Which three features can be enabled for a new host cluster? (Choose three.)

Which of the following is a link-state routing protocol that uses a metric of hops?

A) IS-IS B) OSPF C) EIGRP D) RIP

Suppose we have a String object referenced by a variable called listing. Suppose we want a new String object that consists of the first 5 characters in listing. Which of the following lines of code will achieve this?

a) String prefix = listing.front(5); b) String prefix = listing.front(6); c) String prefix = listing.substring(1,5); d) String prefix = listing.substring(0,5); e) String prefix = listing.firstChars(5);