The OSPF routing protocol uses which of the following to verify that a link between two routers is active and the routers are communicating?
a. LSAs
b. “Hello” packets
c. ARP messages
d. ping
b. “Hello” packets
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A(n) _____________________ is a list collection has elements whose elements can be referenced using a numeric index.
a) ordered list b) unordered list c) indexed list d) linked list e) array
On many mainframes, the process of translating a logical I/O request to physical form is performed by a(n) __________.
a. access method b. interface c. port d. bus
Write an HTML page that has a button in it. When the cursor is over the button use JavaScript to change the background color of the button. Change the background color of the button again when the cursor is no longer over the button.
What will be an ideal response?
Describe the concept of a virtual switch.
What will be an ideal response?