Practice Final – Questions With Correct Solutions
An advantage of optical fiber over traditional copper wiring is: Correct
Answer - Less bulk
Which of the following problems would the OSI Model solve? Correct
Answer - It would allow a Mac and a PC to be used on the same network.
Which network topology uses a central hub or controller? Correct Answer -
Star
Crosstalk and attenuation are NOT a problem in which of the following media?
Correct Answer - Fiber optic cable
How does the use of a router differ from a bridge in telecommunication?
Correct Answer - A router is a communication device that is used to
connect two different networks, while a bridge is networking device that
divides the network into different segments to manage the amount of traffic.
The presentation layer of the OSI model translates data into an acceptable
format usable by which layer? Correct Answer - The application layer
The OSI Model is used to: Correct Answer - describe how
communications happen across a network
When internet service providers use fiber optic cables, which cable type are
they most likely to use for home networks? Correct Answer - Plastic
optical cable
Why are addresses important in networking? Correct Answer - They are
used to identify both the network to which the device is connected to as well
as the device itself.
Science and engineering orbital data are made accessible to the general public
by use of the _____ Correct Answer - Internet-to-orbit
,A computer can be a web server if it: Correct Answer - services web page
requests by clients connecting to it
Which protocol downloads a copy of an email and deletes the original email
from the server? Correct Answer - POP3
In a _____ topology network, all the devices are connected back to a central hub
or switch. Correct Answer - Star
The organization that currently regulates and manages the Internet is _____.
Correct Answer - ICANN
_____ was the reason why our emails and our web browsing experiences are
more flexible with a wide variety of functions. Correct Answer - MIME
_____ is a simplified setup procedure available on some wireless routers and
access points. Correct Answer - WPS
Where does the cloud concept originate? Correct Answer - Network
diagram
UDP is what type of protocol? Correct Answer - Connectionless
Which internet protocol is responsible for re transmitting lost or erroneous
data packets? Correct Answer - TCP
Which of the following identifies the protocol or protocols available to the
session layer for standardizing communications on a network? Correct
Answer - TCP/IP
In WANs, what advantage does the ring topology have over the bus topology?
Correct Answer - Data transmission is multidirectional
What main use does Telnet have in modern IT? Correct Answer - Telnet
is often used for embedded devices.
The type of fiber used typically for long distance runs is: Correct Answer -
Single-mode
, Which layer is the network layer in the OSI 7 layer model Correct Answer -
3
Which of these is the most common cable type to connect a home network to a
cable modem using an internet service provider? Correct Answer -
Coaxial
Which of the following statements is true? Correct Answer - MAC and IP
addresses need to work in parallel for effective communication.
The Frame Check Sequence (FCS) within an Ethernet frame serves to _____
Correct Answer - Detect corrupted data
When a user tries to access a web page, what does the system do first?
Correct Answer - Searches the domain name in DNS.
The software or hardware used to connect two different networks is known as
_____ Correct Answer - Gateway
Which of the following is true about half-duplex mode? Correct Answer -
Data is transmitted in both directions but not at the same time.
According to network security engineers and other experts in the security
field, the likelihood of eliminating all security threats is _____. Correct
Answer - not likely
Frequency Division Multiplexing is not used in _____. Correct Answer -
Air band radio
Why is the role of RTCP important in VoIP communications? Correct Answer
- It allows adjustments to be made to fine-tune transmissions.
What type of standards are built by the officials and network professionals in
organizations? Correct Answer - Formal standards
What organization sets the rules as to how credit card data is handled?
Correct Answer - PCI