Select the true statement(s) regarding a virtual circuit. a. both analog and digital networks take advantage of the virtual circuit concept
b. virtual circuits require the assignment of dedicated physical links during network connection
c. regarding the efficient use of physical links, virtual circuits are more efficient than analog circuits
d. both a and b are true statements"

Write a method in the heapintpriorityqueue class called merge that accepts another heapintpriorityqueue as a parameter and adds all elements from the other queue into the current queue, maintaining proper heap order such that the elements will still come out in ascending order when they are removed. your code should not modify the queue passed in as a parameter. (recall that objects of the same class can access each other's private fields.)

Lisa’s company, abc ltd., lost its biggest client and is now facing a financial crunch. most of her colleagues have resigned, but lisa decides to stay with the company and assist the management in overcoming the financial situation. which quality is lisa demonstrating? a. self-management b. cooperativeness c. responsibility d. loyalty

The open systems interconnection (osi) reference model: defines standards for many aspects of computing and communications within a network. is a generic description for how computers use multiple layers of protocol rules to communicate across a network. defines standards for wireless local area network (wlan) communication protocols. details the advantages and disadvantages of various basic network cabling options.