AP CSP Unit 1

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 is 01010111 in hexadecimal? 

• 57
• 60
• 5A
• 55

What is Abstraction?

• The use of computers to solve problems.
• Representing 'real world' problems in a computer using variables and symbols and removing unnecessary elements
• Breaking down a large problem into smaller sub-problems.
• Identifying the steps involved in solving a problem.

Which protocol is used to transfer files from one computer to another?

• FTP
• HTML
• DNS
• HTTP

Which protocol is used to transfer files from one computer to another?

• FTP
• DNS
• HTML
• HTTP

What does Protocol mean?

• Security
• Rules
• Orders
• Services

Which of these is NOT part of the TCP header?

• Packet Number
• Sender IP Address
• Size of Packet
• Name of File

This is used to resolve host names to IP addresses

• IP address
• subnet mask
• default gateway
• DNS server

How many bits are in an IPV6 address?

• 32
• 64
• 128
• 256