Tag: security

Questions Related to security

Which kind of testing has Throughput, processing delay, and load as metrics?

technology security

  1. Functional Testing

  2. Performance Testing

  3. Environment Testing

  4. Fault Injection

Show answer
Correct Option: B

Mitigating the risk of one security control being compromised by providing multiple layers of security controls is an example of what specific security strategy?

technology security

  1. Secure-by-default

  2. Secure-by-design

  3. Defense-in-depth

  4. Defense-by-design

Show answer
Correct Option: C
Explanation:

To solve this question, the user needs to understand different security strategies and their definitions.

The option that describes the security strategy where multiple layers of security controls are used to mitigate the risk of one security control being compromised is:

C. Defense-in-depth

Explanation:

Defense-in-depth is a security strategy that involves layering multiple security controls to protect assets. In this strategy, if an attacker manages to breach one security control, there are other layers of security controls to prevent further access. This approach helps to mitigate the risk of any single security control being compromised. Therefore, the correct answer is option C.

Options A, B, and D are incorrect because:

A. Secure-by-default is a security strategy that involves setting secure defaults to minimize the attack surface. This strategy aims to make the system secure by default without requiring any additional configuration.

B. Secure-by-design is a security strategy that involves designing systems with security in mind from the beginning. This approach aims to make the system inherently secure through design choices such as minimizing attack surfaces and implementing secure coding practices.

D. Defense-by-design is not a recognized security strategy.

Hash is define as
technology security

  1. A function that encrypts the data provided.

  2. A function that transforms a string of characters into a number known as the message digest .

  3. A function that uses MD5 algorithm with private key to decrypt

  4. All the above

Show answer
Correct Option: B
Explanation:

To answer this question, the user needs to understand the concept of hash functions and their purpose in cryptography.

Option A is incorrect because hash functions are not used for encryption; rather, they are used for creating fixed-size and unique representations of input data.

Option B is correct. A hash function takes an input (usually a string of characters) and produces a fixed-size output, called a message digest or hash value. This value is typically much smaller than the input, making it easier to store and compare. Hash functions are used for a variety of purposes, including data integrity checking, password storage, and digital signatures.

Option C is incorrect because hash functions are one-way functions, meaning that they cannot be easily reversed. They are not used for decryption.

Therefore, the correct answer is:

The Answer is: B. A function that transforms a string of characters into a number known as the message digest.

Which of the following involves validating the positive and negative requirements of the software?

technology security

  1. Functional Testing

  2. Performance Testing

  3. Environment Testing

  4. Fault Injection

Show answer
Correct Option: A

Which of the following techniques involves examining the source code for the absence of security characteristics?

technology security

  1. Source code analysis

  2. Property-based Testing

  3. Black Box debugging

  4. Dynamic Code Analysis

Show answer
Correct Option: B

AI Explanation

To answer this question, you need to understand the different techniques used in software testing and security analysis.

Option A) Source code analysis - This option involves examining the source code of a program to identify vulnerabilities and security flaws. It focuses on analyzing the code structure, logic, and implementation details. This technique can help identify security vulnerabilities, but it does not specifically involve examining the absence of security characteristics.

Option B) Property-based Testing - This option is the correct answer. Property-based testing is a technique that involves specifying properties or characteristics that should hold true for a given software system. These properties are expressed as logical assertions or constraints. In this technique, the source code is examined to check if the expected security characteristics or properties are absent, which can indicate potential security vulnerabilities.

Option C) Black Box debugging - This option refers to a debugging technique where the tester has no knowledge of the internal workings of the software being tested. It focuses on observing the input-output behavior of the system to identify issues or errors. While black box debugging can help identify security vulnerabilities, it does not specifically involve examining the absence of security characteristics.

Option D) Dynamic Code Analysis - This option involves analyzing the behavior of a program during runtime. It includes techniques such as code instrumentation and dynamic analysis to identify security vulnerabilities. However, dynamic code analysis focuses on identifying vulnerabilities in the code that is actually executed, rather than examining the absence of security characteristics.

The correct answer is Option B) Property-based Testing. This technique involves examining the source code to check for the absence of specific security characteristics or properties, which can help identify potential security vulnerabilities.

Which of the following techniques is used to trace system calls as the software is executing?

technology security

  1. Source code analysis

  2. Performance Testing

  3. Black Box debugging

  4. Dynamic Code Analysis

Show answer
Correct Option: D

AI Explanation

To answer this question, you need to understand the different techniques used for tracing system calls during software execution. Let's go through each option to understand why it is correct or incorrect:

Option A) Source code analysis - This option is incorrect because source code analysis involves reviewing the source code of a program to identify potential issues or bugs. It does not involve tracing system calls during software execution.

Option B) Performance testing - This option is incorrect because performance testing focuses on evaluating the speed, responsiveness, and stability of a software system under varying workloads. It does not involve tracing system calls during software execution.

Option C) Black Box debugging - This option is incorrect because black box debugging refers to the process of debugging a software system without access to its internal workings. It does not specifically involve tracing system calls during software execution.

Option D) Dynamic Code Analysis - This option is correct because dynamic code analysis is a technique used to trace system calls as the software is executing. It involves analyzing the behavior of a program at runtime to identify system calls and understand how they are being used.

The correct answer is D) Dynamic Code Analysis. This option is correct because it specifically involves tracing system calls during software execution.

Which of the following techniques is particularly useful for finding incorrect use of pointers and arrays?
technology security

  1. Binary Fault Injection

  2. Property-based Testing

  3. Source code fault injection

  4. Black Box Debugging

Show answer
Correct Option: C

George obtains code that steals user session keys. He is able to post the code on a compromised website where Alice has an account. When she accesses the site he session key is sent to George? What type of attack is this ?

technology security

  1. SQL Injection

  2. Cross site scripting (XSS)

  3. Buffer Overflow

  4. None of the choices

Show answer
Correct Option: B

Alice access the following URL : http://www.testrun.com/%2e/2e%2e%2e@2e%2f/etc/passwd What is the name of the attack ?

technology security

  1. Buffer overflow

  2. Cross site scripting (XSS)

  3. Directory traversal

  4. Obfuscation

Show answer
Correct Option: C

There are various HTTP authentication mechanisms to authenticate the user towards web application. Which of the following authentication schemes where login / password credentials are sent to the web server in clear text ?
technology security

  1. Client Certificates

  2. Basic

  3. Digest

  4. NTLM

Show answer
Correct Option: B
Explanation:

To solve this question, the user needs to have knowledge of different HTTP authentication mechanisms and their characteristics.

Now, let's go through each option and explain why it is right or wrong:

A. Client Certificates: This option is incorrect because client certificates are used to authenticate the client to the server and are typically encrypted, not sent in clear text.

B. Basic: This option is correct. Basic authentication is one of the simplest authentication schemes and sends login and password credentials in clear text. This means that if someone intercepts the traffic, they can read the credentials and potentially use them to gain unauthorized access to the system.

C. Digest: This option is incorrect because Digest authentication uses a challenge-response mechanism to authenticate the user and does not send the credentials in clear text.

D. NTLM: This option is incorrect because NTLM authentication uses a challenge-response mechanism and does not send the credentials in clear text.

Therefore, the correct answer is:

The Answer is: B