Tell me about an unsuccessful problem you faced and why you couldn't complete it.

"While it's hard to admit, I have failed several times during my career. One of the more recent failures was when I was assigned to develop a more efficient enclosure for our company's new computing device. Even though enclosures were not my main area of expertise, I accepted the assignment with the idea that I could learn the skills needed to complete the task. Unfortunately, the enclosure I developed did not allow the fan and heat sinks to properly cool the system. The project was turned over to somebody with more experience in this area. I learned to acknowledge my lack of experience and skills required to complete an assignment early so that my management team could either reassign the project or provide me with the training needed to complete the job. I can apply these lessons to my work here at Cisco."