Computer Networks Overview Quiz

Questions and Answers

What is the total maximum score for the final exam?

5 Marks

60 Marks

15 Marks

40 Marks (correct)

Which of the following is not a method of telecommunication?

Telecasting (correct)

Telephony

Teleconferencing

Telegraphy

What consequence is mentioned for late attendance?

Make-up exam opportunities

Increased quiz weight

No consequence

Attendance penalty (correct)

What is a key focus of the course objectives in Computer Networks?

Designing network systems Signup and view all the answers

Which textbook is listed for this course?

Data Communications and Networking by Behrouz Forouzan Signup and view all the answers

What is the focus of data communications according to the content?

Exchanging data between devices Signup and view all the answers

Which of the following penalties is applied for homework assignments?

Absence is not an excuse for missing submissions Signup and view all the answers

What technology is mainly utilized in telecommunication?

Electrical signals and electromagnetic waves Signup and view all the answers

What is the primary purpose of a transmission medium in a telecommunications system?

To carry the signal Signup and view all the answers

Which of the following components is NOT considered part of a telecommunications network?

User manuals Signup and view all the answers

What role do input and output devices play in telecommunications networks?

They provide points for communication initiation and termination Signup and view all the answers

Which of the following best describes telecommunication processors in a network?

They process incoming and outgoing data Signup and view all the answers

What is the primary function of telecommunication channels?

To transmit and receive data. Signup and view all the answers

What is the function of protocols in telecommunication networks?

To dictate the rules for data communication Signup and view all the answers

Which of the following is an example of a terminal in telecommunications?

Telephone Signup and view all the answers

Which of the following best describes the role of telecommunication processors?

To provide control and support functions including data conversion. Signup and view all the answers

Which statement best describes the role of protocols in telecommunication systems?

Protocols specify how devices should exchange information. Signup and view all the answers

Which component is essential for the efficient and reliable exchange of data across devices in a telecommunications system?

Networks Signup and view all the answers

Which protocol is used for communications over the Internet?

TCP/IP Signup and view all the answers

Which topology connects all devices to a single communication line?

Bus Topology Signup and view all the answers

What does control software do in a telecommunication network?

It controls network functionality and activities. Signup and view all the answers

What is the main technology used to facilitate a telephone network?

A combination of wired and wireless technologies. Signup and view all the answers

What do messages represent in a telecommunication network?

Actual data being transferred. Signup and view all the answers

What does the term 'nodes' refer to in computer networks?

Input and output devices in the network Signup and view all the answers

What describes a wired connection in a computer network?

Utilizes physical cables like twisted-pair and fiber optic Signup and view all the answers

What characterizes a ring topology in a network?

Devices are arranged in a circular chain Signup and view all the answers

Which of the following is NOT a component of a telecommunication network?

File storage systems Signup and view all the answers

Which of these internet connection types is generally considered the slowest?

Dial-up Signup and view all the answers

What technology is required to connect to the internet via cable service?

Cable Modem Signup and view all the answers

Which management method involves a single central server managing all resources?

Centralized Management Signup and view all the answers

In decentralized management, how are management tasks handled?

They are distributed across multiple administrators or devices Signup and view all the answers

Which of the following is NOT a type of network topology?

Polygon Topology Signup and view all the answers

Which of the following internet connection types provides significantly faster speeds than traditional cable or DSL?

Fiber Connection Signup and view all the answers

What distinguishes distributed management from centralized management?

Management tasks are distributed across multiple nodes Signup and view all the answers

Which method of connection does NOT use physical media?

Wireless Connection Signup and view all the answers

What type of DSL connection is provided by cable operators?

ADSL Signup and view all the answers

How does wireless broadband connect a user's location to the internet?

Using a radio link Signup and view all the answers

What is a major advantage of fiber optic internet over copper wire connections?

Less distortion over long distances Signup and view all the answers

Which option is NOT a method for gaining internet access?

Satellite Connection Signup and view all the answers

Which of the following statements is true regarding cable service connections?

They use spare TV channels for data transmission. Signup and view all the answers

Study Notes

Grading Policy

Mid Exam: 15 Marks, no make-up exam allowed.
Final Exam: 40 Marks.
Quizzes: 5 Marks, no make-up quizzes permitted.
Attendance: 5 Marks, penalties apply for late attendance.
Assignments: 5 Marks, late submissions will not be accepted.

Course Objectives

Aims to provide comprehensive understanding of computer networks and underlying technologies.
Focus on network classifications, configurations, protocols, and transmission techniques.
Develop skills to analyze network requirements, design systems, and facilitate information exchange.

Textbooks

Primary textbook: "Data Communications and Networking" by Behrouz Forouzan.

Telecommunication

Definition: Communication over distances using electrical signals or electromagnetic waves.
Involves various forms, including telephony, telegraphy, and television.

Data Communications

Defined as the exchange of data between two devices via transmission media.
Requires a transmission medium and a receiver to convert signals into usable information.

Telecommunication Networks

Modern telecommunications systems operate as interconnected networks.
Networks facilitate the transmission of information over long distances, such as the internet and VoIP systems.
Six basic components: Input and output devices, telecommunication channels, processors, control software, messages, and protocols.

Components of a Telecommunication Network

Input/Output Devices: Terminals initiating and terminating communication (e.g., phones, computers).
Telecommunication Channels: Mediums for data transmission, including cables and wireless frequencies.
Telecommunication Processors: Functions include data conversion (analog to digital).
Control Software: Manages network devices, performance, settings, and troubleshooting.
Messages: Data transferred between devices; format varies by application or protocol.
Protocols: Guidelines for data exchange and communication reliability (e.g., TCP/IP, GSM).

Telephone Network

A telecommunications system enabling users to make voice calls over long distances.
Utilizes both wired (e.g., twisted-pair, coaxial, fiber optic) and wireless technologies.

Types of Computer Networks

Described by size, transmission media, management method, and topology.
Management Methods:
- Centralized Management: One server controls all resources.
- Decentralized Management: Distribution of management tasks among multiple administrators.
- Distributed Management: No central server; management spreads across nodes.

Network Topology

Bus Topology: All devices on a single cable.
Star Topology: Each device connects to a central hub or switch.
Ring Topology: Devices form a circular chain, each connected to two adjacent ones.
Mesh Topology: Every device connects to every other device directly.

Internet Access Methods

Different ways to access the internet include:
- Dial-up: Basic, slower connection through telephone lines.
- ISDN: Integrated Services Digital Network for digital data transmission.
- DSL: Digital Subscriber Line, faster than dial-up.
- Cable Service: High-speed access via cable television infrastructure.
- Fiber Connection: Fiber optic broadband offers faster speeds and higher reliability.
- Wireless Connection: Uses radio link to connect customers to service providers.

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Description

Test your understanding of computer networks and underlying technologies with this quiz. Explore topics such as network classifications, configurations, and protocols. Perfect for students looking to solidify their knowledge in this essential area of computer science.