BYU-ITC-515R-ACT

Homework 1 – Basic Networking

1. Question: Which command can you use to check the current IP configuration of your machine in Linux?
   • Answer: ifconfig or ip a
2. Question: What is the name of the protocol used to assign IP addresses dynamically?
   • Answer: DHCP or Dynamic Host Configuration Protocol
3. Question: Identify the class of the IP address 172.16.0.0.
   • Answer: Class B or B
4. Question: What does the acronym DNS stand for?
   • Answer: Domain Name System
5. Question: How many bits are there in an IPv4 address?
   • Answer: 32
6. Question: What is the maximum number of hosts you can have on a /24 network?
   • Answer: 254
7. Question: Which protocol is used to securely connect to a remote server over a network?
   • Answer: SSH or Secure Shell
8. Question: What port number is used by HTTP?
   • Answer: 80
9. Question: What port number is used by HTTPS?
   • Answer: 443
10. Question: What port number is used by DNS?
    • Answer: 53
11. Question: What port numbers are used by FTP?
    • Answer: 20,21
12. Question: What port number is used by MYSQL?
    • Answer: 3306
13. Question: What port number is used by Postgres?
    • Answer: 5432
14. Question: What type of network device is used to forward data between different networks?
    • Answer: Router