COMPUTER FUNDAMENTALS

INTRODUCTION TO COMPUTERS

COMPUTER NETWORKS AND THE INTERNET

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A user enters a Web address in a browser, and a request for a file is sent to a Web server. Which of the following best describes how the file is sent back to the user?
A
The file is broken into packets and sent over a network. The packets must be reassembled by the user’s computer when they are received. If any packets are missing, the browser re-requests the missing packets.
B
The file is broken into packets and sent over a network. The user’s browser must request each packet, in order, until all packets are received.
C
The server attempts to connect directly to the user’s computer. If the connection is successful, the entire file is sent at once. If the connection is unsuccessful, an error message is sent to the user.
D
The server repeatedly attempts to connect directly to the user’s computer until a connection is made. Once the connection is made, the entire file is sent.
Explanation: 

Detailed explanation-1: -A user enters a Web address in a browser, and a request for a file is sent to a Web server. Which of the following best describes how the file is sent back to the user? The file is broken into packets and sent over a network.

Detailed explanation-2: -IPv6 utilizes 128-bit Internet addresses. Therefore, it can support 2^128 Internet addresses-340, 282, 366, 920, 938, 463, 463, 374, 607, 431, 768, 211, 456 of them to be exact. The number of IPv6 addresses is 1028 times larger than the number of IPv4 addresses.

Detailed explanation-3: -Which of the following best explains the relationship between the Internet and the World Wide Web? The Internet is a network of interconnected networks, and the World Wide Web is a system of linked pages, programs, and files that are accessed via the Internet.

Detailed explanation-4: -Which of the following statements best explains the ability of the network to provide fault tolerance? A The network is considered fault-tolerant because there are redundant paths between each pair of devices.

There is 1 question to complete.