Consider the hex strings A=0x274dce4716a5705c and B=0x98d54fc92cd0eed0. a) What is A O B in hexadecimal? Please give your answer a leading Ox and use lowercase letters only. hexadecimal: b) Suppose that A was generated uniformly at random from all 8 byte strings. What is the probability that the second binary digit of A is 1? c) Suppose that A was generated uniformly at random from all 8 byte strings. What is the probability that the second binary digit of A O B is 1?

Consider the hex strings A=0x274dce4716a5705c and B=0x98d54fc92cd0eed0. a) What is A O B in hexadecimal? Please give your answer a leading Ox and use lowercase letters only. hexadecimal: b) Suppose that A was generated uniformly at random from all 8 byte strings. What is the probability that the second binary digit of A is 1? c) Suppose that A was generated uniformly at random from all 8 byte strings. What is the probability that the second binary digit of A O B is 1?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Consider the hex strings A=0x274dce4716a5705c and B=0x98d54fc92cd0eed0.
a) What is A O B in hexadecimal? Please give your answer a leading Ox and use lowercase letters only.
hexadecimal:
b) Suppose that A was generated uniformly at random from all 8 byte strings. What is the probability that the second binary digit of A is 1?
c) Suppose that A was generated uniformly at random from all 8 byte strings. What is the probability that the second binary digit of A O B is 1?

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