cos(6)

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Questions and Answers

What function is primarily associated with the Network Layer within the OSI model?

Establishing communication sessions

Encryption and decryption of data

Transmission of frames without errors

Assignment of addresses and packet routing (correct)

Which layer of the OSI model is responsible for end-to-end error control and flow control mechanisms?

Data Link Layer

Transport Layer (correct)

Session Layer

Application Layer

Which layer of the OSI model is responsible for the actual hardware specifications used for network communications?

Application Layer

Network Layer

Physical Layer (correct)

Presentation Layer

In which OSI layer does data translation and representation occur to ensure the data is understandable at the receiver's end?

Presentation Layer Signup and view all the answers

What aspect of networking is enhanced by the ability to share hardware resources within a network?

Resource allocation efficiency Signup and view all the answers

What is the primary function of a network in the context of connecting computers?

To facilitate communication and resource sharing among connected computers Signup and view all the answers

Which of the following best describes a Local Area Network (LAN)?

A network that connects computers in a limited geographical area like a building Signup and view all the answers

In a typical network setup, what role does the server play?

It stores, processes, and routes data to other computers in the network Signup and view all the answers

What could be a disadvantage of a desk officer visiting representatives to collect information?

It may be time consuming and labor-intensive Signup and view all the answers

What is one benefit of connecting representatives' computers through a network?

It allows for remote access to physical resources like printers Signup and view all the answers

Which of the following is NOT a typical feature of a dedicated server in a network?

Connecting users to the internet directly Signup and view all the answers

If you were to assess the installation cost of a network, which type of network would likely be the least expensive?

Local Area Network (LAN) Signup and view all the answers

What is a primary characteristic of a network protocol?

It establishes rules for data communication and exchange Signup and view all the answers

What does LAN primarily enable among its connected computers?

Resource sharing and information exchange Signup and view all the answers

Which of the following transmission protocols is NOT typically used in LAN?

WiMax Signup and view all the answers

What is a characteristic of a Campus Area Network (CAN)?

Connects multiple local area networks Signup and view all the answers

Which topology features a single central cable to which all network devices are connected?

Bus topology Signup and view all the answers

What is the maximum speed typically supported by a LAN?

100 Mbps Signup and view all the answers

Which type of network is generally larger than a Campus Area Network but smaller than a Metropolitan Area Network?

Metropolitan Area Network Signup and view all the answers

Which of the following is a requirement for the maintenance of MANs and WANs?

On-site administrator and support staff Signup and view all the answers

What type of LAN specifically utilizes wireless technology for its operation?

WLAN Signup and view all the answers

Which of the following describes Ring topology?

Devices are connected in a closed loop with no ends Signup and view all the answers

What type of network serves to connect numerous LANs over large geographical distances?

Wide Area Network Signup and view all the answers

What is the primary function of the terminator in a bus topology?

To prevent signal reflection Signup and view all the answers

In a bus topology, what happens if the central cable is damaged?

The entire network becomes inoperable Signup and view all the answers

Which cable type is most commonly associated with bus topology?

Coaxial cable Signup and view all the answers

How does a device in a bus topology determine if it should accept the data signal?

By comparing the destination address with its own Signup and view all the answers

What limitation does the addition of more computers create in bus topology?

Slower network performance Signup and view all the answers

What is the role of a hub in a bus topology?

To manage data flow amongst devices Signup and view all the answers

Which of the following is NOT an advantage of bus topology?

Highly fault-tolerant Signup and view all the answers

What method does a ring topology use to control access to the network?

Token passing Signup and view all the answers

How do devices connect in a ring topology?

In a circular form with receivers and transmitters Signup and view all the answers

What is the consequence of a device being unable to transmit data when using bus topology?

It can still receive data from other devices Signup and view all the answers

Which of the following protocols is NOT typically associated with ring topology?

Ethernet Signup and view all the answers

What is a significant disadvantage of star topology?

Failure of the hub or switch brings down the entire network. Signup and view all the answers

Which advantage is unique to ring topology compared to other topologies?

Equal access to the transmission medium. Signup and view all the answers

When considering the OSI model, which of the following statements is true?

It outlines seven distinct layers with specific functions. Signup and view all the answers

What can be a limitation of adding devices to a star topology?

It can increase overall latency in the network. Signup and view all the answers

What is a distinct vulnerability of ring topology?

Removal of one device affects the entire network. Signup and view all the answers

Which complex topologies are mentioned in the context of LAN networking?

Tree and mesh topologies. Signup and view all the answers

In terms of performance, what is a potential effect of adding additional devices in a star topology?

Performance may decrease with more traffic and devices. Signup and view all the answers

Which of the following describes a key feature of the protocols used in star topology?

They involve a controlled flow of data via a central hub. Signup and view all the answers

What aspect of network maintenance is simplified in star topology?

Identification of device malfunctions. Signup and view all the answers

Study Notes

KWASU CODeL Delegation Activities Monitoring

Desk officer needs to monitor various representatives across the country
Representatives track inquiries, program interest, and student registration numbers
Visiting each representative is time-consuming and taxing
A network solution is a more efficient alternative, connecting representatives' computers
This allows information access at the officer's desk

Network Definition

A network is a group of interconnected computers (wired or wireless) enabling communication and resource sharing
Dedicated servers manage data/information, serving other computers (clients)
A network structure is illustrated with computers (A, B, C) connected to a central server, allowing resource sharing such as printers.

Network Types

Networks are classified according to their geographical coverage and associated costs
- LAN (Local Area Network): Connects computers in a small area (room, building, or campus). Computers in a LAN share resources like printers.
- CAN (Campus Area Network): Larger than LANs but smaller than MANs, connecting multiple LANs like different schools in a university
- MAN (Metropolitan Area Network): Connects multiple LANs in a large, populated area for high-speed communication and internet access.
- WAN (Wide Area Network): Links multiple LANs across vast areas (cities, countries). This network often uses the internet or public telephone systems.

Network Topologies

Network topology, defines the structure of how computers are linked together. LANs commonly use:
- Bus Topology: Data travels along a central cable (bus). Devices access data from the bus
- Star Topology: Each device has a direct connection to a central hub or switch. Information travels through the central point.
- Ring Topology: Devices are connected in a closed loop, data passes in a single direction

Bus Topology - Advantages and Disadvantages

Advantages
- Easy to implement
- Scalable (easy to add new devices)
- Relatively inexpensive
Disadvantages
- Network failure if the cable is damaged
- Slows down with more connected devices
- Limited number and length of connected devices
- Single point of failure

Star Topology - Advantages and Disadvantages

Advantages
- Failure of one device does not impact the entire network
- Easy to add or remove devices
- Relatively easy to maintain or troubleshoot
Disadvantages
- More expensive than bus topology
- Hub or switch failure impacts the whole network

Ring Topology - Advantages and Disadvantages

Advantages
- All computers have equal access in the ring
Disadvantages
- Adding/removing devices impacts the entire network
- Failure in one node disrupts the entire network
- Limited network size

Internet Definition

The internet is a network of networks, governed by common protocols (IP).
It provides access to information, files, voice, and videos globally.
It allows accessing learning materials even geographically

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Description

This quiz covers the fundamental concepts of networks, including their definitions, types, and how they facilitate effective monitoring of delegation activities in an educational context. Understand the significance of LAN and other network types in improving communication and resource management.