13. Which of the following statements about VPNs are true? (Select two.)

a.There are both intranet VPNs and extranet VPNs.

b.It uses tunnelling, which encapsulates but does not encrypt.

c.The lack of cost savings is usually made up by data confidentiality.

d.Data encryption is accomplished with either IPsec or MPPE.

14. Greene City Interiors has its website go offline after their traffic spikes by 3,000 per cent after getting nearsimultaneous requests from all over the world. What is the most accurate way of categorizing this attack?

a.Reflective DoS

b.ICMP echo attack

c.DDoS

d.DoS

15. A ________ provides BYOD NAC for employees, whereas a ________ may be made available for non-employees.

a.Guest network, quarantine network

b.Non-persistent agent, persistent agent

c.Persistent agent, non-persistent agent

d.Quarantine network, guest network