Refer to the exhibit. What kind of activity occurs in the network?

The correct answer is C. DNS flood. In the exhibit, we see a DNS request over UDP (User Datagram Protocol) from the source IP 10.164.19.78 to the destination IP 88.71.128.11, which is on port 53. DNS typically uses UDP for its requests and responses. The key factor here is the use of UDP on port 53, which…

Submitted by minji_kr· Mar 6, 2026Network Intrusion Analysis

Question

Exhibit

Options

ADNS redirect attack
BUDP flood
CDNS flood
DTCP reset attack

How the community answered

(59 responses)

A
8% (5)
B
2% (1)
C
86% (51)
D
3% (2)

Explanation

In the exhibit, we see a DNS request over UDP (User Datagram Protocol) from the source IP 10.164.19.78 to the destination IP 88.71.128.11, which is on port 53. DNS typically uses UDP for its requests and responses. The key factor here is the use of UDP on port 53, which suggests A DNS flood is a type of Denial of Service (DoS) attack where attackers flood a DNS server with a large number of requests, overwhelming the server and potentially making it unable to respond to legitimate queries. In this case, the use of UDP traffic to port 53 could indicate a potential DNS

Topics

#DNS Flood#DoS Attack#Network Traffic Analysis#Attack Identification

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