Tag: security

Questions Related to security

Phishing is essentially another form of:
technology security

  1. Denial of service

  2. Social engineering

  3. Malware

  4. Spyware

Show answer
Correct Option: B
Explanation:

Phishing is a type of social engineering attack. Social engineering attacks exploit human psychology to trick people into revealing sensitive information or clicking on malicious links. Phishing attacks typically involve sending emails or text messages that appear to be from a legitimate source, such as a bank or credit card company. The emails or text messages will often contain a link that, when clicked, will take the victim to a fake website that looks like the real website. Once the victim enters their personal information on the fake website, the attacker can steal it.

Malware, spyware, and denial of service attacks are all different types of cybersecurity attacks. Malware is software that is designed to harm a computer system. Spyware is software that is designed to collect information about a user's computer activities. Denial of service attacks are designed to make a computer system unavailable to its intended users.

Therefore, the correct answer is B. Social engineering.

Here is a table that summarizes the differences between phishing and the other three options:

Attack type Description
Phishing A type of social engineering attack that exploits human psychology to trick people into revealing sensitive information or clicking on malicious links.
Malware Software that is designed to harm a computer system.
Spyware Software that is designed to collect information about a user's computer activities.
Denial of service A type of cybersecurity attack that is designed to make a computer system unavailable to its intended users.

Intrusion detection systems are used to detect all of the following except:
technology security

  1. Physical break-ins

  2. System misuse

  3. Unauthorized changes to system files

  4. SPAM

Show answer
Correct Option: D

Which of the following does not give rise to a vulnerability?
technology security

  1. Hackers

  2. Flaws

  3. Policy failures

  4. Weaknesses

Show answer
Correct Option: A
Explanation:

To answer this question, the user needs to know what vulnerability is. In the context of cybersecurity, vulnerability refers to a weakness in a system that can be exploited by attackers to gain unauthorized access, cause damage, steal data, or disrupt services.

Now, let's go through each option and explain whether it gives rise to a vulnerability:

A. Hackers: This option is correct. Hackers are not a vulnerability themselves but rather a threat that can exploit vulnerabilities. They are individuals or groups who attempt to gain unauthorized access to systems or networks for malicious purposes. While hackers can cause damage if they successfully exploit a vulnerability, they are not the source of the vulnerability itself.

B. Flaws: This option is incorrect. Flaws, such as coding errors or design weaknesses, can create vulnerabilities in systems that can be exploited by attackers. Flaws are one of the primary sources of vulnerabilities and are often exploited by hackers to gain access to systems or data.

C. Policy failures: This option is incorrect. Policy failures, such as weak passwords or lack of access controls, can create vulnerabilities in systems that can be exploited by attackers. Policy failures are another source of vulnerabilities and are often exploited by hackers to gain access to systems or data.

D. Weaknesses: This option is incorrect. Weaknesses, such as outdated software or unpatched vulnerabilities, can create vulnerabilities in systems that can be exploited by attackers. Weaknesses are yet another source of vulnerabilities and are often exploited by hackers to gain access to systems or data.

Therefore, the correct answer is:

The Answer is: A. Hackers

Patch management is a part of:
technology security

  1. Contingency planning

  2. Change control management

  3. Business continuity planning

  4. System update management

Show answer
Correct Option: B

Which of the following devices should not be part of a network's perimeter defense?
technology security

  1. A screening router

  2. A firewall

  3. A proxy server

  4. None of the above

Show answer
Correct Option: C

Which of the following is a principal security risk of wireless LANs?

technology security

  1. Lack of physical access control

  2. Demonstrably insecure standards

  3. Implementation weaknesses

  4. War driving

Show answer
Correct Option: A

AI Explanation

To answer this question, you need to understand the security risks associated with wireless LANs.

Option A) Lack of physical access control - This option is correct because one of the principal security risks of wireless LANs is the lack of physical access control. Unlike wired networks, wireless networks can be accessed from outside the physical premises, making it easier for unauthorized users to gain access to the network.

Option B) Demonstrably insecure standards - This option is incorrect because while there have been instances where wireless LAN standards have been found to have security vulnerabilities, it is not a principal security risk. The standards can be updated and improved to address these vulnerabilities.

Option C) Implementation weaknesses - This option is incorrect because while implementation weaknesses can be a potential security risk, it is not a specific risk associated only with wireless LANs. Implementation weaknesses can occur in any type of network, including wired networks.

Option D) War driving - This option is incorrect because war driving refers to the act of searching for and mapping wireless networks by driving around with a wireless-enabled device. While war driving can be associated with unauthorized access to wireless LANs, it is not a principal security risk in itself.

The correct answer is A) Lack of physical access control. This option is correct because it highlights the key security risk of wireless LANs, which is the ability for unauthorized users to gain access to the network from outside the physical premises.

A Web application firewall may actively defend a Web application by:
technology security

  1. Invalidating the application session

  2. Intercepting data flowing to and from a Web application

  3. Running in a separate process and memory space

  4. Learning about the application behavior

Show answer
Correct Option: A

Potential security disadvantages of virtualization include:

technology security

  1. VM layer configuration is security relevant

  2. More intrusive intrusion detection via introspection

  3. An extra layer for defense-in-depth

  4. More flexible discovery/eviction of kernel root kits

Show answer
Correct Option: A

Why cannot outside programs determine the existence of malicious code with 100 percent accuracy?

technology security

  1. Users do not update their scanners frequently enough

  2. Firewalls are not intended to detect malicious code.

  3. The purpose of a string depends upon the context in which it is interpreted

  4. The sourced code language is often unknown.

Show answer
Correct Option: A

Format string vulnerabilities in programs can be found by:

technology security

  1. Forcing buffer overflows

  2. Submitting random long strings to the application

  3. Causing underflow problems

  4. Including string specifiers in input data

Show answer
Correct Option: D