Collaborative Computing

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Questions and Answers

What is the data transfer rate of a MAN?

Up to approximately 150 Mbps

1 gigabit per second to 100 Gbps (correct)

Up to 100 Mbps

Up to 1000 Mbps

What is the primary purpose of a network?

To provide security

To allow for administration

To reduce equipment cost

To establish a means of sharing data and providing services (correct)

What type of network connects computers and LANs across different geographical locations?

WAN (correct)

LAN

MAN

Wireless Network

What is the largest WAN that connects billions of computers?

Internet Signup and view all the answers

What type of network uses Radio Frequency (RF) connections?

Wireless Network Signup and view all the answers

What is the name of the device that advertises a network name in a wireless network?

Access Point (AP) Signup and view all the answers

What is an example of a wireless network?

Mobile phone networks Signup and view all the answers

What is a characteristic of a centralized model of organization?

All processing is done at one location Signup and view all the answers

What is an example of a network in our everyday life?

Social Network Signup and view all the answers

What is a network according to Definition 2?

An interconnection among two or more computers or computing devices Signup and view all the answers

What type of connections can networks have?

Wired or wireless connections, or both Signup and view all the answers

What is an example of a data resource?

Data sets and databases Signup and view all the answers

What is the definition of a computer network according to Definition 1?

A collection of computers and devices connected together Signup and view all the answers

What is an example of a software resource?

Software applications and tools Signup and view all the answers

What is an example of a hardware resource?

Servers, storage devices, and networking equipment Signup and view all the answers

What is the main characteristic of a network?

A collection of computers and devices connected together Signup and view all the answers

What can be shared over a network according to the content?

Files, documents, printers, and internet connection Signup and view all the answers

What is transit time in the context of networks?

The amount of time taken by a message to travel from one device to another Signup and view all the answers

What is a characteristic of a reliable network?

Robustness and infrequent failures Signup and view all the answers

What is one of the most important advantages of a computer network?

Sharing information Signup and view all the answers

What is another term for network-attached storage devices?

NAS Signup and view all the answers

What is the term for the amount of work done in a unit of time?

Throughput Signup and view all the answers

What is a key criterion for effective communication in a network?

Performance Signup and view all the answers

What is a security concern in a network?

Both A and B Signup and view all the answers

What is one of the benefits of a computer network in terms of hardware?

It facilitates sharing of hardware resources Signup and view all the answers

What is one of the benefits of a computer network in terms of software?

It facilitates sharing of software resources Signup and view all the answers

What is one of the benefits of a computer network in terms of data preservation?

It helps to preserve information Signup and view all the answers

What is one of the benefits of a computer network in terms of communication?

It revolutionizes the way people communicate Signup and view all the answers

What is one of the disadvantages of a computer network?

Security risks and cyberattacks Signup and view all the answers

What is another disadvantage of a computer network?

Data privacy concerns Signup and view all the answers

What can cause network downtime?

Hardware failures, software glitches, or maintenance activities Signup and view all the answers

What is a challenge of managing a large-scale computer network?

It can be complex to design, implement, and manage Signup and view all the answers

What is collaborative computing also known as?

Cooperative Computing Signup and view all the answers

What is the main advantage of a server-based network?

Provides user level security Signup and view all the answers

What is the role of a file server in a network?

Stores files for clients to access Signup and view all the answers

What is a disadvantage of a peer-to-peer network?

Provides share level security Signup and view all the answers

What is the main difference between a client and a server?

Client requests the service and server provides the service Signup and view all the answers

What is the role of a print server in a network?

Provides printing services to clients Signup and view all the answers

What is a disadvantage of a server-based network?

Requires dedicated machine Signup and view all the answers

What is the main characteristic of a peer-to-peer network?

All computers are equal and no computer is designated as the server Signup and view all the answers

Study Notes

Organizational Computational Models

Collaborative computing, also known as cooperative computing, enables computers to share resources and processing power.
There are two methods of collaborative computing: borrowing an entire processor from an idle machine or sharing part of the processing with a client.

Computer Network Architectures

Client-Server Architecture:
- A server manages network resources, such as a mail server, database server, or web server.
- The server provides services, and the client requests and uses these services.
- Advantages: provides user-level security, centralized administration, and works in large environments.
- Disadvantages: requires a dedicated machine, and the cost of the system is higher compared to peer-to-peer networks.
Peer-to-Peer (P2P) Architecture:
- All computers are equal and can act as both clients and servers.
- Advantages: no server is required, no additional cost for a dedicated machine, and can work in small environments.
- Disadvantages: provides share-level security, and can work in small environments only.

Networking Services

File Servers: store files on the network for clients to access, providing a central location for users to find the same data.
Print Server: offers printing services to clients.

Types of Networks

Metropolitan Area Network (MAN):
- Connects computers and other LANs and MANs across different geographical locations.
- Data transfer rate ranges from 1 gigabit per second to 100 Gbps.
- Can be extended up to 30-40 km.
Wide Area Network (WAN):
- Connects computers and other LANs and MANs across different geographical locations, such as countries or continents.
- The Internet is the largest WAN, connecting billions of computers and millions of LANs.
- Data transfer rate is up to approximately 150 Mbps.
Wireless Networks:
- Use Radio Frequency (RF) connections between nodes in the network.
- Types of Wireless Networks:
  - Wireless LANs (WLANs): connect two or more network devices using wireless distribution techniques.
  - Wireless MANs (WMANs): connect two or more wireless LANs across a metropolitan area.
  - Wireless WANs (WWANs): connect large areas comprising LANs, MANs, and personal networks.

Components of a Wireless Network

Clients: end-user devices that request access to a network.
Access Point (AP): a Wi-Fi device advertising a network name (SSID).

Examples of Wireless Networks

Mobile phone networks
Wireless sensor networks
Satellite communication networks

Advantages of Computer Networks

Sharing Information: facilitates sharing of information among users.
Sharing Hardware Resources: enables sharing of hardware resources effectively.
Sharing Software Resources: allows sharing of software resources and applications.
Preserve Information: helps to preserve information by making regular backups.
Communication: revolutionizes the way people communicate, enabling instant messaging and file sharing.

Disadvantages of Computer Networks

Security Risks: susceptible to security breaches and cyberattacks.
Data Privacy Concerns: raises concerns about data privacy and confidentiality.
Network Downtime: may experience downtime due to hardware failures, software glitches, or maintenance activities.
Network Complexity: large-scale networks can be complex to design, implement, and manage.

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Description

This quiz covers collaborative computing, also known as cooperative computing, which enables computers to share resources and processing power. It involves servers borrowing processing power from idle machines to perform actions.