Which of the following statements is TRUE of Dr King’s testing and conclusion?

Dr Billis assisting a SecureClient user, who cannot access resources in the VPN Domain. Dr
Billhas performed the following troubleshooting tasks.
Confirmed that the Network Interface Card, Ethernet cable, and router port are all functioning

properly.Reviewed the contents of the SecureClient machine’s Address Resolution Protocol table,
and confirmed entries are consistent with the machine addresses of other machines in the collision
domain.Used Ping, to confirm connectivity with the default gateway and upstream
router.Completed an FTP session to an Internet host.Tried to Telnet to a host in the VPN Domain,
this attempt failed.
Dr Billconcluded the problem is a SecureClient problem, and not a TCP/IP connectivity issue.
Which of the following statements is TRUE of Dr King’s testing and conclusion?

A.
Dr King’s tests and conclusion are valid. Because SecureClient operates between the
Presentation and Application Layers of the OSI model, the user’s inability to access resources is a
SecureClient problem.

B.
Dr King’s methodology is sound, but his tests are insufficient to determine whether or not the
problem is with SecureClient. A TCP/IP problem may exist between the upstream router and
target Enforcement Module.

C.
Dr King’s methodology is valid, and his conclusion is correct. Because Dr Billhas tested all
seven layers of the OSI Model on the SecureClient machine, the problem must be malfunctioning
SecureClient software.

D.
Dr King’s methodology is flawed. Client-side testing yields no useful information when
troubleshooting SecureClient issues. Eric should have initiated all tests from the Enforcement
Module.

E.
Dr King’s tests and conclusion are invalid. SecureClient operates between the Presentation and
Session Layers of the OSI Model, and Dr Billonly tested up to the Transport Layer.