Free 212-82 Practice Test Questions and Answers (2026) | Cert Empire Practice Questions

To determine the length of Ping of Death (PoD) packets in bytes from the provided network traffic

capture (android.pcapng), follow these steps:

Open the Capture File:

Use a network analysis tool like Wireshark to open the android.pcapng file.

Filter for PoD Packets:

Apply filters to isolate ICMP echo request packets (Ping packets) and specifically look for oversized

packets characteristic of a Ping of Death attack.

Analyze Packet Length:

Examine the packet details to determine the length of the packets involved in the attack. PoD packets

are typically malformed and exceed the standard 65,535 bytes limit, but in this case, the length is

identified as 54 bytes.

Reference:

Wireshark documentation and usage: Wireshark User Guide

Analysis of Ping of Death attacks: CERT Advisory

RFID (Radio Frequency Identification) is a short-range wireless communication technology that uses

radio waves to identify and track objects. RFID tags are attached to objects and RFID readers scan the

tags to obtain the information stored in them. RFID is commonly used for access control, inventory

management, and identification3. Reference: What is RFID?

Anomaly detection is a type of IDS detection method that involves first creating models for possible

intrusions and then comparing these models with incoming events to make a detection decision. It

can detect unknown or zero-day attacks by looking for deviations from normal or expected behavior

Masking is the technique that Andre employed in the above scenario. Masking is a deidentification

technique that can replace the critical information in database fields with special characters such as

asterisks (*) and hashes (#). Masking can help protect sensitive data from unauthorized access or

disclosure, while preserving the format and structure of the original data . Tokenization is a

deidentification technique that can replace the critical information in database fields with random

tokens that have no meaning or relation to the original data. Hashing is a deidentification technique

that can transform the critical information in database fields into fixed-length strings using a

mathematical function. Bucketing is a deidentification technique that can group the critical

information in database fields into ranges or categories based on certain criteria.

Geofencing is a technique that uses GPS features to determine the proximity of a user’s mobile

device to an exact location. Geofencing can be used to create a virtual barrier positioned at a static

location to interact with mobile users crossing the barrier. Geofencing can be used for marketing,

security, and tracking purposes2.

Reference: What is Geofencing?

Security event log is the type of event log analyzed by Tenda in the above scenario. Windows Event

Viewer is a tool that displays logged data about various events that occur on a Windows system or

network. Windows Event Viewer categorizes event logs into different types based on their source

and purpose. Security event log is the type of event log that records events related to Windows

security; specifically, log-on/log-off activities, resource access, and also information based on

Windows system’s audit policies . Security event log can help identify attempted or successful

unauthorized activities on a Windows system or network. Application event log is the type of event

log that records events related to applications running on a Windows system, such as errors,

warnings, or information messages. Setup event log is the type of event log that records events

related to the installation or removal of software or hardware components on a Windows system.

System event log is the type of event log that records events related to the operation of a Windows

system or its components, such as drivers, services, processes, etc.

Cookies are the computer-created evidence retrieved by Desmond in this scenario. Cookies are small

files that are stored on a user’s computer by a web browser when the user visits a website. Cookies

can contain information such as user p

, login details, browsing history, or tracking data.

Cookies can be used to extract and analyze computer-based evidence to retrieve information related

to websites accessed from the victim machine2. Reference: Cookies

Black-box testing is a type of penetration testing where the tester has no prior knowledge of the

target system or network and initiates zero-knowledge attacks, with no information or assistance

from the organization. Black-box testing simulates the perspective of an external attacker who tries

to find and exploit vulnerabilities without any insider information. Black-box testing can help identify

unknown or hidden vulnerabilities that may not be detected by other types of testing. However,

black-box testing can also be time-consuming, costly, and incomplete, as it depends on the tester’s

skills and tools.

Recovery is the IH&R step performed by Edwin in the above scenario. IH&R (Incident Handling and

Response) is a process that involves identifying, analyzing, containing, eradicating, recovering from,

and reporting on security incidents that affect an organization’s network or system. Recovery is the

IH&R step that involves restoring the normal operation of the system or network after eradicating

the incident. Recovery can include reinstating lost data from the backup media, applying patches or

updates, reconfiguring settings, testing functionality, etc. Recovery also involves ensuring that the

backup does not have any traces of malware or compromise . Eradication is the IH&R step that

involves removing all traces of the incident from the system or network, such as malware, backdoors,

compromised files, etc. Incident containment is the IH&R step that involves implementing

appropriate measures to stop the infection from spreading to other organizational assets and to

prevent further damage to the organization. Notification is the IH&R step that involves informing

relevant stakeholders, authorities, or customers about the incident and its impact.

The IP address of the attacker is 10.10.1.16. This can be verified by analyzing the

Windows.events.evtx file using a tool such as Event Viewer or Log Parser. The file contains several

Audit Failure logs with event ID 4625, which indicate failed logon attempts to the system. The logs

show that the source network address of the failed logon attempts is 10.10.1.16, which is the IP

address of the attacker3. The screenshot below shows an example of viewing one of the logs using

Event Viewer4: Reference: Audit Failure Log, [Windows.events.evtx], [Screenshot of Event Viewer

showing Audit Failure log]

Attorney is the role played by Dany in the above scenario. Attorney is a member of a forensic team

who provides legal advice on conducting the investigation and addresses legal issues involved in the

forensic investigation process. Attorney can help with obtaining search warrants, preserving

evidence, complying with laws and regulations, and presenting cases in court3. Reference: Attorney

Role in Forensic Investigation

The correct answer is B, as it describes the information security element that was described in the

above scenario. Non-repudiation is an information security element that ensures that a party cannot

deny sending or receiving a message or performing an action. In the above scenario, non-repudiation

was described, as Kayden could not deny company’s message, and company could not deny Kayden’s

signature. Option A is incorrect, as it does not describe the information security element that was

described in the above scenario. Availability is an information security element that ensures that

authorized users can access and use information and resources when needed. In the above scenario,

availability was not described, as there was no mention of access or use of information and

resources. Option C is incorrect, as it does not describe the information security element that was

described in the above scenario. Integrity is an information security element that ensures that

information and resources are accurate and complete and have not been modified by unauthorized

parties. In the above scenario, integrity was not described, as there was no mention of accuracy or

completeness of information and resources. Option D is incorrect, as it does not describe the

information security element that was described in the above scenario. Confidentiality is an

information security element that ensures that information and resources are protected from

unauthorized access and disclosure. In the above scenario, confidentiality was not described, as

there was no mention of protection or disclosure of information and resources.

Reference: , Section 3.1

SecuraCorp needs an Intrusion Detection System (IDS) that can identify suspicious patterns based on

behavior rather than relying solely on known signatures. Here’s why an Anomaly-based IDS is the

best fit:

Anomaly-based IDS:

Behavior Analysis: Detects deviations from normal network behavior, which is crucial for identifying

zero-day vulnerabilities.

Pattern Recognition: Uses machine learning and statistical methods to identify unusual patterns that

might indicate malicious activity.

Advantages: Effective against unknown threats and zero-day exploits because it does not rely on

predefined signatures.

Network-based IDS: Primarily monitors network traffic but often relies on signatures, making it less

effective against unknown threats.

Signature-based IDS: Relies on a database of known attack signatures, which is not sufficient for

detecting new or unknown threats.

Host-based IDS: Monitors individual systems but might not provide a comprehensive view of the

network.

Reference:

EC-Council Certified Security Analyst (ECSA) materials.

Mounting the VeraCrypt Volume: Use VeraCrypt to mount the volume file S3cr3t located in the Pictures folder. The provided password sniffer@123 is required to mount the volume. Reference: VeraCrypt User Guide. Locating the Image File: After mounting the volume, browse through the files to locate the image file that may contain the secret code through steganography. Extracting the Secret Code: Use steganography tools to analyze the image file and extract the hidden secret code. Tools such as Stegsolve or Steghide can be used for this purpose. Reference: "Practical Cryptography" by Niels Ferguson. Recovering the Code: The extracted secret code from the image file is H364F9F4FD3H. The recovered secret code from the image file is H364F9F4FD3H.

John-the-Ripper Usage: John-the-Ripper is a popular open-source password cracking tool used to detect weak passwords. It works by performing dictionary attacks and brute force attacks on password hashes. Reference: John the Ripper official documentation Cracking the Hashes: Load the hash file into John-the-Ripper using the command: bash Copy code john target-file John will then attempt to crack the passwords using its internal mechanisms. Accessing the FTP Server: Once the hashes are cracked, use the recovered credentials to log in to the FTP server. Not all credentials may be valid, so try each until successful access is gained. Reference: RFC 959, the standard for FTP. Reading the Exploit File: Navigate to the FTP root directory and locate the exploit file. Use a command like cat to read its contents: cat exploit-file The content of the file will include the author’s name, which is "nullsecurlty" in this scenario.

bob1@sam is the file’s content as the answer. To find the machine with SSH service enabled, one can use a network scanning tool such as Nmap to scan the network for port 22, which is the default port for SSH. For example, the command nmap -p 22 192.168.0.0/24 will scan the network range 192.168.0.0/24 for port 22 and display the results2. To initiate an SSH connection to the machine, one can use a command-line tool such as ssh or an SSH client such as PuTTY to connect to the machine using the credentials sam/admin@123. For example, the command ssh [email protected] will connect to the machine with IP address 192.168.0.10 using the username sam and prompt for the password admin@1233. To find the file flag.txt in the machine, one can use a file searching tool such as find or locate to search for the file name in the machine’s file system. For example, the command find / -name flag.txt will search for the file flag.txt from the root directory (/) and display its location4. To enter the file’s content as the answer, one can use a file viewing tool such as cat or less to display the content of the file flag.txt. For example, the command cat /home/sam/flag.txt will display the content of the file flag.txt located in /home/sam/ directory5. The screenshot below shows an example of performing these steps: ![Screenshot of performing these steps] Reference: Nmap Tutorial, SSH Tutorial, Find Command Tutorial, Cat Command Tutorial, [Screenshot of performing these steps]

RSA Overview:

RSA is a widely accepted and strong public-key cryptographic algorithm that supports both

encryption and decryption functions. It is based on the mathematical difficulty of factoring large

prime numbers.

Reference: NIST SP 800-57, Recommendation for Key Management.

Strong Security:

RSA provides strong security through its use of large key sizes (typically 2048 bits or higher), making

it resistant to brute force and other cryptographic attacks.

Reference: RSA Laboratories' "PKCS #1: RSA Cryptography Specifications."

International Acceptance:

RSA is widely used and accepted internationally, making it suitable for PolarFin's requirements to

comply with various global financial regulations.

Reference: ISO/IEC 18033-2:2006, Information technology — Security techniques — Encryption

algorithms.

Encryption and Decryption:

RSA supports secure encryption of data, ensuring confidentiality, and decryption, allowing authorized

parties to access the encrypted information.

Reference: "Applied Cryptography" by Bruce Schneier.

Given the need for strong security and international acceptance, RSA is the best cryptographic

algorithm for PolarFin's new transactional system.

Content-based signature analysis is the type of attack signature analysis performed by Anderson in

the above scenario. Content-based signature analysis is a technique that analyzes packet header

fields such as IP options, IP protocols, IP fragmentation flags, offset, and identification to check

whether any fields are altered in transit. Content-based signature analysis can help detect attacks

that manipulate packet headers to evade detection or exploit vulnerabilities . Context-based

signature analysis is a technique that analyzes packet payloads such as application data or commands

to check whether they match any known attack patterns or signatures. Atomic-signature-based

analysis is a technique that analyzes individual packets to check whether they match any known

attack patterns or signatures. Composite-signature-based analysis is a technique that analyzes

multiple packets or sessions to check whether they match any known attack patterns or signatures.

The testing tier of a secure application development lifecycle involves checking the performance of

the application on the client’s network to determine whether end users are facing any issues in

accessing the application. Testing is a crucial phase of software development that ensures the quality,

functionality, reliability, and security of the application. Testing can be done manually or

automatically using various tools and techniques, such as unit testing, integration testing, system

testing, regression testing, performance testing, usability testing, security testing, and acceptance

testing

Managing and maintaining is the phase of firewall implementation and deployment in which Elliott

monitored the firewall logs in the above scenario. A firewall is a system or device that controls and

filters the incoming and outgoing traffic between different networks or systems based on predefined

rules or policies. A firewall can be used to protect a network or system from unauthorized access,

use, disclosure, modification, or destruction . Firewall implementation and deployment is a process

that involves planning, installing, configuring, testing, managing, and maintaining firewalls in a

network or system . Managing and maintaining is the phase of firewall implementation and

deployment that involves monitoring and reviewing the performance and effectiveness of firewalls

over time . Managing and maintaining can include tasks such as updating firewall rules or policies,

analyzing firewall logs , detecting evolving threats or attacks , ensuring firewall security , addressing

network issues , etc. In the scenario, Elliott was tasked with implementing and deploying firewalls in

the corporate network of an organization. After planning and deploying firewalls in the network,

Elliott monitored the firewall logs to detect evolving threats and attacks; this helped in ensuring

firewall security and addressing network issues beforehand. This means that he performed managing

and maintaining phase for this purpose. Deploying is the phase of firewall implementation and

deployment that involves installing and activating firewalls in the network or system according to the

plan. Testing is the phase of firewall implementation and deployment that involves verifying and

validating the functionality and security of firewalls before putting them into operation. Configuring

is the phase of firewall implementation and deployment that involves setting up and customizing

firewalls according to the requirements and specifications.