- (Exam Topic 2)
A penetration tester was able to compromise a host using previously captured network traffic. Which of the following is the result of this action?
Correct Answer:
D
A replay attack is a form of network attack in which valid data transmission is maliciously or fraudulently repeated or delayed12. This can allow an attacker to compromise a host by resending a previously captured message, such as a password or a session token, that looks legitimate to the receiver1. A replay attack can be prevented by using methods such as random session keys, timestamps, or one-time passwords that expire after use12. A replay attack is different from an integer overflow, which is a type of software vulnerability that occurs when an arithmetic operation attempts to create a numeric value that is too large to be represented within the available storage space3. A race condition is another type of software vulnerability that occurs when multiple processes access and manipulate the same data concurrently, and the outcome depends on the order of execution3. A memory leak is a type of software defect that occurs when a program fails to release memory that is no longer needed, causing the program to consume more memory than necessary and potentially affecting the performance or stability of the system3.
- (Exam Topic 4)
A company purchased cyber insurance to address items listed on the risk register. Which of the following strategies does this represent?
Correct Answer:
B
A company purchased cyber insurance to address items listed on the risk register. This represents a transfer strategy. A transfer strategy involves transferring or sharing some or all of the responsibility or impact of a risk to another party, such as an insurer, a supplier, or a partner. A transfer strategy can help to reduce the financial liability or exposure of the company in case of a security incident or breach. References: https://www.comptia.org/blog/what-is-cyber-insurance
https://www.certblaster.com/wp-content/uploads/2020/11/CompTIA-Security-SY0-601-Exam-Objectives-1.0.pd
- (Exam Topic 3)
A company wants to build a new website to sell products online. The website wd I host a storefront application that allow visitors to add products to a shopping cart and pay for products using a credit card. which Of the following protocols •would be most secure to implement?
Correct Answer:
D
TLS (Transport Layer Security) is a cryptographic protocol that provides secure communication over the internet. It can protect the data transmitted between the website and the visitors from eavesdropping, tampering, etc. It is the most secure protocol to implement for a website that sells products online using a credit card.
- (Exam Topic 4)
Which of the following test describes the risk that is present once mitigations are applied?
Correct Answer:
B
Residual risk is the risk that remains after applying risk mitigation measures, such as controls, policies, or procedures. It reflects the level of uncertainty and potential impact that cannot be completely eliminated by risk management efforts. Residual risk is calculated by subtracting the risk reduction from the inherent risk, or by multiplying the inherent risk by the risk control effectiveness. Residual risk should be compared to the acceptable level of risk to determine if further action is needed or if the risk can be accepted by the
management. References: CompTIA Security+ SY0-601 Certification Study Guide, Chapter 10: Summarizin Risk Management Concepts, page 456; Residual risk - Wikipedia; Residual risk definition and why it’s important - Advisera
- (Exam Topic 4)
Which of the following exercises should an organization use to improve its incident response process?
Correct Answer:
A
A tabletop exercise is a type of simulation exercise that involves discussing hypothetical scenarios and testing the incident response plan in a low-stress environment. A tabletop exercise can help an organization to improve its incident response process by identifying gaps, weaknesses, roles, responsibilities, communication channels, etc., and by evaluating the effectiveness and efficiency of the plan.
