Podcast
Questions and Answers
What does the ARP protocol primarily resolve?
What does the ARP protocol primarily resolve?
- MAC addresses to domain names
- IP addresses to MAC addresses (correct)
- Domain names to IP addresses
- Hostnames to IP addresses
Which netstat command displays the status of ports in use?
Which netstat command displays the status of ports in use?
- netstat -e
- netstat -s
- netstat -r
- netstat -a (correct)
What information does the netstat -e command provide?
What information does the netstat -e command provide?
- Current resolution of MAC addresses
- Domain name server status
- Ethernet statistics like bytes sent and received (correct)
- Active TCP connection details
In which mode does nslookup print a list of hosts in a domain?
In which mode does nslookup print a list of hosts in a domain?
What is the purpose of the command 'arp -a'?
What is the purpose of the command 'arp -a'?
What does the netstat -r command show?
What does the netstat -r command show?
How does non-interactive mode of nslookup operate?
How does non-interactive mode of nslookup operate?
Which netstat command is used to yield Ethernet statistics?
Which netstat command is used to yield Ethernet statistics?
What is the main purpose of using the 'tracert' command?
What is the main purpose of using the 'tracert' command?
What does the acronym PING stand for?
What does the acronym PING stand for?
Which command would you use to check if the website 'www.uit.edu' is reachable?
Which command would you use to check if the website 'www.uit.edu' is reachable?
When using PING, how can you specify the number of packets to send?
When using PING, how can you specify the number of packets to send?
What action does the command 'ping -a ip address' perform?
What action does the command 'ping -a ip address' perform?
What could happen if a student arrives late to the lab by more than 20 minutes?
What could happen if a student arrives late to the lab by more than 20 minutes?
Which of the following is NOT a valid option for using the ping command?
Which of the following is NOT a valid option for using the ping command?
What should students remember to do with their lab work?
What should students remember to do with their lab work?
What happens if no second argument is provided when using a DNS name server?
What happens if no second argument is provided when using a DNS name server?
Which option in the FTP syntax enables debugging and displays all commands passed between the client and server?
Which option in the FTP syntax enables debugging and displays all commands passed between the client and server?
What does the '-i' parameter do when using FTP?
What does the '-i' parameter do when using FTP?
Which FTP parameter allows for the specification of a text file containing FTP commands to be executed automatically?
Which FTP parameter allows for the specification of a text file containing FTP commands to be executed automatically?
What do the wildcard characters in FTP allow you to do?
What do the wildcard characters in FTP allow you to do?
Flashcards
FTP
FTP
A protocol used for transferring files over the internet.
FTP utility
FTP utility
Transfers files between a computer and a FTP server.
FTP -v parameter
FTP -v parameter
Indicates that FTP server responses won't be shown.
FTP -d parameter
FTP -d parameter
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FTP -i parameter
FTP -i parameter
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Tracert
Tracert
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PING
PING
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IP Address
IP Address
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Domain Name
Domain Name
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–n (in PING)
–n (in PING)
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–a (in PING)
–a (in PING)
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TCP/IP Network
TCP/IP Network
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TCP/IP Protocol Suite
TCP/IP Protocol Suite
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What is ARP and its function?
What is ARP and its function?
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What information does the netstat command provide?
What information does the netstat command provide?
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What does the netstat -a option reveal?
What does the netstat -a option reveal?
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What is the purpose of the nslookup command?
What is the purpose of the nslookup command?
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What is interactive mode in nslookup?
What is interactive mode in nslookup?
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What is non-interactive mode in nslookup?
What is non-interactive mode in nslookup?
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What is the purpose of the ping command?
What is the purpose of the ping command?
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What does the ping -a option do?
What does the ping -a option do?
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Study Notes
Lab Information
- Course Code: CNS301
- Course Title: Computer Networks
- Multiple labs are listed, each with a unique objective and tasks
Lab 01: TCP/IP Utilities
- Objective: Students learn diagnostic commands for troubleshooting network problems.
- Tracert: A utility to trace the route and hop count to a destination.
- Ping: A diagnostic tool to check host reachability (either by name or IP address).
Lab 02: Introduction to Boson Network Simulator and Packet Tracer
- Objective: To increase awareness of Packet Tracer and Boson Network Simulator.
- Boson Network Simulator: Application mimicking network scenarios, allowing design and configuration of network devices (routers/switches) like in a real environment.
- Packet Tracer: Alternative simulator, enabling visual representation of network behaviour. Allows real-time or simulation mode.
Lab 03: Creating Straight and Cross Cable
- Objective: To understand and create straight and crossover cables using RJ-45 connectors and crimping tools.
- Components: Includes twisted-pair cables (STP, UTP, ScSTP), RJ-45 connectors, and crimping tools.
- Purpose of Different Cable Types: Different categories of twisted pair cables are defined based on data rates and usages..
Lab 04: Implementing FTP Server
- Objective: To implement an FTP server on Packet Tracer and explore related commands.
- File Transfer Protocol (FTP): An application layer protocol enabling file transfer between clients and servers over a network.
Lab 05: DHCP and DNS
- Objective: Exploring the efficacy of DHCP (Dynamic Host Configuration Protocol) and DNS (Domain Name System) servers in a wired network.
- DHCP: A network management protocol assigning IP addresses to devices automatically.
- DNS: Converts domain names (e.g., www.example.com) into IP addresses for website/application locations.
Lab 06: HUB and BRIDGE
- Objective: Configuring a network with Hub and Bridge devices.
- Hub: A simple multi-port repeater forwarding data to all connected ports.
- Bridge: Interconnects multiple networks, filtering traffic, improving performance to some extent, and separating collision domains.
Lab 07: Introduction to Switches & Segregation using VLANs
- Objective: Basic switch configuration and segregation of networks using VLANs (Virtual LANs).
- VLANs: Subdivide a physical network into multiple logical networks enhancing privacy and security.
Lab 08: Removing loops using spanning tree protocol and Implementing port security
- Objective: Remove loops in a network using the spanning tree protocol and implement port security on a switch to prevent unauthorized connections.
- Spanning Tree Protocol (STP): A protocol for detecting and preventing loops in a network, improving network reliability.
- Port Security: Implementing limitations on the number of devices connected to ports on a switch, enhancing network security.
Lab 09: Introduction to routers and setting up static routes
- Objective: Introduction to routers and setting up static routes.
- Router: A network device forwarding packets between networks based on routing tables.
- Static Routes: Manually configured routes to guide forwarding packets, ensuring they travel via the desired paths within a network.
Lab 10: Routing Information Protocol
- Objective: Introduction to the routing protocol.
- Routing Protocol: Used by routers for exchanging information about networks and finding the most efficient path to deliver packets.
Lab 11: Inter-VLAN Routing (Using Router-on-Stick)
- Objective: Inter-VLAN routing using router-on-a-stick.
- Router-on-a-Stick: A configuration method enabling inter-VLAN communication through a single physical router interface.
Lab 12: Routing Protocol IGRP & EIGRP
- Objective: Introduction to IGRP (Interior Gateway Routing Protocol) and EIGRP (Enhanced Interior Gateway Routing Protocol)
- IGRP: Legacy distance vector protocol providing multiple metrics.
- EIGRP: Advanced distance vector protocol improving convergence speed and efficiency through incremental updates.
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Description
Explore the objectives and tools used in various labs of the Computer Networks course (CNS301). Learn about TCP/IP utilities for troubleshooting, the Boson Network Simulator, and Packet Tracer for network design. Understand practical tasks like creating straight and cross cables to enhance your networking skills.
