(2/19)APCS 11 WEEKS until AP EXAM

The only purpose of an IP Address is...

• to provide a unique number for identifying devices on the internet
• to help reconstruct a message that was divided into packets
• to identify the location of the company that created the internet device
• to count the number of times a packet has been requested by a router

A ISP (Internet Service Provider) will create more connection to the internet because...

• it will be cheaper for the company
• the protocols of the internet REQUIRE more connections in order to work
• more connections makes the internet service more reliable (aka fault tolerant)
• it is required by law

Digital divide means?

• The divide between what people know about the internet and the amount of access people have to the internet
• The divide between different internet companies
• The divide between different internet devices
• The divide between different internet protocols

The grey curved line below represents Music. What do the Red Dots represent?

• High Notes
• Bass Notes
• Sampling
• Analog Signal

The Grey curved line below represents Music. The Grey curved line is an example of?

• High Notes of the music
• Sampling
• Analog Signal
• Digital Signal

A byte is

• 1 or 0
• made up of 4 bits
• made up of 8 bits
• is the smallest unit of information a computer can hold

The picture below was taken by a digital camera while I was in a museum. What is true?

• Above is analog representation of a digital picture
• Above is a digital representation of an analog picture
• It could be analog or digital depending on the setting the phone camera was using.
• You can't tell unless you know the sample size.

When working with number data, Round Off errors and Overflow errors.

• Can both be eliminated in computers with proper programming development.
• Round Off errors can be eliminated but Overflow errors can not.
• Overflow errors can be eliminated but Round Off errors can not
• Neither Round off errors nor Overflow errors Can ever be totally eliminated.

_________ is a great compression algorithm for when reconstruction of the original data is important

• Lossy
• Lossless
• either
• neither, you should always create a back up in analog.

Usually, _________ is a great compression algorithm for when you want the greatest amount of compression and don't care if you need reproduce the original.

• Lossy
• Lossless
• either
• neither, you should always create a back up in analog.