ECCouncil 112-51 問題集

質問 1：
John, from a remote location, was monitoring his bedridden grandfather's health condition at his home. John has placed a smart wearable ECG on his grandfather's wrist so that he can receive alerts to his mobile phone and can keep a track over his grandfather's health condition periodically.
Which of the following types of loT communication model was demonstrated in the above scenario?
A. Cloud-to-cloud communication model
B. Device-to-device model
C. Device-to-cloud model
D. Device-to-gateway model
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 2：
Identify the UBA tool that collects user activity details from multiple sources and uses artificial intelligence and machine learning algorithms to perform user behavior analysis to prevent and detect various threats before the fraud is perpetrated.
A. ClamWin
B. Dtex systems
C. Nmap
D. Wireshark
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 3：
George, a certified security professional, was hired by an organization to ensure that the server accurately responds to customer requests. In this process, George employed a security solution to monitor the network traffic toward the server. While monitoring the traffic, he identified attack signatures such as SYN flood and ping of death attempts on the server.
Which of the following categories of suspicious traffic signature has George identified in the above scenario?
A. Informational
B. Reconnaissance
C. Unauthorized access
D. Denial-of-service (DoS)
正解：D

質問 4：
Which of the following layers of loT architecture employs protocols and networks for connecting, sending, and receiving data between devices and network?
A. Process layer
B. Cloud layer
C. Device layer
D. Communication layer
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 5：
Below are the various steps involved in establishing a network connection using the shared key authentication process.
1.The AP sends a challenge text to the station.
2.The station connects to the network.
3.The station encrypts the challenge text using its configured 128-bit key and sends the encrypted text to the AP.
4.The station sends an authentication frame to the AP.
5.The AP uses its configured WEP key to decrypt the encrypted text and compares it with the original challenge text.
What is the correct sequence of steps involved in establishing a network connection using the shared key authentication process?
A. 2 -- >4 -- >5 -- >1 -- >3
B. 4 -- >2 -- >1 -- >3 -- >5
C. 4 -- >1 -- >3 -- >5 -- >2
D. 4 -- >5 -- >3 -- >2 -- >1
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 6：
Steve was sharing his confidential file with John via an email that was digitally signed and encrypted. The digital signature was made using the "Diffie-Hellman (X9.42) with DSS" algorithm, and the email was encrypted using triple DES.
Which of the following protocols employs the above features to encrypt an email message?
A. S/MIME
B. RADIUS
C. EAP
D. TACACS+
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 7：
Bob has secretly installed smart CCTV devices (loT devices) outside his home and wants to access the recorded data from a remote location. These smart CCTV devices send sensed data to an intermediate device that carries out pre-processing of data online before transmitting it to the cloud for storage and analysis. The analyzed data is then sent to Bob for initiating actions.
Identify the component of loT architecture that collects data from loT devices and performs data pre-processing.
A. Gateway
B. Streaming data processor
C. Machine learning
D. Data lakes
正解：A
解説: (Topexam メンバーにのみ表示されます)