GIAC
GSLC · Question #113
GSLC Question #113: Real Exam Question with Answer & Explanation
The correct answer is C. Denial-of-Service. A Denial-of-Service attack deliberately overwhelms one network device with excessive traffic while starving others, matching the flooding-and-starvation pattern observed on the two BGP routers.
Question
You work as a Network Administrator for Marioxnet Inc. You have the responsibility of handling two routers with BGP protocol for the enterprise's network. One of the two routers gets flooded with an unexpected number of data packets, while the other router starves with no packets reaching it. Which of the following attacks can be a potential cause of this?
Options
- ASpoofing
- BPacket manipulation
- CDenial-of-Service
- DEavesdropping
Explanation
A Denial-of-Service attack deliberately overwhelms one network device with excessive traffic while starving others, matching the flooding-and-starvation pattern observed on the two BGP routers.
Common mistakes.
- A. Spoofing involves forging source IP addresses to impersonate another host, and while it can support other attacks, it does not by itself cause one router to be flooded while another is starved of traffic.
- B. Packet manipulation refers to altering the content or headers of in-transit packets, which affects data integrity but does not produce a traffic flooding or starvation effect on routers.
- D. Eavesdropping is a passive interception attack that monitors network traffic without modifying it, causing no disruption to packet flow or router resource consumption.
Concept tested. DoS attack impact on BGP network infrastructure
Reference. https://www.cisco.com/c/en/us/about/security-center/guide-ddos-defense.html
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