Information systems and technologies

Choose an example of block code

• Shannon-Fano code

• Huffman code

• Hamming code

• None of the given

ASCII code is a

• Variable length code

• Fixed length code

• Error-correction code

• None of the given

A codeword of the Hamming code consists of ________ and ________ bits.

• data; parity

• with errors; without errors

• allowable; not allowable

• none of the given

______ indicate(s) an error in a received combination.

• Parity bits

• Error syndrome

• Data bits

• None of the given

What is information theory?

• Branch of applied mathematics and electrical engineering involving the quantification of information

• Study of plants and animals

• Type of cooking technique

• Branch of psychology

Who is considered the father of information theory?

• Marie Curie

• Isaac Newton

• Claude Shannon

• Albert Einstein

What is the basic unit of information in information theory?

• byte

• kilobyte

• bit

• megabyte

What is the concept of entropy in information theory?

• Measure of uncertainty or randomness in a set of data

• The measure of the size of a data set

• The concept of order and predictability in a set of data

• The concept of causality in a set of data

How is information theory used in communication systems?

• Count the number of words in a message

• Use only verbal communication without any written records

• Quantify the amount of information transmitted and design efficient coding schemes

• Create random noise in the communication channel

The basic idea behind Shannon-Fano coding is to

• compress data by using more bits to encode more frequently occuring characters

• compress data by using fewer bits to encode more frequently occuring characters

• compress data by using fewer bits to encode fewer frequently occuring characters

• expand data by using fewer bits to encode more frequently occuring characters