QuestionQ249

Application Deployment and Security

An application needs SSL certificates that are signed by an intermediate CA certificate. The .crt files must be accessible to the application:

  • The root CA certificate is root_certificate.crt.
  • The intermediate CA certificate is intermediate_certificate.crt.
  • The application-specific SSL certificate is crl_certificate.crt.

Which Bash command creates the certificate bundle as a .pem file?

  • A cat intermediate_certificate.crt root_certificate.crt >certificate_bundle.pem
  • B cat crl certificate.crt intermediate certificate.crtroot certificate.crt > certificate bundle.pem
  • C cat root certificate.crt intermediate certificate.crtcrl certificate.crt > certificate bundle.pem
  • D cat root certificate.crt intermediate certificate.crt >certificate bundle.pem
Explanation

A PEM certificate chain is ordered from the subject (application or leaf) certificate to its issuer certificates: the application certificate first, followed by the intermediate CA certificate, and ending with the root CA certificate. Concatenating those files in that order creates the required bundle.

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