Get All Modules The Bits and Bytes of Computer Networking Graded Quiz Answers
Table of Contents
Q1. At the very lowest level, what data does a computer understand?
Answer: Binary numbers
Explanation: At the lowest level, computers understand binary numbers (0s and 1s), which are used to represent all data and instructions.
Q2. Which type of Domain Name System (DNS) server performs a full name resolution request?
Answer: Recursive name server
Explanation: A recursive DNS server performs a full name resolution request by querying other DNS servers to resolve the domain name to an IP address.
Q3. What port on a name server is used for User Datagram Protocol (UDP) name request packets?
Answer: 53
Explanation: Port 53 is used by DNS servers for both UDP and TCP packets to handle domain name requests and responses.
Q4. A video conferencing application isn’t working due to a Domain Name System (DNS) port error. Which resource record requires modification to fix the issue?
Answer: Service record (SRV)
Explanation: The SRV record specifies the location of services, including video conferencing servers, and may need to be adjusted if there’s a DNS issue affecting service resolution.
Q5. Which portion of a domain is known as the ‘www” portion?
Answer: The subdomain
Explanation: “www” is a subdomain of the main domain name. It is typically used to designate the web service of a domain.
Q6. Along with an IP address, a subnet mask, and a name server, which of the following is the other thing required for a computer to operate on a network?
Answer: A gateway
Explanation: A gateway is required for a computer to communicate outside its local network, in addition to the IP address, subnet mask, and name server.
Q7. Network Address Translation (NAT) is typically implemented with which of these hardware devices?
Answer: Routers
Explanation: NAT is typically implemented on routers to translate private IP addresses to public IP addresses for communication over the internet.
Q8. What NAT technique allows for complete IP masquerading, while still having services that can respond to incoming traffic?
Answer: Port forwarding
Explanation: Port forwarding allows services behind a NAT to respond to incoming traffic by mapping specific external ports to internal services.
Q9. VPNs often use an authentication procedure that requires a user to generate a short-lived numerical token through a specialized piece of hardware or software, in addition to providing a username and password. What is this authentication procedure called?
Answer: Two-factor authentication
Explanation: Two-factor authentication (2FA) requires both something the user knows (username and password) and something the user has (a time-sensitive token).
Q10. What service acts on behalf of a client in order to access another service?
Answer: A proxy server
Explanation: A proxy server acts as an intermediary between a client and a server, allowing clients to access services indirectly for various purposes like security or caching.
Get All Module The Bits and Bytes of Computer Networking Practice Quiz Answers >>
Module 01 Challenge: Networking Basics Quiz Answers
Module 02 Challenge: The Network Layer Quiz Answers
Module 03 Challenge: The Five-Layer Network Model Quiz Answers
Module 04 Challenge: Networking Services Quiz Answers
Module 05 Challenge: Limitations of the Internet Quiz Answers
Module 06 Challenge: Troubleshooting and the Future of Networking Quiz Answers