You are a security analyst for CloudSec, a company providing cloud security solutions. One of your clients, a financial institution, wants to shift its operations to a public cloud while maintaining a high level of security control. They want to ensure that they can monitor all their cloud resources continuously and receive real-time alerts about potential security threats. They also want to enforce their security policies consistently across all cloud workloads. Which of the following solutions would best meet these requirements?
Answer(s): B
A continuous monitoring and real-time alerting with centralized policy enforcement fits a Cloud Access Security Broker (CASB). It provides visibility into cloud resource usage, detects anomalies, enforces security policies across multiple cloud services, and can push alerts for threats, aligning with the client’s need for consistent governance in a public cloud.A) VPN secures data in transit but does not provide continuous visibility, real-time threat alerts, or cross-cloud policy enforcement.C) MFA improves authentication security but not continuous monitoring or cross-workload policy enforcement.D) Client-side encryption protects data at rest but does not offer centralized monitoring, real-time alerts, or policy enforcement.
Consider a hypothetical situation where an attacker, known for his proficiency in SQL Injection attacks, is targeting your web server. This adversary meticulously crafts 'q' malicious SQL queries, each inducing a delay of 'd' seconds in the server response. This delay in response is an indicator of a potential attack. If the total delay, represented by the product 'q*d', crosses a defined threshold 'T', an alert is activated in your security system. Furthermore, it is observed that the attacker prefers prime numbers for 'q', and 'd' follows a pattern in the Fibonacci sequence. Now, consider 'd=13' seconds (a Fibonacci number) and various values of 'q' (a prime number) and 'T'. Which among the following scenarios will most likely trigger an alert?
Answer(s): A
The correct answer is A because q*d = 17*13 = 221 seconds exceeds T=220, triggering the alert, which aligns with the threshold-based detection described.B is incorrect since 13*13 = 169 seconds, which is below T=180, so no alert should fire.C is incorrect as 11*13 = 143 seconds, under T=150, indicating no alert.D is incorrect because 19*13 = 247 seconds, which is below T=260, so the threshold is not crossed and no alert occurs.
You are an ethical hacker contracted to conduct a security audit for a company. During the audit, you discover that the company's wireless network is using WEP encryption. You understand the vulnerabilities associated with WEP and plan to recommend a more secure encryption method. Which of the following would you recommend as a suitable replacement to enhance the security of the company's wireless network?
WPA2-PSK with AES provides strong confidentiality and integrity for WPA2 networks, addressing WEP’s flaws with robust AES-based CCMP and the pre-shared key model suitable for small/secure deployments. A) Open System authentication offers no encryption, leaving traffic unprotected. C) SSID broadcast disabling is security through obscurity and does not fix encryption weaknesses or provide data protection. D) MAC address filtering only controls client access at the link layer and does not secure traffic or prevent eavesdropping or spoofing on the network. Therefore B correctly upgrades to a widely supported, strong encryption standard.
You are the lead cybersecurity analyst at a multinational corporation that uses a hybrid encryption system to secure inter-departmental communications. The system uses RSA encryption for key exchange and AES for data encryption, taking advantage of the strengths of both asymmetric and symmetric encryption. Each RSA key pair has a size of 'n' bits, with larger keys providing more security at the cost of slower performance. The time complexity of generating an RSA key pair is O(n^2), and AES encryption has a time complexity of O(n). An attacker has developed a quantum algorithm with time complexity O((log n)^2) to crack RSA encryption. Given 'n=4000' and variable 'AES key size', which scenario is likely to provide the best balance of security and performance?
Answer(s): D
AES key size=512 bits: This configuration maximizes data encryption strength, aligning with one-time-use security goals and compensating for RSA’s quantum vulnerability, given the attacker’s O((log n)^2) quantum attack on RSA with n=4000. Although AES scales with O(n) in key length, 512-bit keys provide the strongest practical protection among the options, making brute-force infeasible within realistic constraints.A) AES 128-bit is weaker than 512-bit, reducing overall security and not offering the best protection against quantum-assisted cases, despite faster AES.B) AES 256-bit increases security over 128-bit but still far below 512-bit in terms of brute-force resistance, and RSA key generation remains unaffected by AES choice.C) AES 192-bit offers intermediate security, but does not reach the maximum protection level of 512-bit, while still incurring substantial processing for quantum-vulnerable RSA.
An experienced cyber attacker has created a fake LinkedIn profile, successfully impersonating a high-ranking official from a well-established company, to execute a social engineering attack. The attacker then connected with other employees within the organization, receiving invitations to exclusive corporate events and gaining access to proprietary project details shared within the network. What advanced social engineering technique has the attacker primarily used to exploit the system and what is the most likely immediate threat to the organization?
The attacker uses a highly credible pretext (impersonating a high-ranking official) to target specific individuals, which defines whaling and targeted attacks, matching A. A) Whaling and Targeted Attacks: Correct because whaling targets high-value individuals with tailored social engineering under a believable pretext. B) Pretexting and Network Vulnerability: Pretexting is part of social engineering, but “network vulnerability” is not the immediate risk description here; the technique is more accurately whaling. C) Spear Phishing and Spam: Spear phishing involves targeted phishing, but the scenario emphasizes executive impersonation and event access rather than generic email spam. D) Baiting and Involuntary Data Leakage: Baiting relies on physical or digital bait; data leakage is not forced involuntary in this case.
As a cybersecurity analyst for a large corporation, you are auditing the company's mobile device management (MDM) policy. One of your areas of concern is data leakage from company-provided smartphones. You are worried about employees unintentionally installing malicious apps that could access sensitive corporate data on their devices. Which of the following would be an effective measure to prevent such data leakage?
A policy that only allows app installations from approved corporate app stores prevents sideloading and unvetted apps, reducing the risk of malicious data access and leakage on managed devices.A) Biometric authentication helps security for device access but does not control which apps are installed or mitigate data leakage from malicious apps.B) Regular Wi-Fi password changes do not address app provenance or enterprise data leakage via MDM-managed devices.C) VPNs protect data in transit but do not stop malicious apps from accessing or exfiltrating data locally on the device.D) Approved corporate app stores enforce app vetting and control, directly reducing the attack surface.
A certified ethical hacker is carrying out an email footprinting exercise on a targeted organization using eMailTrackerPro. They want to map out detailed information about the recipient's activities after receiving the email. Which among the following pieces of information would NOT be directly obtained from eMailTrackerPro during this exercise?
EmailTrackerPro focuses on tracking email delivery and open activity, but cannot reliably determine the specific type of device used to read the email for a given recipient.A) Geolocation of the recipient — can be inferred from IP/logs when the email is opened with tracking pixels or similar data.B) Type of device used to open the email — not reliably obtainable; user-agent/device context is not exposed by standard tracking data.C) The email accounts related to the domain of the organization — can be gathered via enumeration and domain metadata from headers.D) The time recipient spent reading the email — can be inferred from read-time analytics on open/close events.
You are a cybersecurity trainee tasked with securing a small home network. The homeowner is concerned about potential "Wi-Fi eavesdropping," where unauthorized individuals could intercept the wireless communications. What would be the most effective first step to mitigate this risk, considering the simplicity and the residential nature of the network?
A) Enable encryption on the wireless network. Strong encryption (e.g., WPA3/WPA2) directly protects data in transit from eavesdroppers, making intercepted frames unreadable without the key, which is essential for preventing Wi-Fi eavesdropping in a home setup. B) Disable SSID broadcast is not a reliable security measure and can hinder legitimate use; it does not prevent interception. C) MAC address filtering is easily bypassed and offers minimal protection against eavesdropping. D) Reducing signal strength may reduce range but does not address interception of traffic by a nearby attacker and can degrade legitimate access. B is the most effective first step.
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