Assume a user reports difficulty reaching the company$$s web site. You can ping the web

site$$s IP address and get a result, but you cannot ping the site using its DNS name. what

could be the problem?

a$)$ The DNS server is down.

b$)$ The network cable is unplugged.

c$)$ The firewall is blocking DNS requests.

d$)$ The web site$$s MAC address is not correct.