Exam 1 - Intro Information Technology
with complete questions and full
correct answers
Which layer provides flow control and ensures data reliability from source to
destination?
a. network
b. transport
c. application
d. data link - Correct Answer: b. transport
In a mesh topology network, how many connections are needed for a one hundred node
network?
a. 4,950
b. 3,225
c. 1.435
d. 1,000 - Correct Answer: a. 4,950
One task of the ____ layer in a LAN is to handle error detection using a CRC.
a. transport
b. data link
c. application
d. session - Correct Answer: b. data link
Which layer can route data on different paths by creating virtual circuits?
a. data link
b. transport
c. network
d. application - Correct Answer: c. network
The smallest T-carrier service is T-1.
True/False - Correct Answer: True
The ____ topology consists of running cable from one PC or file server to the next, like
links in a chain.
a. mesh
b. bus
, c. star
d. tree - Correct Answer: b. bus
A VPN, is another type of network, like LAN or WAN, and means Virtual Personal
Network and is mostly used for short range communications.
True/False - Correct Answer: False
The term ____ refers to wrapping the information in one layer inside the information
within the next layer.
a. firewall
b. encapsulate
c. fault-tolerance
d. full-duplex - Correct Answer: b. encapsulate
The ____ topology is a continuous path for data with no logical beginning or ending
point.
a. mesh
b. ring
c. tree
d. bus - Correct Answer: b. ring
The ____ field in an Ethernet frame synchronizes frame transmission and consists of an
alternating pattern of zeroes and ones.
a. frame check sequence (FCS)
b. preamble
c. start of frame delimiter (SFD)
d. destination address - Correct Answer: b. preamble
____ is a process that scrambles the data so that it cannot be read if intercepted by
unauthorized users.
a. transport
b. encryption
c. analog
d. beaconing - Correct Answer: b. encryption
The Ethernet LAN transmission method can detect a collision has occurred by which of
the following?
a. broadcast storms
b. half-duplex
c. full-duplex
with complete questions and full
correct answers
Which layer provides flow control and ensures data reliability from source to
destination?
a. network
b. transport
c. application
d. data link - Correct Answer: b. transport
In a mesh topology network, how many connections are needed for a one hundred node
network?
a. 4,950
b. 3,225
c. 1.435
d. 1,000 - Correct Answer: a. 4,950
One task of the ____ layer in a LAN is to handle error detection using a CRC.
a. transport
b. data link
c. application
d. session - Correct Answer: b. data link
Which layer can route data on different paths by creating virtual circuits?
a. data link
b. transport
c. network
d. application - Correct Answer: c. network
The smallest T-carrier service is T-1.
True/False - Correct Answer: True
The ____ topology consists of running cable from one PC or file server to the next, like
links in a chain.
a. mesh
b. bus
, c. star
d. tree - Correct Answer: b. bus
A VPN, is another type of network, like LAN or WAN, and means Virtual Personal
Network and is mostly used for short range communications.
True/False - Correct Answer: False
The term ____ refers to wrapping the information in one layer inside the information
within the next layer.
a. firewall
b. encapsulate
c. fault-tolerance
d. full-duplex - Correct Answer: b. encapsulate
The ____ topology is a continuous path for data with no logical beginning or ending
point.
a. mesh
b. ring
c. tree
d. bus - Correct Answer: b. ring
The ____ field in an Ethernet frame synchronizes frame transmission and consists of an
alternating pattern of zeroes and ones.
a. frame check sequence (FCS)
b. preamble
c. start of frame delimiter (SFD)
d. destination address - Correct Answer: b. preamble
____ is a process that scrambles the data so that it cannot be read if intercepted by
unauthorized users.
a. transport
b. encryption
c. analog
d. beaconing - Correct Answer: b. encryption
The Ethernet LAN transmission method can detect a collision has occurred by which of
the following?
a. broadcast storms
b. half-duplex
c. full-duplex
