FREE AZ-700 Networking Fundamentals Questions and Answers

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What is the primary purpose of a subnet in a network?

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A subnet divides a larger network into smaller segments, making it easier to manage, secure, and optimize traffic flow. Each subnet can contain devices that communicate with each other efficiently, reducing congestion and improving organization within the network.

Which layer of the OSI model is responsible for establishing end-to-end communication and data flow control between hosts?

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The Transport Layer (Layer 4 of the OSI model) is responsible for establishing connections, ensuring reliable data transfer, and flow control between hosts. It manages end-to-end communication using protocols like TCP (reliable) and UDP (unreliable).

Which of the following is NOT a private IP address range?

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8.8.8.0/24 is not a private IP range; it's part of the public IP range and is commonly used by Google as a public DNS server (8.8.8.8). Private IP ranges, per RFC 1918, are 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16.

Which network protocol is responsible for converting human-readable domain names to IP addresses?

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DNS (Domain Name System) is the protocol that translates human-readable domain names (like "example.com") into IP addresses, allowing users to access websites without needing to remember complex numerical addresses.

In a VPN connection, which protocol is commonly used to secure data during transmission?

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IPsec (Internet Protocol Security) is widely used in VPN connections to secure data by encrypting it during transmission over public networks. It ensures data integrity, authentication, and confidentiality, making it suitable for secure remote access.