Refer to the exhibit. When a Docker image is built using this Dockerfile, which two statements are valid on Cisco IOx 1.8 and before? (Choose two.)

Question

Exhibit

Options

• AIt builds an image that can be executed on all Cisco platforms.
• BIt builds a Docker image that cannot be used directly on Cisco IOx.
• CIt compiles a "hello world" program in C.
• DIt creates two separate images.
• EIt builds an IOx package that can be deployed directly.

• A
  8% (2)
• B
  71% (17)
• D
  4% (1)
• E
  17% (4)

Explanation

Options B and C are correct because the Dockerfile compiles a C "hello world" program (likely using a multi-stage build with gcc), and on Cisco IOx 1.8 and earlier, raw Docker images cannot be deployed directly - they must first be converted into an IOx application package using a tool like ioxclient, which produces a .tar package suitable for the platform.

Option A is wrong because Docker images are architecture-specific (e.g., x86_64 vs. ARM); a single image will not run on all Cisco platforms. Option D is wrong because multi-stage Dockerfiles produce one final image - intermediate build stages are discarded, not saved as separate images. Option E is wrong because the output of docker build is a Docker image, not an IOx package; the extra packaging step (via ioxclient) is what would make it deployable, and that step is absent here.

Memory tip: Think of IOx 1.8 as "bring your own wrapper" - Docker gives you the image, but Cisco IOx 1.8 and before refuse to open the box until you re-wrap it as an IOx package. Only newer IOx versions support native Docker deployment directly.

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