Telecommunications for Business Test Bank
Course Introduction
This course provides an in-depth overview of telecommunications principles and their practical application within modern business environments. Students will explore the technical foundations of telecommunications systems including data, voice, and video transmission as well as network architecture, hardware, and protocols commonly used in enterprise contexts. The course examines how organizations leverage telecommunication technologies to improve communication, enable remote collaboration, and support business operations securely and efficiently. Key topics include network security, cloud-based communication services, regulatory and ethical considerations, and the impact of emerging trends such as 5G and the Internet of Things (IoT) on business strategies.
Recommended Textbook
Data Communications and Computer Networks A Business Users Approach 7th Edition by Curt
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Page 2
Chapter 1: Introduction to Computer Networks and Data Communications
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Sample Questions
Q1) The merging together of two or more businesses or technologies is termed A)convergence
B)inversion
C)manipulation
D)commercilization
Answer: A
Q2) Explain what is meant by personal area network-to-workstation connections.
Answer: The personal area network was created in the late 1990s and is one of the newer forms of computer networks. Using wireless transmissions with devices such as personal digital assistants (PDAs), laptop computers, and portable music players, an individual can transfer voice, data, and music from handheld devices to other devices such as microcomputer workstations. Likewise, a user can download data from a workstation to one of these portable devices. For example, a user may use a PDA to record notes during a meeting. Once the meeting is over, the user can transmit the notes over a wireless connection from the PDA to his or her workstation. The workstation then runs a word processor to clean up the notes, and the formatted notes are uploaded to a local area network for corporate dissemination.
Q3) ____________________ are sets of rules used by communication devices.
Answer: Protocols
Page 3
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Chapter 2: Fundamentals of Data and Signals
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Q1) Telephones, AM radio, FM radio, broadcast television, and cable television are the most common examples of analog data-to-digital signal conversion.
A)True
B)False
Answer: False
Q2) Quantization error, or ____________________, causes the regenerated analog data to differ from the original analog data.
Answer: quantization noise
Q3) When a signal is amplified by an amplifier, the signal gains in ____.
A)decibels
B)hertz
C)bytes
D)watts
Answer: A
Q4) A problem inherent with delta modulation is that if the analog waveform rises or drops too quickly, the codec may not be able to keep up with the change, and ____________________ results.
Answer: slope overload noise
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4
Chapter 3: Conducted and Wireless Media
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Sample Questions
Q1) ____ systems are good at sending low-speed signals over short to medium distances.
A)Microwave
B)Satellite
C)WiFi
D)ZigBee
Answer: D
Q2) The transmission time from when a signal first leaves a satellite and then arrives at a ground station is called ____.
A)propagation delay
B)downlink
C)uplink
D)upload
Answer: A
Q3) At the end of the twentieth century, approximately 105 MEO satellites were orbiting the Earth.
A)True
B)False
Answer: False
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Page 5
Chapter 4: Making Connections
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Sample Questions
Q1) USB is an example of a full-duplex connection.
A)True
B)False
Q2) In modem interfacing terminology, the computer (or terminal) end of an interface is referred to as ____.
A)data communicating equipment (DCE)
B)data terminating equipment (DTE)
C)data transmitting equipment (DTE)
D)data receiving equipment (DRE)
Q3) What are the standards that conform the EIA-232F interface standard?
Q4) ____________________ is a digital interface that uses a standardized connector (plug) for all serial and parallel type devices.
Q5) ____________________ polling is the polling method in which the mainframe computer (primary) polls each terminal (secondary), one at a time, in round-robin fashion.
Q6) ____________________ is an interface standard for connecting a computer or terminal (or DTE) to a voice-grade modem (or DCE) for use on analog public telecommunications systems.
Q7) What are the advantages and disadvantages of an asynchronous connection?
Page 6
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Chapter 5: Making Connections Efficient: Multiplexing and Compression
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Sample Questions
Q1) The inability of a single fiber-optic line to meet users' needs is called
Q2) ____ division multiplexing is a good choice for connecting a number of lower-speed devices that do not transmit data on a continuous basis to a remote computer system.
A)Statistical time
B)Time
C)Discrete tone
D)Frequency
Q3) Multiplexing is a technique typically performed at the network access layer of the TCP/IP protocol suite.
A)True
B)False
Q4) ____ is designed for short-distance connections and has only a few lambdas, with a greater space between lambdas.
A)Dense wavelength division multiplexing (DWDM)
B)Fixed wavelength division multiplexing (FWDM)
C)Coarse wavelength division multiplexing (CWDM)
D)Inverse wavelength division multiplexing (IWDM)
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Chapter 6: Errors, Error Detection, and Error Control
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Sample Questions
Q1) Typically, impulse noise is a(n) ____ burst of energy.
A)digital
B)analog
C)binary
D)logical
Q2) ____ is not necessarily a form of error, but can indirectly lead to an increase in errors affecting the transmitted signal.
A)Impulse noise
B)Crosstalk
C)Attenuation
D)White noise
Q3) Simple parity can detect only an even number of erroneous bits per character.
A)True
B)False
Q4) If a receiver correctly receives packets 2, 3, and 4, it will respond with a(an) ____ .
A)ACK 3
B)ACK 4
C)ACK 5
D)NAK
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Chapter 7: Local Area Networks: Part I
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Sample Questions
Q1) IEEE created the 100-Mbps Ethernet 802.3u protocol also called ____ Ethernet.
A)Fast
B)Gigabit
C)Terabit
D)FDDI
Q2) A(n) ____________________ is a logical subgroup within a local area network that is created via switches and software rather than by manually moving wiring from one network device to another.
Q3) The ____ is used to connect local area networks to wide area networks.
A)hub
B)repeater
C)router
D)bridge
Q4) The most popular configuration for a local area network is the ____ topology.
A)ring
B)star-wired bus
C)bus
D)tree
Q5) In IEEE 802.3 standard for CSMA/CD, frames shorter than 64 bytes are considered ____________________, or frame fragments.
Page 9
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Chapter 8: Local Area Networks: Part II
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Sample Questions
Q1) A modern operating system must provide various levels of operating system ____, including directory and file security, memory security, and resource security.
A)size
B)memory
C)security
D)space
Q2) What are some of the more common RAID techniques?
Q3) Wireless local area networks are typically found in seven basic configurations.
A)True
B)False
Q4) Windows ____, released in the year 2000, was the next generation of the Windows NT operating system and represented a significant improvement over the earlier versions of NT.
A)Me
B)XP
C)Server 2000
D)Server 2000N
Q5) The wireless LAN standards call a single-cell wireless LAN a(n)
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Chapter 9: Introduction to Metropolitan Area Networks and Wide
Area Networks
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Sample Questions
Q1) When all the routing information is in one place, it is difficult to make updates to the routing information.
A)True
B)False
Q2) With ____ routing, routing tables are created once, typically when the network is installed, and then never updated again.
A)fixed
B)adaptive
C)changing
D)modifying
Q3) A feature that is fairly common in ____ is the ability of a user to dynamically allocate more bandwidth on demand.
A)PANs
B)LANs
C)MANs
D)WANs
Q4) Wide area networks carry both data and voice.
A)True
B)False
11
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Chapter 10: The Internet
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Sample Questions
Q1) The UDP header contains only four fields-Source Port, Destination Port, Length, and Checksum.
A)True
B)False
Q2) HTML pages are simple, static text documents that browsers read, interpret, and display on the screen.
A)True B)False
Q3) If you are given the IPv4 address 1000 0001 1000 1101 0000 1100 1100 1111, what is that address in dotted decimal notation?
A)129.141.12.207
B)65.77.12.111
C)2.4.2.6
D)65.77.8.110
Q4) The most popular protocol that handles dynamic assignment of IP addresses is
Q5) A(n) ____________________ is a popular software program used to create and manage Internet mailing lists.
Q6) How does a TCP make a network more reliable?
Page 12
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Chapter 11: Voice and Data Delivery Networks
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Sample Questions
Q1) An asymmetric service is useful for an Internet connection in which the bulk of the traffic comes down from the Internet to the workstation.
A)True
B)False
Q2) A ____ service is an all-digital connection that can transfer either voice or data at speeds up to 1.544 Mbps.
A)T-1
B)T-2
C)T-3
D)T-4
Q3) ________________________________________ is a relatively new field that combines more traditional voice networks with modern computer networks.
Q4) A real-time interactive application is one of the most demanding with respect to data transmission rate and network throughput.
A)True
B)False
Q5) ____________________ lines and tie lines are leased telephone lines that require no dialing.
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Page 13
Chapter 12: Network Security
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Sample Questions
Q1) A proxy server sits inside a company's corporate network.
A)True
B)False
Q2) If e-mail messages have a return address of someone other than the person actually sending the e-mail, then the sender is ____.
A)e-mail bombing
B)spoofing
C)smurfing
D)firewalling
Q3) A(n) ____________________ is a condition in which the Internet ping program is used to send a flood of packets to a server to make the server inoperable.
Q4) A(n) ____ is the computer program that converts plaintext into an enciphered form.
A)worm
B)Trojan horse
C)firewall
D)encryption algorithm
Q5) What are some of the standard rules for creating or changing a password?
Q6) How does phishing work?
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Chapter 13: Network Design and Management
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Sample Questions
Q1) Four statistics, or measures, that are useful in evaluating networks are mean time between failures, mean time to repair, ____, and reliability.
A)payback
B)integrity
C)availability
D)ROI
Q2) Mention some of the major goals every company has.
Q3) Collecting baseline information on ____ involves listing the types of operational protocols used throughout the system.
A)system users
B)operational protocols
C)network application
D)system nodes
Q4) The term "feasible" has several meanings when it's applied to computer-based projects.
A)True
B)False
Q5) A managed element has management software, called a(n) ____________________, running in it.
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