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1. The TCP/IP model has _______ layers.
a. five
b. six
c. seven
d. eight
a. five
2. The _______ layer of the TCP/IP protocol suite provides services for end users.
a. data-link
b. transport
c. application
d. physical
c. application
3. The _______ layer of the TCP/IP protocol suite transmits a bit stream over a physical medium.
a. physical
b. data-link
c. network
d. transport
a. physical
4. The _______ layer of the TCP/IP protocol suite is responsible for node-to-node delivery of a frame between two adjacent nodes.
a. transport
b. network
c. data-link
d. session
c. data-link
5. The _______ layer of the TCP/IP protocol suite is responsible for source-todestination delivery of the entire message.
a. transport
b. network
c. data-link
d. session
b. network
6. What is the domain name in the e-mail address kayla@nasa.gov?
a. kayla
b. kayla@nasa.gov
c. nasa.gov
d. gov
c. nasa.gov
7. Which physical topology uses a hub or switch?
a. bus
b. ring
c. star
d. bus and ring
c. star
8. IP addresses are currently _______ bits in length.
a. 4
b. 8
c. 32
d. 40
c. 32
9. _______ protocol (s) is one of the protocols in the transport layer.
a. Only TCP
b. Only UDP
c. Only SCTP
d. TCP, UDP, and SCTP
d. TCP, UDP, and SCTP
10. _______ is a protocol for file transfer.
a. FTP
b. SMTP
c. TELNET
d. HTTP
a. FTP
11. _______ is a protocol for e-mail services.
a. FTP
b. SMTP
c. TELNET
d. HTTP
b. SMTP
12. _______ is a protocol for accessing and transferring documents on the WWW.
a. FTP
b. SMTP
c. TELNET
d. HTTP
d. HTTP
13. Every computer looking to access the Internet would be known as this
a. client
b. desktop
c. hub
d. server
d. server
14. Identifies company or commercial sites
a. .org
b. .com
c. .gov
d. .edu
b. .com
15. what is indicated when the domain name has only two letters like .us, .uk, .au, .mx, or .ca
a. invalid domain
b. private domain
c. secure domain
d. country domain
d. country domain
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