Write Datalog statements to answer the queries below. a. (15 pts) Find the names, last names, and addresses of all pairs of roommates who also take at least one class together in the same semester

Raveena is making a professional presentation for a newly launched product of her company. she wants to incorporate the following features in her presentation. a) to add serial numbers in each slide b) to add name of her company on top of each slide. c) to add the picture of her product on the second slide(the picture of her product is stored on her computer) write the commands/features of her presentation tool using which she can perform the above operations.

Explain why it is reasonable to assume that receiving 3 duplicate acks in tcp is an indication that the network is not currently congested.

Aspeed limit sign that says "night" indicates the legal speed between sunset and sunrise.