Your company has decided that security is very important and wants to add a second security check when workers are logging in to their computers. The company issued key fobs to all the employees. The key fob generates a code for them to enter when logging in to the computer. What type of security is your company using?

Show that there is a language a ⚆ {0, 1} â— with the following properties: 1. for all x â a, |x| ≤ 5. 2. no dfa with fewer than 9 states recognizes a. hint: you don’t have to define a explicitly; just show that it has to exist. count the number of languages satisfying (1) and the number of dfas satisfying (2), and argue that there aren’t enough dfas to recognize all those languages. to count the number of languages satisfying (1), think about writing down all the strings of length at most 5, and then to define such a language, you have to make a binary decision for each string about whether to include it in the language or not. how many ways are there to make these choices? to count the number of dfas satisfying (2), consider that a dfa behaves identically even if you rename all the states, so you can assume without loss of generality that any dfa with k states has the state set {q1, q2, . . , qk}. now think about how to count how many ways there are to choose the other four parts of the dfa.

Amain idea is supported, explained, or expanded on with a numbers b. a concluding statement c. details d. a topic sentence. im e paragraphs reset nex next

Melissa needs to add a topic to an email that she will send to her teacher. choose the name of the field where she should type her topic.