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NTA Review B Questions and Answers Graded A+
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NTA Review B Questions and Answers Graded A+ Question: What is the primary function of a router in a network? Answer: A router directs data packets between different networks and ensures that they reach their destination by determining the best path. Question: What is the purpose of a s...

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  • August 16, 2024
  • 10
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • nta review b questions and answers graded a

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NTA Review B Questions and Answers
Graded A+
Question: What is the primary function of a router in a network?


Answer: ✔✔ A router directs data packets between different networks and ensures that they

reach their destination by determining the best path.




Question: What is the purpose of a subnet mask in IP networking?


Answer: ✔✔ A subnet mask divides an IP address into network and host portions, helping to

determine which addresses are part of the same subnet.




Question: How does a switch differ from a hub in network operations?


Answer: ✔✔ A switch intelligently forwards data only to the specific device that needs it, while

a hub broadcasts data to all connected devices.




Question: What is the role of DNS in a network?


Answer: ✔✔ DNS (Domain Name System) translates human-readable domain names into IP

addresses that computers use to identify each other on the network.




1

, Question: What does the acronym DHCP stand for, and what is its function?


Answer: ✔✔ DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses

and other network configuration parameters to devices on a network.




Question: What is a VLAN, and why is it used in networking?


Answer: ✔✔ A VLAN (Virtual Local Area Network) segments a physical network into multiple

logical networks to improve performance, security, and management.




Question: What is the difference between TCP and UDP?


Answer: ✔✔ TCP (Transmission Control Protocol) provides reliable, connection-oriented

communication with error checking, while UDP (User Datagram Protocol) offers faster,

connectionless communication with no guarantee of delivery.




Question: What is the purpose of NAT in a network?


Answer: ✔✔ NAT (Network Address Translation) allows multiple devices on a private network

to share a single public IP address for accessing external networks, such as the internet.




Question: What does a firewall do in a network?




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