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Exam Number: WCA-101

Exam Name: Wireshark Certified Network Analyst

Number of Questions: 50-60

Time allotment: 120 minutes

- Open- save- and close files- and export specified packets.

- Describe the difference between different capture file formats- especially pcap and pcapng.

- Export objects from packet captures.

- Use 'Find Packet' to locate packets of interest.

- Use the packet and file comments feature.

- Set/Unset time reference.

- Apply different time formats in a capture.

- Describe how Wireshark applies different name resolution options.

- Configure name resolution.

- Use 'Decode as' feature.

- Use 'Capture File Properties' to identify key information about the capture.

- Use 'Protocol Hierarchy' to identify key protocols in a capture.

- Use 'Conversations' to identify key communications in a capture.

- Use 'Endpoints' to analyze host traffic in a capture.

- Create and interpret an I/O graph that shows packets/s or bits/s for a given display filter.

- Distinguish between real bytes captured and fields generated by the Wireshark dissectors. (shown in [ ])

- Use 'Follow TCP/UDP' stream

- Utilize different methods of Capturing Traffic

- Compare and contrast the benefits of different methods used for traffic capture. (Direct on Endpoint- Network Tap- Infrastructure Device- Port Mirror- Multi-Point Capture)

- Select the appropriate interface to capture traffic in Wireshark.

- Start/Stop/Restart Capture in Wireshark.

- Limit capture by file size- packets- or duration.

- Implement a Ring Buffer.

- Save a capture.

- Export specified packets to a new file.

- Capture traffic using command line tools.

- Describe the purpose of using promiscuous or monitor mode during a capture.

- Filter traffic using capture and display filters.

- Compare and contrast Display Filters and Capture Filters.

- Implement a Capture Filter to capture only traffic from a single protocol- IP address- MAC address- or port (range).

- Use multiple methods to create a Display Filter to isolate traffic for a single protocol or a property of a protocol. (manual entry- right click- drag/drop)

- Use membership filters (tcp.port in {80-443} )

- Use logical operators to connect multiple filters together.

- Create a button for easy access to a Display Filter.

- Identify situations where a Display Filter will show incomplete or excess results (i.e. filter for HTTP- but do not see the TCP handshake)

- Identify the behavior of using ! (not) in different parts of filter logic by explaining the implicit 'any' and 'all' qualifiers.

- Apply filters from Statistics > Conversations and Statistics > Endpoints.

- Create a filter using generated fields in Wireshark.

- Configure- adapt- and use the Wireshark interface for different scenarios.

- Identify key components of the GUI (packet list- hex view- packet details- etc.).

- Modify panes with a different layout/features.

- Describe the value of using profiles.

- Create/modify/copy a profile.

- Describe the importance of columns in troubleshooting.

- Use multiple methods to add a column.

- Use coloring rules to highlight packets.

- Use the minimap (colored sidebar) to quickly locate packets of interest.

- Use the 'Colorize Conversation' feature.

- Understand the importance of protocol preferences in your analysis.

- Use the mark/unmark packet feature.

- Identify and explain common network protocols dissected by Wireshark

- ETHERNET

- Identify Fields of Ethernet frame.

- Describe minimum and maximum frame sizes.

- Explain why the CRC is missing from Ethernet frame in Wireshark.

- Identify common Ethertypes (IPv4- IPv6- ARP).

- Distinguish between Unicast- Broadcast- and Multicast MAC addresses.

- Describe how the frame header is modified to accommodate VLAN tags.

- ARP

- Describe the purpose of the ARP protocol.

- Identify and explain the purpose of different types of ARP packets.

- Create filters for different types of ARP traffic.

- Describe the difference between a broadcast ARP and a unicast ARP.

- IPv4

- Describe common features of the IP protocol.

- Describe header values of the IP protocol (TTL- Fragmentation- Packet Length- ProtocolID- IP ID).

- Describe public- private- multicast and APIPA IP address ranges.

- Describe how NAT works and why this should be considered when capturing andanalyzing network traffic.

- Identify and explain the purpose of the IP TTL field.

- Predict most likely distance- in hops- from the capturing device.

- Describe different IP identification strategies and how to use them in troubleshooting.

- ICMPv4

- Identify ICMP message types and their purpose.

- Identify the IP packet which triggered an ICMP error message or reply.

- IPv6

- Identify types of IPv6 addresses (Link Local- Global Unicast- Multicast).

- ICMPv6

- Identify and explain components of neighbor/router discovery protocol.

- Identify and explain purpose of Neighbor Advertisements/Solicitations.

- Identify and explain common network protocols dissected by Wireshark.

- UDP

- Identify UDP traffic.

- Identify higher layer protocols which use UDP.

- Describe the UDP stream id and conversation timestamps.

- Describe why UDP is used in multicast or broadcast IP traffic.

- DHCPv4

- Identify and describe the 4 phases (DORA).

- Describe the different purposes of a 'DHCP Request' message.

- Identify DHCP options and parameters (router- dns- subnetmask- custom options).

- Describe APIPA and how it relates to DHCP.

- DNS

- Identify DNS requests and replies.

- Use DNS information to identify relevant traffic.

- Distinguish between different DNS record types.

- TCP

- Describe the components of a 3 way handshake.

- Describe different methods TCP session are torn down.

- Explain how iRTT is measured.

- Describe and calculate Maximum Segment Size(MSS).

- Describe how TCP flags are used to establish and tear down a TCP session.

- Explain how sequence and acknowledgment numbers are used to maintain reliability.

- Explain TCP options and their purpose.(EOL- NOP- MSS- SACK- DSACK- Window Scaling)

- Describe the purpose of a DUP ACK.

- Identify the byte range of missing segments based on a DUP ACK with SACK or DSACK.

- Describe what each line represents in a TCP Stream Graph.

- Describe the purpose of TCP reassembly in Wireshark.

- Describe the TCP stream id and conversation timestamps.

- Use Wireshark to troubleshoot common issues with protocols listed above

- Determine network topology only using information in a packet capture.

- Perform TCP sequence and acknowledgment number analysis.

- Distinguish server performance from slow transfer times (for instance in HTTP).

- Identify the effect of high RTT on request/response protocols. (For example: HTTP- SMB-SQL)

- Identify the effect of a low window size in combination with high RTT.

- Given a capture- identify potential network communication issues using information from ARP- DHCP- and ICMP.

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WCA-101 PDF MCQs

PDF Questions and Answers	: 988 (Complete Set)
File Format	: PDF
Latest Update	: March 17, 2026
Files Delivery	: Instant (5 to 10 min.)
Compatibility	: All Desktop and Mobile Devices
Delivery Method	: obtain Account
Sample Download	: WCA-101 test PDF

The Wireshark Certified Network Analyst (WCNA) certification, designated as test WCA-101, represents an advanced, vendor-neutral credential offered by Wireshark University in collaboration with Chappell University. It validates a professional's expertise in network protocol analysis using Wireshark, the world's leading open-source packet analyzer. The certification demonstrates proficiency in capturing, interpreting, and troubleshooting network traffic across diverse protocols, including TCP/IP, HTTP, DNS, TLS, and wireless technologies. Successfully passing the WCA-101 test confirms that an individual possesses the practical skills required to identify performance issues, detect security anomalies, and resolve complex network problems in enterprise environments.

Preparing for the WCA-101 exam requires not only understanding the test syllabus but also practicing with realistic exam-style questions. Our Wireshark Certified Network Analyst test questions and practice tests help candidates review key concepts and familiarize themselves with the format and difficulty of exams.

At Killexams.com, our team works to maintain up-to-date practice content. We continuously review and refine our question sets and explanations to cover the latest relevant syllabus areas and help learners strengthen their understanding of core syllabus before the official exam. practice questions allow you to identify areas where you need improvement by measuring your readiness and provide you exam questions to polish those areas.

By using our WCA-101 test PDF and Test Engine, you can practice with a structured set of questions and answers that are representative of the kinds of items you encounter on the exam. Wherever possible, content includes detailed explanations to clarify reasoning and support deeper learning. The WCA-101 examination consists of a proctored, closed-book, multiple-choice test comprising approximately 100 questions to be completed within a four-hour time limit. Candidates must achieve a minimum passing score of 80% in most regions (with slight variations by country). The test content is directly aligned with the official Wireshark Network Analyst Study Guide and covers key domains such as packet capture techniques, display and capture filters, protocol dissection, anomaly detection, baseline analysis, and security-related traffic inspection. Preparation typically involves completing the official WCNA training course, extensive hands-on lab practice with real-world packet captures, and thorough review of Wireshark’s functionality, making the certification highly respected among network engineers, security analysts, and forensic investigators.

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The Wireshark Certified Network Analyst practice test files with 988 MCQs are compatible with multiple devices, including Windows, macOS, iOS, and Android, and can be used for both online and offline study. The PDF format is printable, making it easy to study during travel or when away from a computer. Access to updated materials is available through your online account.

After purchase, you will receive your username and password immediately, allowing you to log in and obtain your study files without delay. Our goal is to support test preparation at your pace with practice content designed for reinforcement and understanding of key concepts.

Online Test Engine

Online Test Engine Questions	: 988
Testing Limit	: Unlimited
Access Type	: Online
Latest Update	: March 17, 2026
Access Activation	: Instant (5 to 10 min.)
Supported OS	: Mac, Windows, Android, iPhone / iPad, Linux
Delivery Method	: Username/Password

Killexams.com provides an Online Test Engine designed to help candidates practice test questions in a structured and interactive environment. The Test Engine is compatible with iPhone, iPad, Android, Windows, and Mac, allowing you to study and practice on the device that best fits your schedule.

The WCA-101 Online Test Engine enables candidates to simulate real exam-style practice sessions, review answers, and track progress over time. This learning approach helps users practice test questions, question formats and Boost time management while preparing for the Wireshark Certified Network Analyst exam.

The Test Engine includes features that support effective learning, such as customizable practice sessions, question review modes, and progress tracking. These tools are designed to assist candidates in identifying knowledge gaps and reinforcing key concepts through repeated practice rather than memorization alone.

Online Test Engine Practice History Graph

The Online Test Engine maintains practice history, performance summaries, and visual progress reports. Where available, questions may include explanations or reference information to support better understanding of test topics. Content is reviewed and updated periodically to reflect relevant syllabus changes and maintain consistency with test objectives.

Desktop Test Engine

Desktop Test Engine Questions	: 988
Software Version	: 3.0.9
Access	: Unlimited
Latest Update	: March 17, 2026
Access Activation	: Instant (5 to 10 min.)
Support OS	: Windows (All Versions)
Delivery Method	: Username/Password

The Killexams Desktop test Simulator (version 3.0.9) is a dedicated test preparation software designed to support candidates preparing for the WCA-101 exam. The simulator provides a structured desktop-based practice environment that allows users to work through exam-style questions and review their performance in detail.

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