AP CSP Unit 2

Which of the following statements is true:

• DNS is at the same level of abstraction as the IP layer
• The IP layer is a higher level than the TCP layer. 
• The TCP layer is independent of  the IP layer
• The TCP layer is below the DNS layer

What is the number 45 as a binary number?

• 10011111
• 00001100
• 00101101
• 10101010

What does Protocol mean?

• Security
• Rules
• Orders
• Services

This is used to find IP addresses using a URL

• IP address

• subnet mask

• default gateway

• DNS server

How many bits are in an IPV6 address?

• 32
• 64
• 128
• 256

Which of the following statements is true:

• TCP is a protocol that ensures that internet traffic is routed in the most efficient manner possible.  

• TCP takes into consideration that packets can be received in a different order.  

• The TCP protocol takes into consideration that packets can be lost. 

• TCP resends packets multiple times to ensure that they are received by the requester.  

The binary number 01000001 represents the letter "A" in ASCII, which of the following represents the letter "B"

• 01000011 
• 01000010 
• 00100001 
• 01000001 

ASCII stands for 

• American Standard Code for Internet Information
• American Scan Codes for Internet Information
• American Standard Code for Information Interchange
• American Standard Code for Internet Interchange 

The HTTP protocol: 

• Is used to break up messages into packets.  

• Is used to request and receive web pages. 

• Is used to route packets over the Internet.

• Takes into consideration that packets can be lost.

According to Vint Cerf the internet: 

• Must be based on protocols that anyone can use.

• Must be unrestricted and uncensored.

• Must be protected by Government legislation to keep connections free. 

• Must be complex to ensure it meets all the requirements for growth.