If a technician was going to test connectivity on port 25, which of the following application type is being checked?

Security should be enabled on workbooks containing macros because they can be used to spread ________

Fill in the blank(s) with the appropriate word(s).

Consider a five-node directed ring graph, as shown in Figure 10.2. Identify a matrix op- erator using (a) the weight matrix, (b) the in-degree directed Laplacian, and (c) the out- degree directed Laplacian of the graph that shifts a signal one step left. That is, for a signal [1 , 2 , 3 , 4 , 5] T , the shifted version should be [2 , 3 , 4 , 5 , 1] T