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| Section | Weight | Objectives |
|---|---|---|
| Vulnerability Management | 26% | - Vulnerability Response
|
| Incident Response and Management | 24% | - Incident Investigation
|
| Security Operations | 34% | - Security Operations and Architecture
|
| Reporting and Communication | 16% | - Reporting
|
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NEW QUESTION # 97
Several devices are added to a business network. Some of the new devices do not generate traffic during business hours. Which of the following scanning methods is the best way to identify the risk?
Answer: D
Explanation:
Active scanning directly probes network hosts and services to identify systems, open ports, and vulnerabilities. Because some of the new devices do not generate traffic during business hours, passive monitoring would not detect them. Actively sending probes ensures the devices are discovered and their potential security risks can be assessed even when they are otherwise idle.
NEW QUESTION # 98
A security operations center analyst is using the command line to display specific traffic.
The analyst uses the following command:
$tshark -r file.pcap -Y "http or udp"
Which of the following will the command line display?
Answer: B
Explanation:
The -r file.pcap argument instructs TShark to read packets from the specified capture file, while -Y applies a Wireshark display filter . The expression "http or udp" therefore displays packets recognized as HTTP or packets using UDP.
Traditional HTTP traffic is unencrypted and can be dissected directly as HTTP. HTTPS normally carries HTTP inside TLS encryption and therefore is not displayed merely because the filter specifies http. DNS commonly operates over UDP, particularly for standard queries and responses, so ordinary DNS traffic satisfies the udp portion of the expression. Consequently, B is the best answer in the context of the available choices.
A technical distinction is important: the expression does not mean "HTTP or DNS specifically." The udp portion matches UDP traffic generally, which can include protocols other than DNS. Nevertheless, within the examination scenario, the intended comparison is plaintext HTTP versus encrypted HTTPS together with standard UDP-based DNS.
Wireshark's documentation distinguishes display filters from capture filters, and TShark is the command-line network traffic analyzer within the Wireshark suite. CS0-004 places packet-analysis capabilities within Security Operations.
Study Guide Reference: Security Operations # Packet Analysis # Wireshark/TShark # PCAP Analysis # Display Filters # HTTP, UDP, and DNS.
NEW QUESTION # 99
A security analyst uses a full pcap solution to extract all traffic from the last two days associated with the
10.213.4.27 file server.
This file server is under investigation due to concerns about potential data exfiltration using Domain Name System (DNS) traffic.
Which of the following commands should the analyst use to extract any potentially leaked data from the suspicious.pcap file?
Answer: A
Explanation:
Option D applies the correct packet-filtering logic to isolate DNS-related traffic associated with the suspected server . The -r suspicious.pcap option directs tcpdump to read packets from the existing PCAP rather than capture live traffic. The expression port 53 and host 10.213.4.27 then limits output to packets involving the specified system and DNS's conventional port 53.
This is directly relevant to suspected DNS exfiltration. Attackers can encode data within DNS queries or responses, including unusually long subdomains or other manipulated DNS fields. Isolating the target's port
53 traffic dramatically reduces the dataset and allows the analyst to examine relevant queries and responses for encoded or anomalous information.
strings suspicious.pcap | grep treats the capture primarily as raw printable data and does not accurately perform protocol-aware packet filtering. The Zeek option searches file.log, which is focused on files observed in network traffic and is not the most direct location for DNS-query analysis. The Snort syntax shown is also inappropriate for the required extraction workflow.
The essential skill is translating an investigative hypothesis- possible DNS exfiltration by a known host - into a precise PCAP filter.
Study Guide Reference: Security Operations # Network Traffic Analysis # Full Packet Capture # tcpdump # BPF Filters # DNS Analysis # Data Exfiltration Detection.
NEW QUESTION # 100
Which of the following best explains the purpose of the Pyramid of Pain in threat intelligence?
Answer: B
Explanation:
The Pyramid of Pain ranks indicators by how difficult they are for an attacker to replace. IP addresses and hashes are easy to change, while tools and TTPs are much harder.
NEW QUESTION # 101
An analyst reviews the following list of vulnerabilities:
The analyst determines that CVE-2023-8524 is the highest priority for remediation and should be patched immediately. Which of the following did the analyst use to determine the priority of remediation efforts?
Answer: B
Explanation:
The analyst used context awareness to prioritize remediation. Although CVE-2023-8524 does not have the highest CVSS score or the highest number of affected systems, it is weaponized and located on an external-facing asset. External exposure significantly increases the likelihood of exploitation and potential business impact, making it the highest-priority vulnerability to patch.
NEW QUESTION # 102
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