Telecommunications for Business
Mock Exam
Course Introduction
Telecommunications for Business explores the fundamental concepts and technologies that enable efficient communication within and between organizations. This course examines the principles of voice, data, and multimedia transmission, focusing on network infrastructure, protocols, and security. Students will analyze how telecommunications systems support business operations, enhance productivity, and drive innovation. Topics include telephony, wireless and wired networks, internet services, unified communications, and the impact of emerging technologies such as 5G and the Internet of Things (IoT) on business strategies. By the end of the course, students will understand how to evaluate, implement, and manage telecommunications solutions to address organizational needs and gain competitive advantages.
Recommended Textbook
Data Communications and Computer Networks A Business Users Approach 8th Edition by Curt
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13 Chapters
1235 Verified Questions
1235 Flashcards
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Page 2
Chapter 1: Introduction to Computer Networks and Data Communications
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76 Verified Questions
76 Flashcards
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Sample Questions
Q1) Connecting two wide area networks requires devices such as high-speed ____.
A) hubs
B) routers
C) bridges
D) reflectors
Answer: B
Q2) The ____________________ layer of the OSI model is responsible for taking data from the network layer and transforming it into a cohesive unit called a frame. Answer: data link
Q3) The Internet is not a single network but a collection of thousands of networks.
A)True
B)False
Answer: True
Q4) ____ is the transmission of multiple signals on one medium.
A) Multiplexing
B) Codec
C) Modem
D) Package
Answer: A
Page 3
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Chapter 2: Fundamentals of Data and Signals
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Sample Questions
Q1) A(n)____________________ converts the analog data to a digital signal by tracking the analog waveform and taking "snapshots" of the analog data at fixed intervals.
Answer: codec
Q2) The lowest note possible on the piano is ____ Hz,and the highest note possible is 4200 Hz.
A) 30
B) 80
C) 300
D) 450
Answer: A
Q3) The ASCII character set exists in a few different forms,including a ____ version that allows for 128 possible combinations of textual symbols.
A) 3-bit
B) 5-bit
C) 6-bit
D) 7-bit
Answer: D
Q4) ____________________ is the opposite of attenuation.
Answer: Amplification
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Chapter 3: Conducted and Wireless Media
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103 Verified Questions
103 Flashcards
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Sample Questions
Q1) ZigBee is a form of wireless technology used within buildings.
A)True
B)False
Answer: True
Q2) At the end of the twentieth century,approximately 105 MEO satellites were orbiting the Earth.
A)True
B)False
Answer: False
Q3) ____ transmission systems are similar to terrestrial microwave systems except that the signal travels from a ground station on Earth to a satellite and back to another ground station on Earth.
A) Satellite microwave
B) Cellular
C) Downlink
D) Terrestrial microwave
Answer: A
Q4) Multimode fiber-optic cable is labeled ____________________ cable. Answer: 62.5/125
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Chapter 4: Making Connections
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Sample Questions
Q1) On occasion,a company will create a protocol that,while not an official standard,becomes so popular that other companies start using it.
A)True
B)False
Q2) In modem interfacing terminology,the modem is referred to as the ____.
A) data communicating equipment (DCE)
B) data terminating equipment (DTE)
C) data transmitting equipment (DTE)
D) data receiving equipment (DRE)
Q3) Some systems,for various reasons,allow only one side or the other to transmit at one time.This type of connection is an example of a ____ connection.
A) full-duplex
B) half-duplex
C) single-duplex
D) multi-duplex
Q4) The Thunderbolt interface is an older interface designed for mainframe computers.
A)True
B)False
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Chapter 5: Making Connections Efficient: Multiplexing and Compression
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Sample Questions
Q1) ____,which is an abbreviation for MPEG (Moving Picture Experts Group)Audio Layer-3,is a common form of audio compression.
A) MPEG
B) GIF
C) MP3
D) JPEG
Q2) Multiplexing is a technique typically performed at the network access layer of the TCP/IP protocol suite.
A)True
B)False
Q3) ____ 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
Q4) Audio engineers compress music through techniques called perceptual noise shaping,or ____________________.
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Chapter 6: Errors, Error Detection, and Error Control
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Sample Questions
Q1) How does frame relay control errors?
Q2) ____________________ parity tries to solve the main weakness of simple parity-that all even numbers of errors are not detected.
Q3) A(n)____________________ code is a specially designed code in which special check bits have been added to data bits such that,if an error occurs during transmission,the receiver may be able to correct the error using the included check and data bits.
Q4) Because white noise is relatively continuous,it can be reduced significantly but never completely eliminated.
A)True
B)False
Q5) When a parity bit is assigned to ASCII,the Hamming distance becomes 4. A)True
B)False
Q6) If jitter becomes too great,correcting it can require the transmitting devices to speed up their transmission rates.
A)True
B)False
Q7) ____________________ is an unwanted coupling between two different signal paths.
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Chapter 7: Local Area Networks: Part I
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Sample Questions
Q1) In a shared segment network,each workstation then has a private or dedicated connection.
A)True
B)False
Q2) A ____ is a device that interconnects two segments of local area networks and acts as a filter.
A) hub
B) switch
C) router
D) satellite
Q3) 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.
Q4) The ____ sublayer contains a header,computer (physical)addresses,error-detection codes,and control information.
A) logical link control (LLC)
B) logical flow control (LFC)
C) medium access control (MAC)
D) physical link control (PLC)
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Chapter 8: Local Area Networks: Part II
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Sample Questions
Q1) Microsoft Windows 7 is an example of a desktop operating system.
A)True
B)False
Q2) Network servers only include mainframe computers.
A)True
B)False
Q3) The ____ is essentially the interface device between the wireless user device and the wired local area network.
A) wireless server
B) wireless workstation
C) NIC
D) access point
Q4) What are the four steps for creating a good and appropriate tree design?
Q5) Every software company may create its own brand of user licenses and may name them something unique.
A)True
B)False
Q6) Even after an application starts and is being executed,the application makes use of the operating system by making service requests through a defined
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Chapter 9: Introduction to Metropolitan Area Networks and
Wide Area Networks
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Sample Questions
Q1) Some MAN topologies are based on a ring.
A)True
B)False
Q2) A ____ area network is typically confined to a single building or a couple floors within one building.
A) personal
B) local
C) metropolitan
D) wide
Q3) A ____ network application provides some guarantee that information traveling through the network will be delivered to the intended receiver in the same order in which it was transmitted.
A) connectionless
B) connection-oriented
C) virtual circuit
D) packet-switched
Q4) ____________________ states that each node takes the incoming packet and retransmits it onto every outgoing link.
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Q5) The speed at which a failover is performed is the ____________________.
Chapter 10: The Internet
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Sample Questions
Q1) The ____________________ portion of the URL specifies a particular server at a particular site that contains the requested item.
Q2) ____ is a common application layer protocols that servers and the Internet use to deliver streaming audio and video data to a user's browser.
A) Secure Shell (SSH)
B) Transport Control Protocol (TCP)
C) Real-Time Protocol (RTP)
D) Voice over IP (VoIP)
Q3) Home and small business local area networks often use NAT to conserve IP addresses.
A)True
B)False
Q4) During the late 1960s,a branch of the U.S.government titled the ____ created one of the country's first wide area packet-switched networks.
A) Department of Defense
B) IEEE
C) Advanced Research Projects Agency (ARPA)
D) IETF
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Chapter 11: Voice and Data Delivery Networks
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Sample Questions
Q1) The Telecommunications Act of 1996 mandated that the existing local telephone companies,now called ____,must give CLECs access to their telephone lines.
A) private Branch Exchange (PBX)
B) Centrex (central office exchange service)
C) incumbent local exchange carriers (ILECs)
D) interexchange carriers (IECs)
Q2) Quarter-T-1 and half-T-1 lines are called fractional T-1 services.
A)True
B)False
Q3) What are the advantages of frame relay?
Q4) ____ is a trademarked version of DSL with speeds that are a little slower than typical ADSL speeds.
A) Asymmetric digital subscriber line (ADSL)
B) DSL Lite
C) DirtCheap DSL (DDSL)
D) High bit-rate DSL (HDSL)
Q5) A trunk has a unique telephone number associated with it.
A)True
B)False
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Chapter 12: Network Security
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Sample Questions
Q1) Expensive computer systems should always be placed in the basements of buildings.
A)True
B)False
Q2) Auditing a computer system is often a good way to deter crime.
A)True
B)False
Q3) In computer terminology,a(n)____________________ is a trap that is set by network personnel in order to detect unauthorized use of a network resource.
Q4) One of the primary functions of Kerberos is to authenticate users.
A)True
B)False
Q5) Pings are used most commonly by Unix-based systems.
A)True
B)False
Q6) The physical protection of a computer system or a computer network consists of protecting the equipment from physical damage.
A)True
B)False
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Chapter 13: Network Design and Management
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Sample Questions
Q1) ____ benefits are ones for which assigning a dollar amount is difficult; they include customer goodwill and employee morale.
A) Tangible
B) Concrete
C) Real
D) Intangible
Q2) In a wide area connectivity map,external sites,such as suppliers or external agents,are denoted by circles containing the letter ____.
A) E
B) F
C) M
D) X
Q3) ____ analysis is a common financial analysis technique that involves determining a proposed system's costs and benefits.
A) Payback
B) Time
C) Operational
D) Technical
Q4) Provide an example of capacity planning using linear projection.
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