Computer Science Quiz

When a sequential file is updated, the _______ file contains a list of all errors occurring during the update process

• New master

• Old master

• Transaction

• Error report

____ who create algorithms to break existing internet networks so as to solve the loopholes in them

• Black Hat Hacker

• Grey Hat Hacker

• White Hat Hacker

• Blue Hat Hacker

In a stream cipher encryption and decryption are done one symbol. We have a plaintext stream a ciphertext stream and a ____

• Key block

• Single key

• Key stream

• Auto key

The complete picture of data stored in database is known as____

• Schema

• System flowchart

• DBMS

• None of the others

The base of the hexadecimal number system is ____

• 2

• 8

• 10

• 16

In a ____ a character (or a symbol) in the plaintext is always changed to the same character the ciphertext regardless of its position in the text (Choose 2 answers)

• Monoalphabetic cipher

• Substitution cipher

• Polyalphabetic cipher

• Transposition cipher

The first generation of computers available was based on the bits micro processors.

• 4

• 8

• 16

• 64

• None of the others

The____ manager is responsible for archiving and backup.

• Memory

• Process

• Device

• File

A computer has 32 MB (megabytes) of memory. How many bits are needed to address any memory?

• 5 bits

• 20 bits

• 25 bits

• 32 bits

____ supervises the activity of each component in a computer system.

• An operating system

• Hardware

• A queue

• An application program