Doubtly
@Doubtly · Joined Feb 2021
- Answers
- 3,792
- Questions
- 4,033
- Upvotes received
- 424
- Describe how logistic regression can be used as a classifier. Logistic regression is one of the most popular Machine Learning algorithms, which comes under the Supervised Learning technique. It is used... 1
- List and explain methods that can be used for sentiment analysis. Sentiment analysis is the process of identifying and extracting subjective information from text, such as opinions and emotions. There are s... 1
- Why use autocorrelation instead of autocovariance when examining stationary time series? Autocorrelation and autocovariance are one of the most critical metrics in financial time series econometrics. Both functions are based on c... 2
- What is an analytic sandbox, and why is it important ? An analytical sandbox is a testing environment that is used by data analysts and data scientists to experiment with data and explore various... 1
- Explain with examples, keyed and keyless transposition ciphers. Transposition Cipher: A transposition cipher does not substitute one symbol for another (as in substitution cipher), but changes the locatio... 1
- List and explain characteristics needed in secure hash function. Properties/ characteristics of hash functions To be a reliable cryptographic tool, the hash function should have the following charactersitc... 1
- Give the format of X.509 digital certificate and explain the use of a digital signature in it An X.509 digital certificate is a standard format for public key certificates used in various internet protocols, such as TLS/SSL for secure... 1
- Encrypt “The key is hidden under the door” using playfair cipher with keyword “domestic”. Playfair Matrix: D O M E S T I C A B F G H K L N P Q R U V W X Y Z Encrypted Message: CFARAEBOGCMVOSPNVTAYCFSOMWEP 3
- List and explain vulnerabilities in windows operating system Windows operating systems have been targeted by various types of vulnerabilities over the years. Here are some common vulnerabilities found... 1
- User A and B decide to use Diffie-Hellman algorithm to share a key. Answer to : What is need of Diffie-Hellman algorithm. User A and B decide to use Diffie-Hellman algorithm to share a key. They choose p = 23... 2
- User A and B want to use RSA to communicate securely Answer to : User A and B want to use RSA to communicate securely. A chooses public key as (7, 119) and B chooses public key as (13, 221). Ca... 3
- d. List and explain security requirements of database. A database is an organized collection of structured data stored electronically in a computer system. It is designed to efficiently manage, r... 2
- Explain Diffie hellman key exchange algorithm. The Diffie-Hellman key exchange (also known as exponential key exchange) is a method for securely exchanging cryptographic keys over an inse... 1
- Explain clickjacking and session hijacking. Clickjacking: Clickjacking is a deceptive technique used by attackers to trick users into clicking on something different from what they per... 1
- Describe services and mechanisms in CSS Security services A processing or communication service that enhances the security of the data processing systems and the information transf... 1
- Briefly explain database security. Database security involves implementing measures to protect a database from unauthorized access, data corruption, and other threats. Its req... 1
- Enlist various functions of protocols of SSL. Secure Socket Layer (SSL) provides security to the data that is transferred between web browser and server. SSL encrypts the link between a... 1
- Explain digital signature scheme RSA. Digital Signature : As the name sounds are the new alternative to sign a document digitally. It ensures that the message is sent by the inte... 1