212-82 Online Practice Questions and Answers

Correct Answer: C

Explanation: Temp_High is the command that was sent by the IoT device over the network in the above scenario. An IoT (Internet of Things) device is a device that can connect to the internet and communicate with other devices or systems

over a network. An IoT device can send or receive commands or data for various purposes, such as monitoring, controlling, or automating processes. To analyze the IoT device traffic file and determine the command that was sent by the IoT

device over the network, one has to follow these steps:

Navigate to the Documents folder of Attacker-1 machine. Double-click on loTdeviceTraffic.pcapng file to open it with Wireshark. Click on Analyze menu and select Display Filters option. Enter udp.port == 5000 as filter expression and click on

Apply button.

Observe the packets filtered by the expression.

Click on packet number 4 and expand User Datagram Protocol section in packet details pane.

Observe the data field under User Datagram Protocol section. The data field under User Datagram Protocol section is 54:65:6d:70:5f:48:69:67:68 , which is hexadecimal representation of Temp_High , which is the command that was sent by

the IoT device over the network.

Correct Answer: B

Explanation: Investigation objectives is the section of the forensic investigation report where Arabella recorded the "nature of the claim and information provided to the officers" in the above scenario. A forensic investigation report is a document that summarizes the findings and conclusions of a forensic investigation. A forensic investigation report typically follows a standard template that contains different sections covering all the details of the crime and the investigation process. Investigation objectives is the section of the forensic investigation report that describes the purpose and scope of the investigation, the nature of the claim and information provided to the officers, and the questions or issues to be addressed by the investigation. Investigation process is the section of the forensic investigation report that describes the steps and methods followed by the investigators, such as evidence collection, preservation, analysis, etc. Evidence information is the section of the forensic investigation report that lists and describes the evidence obtained from various sources, such as devices, media, witnesses, etc. Evaluation and analysis process is the section of the forensic investigation report that explains how the evidence was evaluated and analyzed using various tools and techniques, such as software, hardware, etc.

Correct Answer: A

Explanation: Riley's public key is the key that Louis used to verify the digital signature in the above scenario. A digital signature is a cryptographic technique that verifies the authenticity and integrity of a message or document. A digital signature is created by applying a hash function to the message or document and then encrypting the hash value with the sender's private key. A digital signature can be verified by decrypting the hash value with the sender's public key and comparing it with the hash value of the original message or document . Riley's public key is the key that corresponds to Riley's private key, which he used to sign the message. Louis's public key is the key that corresponds to Louis's private key, which he may use to encrypt or decrypt messages with Riley. Louis's private key is the key that only Louis knows and can use to sign or decrypt messages. Riley's private key is the key that only Riley knows and can use to sign or encrypt messages.

Correct Answer: C

Explanation: hat@red is the FTP credential that was stolen using Cain and Abel in the above scenario. FTP (File Transfer Protocol) is a protocol that allows transferring files between a client and a server over a network. FTP requires a

username and a password to authenticate the client and grant access to the server . Cain and Abel is a tool that can perform various network attacks, such as ARP poisoning, password cracking, sniffing, etc. Cain and Abel can poison the

machine and fetch the FTP credentials used by the admin by intercepting and analyzing the network traffic . To validate the credentials that were stolen using Cain and Abel and read the file flag.txt, one has to follow these steps:

Navigate to the Documents folder of Attacker-1 machine. Double-click on Cain.exe file to launch Cain and Abel tool.

Click on Sniffer tab.

Click on Start/Stop Sniffer icon.

Click on Configure icon.

Select the network adapter and click on OK button.

Click on + icon to add hosts to scan.

Select All hosts in my subnet option and click on OK button.

Wait for the hosts to appear in the list.

Right-click on 20.20.10.26 (FTP server) and select Resolve Host Name option.

Note down the host name as ftpserver.movieabc.com

Click on Passwords tab.

Click on + icon to add items to list.

Select Network Passwords option.

Select FTP option from Protocol drop-down list.

Click on OK button.

Wait for the FTP credentials to appear in the list. Note down the username as hat and the password as red Open a web browser and type ftp://hat:[email protected] Press Enter key to access the FTP server using the stolen

credentials.

Navigate to flag.txt file and open it.

Read the file content.

Correct Answer: B

Explanation: 4 is the UID (user ID) of a user, John, in the database in the above scenario. A web application is a software application that runs on a web server and can be accessed by users through a web browser. A web application can be

vulnerable to SQL injection attacks, which are a type of web application attack that exploit a vulnerability in a web application that allows an attacker to inject malicious SQL statements into an input field, such as a username or password field,

and execute them on the database server. SQL injection can be used to bypass authentication, access or modify sensitive data, execute commands, etc. To exploit the web application and extract the user credentials from the moviescope

database, one has to follow these steps:

Open a web browser and type www.moviescope.com

Press Enter key to access the web application.

Enter sam as username and test as password.

Click on Login button.

Observe that a welcome message with username sam is displayed.

Click on Logout button.

Enter sam' or `1'='1 as username and test as password.

Click on Login button.

Observe that a welcome message with username admin is displayed, indicating that SQL injection was successful.

Click on Logout button.

Enter sam'; SELECT * FROM users; ?as username and test as password.

Click on Login button.

Observe that an error message with user credentials from users table is displayed.

The user credentials from users table are:

The UID that is mapped to user john is 4

Correct Answer: A

Explanation: A true positive alert is generated by an IDS system when it correctly identifies an ongoing intrusion attempt on the network and sends an alert to the security professional. This is the desired outcome of an IDS system, as it indicates that the system is working effectively and accurately

Correct Answer: B

Explanation: Risk treatment is the risk management phase that Cassius was instructed to perform in the above scenario. Risk management is a process that involves identifying, analyzing, evaluating, treating, monitoring, and reviewing risks that can affect an organization's objectives, assets, or operations. Risk management phases can be summarized as follows: risk identification, risk analysis, risk prioritization, risk treatment, and risk monitoring . Risk identification is the risk management phase that involves identifying and documenting potential sources, causes, events, and impacts of risks. Risk analysis is the risk management phase that involves assessing and quantifying the likelihood and consequences of risks. Risk prioritization is the risk management phase that involves ranking risks based on their severity level and determining which risks need immediate attention or action. Risk treatment is the risk management phase that involves selecting and implementing appropriate controls or strategies to address risks based on their severity level . Risk treatment can include avoiding, transferring, reducing, or accepting risks. Risk monitoring is the risk management phase that involves tracking and reviewing the performance and effectiveness of risk controls or strategies over time.

Correct Answer: A

Explanation: Hardware-assisted virtualization is a virtualization approach in which the guest OS will not be aware that it is running in a virtualized environment. The virtual machine manager (VMM) will directly interact with the computer hardware, translate commands to binary instructions, and forward them to the host OS. Hardware-assisted virtualization relies on special hardware features in the CPU and chipset to create and manage virtual machines efficiently and securely34. Full virtualization is a virtualization approach in which the guest OS will not be aware that it is running in a virtualized environment, but the VMM will run in software and emulate all the hardware resources for each virtual machine5. Hybrid virtualization is a virtualization approach that combines hardware-assisted and full virtualization techniques to optimize performance and compatibility6. OS-assisted virtualization is a virtualization approach in which the guest OS will be modified to run in a virtualized environment and cooperate with the VMM to access the hardware resources

Correct Answer: B

Explanation: It identifies the type of physical lock used by the organization in the above scenario. A physical lock is a device that prevents unauthorized access to a door, gate, cabinet, or other enclosure by using a mechanism that requires a key, code, or biometric factor to open or close it. There are different types of physical locks, such as: Combination lock: This type of lock requires typing a sequence of numbers and letters by using a rotating dial that intermingles with several other rotating discs. This type of lock is suitable for securing safes, lockers, or cabinets that store valuable items or documents. Digital lock: This type of lock requires entering a numeric or alphanumeric code by using a keypad or touchscreen. This type of lock is suitable for securing doors or gates that require frequent access or multiple users. Mechanical lock: This type of lock requires inserting and turning a metal key that matches the shape and size of the lock. This type of lock is suitable for securing doors or gates that require simple and reliable access or single users. Electromagnetic lock: This type of lock requires applying an electric current to a magnet that attracts a metal plate attached to the door or gate. This type of lock is suitable for securing doors or gates that require remote control or integration with other security systems. In the above scenario, the organization used a combination lock that requires typing a sequence of numbers and letters by using a rotating dial that intermingles with several other rotating discs. Option A is incorrect, as it does not identify the type of physical lock used by the organization in the above scenario. A digital lock requires entering a numeric or alphanumeric code by using a keypad or touchscreen. In the above scenario, the organization did not use a digital lock, but a combination lock. Option C is incorrect, as it does not identify the type of physical lock used by the organization in the above scenario. A mechanical lock requires inserting and turning a metal key that matches the shape and size of the lock. In the above scenario, the organization did not use a mechanical lock, but a combination lock. Option D is incorrect, as it does not identify the type of physical lock used by the organization in the above scenario. An electromagnetic lock requires applying an electric current to a magnet that attracts a metal plate attached to the door or gate. In the above scenario, the organization did not use an electromagnetic lock, but a combination lock. References: , Section 7.2

Correct Answer: B

Explanation: Capture is the Wireshark menu that Leilani has navigated in the above scenario. Wireshark is a network analysis tool that captures and displays network traffic in real-time or from saved files. Wireshark has various menus that contain different items and options for manipulating, displaying, and analyzing network data. Capture is the Wireshark menu that contains items to start, stop, restart, or save a live capture of network traffic. Capture also contains items to configure capture filters, interfaces, options, and preferences . Statistics is the Wireshark menu that contains items to display various statistics and graphs of network traffic, such as packet lengths, protocols, endpoints, conversations, etc. Main toolbar is the Wireshark toolbar that contains icons for quick access to common functions, such as opening or saving files, starting or stopping a capture, applying display filters, etc. Analyze is the Wireshark menu that contains items to manipulate, display and apply filters, enable or disable the dissection of protocols, and configure user-specified decodes.