computer test
When packets are routed on the Internet, the route for a particular packet is not predetermined. Instead...
Each router can pick a connection that's currently working and available
A type of computer that forwards data across a computer is called...
Router
Emily is watching an online video. The video is being sent to her laptop by a server over the internet which splits the video into packets and sends them in the order they appear in the video. Which of the following is true about how the packets will arrive at her computer?
The packets may arrive out of order
Which of the following Internet protocols is most important in reassembling packets and requesting missing packets to form complete messages?
Transmission control protocol (TCP)
How many paths need to be broken in this diagram?
3
A computer network consisting of interconnected networks, and standardized , open (nonproprietary)
Internet
An Internet service provider is a company that builds routers and wired connections...
Redundant networks are more reliable
Two devices are connected to the internet and communicating with one another. A squirrel chews through one of the wires in the network that is currently being used by the devices to communicate. The network immediately begins using a different path through the network and communication continues as normal.
Fault-Tolerance
The various protocols in use on the internet are said to operate in layers in which the protocol(s) at each layer solve one problem related to networked communication, and higher layers are built on top of, and rely on, the lower layers to do their jobs. From the list provided choose the two (2) answers that correctly describe which internet protocol relies on the other. For example: if protocol A relies on protocol B, it means that A is a higher level protocol than B, and thus protocol B must exist and work properly in order for protocol A to do its job.
HTTP and DNS
Which of the following best describes the purpose of an IP address?
IP addresses provide a unique number for identifying devices that send and receive information on the internet.
How does a computer resolve a domain name into an IP address?
It asks a DNS server for the corresponding IP address
Amazon describes their web servers like this:
It continues operating when experiencing traffic surges
Which of these is a way that the Internet Protocol contributed to internet communications
It describes how to route packets of data around the internet
John is developing an application to send urgent information...
John can use the Transmission control protocol for communication, since the TCP HAS WAYS TO RECOVER when packets are lost
Which of the following are true about routers...
a packet and routers act independently
