Wireshark WCNA Practice Exam Questions & Answers
5 Free Questions
· Last reviewed: September 8, 2026
· Prepared & Reviewed by the ValidExamDumps Editorial Team
Exam Facts
Wireshark WCNA Exam Details
Key details for this exam, checked against the published exam outline
100
Practice Questions (Our Bank)
120 minutes
Exam Duration
USD 299
Exam Fee
- Exam Code
- WCNA
- Full Name
- Worldwide Certified Network Analyst (WCNA) Certification
- Issuing Body
- Protocol Analysis Institute, Inc.
- Question Format (Our Bank)
- Multiple Choice
- Passing Score
- Pass/Fail with equated scoring values per question
- Delivery
- KRYTERION High-stake Online Secure Testing (HOST) centre locations or online proctored
- Eligibility
- None specified
- Validity
- 3 years from successful exam completion, then recertification exam required
Practice Questions
Free WCNA Practice Questions
Each question shows the correct answer and an explanation of why it is right
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Every question and its answer is checked by our WCNA exam
preparation team, who also write the explanation shown with each one.
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Refer to the exhibit.
Which statement about the Capture Options window shown is correct?
Correct Answer:
B
Explanation
When you apply a display filter in Wireshark, the Status Bar at the bottom of the window shows you two numbers. The first tells you how many packets were captured in total. The second shows how many packets match your current display filter. This dual display helps you understand both the full picture and what you are currently viewing. Understanding how the Status Bar reports this information is essential for working effectively with display filters.
Refer to the exhibit.
Which statement about the highlighted capture filter is correct?
Correct Answer:
A
Explanation
Wireshark allows you to customize the Packet List pane by reordering columns. You can click and drag any column header to move it left or right to a new position. This customization helps you organize the information in a way that works best for your analysis needs. Knowing how to adjust the column layout is a core customization skill for efficient network analysis work.
Which statement about the TCP recovery process is true?
Correct Answer:
D
Explanation
FTP uses port 21 for commands, but FTP data transfers happen on port 20. The capture filter 'tcp port 21' only captures command channel traffic. To capture both FTP command and data channel traffic, you would need a filter like 'tcp port 20 or tcp port 21'. A capture filter must account for both ports involved in FTP communication to get the complete picture of FTP activity.
Which traffic characteristic is often seen when analyzing database applications that transfer individual records across the network?
Correct Answer:
A
Explanation
The *REF* indicator in the Time column does not mean a packet is marked. Marked packets are identified differently in Wireshark. The *REF* notation actually indicates something different in the packet's time-related metadata. Understanding what different symbols and notations mean in the Time column is important for correctly interpreting packet information during analysis.
Wireshark can be used to capture, reassemble and playback encrypted VoIP conversations.
Correct Answer:
B
Explanation
DNS does only resolve IP addresses to host names. DNS is a naming system that translates human-readable domain names into IP addresses, but it also performs the reverse operation of resolving IP addresses back to host names through reverse DNS lookups. Both forward and reverse resolution are fundamental to how DNS works. However, the question states DNS can only resolve IP addresses to host names, which is technically the reverse lookup function. The core DNS service is translating names to addresses.
Domain 1: Network Analysis and Wireshark Fundamentals
Evaluate foundational principles of network analysis including the purpose of analysis, troubleshooting various issues, and determining optimal locations and timings for traffic capture. This section forms the foundation for understanding how to use protocol analyzers effectively.
Domain 2: Capture Configuration and Customization
Assess key skills in analyzer setup and customization such as configuring capture filters, adjusting global preferences, and interpreting time values. These capabilities are essential for network security professionals who need to tailor their analysis environment.
Sample questions from this domain above:
Q2Q3Q4
Domain 3: Statistics and Display Filters
Test your ability to interpret statistics from trace files, create effective display filters, and utilize the expert system. This includes tracking streams, reassembling data, and customizing profiles for efficient workflow during network analysis.
Sample question from this domain above:
Q1
Domain 4: TCP/IP Protocol Analysis
Focus on analyzing fundamental network protocols like DNS, ARP, and IP traffic. Candidates must demonstrate a strong grasp of basic TCP/IP functionalities and multi-step resolution processes typical in network analysis.
Sample question from this domain above:
Q5
Domain 5: Transport Layer Protocol Analysis
Address the analysis of transport layer protocols including ICMP, UDP, and TCP traffic. Professionals must showcase the ability to evaluate normal communication patterns and understand processes like connection establishment.
Domain 6: Application Protocol Analysis
Analyze traffic from application-level protocols such as DHCP, HTTP, FTP, and email. Expertise in graphing input and output rates and troubleshooting protocol-specific issues is essential for success in this area.
Domain 7: Wireless and VoIP Analysis
Emphasize the analysis of 802.11 WLAN and VoIP traffic. Network analysts are expected to demonstrate skills in capturing WLAN traffic, analyzing signal strength, and understanding the flow of VoIP communication.
Domain 8: Performance Analysis and Baselining
Focus on identifying standard traffic patterns and diagnosing performance-related issues. Professionals must display the ability to establish protocol baselines and troubleshoot performance challenges effectively.
Domain 9: Network Forensics and Security
Test understanding of network forensics including detecting scanning activities and analyzing suspicious traffic patterns to ensure network integrity. This section is critical for security-focused network analysts.
Domain 10: Command-Line Tools and Advanced Features
Evaluate proficiency in using command-line tools like Wireshark.exe and Tshark. Candidates must demonstrate competence in leveraging these tools for advanced network analysis tasks beyond the graphical interface.
FAQ
WCNA Exam FAQ
Common questions about the exam itself
What background do I need to sit the WCNA exam?
The WCNA has no formal prerequisites. However, candidates should have practical experience with network troubleshooting and basic knowledge of TCP/IP protocols before attempting the exam.
How difficult is the WCNA certification compared to other networking certs?
The WCNA is a specialized, technical certification focused on protocol analysis with a practical bent. It differs from broader networking certifications like CCNA by concentrating on traffic analysis and forensics rather than network infrastructure design.
How many questions are on the WCNA exam and how long do I have?
The WCNA exam consists of 100 closed-book questions with a 2 hour time limit. The exam uses equated scoring where each question has different point values based on difficulty.
What's the passing score for the WCNA exam?
The WCNA is a Pass/Fail exam and the vendor does not publish a specific numeric passing score. Instead, scoring is calculated by equating the values of each question you answer correctly.
How long does WCNA certification stay valid?
Your WCNA certification is valid for 3 years from the date you pass the exam. After 3 years, you must take the WCNA Recertification Exam to maintain your certification status.
How do I take the WCNA exam and can I sit it from home?
You can take the exam at hundreds of KRYTERION testing centres worldwide, or online from home with biometric authentication and webcam proctoring. Register for either format at www.webassessor.com/pai.
How long does it realistically take to prepare for the WCNA exam?
Preparation time depends on your existing network knowledge and hands-on experience. Most candidates spend several weeks to a few months preparing through a combination of self-paced learning, the official study guide with practice questions, and practical lab work with trace files.
What can I expect on exam day for the WCNA?
You cannot bring personal items like phones, bags, calculators or watches. The exam is closed-book and you should bring photo identification. If taking the online proctored version, biometric verification and webcam monitoring are required as per Kryterion security protocols.
Is there a retake limit for the WCNA and how soon can I retake it?
The vendor does not publish a limit on retakes but you must wait 72 hours from your exam registration before scheduling your exam. Additional exam sittings are charged at the full USD 299 price.
What job role does the WCNA certification support?
The WCNA is designed for network analysts, cybersecurity professionals, and network forensics specialists who need expertise in analyzing packets and protocols for troubleshooting, optimization, and security investigations.
