Consider schedules s3, s4, and s5 below. determine whether each schedule is strict, cascadeless, recoverable, or nonrecoverable. (determine the strictest recoverability condition that each schedule satisfies.) s3: r1 (x); r2 (z); r1 (z); r3 (x); r3 (y); w1 (x); c1; w3 (y); c3; r2 (y); w2 (z); w2 (y); c2; s4: r1 (x); r2 (z); r1 (z); r3 (x); r3 (y); w1 (x); w3 (y); r2 (y); w2 (z); w2 (y); c1; c2; c3; s5: r1 (x); r2 (z); r3 (x); r1 (z); r2 (y); r3 (y); w1 (x); c1; w2 (z); w3 (y); w2 (y); c3; c2;

Complete the sentence about a presentation delivery method

Why were most movies from the late 1890s until the early 1930s only filmed in black and white? there were only a few people who could afford the technology to produce color motion pictures back then. audiences did not want color motion pictures until later. the film used to make color motion pictures often overheated, which was a safety hazard, so it was generally not allowed. color films had to be hand-colored, frame by frame.

1. which of the following statements are true about routers and routing on the internet. choose two answers. a. protocols ensure that a single path between two computers is established before sending packets over it. b. routers are hierarchical and the "root" router is responsible for communicating to sub-routers the best paths for them to route internet traffic. c. a packet traveling between two computers on the internet may be rerouted many times along the way or even lost or "dropped". d. routers act independently and route packets as they see fit.