Which of the following statements about sequence diagrams is wrong?
a. this is a request from the object sending the message to the object receiving the message. the request is for the receiver to carry out one of its (the receiver’s) operations. usually, this entails the sender waiting for the receiver to carry out that operation. because the sender waits for the receiver (that is, "synchs up" with the receiver), this
message is also referred to as synchronous..
b. uml signifies the synchronous message type with a filled
arrowhead at the end of a solid line.
c. another kind of message is asynchronous. with this one,
the sender transfers control to the receiver and doesn’t wait
for the operation to complete.
d. the symbol for the return message is an openstick
arrowhead with a solid line.

Consider the simple 3-station assembly line illustrated below, where the 2 machines at station 1 are parallel, i.e., the product only needs to go through one of the 2 machines before proceeding to station 2.what is the throughput time of this process?

Complete the sentence about a presentation delivery method

You have been supporting csm tech publishing's windows server 2016 server network for over a year. the office has two windows server 2016 servers running active directory and a number of other roles. management has informed you that a small sales office is opening in the same building three floors up. the sales manager wants to install a sales application on a server located in the sales office. this server will have limited physical security because there's no special room dedicated for it, which means it will be accessible to non-it personnel and visitors. you're considering installing windows server 2016 server core on the new server because accessing its console regularly probably won't be necessary, and this server will be managed from one of the other csm tech publishing servers. what are the benefits and drawbacks of using server core for this branch office? what are some things you should do to set up this server management environment?