Saylor Academy | 2024 Questions &
Answers | 100% Correct | Verified
___ messages are sent from one computer to the set of computers in its logical group. - ✔✔Multicast
Which of the following is a network that spans multiple LANs but is smaller than a MAN?
a. CAN
b. PAN
c. TAN
d. WAN - ✔✔a. CAN
If the physical layer delivers 1000 bits to the receiver, but the receiver only receives 900 bits, how could
you describe the behavior of the physical layer?
a. Reliable
b. Error-free
c. Unreliable
d. Compressed - ✔✔c. Unreliable
_____ network topologies are the most expensive to implement, since they use the most network cable.
- ✔✔Mesh
How many direct links are required to support ten nodes in a fully-connected network topology? -
✔✔n(n-1)/2
(10)((10)-1)/2
10(9)/2
=45
, Which of the following network topologies is relatively cheap to implement, since it uses a single wire to
connect every computer in the network? - ✔✔Bus
What is the RFC? - ✔✔A database of Internet service providers
Which kind of protocol would you use to stream live programs when you do not want to miss any future
or present events, but you do not care as much about missing past packets? - ✔✔UDP
The protocols for email and web file access are described in which layer of the Internet protocol?
a. Application
b. Network
c. Transport
d. Session - ✔✔a. Application
Which of the following OSI layers is responsible for routing IP packets?
a. Network
b. Presentation
c. Session
d. Transport - ✔✔a. Network
Review this TCP packet. Which of the following sections would be different if you were instead looking at
a UDP packet? - ✔✔
Which of the following layers is a combination of the Application, Presentation, and Session layer in the
TCP/IP reference model? - ✔✔Application Layer
Which of the following layers is unique to the TCP/IP reference model? - ✔✔a. Application <- I think (?)
[not: b. Internet]
c. Transport
d. VoIP