1) which network device limits external traffic to the internal network?

A) Switch

B)Router

C) VPN

D) Firewall

E) Proxy

2) Which networking device extends an internal network beyond the security perimeter

a) Firewall

b) Proxy

c) VPN

d) Switch

e) Router

3) Which of the following are benefits of a micro kernel?

a) Easier to maintain

b) Efficient execution

c) dynamic code

d) mature code

4) A service oriented architecture (SOA) aligns services(web) with

a) technical strategy

b) business value

c) implementation effectiveness

d) location transparency