Unit 2: Internet

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

Consider the following Internet functions. -Checks if a connected node has knowledge of the destination IP. -If the connected node has knowledge of the destination IP, sends the packet to node. -If the connected node has no knowledge of the destination IP, find other path. Which of the following is the Internet device that handles the above-mentioned actions?

Router

Which of the following provides the fastest Internet connection?

Fiber optic cable (light)

TCP

Reliable and error-checked protocol for non-streaming

The Internet was designed to handle communication in such a way that if singular locations or entire regions are destroyed by natural disasters or war, the Internet can continue to communicate. Which of the following are correct statements about Internet connectivity? 1. The Internet is a large network of interconnected smaller networks. There is not one singular network that controls the communications for all the other networks. 2. Every device on the Internet has a unique IP (Internet Protocol) address. 3. Routers find paths between Internet devices and reroute traffic if any device or an entire large network on the Internet is no longer functional.

1,2, and 3

You must decide between using a wireless connection or Ethernet cable to your home router. Which of the following is a reason to NOT select WIFI?

2. Ethernet cable is more reliable than WIFI. 3. WIFI can have security issues.

If websites exist on the Internet at a specific IP addresses, like 229.150.17.45, how does some network request to a Domain Name, like www.AAAPlumbing.com, manage to find the correct website on the Internet? Who or what handles the conversion from a name to a number?

A DNS (Domain Name System) server handles the conversions.

Server

A computer that provides functionality for others

Client

A computer that uses the resources of another

Modem

A device that converts data for transmission

When two students sit close to each other they are surprised by the appearance of a website. Both students access the exact same webpage of the same web address, at the same time, and there are noticeable differences in appearance. Which of the following might account for these differences?

All of the above

Bit rate

Amount of actual data transmitted in unit of time

Latency

Amount of delay/time it takes to transmit data

Router

Device that moves data packets between computers

ARPANET

First network to implement the TCP/IP protocols

Bandwidth

Maximum possible data transmitted in unit of time

IPv6

More than enough possible addresses for the future

IPv4

Not enough now and looks 255.255.255.255

MAC Address

Permanent unique identifier assigned to hardware

DNS

Phone book between addresses and domain names

Fault Tolerant

Property of continuing to work even with errors

IP

Protocol used to move packets to internet addresses

ISP

Provides service for accessing/using the Internet

UDP

Real-time-like protocol used for streaming with errors

Name Server

Server with domain names and their addresses

Packets

Small piece of data with extra helpful information

IP Address

Temporary unique identifier assigned to hardware

Which of the following is a good analogy for the meaning of Internet bandwidth?

The number of lanes on a highway.

Large files are transmitted on the Internet from source computer to destination computer. The files are not sent whole, but in smaller pieces, called packets, by the router. What is true about the paths of the packets?

The router selects a path and switches to a different path if the link is broken. The router may also switch to another path if the delay is too long.

A person at a home computer tries to browse several new locations on the Web. Initially, websites appear, like Google search and other commonly used websites, but there are difficulties reaching many other web sites. What may explain this problem?

This person may have a bad router that incorrectly tries to find connection and does not have an accurate table of its connections on the Internet.

A router transmits

packets on the Internet


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