Introduction to Networks

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Questions and Answers

What are the two main types of IP Address?

Static and Dynamic

Match the classes of IP Address with their address ranges:

Class A = 1.0.0.1 to 126.255.255.254 Class B = 128.1.0.1 to 191.255.255.254 Class C = 192.0.1.1 to 223.255.254.254 Class D = 224.0.0.0 to 239.255.255.255 Class E = 240.0.0.0 to 254.255.255.254

What are the simple tests you can conduct to make sure your network is functional?

Check the physical connections, Verify that you can log on, Check the network configuration, Verify that the computers can ping each other.

What is the purpose of a Patch Panel?

Commonly used for connecting and routing circuits for monitoring, interconnecting, and testing circuits in a convenient, flexible manner. Signup and view all the answers

Outline how to change wifi name and password.

<ol> <li>Login to the homepage of the router, 2. Change the SSID and wireless password, 3. Reboot the router.</li> </ol> Signup and view all the answers

What is a network?

A collection of computers and related equipment connected so that data can move between them. Signup and view all the answers

Which of the following is NOT a competency listed in the module?

Maintain and repair software systems Signup and view all the answers

A Local Area Network (LAN) can consist of devices connected over a distance greater than 50 miles.

False Signup and view all the answers

A _____ is a powerful computer whose sole purpose is to serve network clients.

network server Signup and view all the answers

Copper cable splicing is performed based on Electronic Industries Alliance/Telecommunications Industry Association standards.

True Signup and view all the answers

What is the purpose of using appropriate personal protective equipment during installation?

To ensure safety during the network installation process. Signup and view all the answers

What should be done with excess components and materials after network installation?

Dispose of them based on WEEE directives Signup and view all the answers

What is the function of a router in a network?

To forward data packets between networks Signup and view all the answers

Which among the network hardware forwards data packets between Local or Wide Area Network groups?

Router Signup and view all the answers

What network hardware strengthens signals and allows them to stay clear over longer distances?

Repeater Signup and view all the answers

Which of the following is the collection of computers and related equipment that are connected so that data can move between them?

Network Signup and view all the answers

Which provides the physical link between your computer and the network?

Network Interface Cards Signup and view all the answers

The smallest of the three network types, consisting of PCs connected together within a limited area, such as within the same building, floor, or department, is called?

Local Area Network Signup and view all the answers

What are examples of network media?

Unshielded Twisted Pair (UTP) Cable, Shielded Twisted Pair (STP) Cable, Coaxial Cable, Fiber Optic Cable, Wireless LANs. Signup and view all the answers

Give the two wiring standards for RJ45.

T568A, T568B. Signup and view all the answers

What are the two most commonly used network cables?

Straight through cable, Crossover cable. Signup and view all the answers

Enumerate the color arrangement of T568B in order.

<ol> <li>Orange Stripe, 2. Orange, 3. Green Stripe, 4. Blue, 5. Blue Stripe, 6. Green, 7. Brown Stripe, 8. Brown.</li> </ol> Signup and view all the answers

What is the purpose of a patch panel?

For connecting and routing circuits Signup and view all the answers

What is a router?

A networking device that forwards data packets between computer networks. Signup and view all the answers

What are the steps to change the WiFi name and password on a router?

<ol> <li>Login to the router homepage. 2. Change the SSID and wireless password. 3. Reboot the router.</li> </ol> Signup and view all the answers

What is typically the first step in setting up a computer network?

Selecting the network hardware Signup and view all the answers

What is the primary role of a network switch in a computer network?

To store and manage network traffic efficiently Signup and view all the answers

Which of the following aspects is least critical during the installation of a network?

Arranging components aesthetically in the server room Signup and view all the answers

What does a subnet mask do in a network?

It determines the host and network portion of an IP address Signup and view all the answers

During the troubleshooting of a network issue, what is the significance of performing a ping test?

It verifies if a device is reachable across the network Signup and view all the answers

Which factor is most important when selecting a network topology?

Scalability and future growth potential Signup and view all the answers

In computer networking, what is the primary function of a DHCP server?

To assign IP addresses dynamically to devices Signup and view all the answers

What is the primary advantage of using fiber optic cables over copper cables in networking?

Greater resistance to electromagnetic interference Signup and view all the answers

What must be done to ensure the wireless signal can be detected on a computer?

Ensure wireless is enabled and SSID Broadcast is checked Signup and view all the answers

What security mode should be selected for wireless settings to ensure secure access?

WPA-PSK Signup and view all the answers

What is the minimum requirement for the Security Key when configuring wireless security?

At least 8 characters long Signup and view all the answers

What should be done last after selecting the appropriate wireless security options?

Hit the Save button to save the settings Signup and view all the answers

Which of the following is NOT needed to configure the Wireless Basic Settings?

Entering the MAC address Signup and view all the answers

What should a student do if they believe their skills are relevant but uncertain about their current applicability?

Discuss their skills with their teacher for clarification. Signup and view all the answers

What is the benefit of obtaining a Certificate of Competency from previous trainings?

It enables formal recognition and avoids redundant training. Signup and view all the answers

What is the primary focus of the module on Setting-up Computer Networks?

Improving diagnostic and troubleshooting skills for computer systems. Signup and view all the answers

What process should a student follow upon completing the module?

Report to their teacher for competency assessment. Signup and view all the answers

How many learning outcomes does this module contain?

Four learning outcomes. Signup and view all the answers

Why are instruction sheets provided in the module?

To support and elaborate on the learning activities. Signup and view all the answers

What role does self-checking play in the learning process of this module?

It helps students confirm their understanding before assessment. Signup and view all the answers

What is emphasized for students concerning the pace of learning activities in this module?

Students are encouraged to complete activities at their own pace. Signup and view all the answers

What is the primary purpose of the competency profile recorded after assessment?

To formally document the student's skill achievements. Signup and view all the answers

What should students do before performing instructions provided in this module?

They must complete the self-check and activities. Signup and view all the answers

What does the network configuration process involve?

Adjusting the network controls, flow, and operation Signup and view all the answers

Which criterion is NOT part of assessing network configuration in a terminal?

Checking compatibility of software applications Signup and view all the answers

Which tool is essential for configuring network settings in accordance with designs?

Diagnostic software Signup and view all the answers

What is a necessary response to unplanned events in network management?

Following established procedures without deviation Signup and view all the answers

Which of the following is a component typically included in network configuration?

RJ45 connectors Signup and view all the answers

In network design, what aspect does NOT need to be configured on the Network Interface Card (NIC)?

Operating system updates Signup and view all the answers

What is the primary purpose of network communication checking between terminals?

To confirm the proper operation of network wiring Signup and view all the answers

Which item is NOT typically necessary for setting up a computer network?

Paper for documentation Signup and view all the answers

What is critical for diagnosing problems in a network system?

Following standard operating procedures Signup and view all the answers

Which of the following does NOT fall under network configuration resources?

Gaming software Signup and view all the answers

What is the primary advantage of using fiber optic cabling in a network environment?

It eliminates the problem of electrical interference. Signup and view all the answers

Which of the following accurately describes the function of a transceiver in a wireless LAN?

It converts data into a format suitable for wireless transmission. Signup and view all the answers

In terms of connectivity, what is the significant difference between a straight-through cable and a crossover cable?

Straight-through cables are used for connecting similar devices, while crossover cables connect different devices. Signup and view all the answers

What distinguishes RJ-45 from RJ-11 connectors?

RJ-45 has 8 positions and is used in Ethernet, whereas RJ-11 has 6 positions for telephone wiring. Signup and view all the answers

Which wiring standard uses the sequence: Orange Stripe, Orange, Green Stripe?

T568A Signup and view all the answers

What is one disadvantage of using wireless LANs compared to wired connections?

Wireless LANs are generally slower due to interference. Signup and view all the answers

What is the maximum number of computers that can be directly connected using a crossover cable?

Two computers Signup and view all the answers

What type of signals do Wireless LANs commonly use for communication?

High-frequency radio signals and infrared light Signup and view all the answers

Which component is NOT typically associated with a fiber optic setup?

Copper shielding Signup and view all the answers

Which statement about the color arrangement of the T568B standard is correct?

It begins with Blue and includes Orange and Brown at the end. Signup and view all the answers

Study Notes

Introduction to Networks

Networks are collections of connected devices like computers, printers, and gaming consoles.
The Internet is a network of networks.
Three basic network categories:
- Local Area Network (LAN): Smallest type, connecting devices in a limited area: building, floor, department.
- Metropolitan Area Network (MAN): Covers a larger area up to 50 miles, connecting several LANs within a town or city.
- Wide Area Network (WAN): Spanning thousands of miles, allowing communication between users globally.

Network Hardware

Network Interface Card (NIC): A printed circuit board, plugging into the computer's motherboard, connecting the computer to the network via cable.
Router: Directs data packets between different network groups (LANs or WANs).
Network Switch: Determines the data flow over large networks.
Repeater: Strengthens signals for longer distances.

Computer Networks

A network is a collection of computers and related equipment connected to allow data to move between them
Network Interface Cards (NICs) provide the physical link between your computer and the network
Network Hubs are the central connection point for all devices on a network
Network Switches are like hubs, but they are more intelligent, allowing data to be transmitted to specific devices on the network
A Local Area Network (LAN) connects computers within a limited area, such as a building or department
A Wide Area Network (WAN) connects computers over a large geographic area, such as a country or continent

Network Cables

Network cables are the physical medium that data travels through
Unshielded Twisted Pair (UTP) cable is the most common and least expensive, using an RJ-45 connector
Shielded Twisted Pair (STP) cable is more expensive and includes a protective shield to minimize interference
Coaxial cable uses a single copper conductor at its center, insulated by a plastic layer and surrounded by a braided metal shield. It is commonly used in television industries
Fiber Optic cable uses a glass core to transmit light signals, making it resistant to interference. Ideal for environments with high electrical interference
Wireless LANs use radio signals, infrared light, or lasers for communication between devices, allowing for flexibility and mobility

RJ45

RJ45 is a standard connector used for Ethernet wiring
RJ45 has 8 positions and 8 conductor, compared to RJ-11 which is used in telephone wiring

Network Cable Wiring Standards

There are two main wiring standards: T568A and T568B
Straight Through cables connect PCs to switches/hubs
Crossover cables connect two computers directly (limited to two computers)

Network Configuration

Network configuration refers to setting the controls, flow, and operation of a network
A patch panel is a device with multiple jacks for connecting and routing circuits, providing flexibility and organization
A patch panel cable management system ensures organized and neat cable arrangements, adhering to industry standards

Router Configuration

A router forwards data packets between computer networks, directing traffic on the Internet
Router configuration allows setting up the network name (SSID), password, and security options
Changing the WIFI name and password helps protect the wireless network
Security modes, like WPA-PSK, provide encryption for the wireless connection

Testing Computer Networks

Once a network is set up, it is essential to test its functionality
Verify physical connections by checking the Link light on each computer and its connection to the switch/router
Attempt to log on to each network computer with a valid user account to confirm connectivity
Use network commands to verify the IP address and default gateway settings on each computer

IP Address

An IP address is like a home address for a computer on a network.
An IP address is a 32-bit number
IP addresses are used for sending and receiving information over a network.
IP addresses are divided into different classes based on their address range.
Class A networks are typically large networks, while Class C networks are typically used for smaller networks.
IP address classes are defined by their address range, which indicates the number of devices that can be connected to the network.
Class D is reserved for multicast groups.
Class E is reserved for experimental purposes.

Types of IP Addresses

Static IP addresses are assigned to a device and do not change.
Dynamic IP addresses change every time a device connects to a network.
The Dynamic Host Configuration Protocol (DHCP) is used to assign dynamic IP addresses.

How to set a Static IP Address

To find the computer's IP address, open the command prompt and type ipconfig.
Find the IP address assigned to the network connection.
To set a static IP address, navigate the Network and Sharing Center, right-click on Local Area Connection, and select properties.
Select Internet Protocol Version 4 and click on Properties.
Select 'Use the following IP address' and enter the IP address found in the command prompt.

Network Connectivity Tests

Physical Connections: Check cables and connections.
Login: Verify the user can log into the network.
Network Configuration: Verify the settings are correct.
Ping Test: Use the ping command to test communication between computers on the network.

Set-up Computer Networks

This module covers setting up computer networks, a key skill for Computer Systems Servicing NCII.
The module consists of 4 learning outcomes with learning activities based on information sheets.
Upon completion, students will be assessed on their knowledge and skills.

Learning Outcome 2: Set network configuration

This outcome involves configuring network settings to ensure proper communication between devices.
Key tasks include:
- Checking each terminal's connectivity according to the network design
- Diagnosing and resolving any network issues
- Configuring network interface card settings based on the network design
- Verifying communication between terminals based on OS network configuration guides
- Addressing unplanned events according to established procedures
The required resources include:
- Computer peripherals
- Desktop computers
- Multi-tester
- Diagnostic software
- RJ45 modular box
- UTP cable
- Assorted pliers
- Assorted screwdrivers
- Anti-static wrist strap
- Crimping tool
- Punch down tool
- USB flash drive
- Computer storage media

Learning Outcome 3: Configure Network Devices

Learning Outcome 3 outlines the process of configuring network devices, including routers and wireless access points.
The goal is to establish secure and reliable connections within the network.
The text discusses the use of a web-based interface for configuring a router's settings:
- Access the router's admin page by entering its default IP address into a web browser.
- Log in using the default username and password.
- Modify settings such as the wireless network name (SSID), security mode, and password.
- Save the configuration changes to apply the new settings.

Learning Outcome 4: Inspect and test the configured computer networks

This outcome emphasizes the importance of thorough inspection and testing to ensure the network operates correctly.
After configuring the network, it is crucial to:
- Perform a final inspection to verify that the configuration aligns with manufacturer instructions.
- Conduct tests to ensure the network is operating safely.
- Prepare reports according to company requirements to document the network configuration and testing results.

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Description

This quiz covers the fundamental concepts of computer networks, including types such as LAN, MAN, and WAN. It also explores essential network hardware like NICs, routers, and switches. Test your understanding of how these components work together to form efficient communication systems.