Free Practice Questions for Eccouncil 112-51 Exam

Jacob, a network defender in an organization, was instructed to improve the physical security measures to prevent unauthorized intrusion attempts. In this process, Jacob implemented certain physical security controls by using warning messages and signs that notify legal consequences to discourage hackers from making intrusion attempts.Which of the following type of physical security controls has Jacob implemented in the above scenario?

• Recovery controls
• Detective control
• Preventive controls
• Deterrent controls

Which of the following algorithms is an iterated block cipher that works by repeating the defined steps multiple times and has a 128-bit block size, having key sizes of 128, 192, and 256 bits?

• DSA
• MD5
• SHA
• AES

Below are the various steps involved in establishing a network connection using the shared key authentication process.

• The AP sends a challenge text to the station.
• The station connects to the network.
• The station encrypts the challenge text using its configured 128-bit key and sends the encrypted text to the AP.
• The station sends an authentication frame to the AP.
• 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?
• 4 -- >2 -- >1 -- >3 -- >5
• 4 -- >1 -- >3 -- >5 -- >2
• 2 -- >4 -- >5 -- >1 -- >3
• 4 -- >5 -- >3 -- >2 -- >1

Alice was working on her major project; she saved all her confidential files and locked her laptop. Bob wanted to access Alice's laptop for his personal use but was unable to access the laptop due to biometric authentication.Which of the following network defense approaches was employed by Alice on her laptop?

• Retrospective approach
• Preventive approach
• Reactive approach
• Proactive approach

Which of the following components of VPN is used to manage tunnels and encapsulate private data?

• Remote network
• VPN protocol
• Network access server
• VPN client

Which of the following IDS components analyzes the traffic and reports if any suspicious activity is detected?

• Command console
• Network sensor
• Database of attack signatures
• Response system

Ben, a computer user, applied for a digital certificate. A component of PKI verifies Ben's identity using the credentials provided and passes that request on behalf of Ben to grant the digital certificate.Which of the following PKI components verified Ben as being legitimate to receive the certificate?Certificate authority (CA)Registration authority {RA)Certificate directoryValidation authority (VA)

• The CA is the entity that signs and issues the certificates, and maintains the certificate directory and the certificate revocation list. A certificate directory is a repository of issued certificates that can be accessed by users or applications to verify the validity and status of a certificate. A validation authority (VA) is an entity that provides online certificate validation services, such as OCSP or SCVP, to verify the revocation status of a certificate in real time123.

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?

• Informational
• Reconnaissance
• Unauthorized access
• Denial-of-service (DoS)

Cibel.org, an organization, wanted to develop a web application for marketing its products to the public. In this process, they consulted a cloud service provider and requested provision of development tools, configuration management, and deployment platforms for developing customized applications.Identify the type of cloud service requested by Cibel.org in the above scenario.

• Security-as-a-service (SECaaS)
• Platform-as-a-service
• Infrastructure-as-a-service {laaS)
• ldentity-as-a-service {IDaaS)

John is working as a security professional in FinCorp Ltd. He was instructed to deploy a security solution on their corporate network that provides real-time monitoring, correlation of events, threat detection, and security incident response activities.Which of the following security solutions helps John in the above scenario?

• SIEM
• VPN
• SOCKS
• MDM