Question 1

Why are binary digits used to represent information on a computer?

Accepted Answer

The devices used to store and manage data on a computer are cheaper and more reliable if they only have to represent two possible states. Every electrical signal is considered to be either "low" or "high" that maps to the binary digits 0 and 1.

Question 2

Explain what is meant by a compression ratio of 3/4.

Accepted Answer

The size of the compressed data divided by the size of the original data is 3/4. Thus, the data was compressed by 25%.

Question 3

Match the cryptography term to its description.
-Based on a pair of corresponding cipher keys.

Accepted Answer

A)  Route cipher 
B)  Caesar cipher 
C)  Digital certificate 
D)  Public-key cryptography 
A)  Route cipher 
B)  Caesar cipher 
C)  Digital certificate 
D)  Public-key cryptography D

Question 4

What role did Dutch computer scientist Edsger Dijkstra have in the development in high-level programming language design?

Accepted Answer

Edsger Dijkstra was one of the central c

Question 5

Explain the advantages of cloud computing.

Accepted Answer

The concept behind cloud computing is to

Question 6

Describe how a message is transmitted using packet switching.

Accepted Answer

A message (such as an email message) is

Question 7

Describe the important features of the Pep/9 virtual machine.

Accepted Answer

Architectural features include 64K of RA

Question 8

Explain how an S-R latch operates.

Accepted Answer

An S-R latch stores a single binary digi

Question 9

Explain how transistors are used to create gates.

Accepted Answer

A transistor has an input line, an outpu

Question 10

Write the Pep/9 machine language instruction that loads the contents of location 0002 into the accumulator (the opcode for Load Word into Accumulator is 1100).

Accepted Answer

11000001 0

Question 11

_______________ is a language feature that enforces information hiding.

Accepted Answer

The answer of _______________ is a language feature that enforces...

Question 12

Describe paged-memory management.

Accepted Answer

In the paged-memory technique, a process

Question 13

What is a multiplexer?

Accepted Answer

A multiplexer is a circuit tha

Question 14

What actually occurs when a user "visits" a web page?

Accepted Answer

The user specifies the web pag

Question 15

What does a disk-scheduling algorithm do?

Accepted Answer

It decides which out

Question 16

Which of the following does not characterize the imperative (procedural) paradigm for high level programming languages?

Accepted Answer

A)  Sequential execution of instructions 
B)  Use of variables to represent memory locations 
C)  Exemplified by the functional and the logic models of this paradigm 
D)  The use of assignment statements that change the values of variables used in this paradigm. 
E)  Utilized by the dominant programming languages (BASIC, FORTRAN, C, C++, PASCAL) in the historical evolution of computer software. 
A)  Sequential execution of instructions 
B)  Use of variables to represent memory locations 
C)  Exemplified by the functional and the logic models of this paradigm 
D)  The use of assignment statements that change the values of variables used in this paradigm. 
E)  Utilized by the dominant programming languages (BASIC, FORTRAN, C, C++, PASCAL) in the historical evolution of computer software.

Question 17

Drawing boxes for variables and filling in the values is part of following an algorithm, whereas asking questions and deferring details is part of _______________ an algorithm.

Accepted Answer

The answer of Drawing boxes for variables and filling in...

Question 18

What is a file system?

Accepted Answer

The logical view of

Question 19

Which of the following is an instruction to the assembler program?

Accepted Answer

A)  Assembler directive 
B)  Assembly language instruction 
C)  Comment 
D)  Loader 
E)  Machine language instruction 
A)  Assembler directive 
B)  Assembly language instruction 
C)  Comment 
D)  Loader 
E)  Machine language instruction

Question 20

Give some examples of abstractions as they relate to a computer system.

Accepted Answer

A user might run an application program

Why are binary digits used to represent information on a computer?

Explain what is meant by a compression ratio of 3/4.

Match the cryptography term to its description. -Based on a pair of corresponding cipher keys.

What role did Dutch computer scientist Edsger Dijkstra have in the development in high-level programming language design?

Explain the advantages of cloud computing.

Describe how a message is transmitted using packet switching.

Describe the important features of the Pep/9 virtual machine.

Explain how an S-R latch operates.

Explain how transistors are used to create gates.

Write the Pep/9 machine language instruction that loads the contents of location 0002 into the accumulator (the opcode for Load Word into Accumulator is 1100).

_______________ is a language feature that enforces information hiding.

Describe paged-memory management.

What is a multiplexer?

What actually occurs when a user "visits" a web page?

What does a disk-scheduling algorithm do?

Which of the following does not characterize the imperative (procedural) paradigm for high level programming languages?

Drawing boxes for variables and filling in the values is part of following an algorithm, whereas asking questions and deferring details is part of _______________ an algorithm.

What is a file system?

Which of the following is an instruction to the assembler program?

Give some examples of abstractions as they relate to a computer system.

The Big Picture

Binary Values and Number Systems

Data Representation

Gates and Circuits

Computing Components

Low-Level Programming Languages and Pseudocode

Problem Solving and Algorithms

Abstract Data Types and Subprograms

Object-Oriented Design and High-Level Programming Languages

Operating Systems

File Systems and Directories

Information Systems

Artificial Intelligence

Simulation, Graphics, Gaming, and Other Applications

Networks

The World Wide Web

Computer Security

Limitations of Computing

Filters

Exam 19: broad concept of computer security and its importance in modern society.

Why are binary digits used to represent information on a computer?

Explain what is meant by a compression ratio of 3/4.

Match the cryptography term to its description. -Based on a pair of corresponding cipher keys.

What role did Dutch computer scientist Edsger Dijkstra have in the development in high-level programming language design?

Explain the advantages of cloud computing.

Describe how a message is transmitted using packet switching.

Describe the important features of the Pep/9 virtual machine.

Explain how an S-R latch operates.

Explain how transistors are used to create gates.

Write the Pep/9 machine language instruction that loads the contents of location 0002 into the accumulator (the opcode for Load Word into Accumulator is 1100).

_______________ is a language feature that enforces information hiding.

Describe paged-memory management.

What is a multiplexer?

What actually occurs when a user "visits" a web page?

What does a disk-scheduling algorithm do?

Which of the following does not characterize the imperative (procedural) paradigm for high level programming languages?

Drawing boxes for variables and filling in the values is part of following an algorithm, whereas asking questions and deferring details is part of _______________ an algorithm.

What is a file system?

Which of the following is an instruction to the assembler program?

Give some examples of abstractions as they relate to a computer system.

The Big Picture

Binary Values and Number Systems

Data Representation

Gates and Circuits

Computing Components

Low-Level Programming Languages and Pseudocode

Problem Solving and Algorithms

Abstract Data Types and Subprograms

Object-Oriented Design and High-Level Programming Languages

Operating Systems

File Systems and Directories

Information Systems

Artificial Intelligence

Simulation, Graphics, Gaming, and Other Applications

Networks

The World Wide Web

Computer Security

Limitations of Computing

Filters