11. The deadlock in a set of transaction can be determined by a. Read-only graph b. Wait graph c. Wait-for graph d. All of the mentioned

What is the difference between a ship operator and a rehash operator? A A rehash operator takes the output of a query subexpression and routes it to the input of a query plan on another node, while a ship operator hashes keys to machines.   B A rehash operator divides ranges across the machines, while a ship operator hashes keys to machines. (C) A ship operator takes the output of a query subexpression and routes it to the input of a query plan on another node, while a rehash operator hashes keys to machines. (D) A rehash operator performs load balancing across machines, while a hash operator hashes keys to machines

Answer the following questions about a scheduling system for assigning chefs to cooking slots. Within the system, every single chef and every single cooking slot is assigned an integer ID. These IDs start with 1 and increment by 1. That is, if there is a chef with ID equal to 6, there must be chefs with IDs equal to 1, 2, 3, 4 and 5. The same restriction applies to the cooking slot IDs. Note that any cooking slot not assigned a chef will be covered by Sara and her amazing cooking skills.  \begin{enumerate}     \item  Consider the chefs with IDs ranging from $p$ to $q$ inclusive, where $p \leq q$, and consider the cooking slots with IDs ranging from $r$ to $s$ inclusive, where $r \leq s$. How many distinct functions for assigning these chefs to cooking slots are there? (The chefs are the domain and the cooking slots are the codomain.)      \item Consider the chefs and cooking slots with IDs ranging from $p$ to $q$ inclusive, where $p \leq q$. How many distinct functions for assigning…