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Duplicate of PIT-B Unit #4 Test Review Flashcards | StudBud
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Duplicate of PIT-B Unit #4 Test Review
Duplicate of PIT-B Unit #4 Test Review
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Telecommunication & Network Infrastructure
Flashcards
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Questions
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Answers
1
Which of the following services are provided by satellite communication? (3 Correct )
data communication
broadcasting
wired network
telecommunication
2
The information or data to be communicated
communication channel
protocol
receiver
message
3
To deliver consistent and reliable performance
manageability
availability
abatement
scalability
4
Reduced costs due to fewer IT employees & minimized risk of outages & downtime
are benefits
of IT infrastructure Mgmt.
False
True
5
Savings, data security w/ encryption, scalability, collaboration, & 24/7 availability
are advantages
of cloud computing.
False
True
6
Provides error-free, reliable, and efficient data transfer on a network through hardware addressing and switching.
physical layer
datalink layer
presentation layer
application layer
7
Which of the following options describe a mobile network? (3 correct answers)
is a wireless communication channel
is a wired communication channel
is spread out around the world
is a local area network
8
Which of the following are the results of the globalization of the telecom industry? (3 correct answers)
an increase in competition
the worldwide availability of telecom services
a focus on a specific geographic market
an increase in the customer base of telecom companies
9
Which telecommunication satellite system accepts signals from an orbiting satellite?
receiver
Earth station antenna
transmitter
tracking subsystem
10
To add new users and network hardware to preexisting installations in the future.
availability
abatement
scalability
manageability
11
Which of the following
best
describes cloud computing? (3 correct answers)
It provides services including building customer relationships.
It is a technology that offers services through the Internet.
It provides services including database and storage servers.
It provides services including infrastructure.
12
Which telecommunication satellite system sends signals to an orbiting satellite?
transmitter
receiver
tracking subsystem
Earth station antenna
13
Television and radio broadcasting use a two-way satellite communication link.
False
True
14
A device that decodes the signal that has traveled through the channel
communication channel
transmitter
receiver
message
15
Dependence on the Internet, less control, risk of hacking & privacy intrusion
are advantages
of cloud computing.
True
False
16
Which telecommunication satellite hardware
sends signals to and receives signals from
an orbiting satellite?
Earth station antenna
tracking subsystem
receiver
transmitter
17
Which two of the following are communication links that provide services between the satellite and the Earth station?
Cellular radio communiation link
multiple satellite communication link
two-way satellite communication link
one-way satellite communication link
18
Protocols enable network services to be provided to users through interaction, like sending and receiving email.
datalink layer
application layer
presentation layer
physical layer
19
Why is network infrastructure security important? (3 correct answers)
It regularly updates security applications on the network components.
It protects sensitive data from unauthorized access.
It increases traffic on the network.
It prevents cyber attacks and damage from hackers.
20
Which of the following statements are
true
of IT infrastructure management?(2 correct answers)
Monitors and maintains processes, policies, data, and human resources.
It is the process of buying new infrastructure.
It is essential to ensuring the smooth functioning of key IT services.
It is used for conducting an audit of an organization's IT Infrastructure.
21
A protocol is a set of rules that determines how data will be transmitted between devices.
True
False
22
Which of the following is a type of communication channel?
a hardware device
a set of rules
radio waves or satellites
software or an app
23
Your cell phone entering a blackspot region could be a reason for your cell phone dropping your call.
False
True
24
Which of the following methods is used to physically divide a network into smaller networks?
network structuring
network hardening
network segmentation
network segregation
25
Which telecommunication satellite system locates and monitors satellites to establish the connection?
Earth station antenna
transmitter
receiver
tracking subsystem
26
A device that converts the message signal produced by the source into a form suitable for transmission.
message
transmitter
communication channel
receiver
27
A medium through which a signal travels to reach its destination
receiver
communication channel
message
transmitter
28
Transmits the information through a physical medium
presentation layer
datalink layer
application layer
physical layer
29
Why would an organization need to think about network planning?(3 possible answers)
to minimize network costs
to incorporate new technology
to communicate within the organization
to find errors in the network
30
To make maintenance and support of the network simple and easy
scalability
manageability
abatement
availability
31
A set of rules that detemines how data is transmitted between different devices over a network
message
protocol
communication channel
receiver
32
A receiver, message, and transmitter are components of a telecommunication system.
True
False
33
Translates the data from one format to another
application layer
datalink layer
physical layer
presentation layer