Enterprise Networking Practice Exam
Course Introduction
Enterprise Networking explores the principles, architectures, and technologies that underpin large-scale computer networks within organizations. The course covers the design, implementation, and management of network infrastructure to support business operations securely and efficiently. Key topics include network topologies, routing and switching, network protocols, wireless networks, virtualization, security challenges, and emerging trends such as cloud integration and software-defined networking (SDN). Through theoretical concepts and practical case studies, students will develop the skills necessary to optimize network performance, ensure high availability, and address evolving networking needs in enterprise environments.
Recommended Textbook
Business Data Communications Infrastructure Networking and Security 7th Edition by William Stallings
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Chapter 1: Introduction
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Q1) The number of computers and terminals at work in the world today is over 100 million.
A)True
B)False
Answer: True
Q2) Commonly referred to as cell relay,_________ is a culmination of advancements in both circuit switching and packet switching
A)asynchronous transfer mode
B)frame relay
C)convergence
D)MAN
Answer: A
Q3) __________ is similar to online chat because it is text-based and exchanged bidirectionally in real time.
A)Audio conferencing
B)Instant messaging
C)Presence
D)Web conferencing
Answer: B
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Chapter 2: Business Information
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Q1) ________ files contain very little formatting and do not support formatting such as boldface,italics,or underline.
Answer: Text
Q2) A ________ is the smallest single component of a digital image.
A)RGB
B)megapixel
C)pixel
D)none of the above
Answer: C
Q3) When transmitting video information,compression ratios can range as high as 100:1 with little loss of perceived quality.
A)True
B)False
Answer: True
Q4) A __________ system uses a sequence of discrete,discontinuous values or symbols to represent information.
Answer: digital
Q5) A representation of images that uses an array of pixels is called ______. Answer: raster graphics
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Chapter 3: Distributed Data Processing
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Q1) A partitioned database is by definition not a replicated database.
A)True
B)False
Answer: True
Q2) Centralized data processing typically involves terminals connected to large computers in a central data processing facility.
A)True
B)False
Answer: True
Q3) Which of the following is NOT a feature of an Intranet?
A)uses Internet based standards,such as HTML and SMTP
B)is used to connect both local and remote sites into one network
C)is used to distribute content to the general Internet
D)can be effectively managed
Answer: C
Q4) Responsiveness,availability,end-user productivity,and resource sharing are benefits of __________ data processing.
Answer: distributed
Q5) ________ is the creation of a virtual,rather than actual,version of something.
Answer: Virtualization
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Chapter 4: Data Transmission
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Q1) For guided media such as twisted pair,coaxial cable,and optical fiber,the most significant sources of signal quality impairments are: attenuation and attenuation distortion,delay distortion,and __________.
Q2) The rate at which data can be transmitted over a given communication path,or channel,under given conditions,is referred to as the ___________.
Q3) The loudness of a signal is measured by its amplitude.
A)True
B)False
Q4) In order to completely compensate for attenuation,the signal generated must be at least as high in strength than the noise of the channel.
A)True
B)False
Q5) Because of its characteristics,free space loss is a particular problem in:
A)microwave tower transmissions
B)WANS
C)dial up or modem transmissions
D)satellite transmissions
Q6) The width of the range of frequencies that comprise the signal is the ________.
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Chapter 5: Data Communication Fundamentals
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Q1) The mapping from binary digits to signal elements is the ________ scheme.
Q2) For sizable blocks of data,asynchronous transmission is far more efficient than synchronous.
A)True
B)False
Q3) In modern communication systems,data is sent from one point to another via:
A)input data
B)alternating current (A / C)
C)pressure changes
D)electromagnetic signals
Q4) Analog signals are less susceptible to noise interference and are more prone to attenuation than digital signals.
A)True
B)False
Q5) In an operation very similar to that performed by a modem,analog data can be represented by a digital signal; the device that performs this function is a ________.
Q6) The process of error control involves two elements: error detection and _________.
Q7) The data plus preamble,postamble,and control information are called a
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Chapter 6: Data Link Control and Multiplexing
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Q1) ________ is a technique for assuring that a transmitting entity does not overwhelm a receiving entity with data.
Q2) Sharing capacity with other communication devices is multiplexing.
A)True
B)False
Q3) ________ refers to a connection's ability to weather changes to topology,protocol,and speed as a user moves.
Q4) The higher the ________ rate,the more cost-effective the transmission facility.
Q5) _________ is possible when the data rate of the transmission medium exceeds the required data rate of signals to be transmitted and a number of digital signals,or analog signals carrying digital data,can be carried simultaneously by interleaving portions of each signal in time.
Q6) A data link control protocol includes techniques for regulating the flow of data over a communications link and for compensating for transmission errors.
A)True
B)False
Q7) Two types of multiplexing techniques discussed in this chapter are FDM and _______.
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Chapter 7: The Internet
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Q1) A company that provides other companies or individuals with access to,or presence on,the Internet is a(n)__________.
A)point of presence
B)ISP
C)network service provider
D)central office
Q2) A computer connected to the Internet is called a "host".
A)True
B)False
Q3) The Internet is an unusual corporate tool in that it is owned and managed by a single entity.
A)True
B)False
Q4) The layout of the browser display is controlled by the __________ standard,which defines embedded commands in text files that specify features of the browser display,such as the fonts,colors,images and their placement on the display,and the location of the locations where the user can invoke the hyperlinks and their targets.
Q5) The networks connected at an IXP are owned and operated by _________.
Q6) _______ provides a universal language for remote computer terminals.
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Chapter 8: Tcp / Ip
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Q1) The ________ layer covers the physical interface between a data transmission device and a transmission medium or network.
A)physical
B)transport
C)application
D)network
Q2) Standards can be developed simultaneously for protocols at each layer of the architecture.
A)True
B)False
Q3) IP appends a header of control information to each segment to form a(n)__________.
A)IP datagram
B)end system
C)checksum
D)port
Q4) The standard network management protocol for TCP / IP networks is _________.
Q5) WLAN standards have been designed to replace Ethernet.
A)True
B)False
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Chapter 9: Client Server, intranet, and Cloud Computing
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Q1) Middleware is used to overcome lack of standardization.
A)True
B)False
Q2) In a 3-tier client-server implementation,the client is typically a "thin client".
A)True
B)False
Q3) Advantages of a web / database system as compared to a more traditional database approach include:
A)improved functionality and ease of administration
B)ease of administration and transaction tracking
C)rapid development and flexible information presentation
D)easy deployment and improved functionality
Q4) In a ________ processing configuration,the application processing is performed in an optimized fashion,taking advantage of the strengths of both client and server machines and of the distribution of data.
A)host-based
B)server-based
C)client-based
D)cooperative
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Chapter 10: Internet-Based Applications
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Q1) Image-based applications include facsimile,computer-aided design (CAD),publishing,and medical imaging.
A)True
B)False
Q2) Which of the following is NOT a standard MIME content type?
A)audio
B)binary
C)messages
D)image
Q3) The rapid growth in the use of the Web is due to the standardization of all the elements that support Web applications.
A)True
B)False
Q4) ________ media refers to multimedia files that begin playing immediately or within seconds after it is received by a computer from the Internet or Web,thus the media content is consumed as it is delivered from the server rather than waiting until an entire file is downloaded.
Q5) SSL provides three categories of security: confidentiality,message integrity,and
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Chapter 11: Internet Operation
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Q1) IP addresses are usually written in what is called ___________ notation ,with a decimal number representing each of the octets of the 32-bit address.
Q2) Both the broadcast and multiple unicast strategies are inefficient because they generate unnecessary copies of the source packet.
A)True
B)False
Q3) Typically,an IP address refers to an individual host on a particular network.
A)True
B)False
Q4) _________ is an identifier for a set of interfaces in which a packet is delivered to all interfaces identified by that address.
Q5) An autonomous system (AS)exhibits which of the following characteristics?
A)is a set of routers and networks managed by a single organization
B)consists of a group of routers exchanging information via a common routing protocol
C)except in times of failure is connected
D)all of the above
Q6) IPv6 allows three types of addresses: unicast,anycast,and _________.
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Chapter 12: Lan Architecture and Infrastructure
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Q1) Ethernet requires that each segment be no more than ___________ in length, including the installed cabling and patch cables at either end,for 10-Mbps and 100-Mbps transmissions.
Q2) Higher-level data,such as an IP datagram,are passed down to LLC,which appends control information as a header,creating an LLC ___________.
Q3) Drawbacks to a single-LAN strategy are: reliability,capacity,and _________.
Q4) Cables and associated connecting hardware whose transmission characteristics are specified up to _________ fall into Category 5 UTP cabling.
A)50 MHz
B)100 MHz
C)150 MHz
D)200 MHz
Q5) A ___________ is a separate network to handle storage needs.
A)NAN
B)LAN
C)SAN
D)MAC
Q6) In a data transmission system,the __________ is the physical path between transmitter and receiver.
Page 14
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Chapter 13: Ethernet, switches, and Virtual Lans
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Q1) It may happen that two or more stations attempt to transmit at about the same time; if this happens,there will be a _________ .
Q2) A _________ is a logical subgroup within a LAN that is created by software rather than by physically moving and separating devices.
Q3) The __________ is a data unit supplied by LLC.The maximum size of this field is 1500 octets for a basic frame,1504 octets for a Q-tagged frame,and 1982 octets for an envelope frame.
Q4) The total collection of devices that receive broadcast frames from each other is referred to as a broadcast _________ .
Q5) Which of the following is not one of the speeds found in a modern Ethernet LAN?
A)10 Mbps
B)100 Mbps
C)100 Gbps
D)10 Gbps
Q6) Which of the following LAN technologies has the highest capacity?
A)Ethernet
B)Fast Ethernet
C)Fibre Channel
D)Gigabit Ethernet
Page 15
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Chapter 14: Wireless Lans
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Q1) Another rule of thumb is that as the frequency increases,the easier it is to disrupt the signal.
A)True
B)False
Q2) Infrared LANs are an economic alternative to spread spectrum LANs.
A)True
B)False
Q3) A typical coverage area for a WLAN has a diameter of _________.
A)25 - 50 m
B)100-300 m
C)150 - 250 m
D)200 - 300 m
Q4) Wireless LAN applications typically employ control modules that link wireless LANs to wired LANs.
A)True
B)False
Q5) An ___________consists of two or more BSSs interconnected by a distribution system.
Q6) The most significant set of standards defining WLANs are those defined by the Q7) For privacy ,802.11 defined the __________ algorithm.
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Chapter 15: Wan Technology and Protocol
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Q1) Which of the following is a feature of Wide Area Networks?
A)strategic control
B)reliability
C)security
D)all of the above
Q2) ________ are the switching centers in the network.
A)Subscribers
B)Subscriber line
C)Exchanges
D)Trunks
Q3) Communication via circuit switching involves three phases: circuit establishment,________,and circuit disconnect.
Q4) Which of the following is NOT a reason for network jitter when using packet switching networks?
A)packets may vary in length
B)packets may take different paths through the network
C)packets may encounter network congestion
D)data rates will vary from one trunk line to the next
Q5) Two different technologies are used in wide area switched networks: circuit switching and _________ switching.
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Chapter 16: Wan Services
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Q1) Basically a VPN that simplifies linking Ethernet LANs at remote locations,_________ is marketed as an alternative to traditional WAN services such as T-1,leased lines,and frame relay.
Q2) ____________ directs data from one network node to the next based on short path labels rather than longer IP network addresses.
Q3) Selecting a WAN protocol for a particular business is a fairly simple task given current pricing structures and business traffic patterns.
A)True
B)False
Q4) Systems using common channel signaling:
A)employ a separate virtual channel for connection setup
B)carry connection information within each frame
C)use an expanded control field
D)do not use channels
Q5) All Frame Relay nodes contain which of the following protocols?
A)LAPB
B)LAPD
C)LAPF Core
D)LAPF Control
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Chapter 17: Wireless Lans
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Q1) Which of the following is NOT one of the components of the WAP specification?
A)A framework for wireless telephony applications
B)A full-featured communications protocol stack
C)A programming model based on the WWW
D)A markup language adhering to XML
Q2) The WAP Programming Model uses a ________ that acts as a proxy server for the wireless domain.
A)translator
B)WAP server
C)gateway
D)decoder
Q3) 4G networks,devices,and services are expected to evolve slowly over the next decade.
A)True
B)False
Q4) First generation mobile telephone systems used analog voice communication based on amplitude modulation.
A)True
B)False
Q5) Transmissions from the satellite to the earth station are __________.
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Chapter 18: Computer and Network Security Threats
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Q1) Of the three classes of intruders into computer systems and networks,the clandestine user is typically:
A)an insider to the organization
B)an outsider to the organization
C)either an insider or an outsider to the organization
D)none of the above
Q2) Data confidentiality assures that individuals control or influence what information related to them may be collected and stored.
A)True
B)False
Q3) A virus can be prepended or postpended to an executable program,or it can be embedded in some other fashion.
A)True
B)False
Q4) Which of the following statements regarding macro viruses is true?
A)a macro virus is platform independent
B)macro viruses infect documents,not executable portions of code
C)macro viruses are easily spread
D)all of the above
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Chapter 19: Computer and Network Security Techniques
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Q1) A _________ is a hardware or software entity inserted between a system or network to be protected and the Internet or other outside access network to control traffic in both directions to enforce a security policy.
Q2) Typically,a firewall is inserted between the premises network and the Internet to establish a controlled link and to erect an outer security wall or perimeter.
A)True
B)False
Q3) A security intrusion is defined as a successful attempt by a user to gain access to a system or system resource without proper authorization.
A)True
B)False
Q4) A typical use of circuit-level gateways is a situation in which the system administrator trusts the internal users.
A)True
B)False
Q5) The Secure Sockets Layer (SSL)and the follow-on Internet standard known as __________ provide a reliable end-to-end secure transport service over TCP.
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