CompTIA
CAS-003 · Question #487
CAS-003 Question #487: Real Exam Question with Answer & Explanation
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Question
A network administrator is concerned about a particular server that is attacked occasionally from hosts on the Internet. The server is not critical; however, the attacks impact the rest of the network. While the company's current ISP is cost effective, the ISP is slow to respond to reported issues. The administrator needs to be able to mitigate the effects of an attack immediately without opening a trouble ticket with the ISP. The ISP is willing to accept a very small network route advertised with a particular BGP community string. Which of the following is the BESRT way for the administrator to mitigate the effects of these attacks?
Options
- AUse the route protection offered by the ISP to accept only BGP routes from trusted hosts on
- BWork with the ISP and subscribe to an IPS filter that can recognize the attack patterns of the
- CAdvertise a /32 route to the ISP to initiate a remotely triggered black hole, which will discard
- DAdd a redundant connection to a second local ISP, so a redundant connection is available for
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