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Session 3: Understanding Ports and Port Management

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Questions and Answers

What is the primary purpose of Port 22 in computer networking?

To access websites using hypertext transfer protocol
To send and receive emails
To transfer files between devices
To facilitate secure shell protocol (correct)

What is the significance of Port 80 in network communication?

It enables file transfer protocol
It enables secure shell protocol
It facilitates secure email transfer
It allows access to websites using hypertext transfer protocol (correct)

What is the purpose of reserved ports in computer networking?

To facilitate communication between devices on a local network
To prioritize traffic on a network
To assign specific services to system ports (correct)
To enable secure access to remote devices

What is the primary implication of port forwarding on network security?

It increases the risk of cyber attacks (A) Signup and view all the answers

What is the significance of DNS in network communication?

It translates domain names to IP addresses (B) Signup and view all the answers

What is the primary advantage of IPv6 over IPv4 in terms of subnetting?

No need for Network Address Translation (NAT) (A) Signup and view all the answers

What is the purpose of the subnet calculator?

To determine if two IP addresses are on the same subnet (A) Signup and view all the answers

What is the significance of the CIDR notation 172.20.42.1/24?

It indicates a subnet mask of 255.255.255.0 (A) Signup and view all the answers

What is the purpose of the 'ifconfig' command?

To display network interface configuration (C) Signup and view all the answers

What is the primary purpose of the 'route' command?

To display the routing table (A) Signup and view all the answers

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