Home CASP+ CAS-003 CASP+ CAS-003 – Question 260

CASP+ CAS-003 – Question 260

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A university’s help desk is receiving reports that Internet access on campus is not functioning. The network administrator looks at the management tools and
sees the 1Gbps Internet is completely saturated with ingress traffic. The administrator sees the following output on the Internet router:

cmd

The administrator calls the university’s ISP for assistance, but it takes more than four hours to speak to a network engineer who can resolve the problem. Based on the information above, which of the following should the ISP engineer do to resolve the issue?

A. The ISP engineer should null route traffic to the web server immediately to restore Internet connectivity. The university should implement a remotely triggered black hole with the ISP to resolve this more quickly in the future.
B. A university web server is under increased load during enrollment. The ISP engineer should immediately increase bandwidth to 2Gbps to restore Internet connectivity. In the future, the university should pay for more bandwidth to handlespikes in web server traffic.
C. The ISP engineer should immediately begin blocking IP addresses that are attacking the web server to restore Internet connectivity. In the future, the university should install a WAF to prevent this attack from happening again.
D. The ISP engineer should begin refusing network connections to the web server immediately to restore Internet connectivity on campus. The university should purchase an IPS device to stop DDoS attacks in the future.

Correct Answer: D

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