The write-ahead logging (WAL) protocol simply means that Select one: a. the log record for an operation should be written before the actual data is written b. writing of a data item should be done ahead of any logging operation c. all log records should be written before a new transaction begins execution d. the log never needs to be written to disk

Describe in pseudocode an algorithm that given an integer n and a linked list of elements increases the linked list by a factor of n by replacing each element in the original list with n copies of that element. for example, if l: [18, 7, 4, 24, 11] and n = 3 the resulting list should be l: [18, 18, 18, 7, 7, 7, 4, 4, 4, 24, 24, 24, 11, 11, 11]. if the value of n is less than or equal to 0, the list should be empty after the call. what’s the running time of your algorithm?

On early television stations, what typically filled the screen from around 11pm until 6am? test dummies test patterns tests testing colors

Before you record your own voice, you should a. record other people's voices b. warm up and practice difficult names c. listen to your favorite songs d. read a transcript of a good radio news segment