 2 times

Texrax

4 years, 2 months ago

Double check these as it conflicts with D. Gibson.

upvoted 2 times

Texrax

4 years ago

Wish I could delete my comment. Dragi's comment is correct.

upvoted 3 times

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Tommy_Wang

4 years, 8 months ago

pem base64 coding

upvoted 1 times

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Hanzero

4 years, 9 months ago

PEM it is boiz

upvoted 3 times

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Jo3

5 years ago

B. Privacy Enhanced Mail. A common format for PKI certificates. It can use either CER (ASCII) or DER (binary) formats and can be used for almost any type of certificates. CER and DER formats are defined by the ITU-T in the X.690 standard. Darril Gibson - CompTIA Security+ Get Certified Get Ahead

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dinosan

5 years, 4 months ago

PEM The PEM extension is used for different types of X.509v3 files that contain ASCII (Base64) armored data prefixed with a -- BEGIN ... line. Source: Study Guide by Sybex (p.262)

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Elb

5 years, 5 months ago

B. A PEM file, which is a Base64 encoded DER file, is that same X. 509 certificate, but encoded in text, which (remember!) is represented as ASCII

upvoted 3 times

dieglhix

4 years, 9 months ago

can be either ASCII or BIN "PEM is derived from the Privacy Enhanced Mail format, but that is misleading. It implies that PEM-based certificates are used for email only. However, PEM-based certificates can be used for just about anything. They can be formatted as CER (binary files) or DER (ASCII files). They can also be used to share public keys within a certificate, request certificates from a CA as a CSR, install a private key on a server, publish a CRL, or share the full certificate chain."

upvoted 3 times