Telecommunications for Business Pre-Test Questions

Course Introduction

This course explores the foundational concepts and practical applications of telecommunications within modern business environments. Students will gain an understanding of the technologies and infrastructures that enable communication networks, including voice, data, and multimedia transmission. The curriculum covers important topics such as network types, telecommunications hardware and software, regulatory issues, security concerns, and evolving trends like VoIP and cloud-based communication systems. Emphasis is placed on how businesses leverage telecommunications for operational efficiency, strategic decision-making, and maintaining competitive advantage.

Recommended Textbook

Data Communications and Computer Networks A Business Users Approach 7th Edition by Curt

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13 Chapters

1238 Verified Questions

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Page 2

Chapter 1: Introduction to Computer Networks and Data Communications

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Sample Questions

Q1) The application layer of the OSI model is responsible for token management.

A)True

B)False

Answer: False

Q2) The network layer of the OSI model is an end-to-end layer.

A)True

B)False

Answer: False

Q3) Data is information that has been translated into a form that is more conducive to storage, transmission, and calculation.

A)True

B)False

Answer: True

Q4) The Internet "talks" only ____, so users must use software that supports this protocol.

A)IPX/SPX

B)DSL

C)TCP/IP

D)FTP

Answer: C

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Chapter 2: Fundamentals of Data and Signals

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Sample Questions

Q1) ____________________ is the opposite of attenuation.

Answer: Amplification

Q2) The set of all textual characters or symbols and their corresponding binary patterns is called a(n) ____________________.

Answer: data code

Q3) Attenuation in a medium such as copper wire is a logarithmic loss and is a function of distance and the resistance within the wire.

A)True

B)False

Answer: True

Q4) The frequency range of the average human voice usually goes no lower than 300 Hz and no higher than approximately ____ Hz.

A)2200

B)2400

C)3400

D)5300

Answer: C

Q5) The ____________________, or time interval, of one cycle is called its period. Answer: length

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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) ____ twisted pair was designed to transmit 20 Mbps of data for distances up to 100 meters.

A)Category 1

B)Category 3

C)Category 4

D)Category 5

Answer: C

Q2) ____________________ twisted pair was designed to transmit 100 Mbps of data for distances up to 100 meters.

Answer: Category 5 CAT 5

Q3) ____ cable is a thin glass cable, a little thicker than a human hair, surrounded by a plastic coating.

A)Single-stranded coaxial

B)Fiber-optic

C)Braided coaxial

D)CAT 7

Answer: B

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) When using peripherals that are designed with a USB connector, it is also possible to connect one USB peripheral to another.

A)True

B)False

Q2) A(n) ____________________ connection is a special kind of data link connection used to support various types of real-time applications.

Q3) An EIA-232F interface is a full-duplex connection.

A)True

B)False

Q4) Mainframe computers use polling to send or collect data with workstations. How does polling work, and what other more recently created protocols use polling?

Q5) The technique of connecting a device to each subsequent device (instead of back to the computer) is known as ____________________.

Q6) If control simplicity is your primary goal, point-to-point connection of terminals is clearly superior to multipoint connections.

A)True

B)False

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Page 6

Chapter 5: Making Connections Efficient: Multiplexing and Compression

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Sample Questions

Q1) How does time division multiplexing work?

Q2) The inability of a single fiber-optic line to meet users' needs is called ____________________.

Q3) ____________________, transmits data only from active users and does not transmit empty time slots.

Q4) Multiplexing is a technique typically performed at the network access layer of the TCP/IP protocol suite. A)True B)False

Q5) In Stat TDM, the ____________________, provides information that the receiving multiplexor can use to detect transmission errors within the frame.

Q6) One of the more common and simpler examples of lossless compression is ____________________-length encoding.

Q7) Synchronous Optical Network (SONET) and ____________________, are powerful standards for multiplexing data streams over a single medium.

Q8) Each STS level supports a particular data rate and is supported by a physical specification called a(n) ____________________.

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Chapter 6: Errors, Error Detection, and Error Control

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Sample Questions

Q1) In a stop-and-wait error control system, a receiver may acknowledge multiple packets with a single ACK.

A)True

B)False

Q2) Typically, impulse noise is a(n) ____ burst of energy.

A)digital

B)analog

C)binary

D)logical

Q3) How does frame relay control errors?

Q4) White noise is also called thermal noise or ____ noise.

A)crosstalk

B)jitter

C)Gaussian

D)spike

Q5) If jitter becomes too great, correcting it can require the transmitting devices to speed up their transmission rates.

A)True

B)False

Q6) How does longitudinal parity work?

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Chapter 7: Local Area Networks: Part I

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Sample Questions

Q1) A(n) ____ protocol is the software that allows a workstation to place data onto a local area network.

A)error control

B)noise control

C)medium access control

D)flow control

Q2) One of the most common standards for broadband (analog) Ethernet was the ____________________ specification.

Q3) One of the more interesting applications for a dedicated segment network and a switch is creating a ____.

A)virtual LAN

B)dedicated LAN

C)shared LAN

D)local LAN

Q4) ____________________ was designed to support 100-Mbps baseband signals using two pairs of Category 5 unshielded twisted pair.

Q5) How does a star-wired bus topology work?

Q6) What are some of the application areas where a LAN can be an effective tool?

Q7) Explain the switch filtering function.

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Chapter 8: Local Area Networks: Part II

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113 Flashcards

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Sample Questions

Q1) ____ is an intelligent system that authenticates users and includes a distributed database of information about every application, user, server, and resource on a network.

A)NetWare Directory Services (NDS)

B)Active Directory

C)LDAP

D)X.509

Q2) ____________________ software is designed to scan an IP address or range of IP addresses for any type of security weakness.

Q3) A(n) ______________________________ is a large, complex program that can manage the common resources on most local area networks.

Q4) 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

Q5) What are the four steps for creating a good and appropriate tree design?

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Chapter 9: Introduction to Metropolitan Area Networks and

Wide Area Networks

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Sample Questions

Q1) A(n) ____________________ is a device that allows one or more stations to access the physical network and is a transfer point for passing information through the network.

Q2) MANs are almost exclusively ____ networks, and thus capable of supporting data rates into the tens of millions and hundreds of millions of bits per second.

A)fiber-optic

B)copper-wired

C)twisted-paired

D)coaxial-cabled

Q3) Any network is as strong as its strongest link.

A)True

B)False

Q4) ____ are advertised as networks with very low error rates and extremely high throughput.

A)PANs

B)UANs

C)GANs

D)MANs

Q5) What are the problems associated with network congestion?

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Chapter 10: The Internet

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Sample Questions

Q1) The ____________________ provides a connectionless data transfer service over heterogeneous networks by passing and routing IP datagrams.

Q2) To transfer Web pages, the Internet uses the ____.

A)Telnet

B)Hypertext Transfer Protocol (HTTP)

C)e-commerce

D)Network Address Translation (NAT)

Q3) The ____ is an Internet protocol for sending and receiving e-mail and is used to perform the transfer.

A)Address Resolution Protocol (ARP)

B)Simple Mail Transfer Protocol (SMTP)

C)File Transfer Protocol (FTP)

D)Transport Control Protocol (TCP)

Q4) Intranets use essentially the same hardware and software that is used by other network applications.

A)True

B)False

Q5) How does the Internet Protocol work?

Q6) How does NAT work?

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Chapter 11: Voice and Data Delivery Networks

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Sample Questions

Q1) When a VCC transmits user-to-network control signaling, the connection is called the _________________________.

Q2) ____________________ lines and tie lines are leased telephone lines that require no dialing.

Q3) Before ATM can transfer any data, you must first create a logical connection called a ____.

A)virtual path connection (VPC)

B)virtual channel connection (VCC)

C)network-network interface

D)network-user interface

Q4) The ____ allows the customer to exceed the committed information rate by a fixed amount for brief moments of time.

A)bit rate

B)burst rate

C)committed information rate (CIR)

D)LATA rate

Q5) After the 1984's Modified Final Judgment, the local telephone companies became known as ______________________________.

Q6) How does a 56k dial-up modem work?

Page 13

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Chapter 12: Network Security

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Sample Questions

Q1) A ____ virus is usually stored on some form of removable media. When the removable media (such as a flash drive) is connected to a new machine and is used to boot the machine, the virus moves from the media into the host system.

A)polymorphic

B)macro

C)boot sector

D)file infector

Q2) In ____, a Web user seeking to visit a particular company's Web site is unknowingly redirected to a bogus Web site that looks exactly like that company's official Web site.

A)smurfing

B)pharming

C)worming

D)e-mail bombing

Q3) A digital certificate, or simply a(n) ____________________, is an electronic document, similar to a passport, that establishes your credentials when you are performing transactions on the World Wide Web.

Q4) ____________________ define the network resources that a user or set of users can access.

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Chapter 13: Network Design and Management

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Sample Questions

Q1) One of the most popular and successful plans currently used by businesses today is the ____.

A)network cycle

B)software-network cycle

C)systems development life cycle (SDLC)

D)distributed cycle

Q2) To examine the nodes in a wide area connectivity map in more detail, an analyst can expand each individual site into a ____ area connectivity map.

A)personal

B)local

C)world

D)universal

Q3) The advantage of analytical modeling is that it is extremely difficult to create inaccurate analytical models and thus generate results that are invalid.

A)True

B)False

Q4) In a payback analysis, the ____________________ row reflects the total costs for each year times the present value of a dollar for that year.

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