Question 6 of 334Which cost types are supported in IS-IS? (Choose all that apply.)Question 7 of 334Which of the following statements about IS-IS Hello packets are true? (Choose all that apply.)Question 8 of 334Two Level-1 routers in different areas can establish a neighbor relationship.Question 9 of 334Which of the following attributes must be carried in an Update message?Question 10 of 334If a router receives two BGP routes carrying the following attributes, which of the following statements is true according to BGP route selection rules?