Quick Answer
The answer is lateral movement preparation because successive outbound SMB connections to multiple IP addresses on port 445 within a short time frame indicate scanning for accessible SMB shares, a classic precursor to moving laterally across a network. Port 445 is the standard port for SMB, and a rapid burst of outbound connections to many distinct hosts suggests an attacker is probing for open shares to pivot to other systems. On the Microsoft Security Operations Analyst SC-200 exam, this pattern tests your ability to distinguish lateral movement from data exfiltration (which favors HTTP/HTTPS) or C2 beaconing (which uses ports 80/443). A common trap is confusing this with broad reconnaissance, but the specific SMB protocol and successive outbound nature narrow it to lateral movement prep. Memory tip: think “SMB = Spread, Move, Breach” — rapid SMB outbound means the attacker is spreading to breach more hosts.
This SC-200 practice question tests your understanding of perform threat hunting. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
During a hunt, you find a device that made successive outbound connections to multiple IP addresses on port 445 (SMB) within a short time. Which type of activity does this pattern most likely indicate?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Data exfiltration
Why wrong: Data exfiltration usually uses HTTP/HTTPS or DNS, not SMB.
Lateral movement preparation
Scanning for SMB shares is a common lateral movement technique.
Command and control beaconing
Why wrong: C2 usually uses HTTP/HTTPS or DNS, not SMB.
Internal reconnaissance
Why wrong: Reconnaissance is broad; SMB scanning specifically targets lateral movement.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Lateral movement preparation
Port 445 is used for SMB. Rapid successive connections to many IPs on SMB suggests scanning for open SMB shares, often a precursor to lateral movement. Option A (data exfiltration) typically uses HTTP/HTTPS. Option C (C2 beaconing) uses common ports like 80/443. Option D (reconnaissance) is broad; the specific pattern points to lateral movement via SMB.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Data exfiltration
Lateral movement preparation
Why this is correct
Scanning for SMB shares is a common lateral movement technique.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
Command and control beaconing
Internal reconnaissance
Why it's wrong here
Reconnaissance is broad; SMB scanning specifically targets lateral movement.
Common exam traps
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SC-200 NAT questions on configuration and troubleshooting.
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FAQ
Perform threat hunting — This question tests Perform threat hunting — Static NAT maps one inside address to one outside address..
The correct answer is: Lateral movement preparation — Port 445 is used for SMB. Rapid successive connections to many IPs on SMB suggests scanning for open SMB shares, often a precursor to lateral movement. Option A (data exfiltration) typically uses HTTP/HTTPS. Option C (C2 beaconing) uses common ports like 80/443. Option D (reconnaissance) is broad; the specific pattern points to lateral movement via SMB.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SC-200 NAT questions on configuration and troubleshooting.
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Static NAT maps one inside address to one outside address.
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Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A threat hunter runs this KQL query to find devices making many outbound SMB connections. The result shows a device 'DC01' connecting to over 100 different IPs on port 445. What is the most likely explanation?
easyWhy D: A domain controller (DC01) making many outbound SMB connections to unique IPs is typical for normal activity like Group Policy processing or logon scripts. Option A (malware) is possible but less likely given it's a DC. Option C (scanning) is possible but not most likely. Option D (data exfiltration) is unlikely. The correct answer is B: normal DC behavior.
Last reviewed: Jun 21, 2026
This SC-200 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SC-200 exam.
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