Information Technology Management
Final Test Solutions
Course Introduction
Information Technology Management examines the strategic role that information systems and technology play in modern organizations. The course covers topics such as IT infrastructure, systems integration, project management, and the alignment of IT strategy with business goals. Students explore ways to evaluate and implement technology solutions, manage IT resources, lead digital transformation initiatives, and address issues related to security, ethics, and data governance. Emphasis is placed on critical thinking, problem-solving, and effective communication skills needed to bridge the gap between technical teams and organizational leadership.
Recommended Textbook
Business Data Communications Infrastructure Networking and Security 7th Edition by William
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Page 2
Stallings
Chapter 1: Introduction
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Q1) The need to store and transmit images has been a driving force in the development of networking technology.
A)True
B)False
Answer: True
Q2) Among the application services lists given below,which lists the services in order such that the desired throughput rates are increasing?
A)Still image transfers,large file transfers,transaction processing,and voice
B)Voice,transaction processing,still image transfers,and large file transfers
C)Large file transfers,voice,transaction processing,and still image transfers
D)Transaction processing,voice,still image transfers,and large file transfers
Answer: D
Q3) An architecture where multiple computers provide database functions,file services,printing services,and other specialized functions on a shared basis for many users is called a _____________ architecture.
Answer: client / server
Q4) Three key benefits of IP network convergence are: cost savings,transformation, and
Answer: effectiveness
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Chapter 2: Business Information
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Q1) Analog information sources include:
A)sounds
B)music
C)video
D)all of the above
Answer: D
Q2) When using analog communications,channel capacity is measured in hertz (Hz)where 1 Hz equals 1000 oscillations per second.
A)True
B)False
Answer: False
Q3) With _________ compression receivers can reproduce an exact digital duplicate of the original audio stream transmitted by the sender by expanding / decompressing the file that is received.
Answer: lossless
Q4) A _________ is an on-premise telephone switch,owned or leased by an organization that interconnects the telephones at that location and provides outside access to the public telephone systems and other voice services.
Answer: private branch exchange (PBX)
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Chapter 3: Distributed Data Processing
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Q1) A _________ is a dedicated network that provides access to various types of storage devices including tape libraries,optical jukeboxes,and disk arrays.
A)BI
B)DW
C)SAN
D)NAS
Answer: C
Q2) Responsiveness,availability,end-user productivity,and resource sharing are benefits of __________ data processing.
Answer: distributed
Q3) Big data and the evolution of data processing and communications technologies continue to reshape the balance of centralized and distributed processing within enterprise networks.
A)True
B)False
Answer: True
Q4) The businesses that provide computer-based services to business subscribers over a network are called ___________.
Answer: application service providers (ASPs)
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Chapter 4: Data Transmission
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Q1) A(n)_________ signal is one in which the signal intensity varies in a smooth fashion over time.
Q2) The bandwidth of a signal is:
A)the width of the spectrum
B)the average of the frequencies
C)the range of frequencies in the signal
D)the minimum amplitude of the signal
Q3) 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
Q4) ________ is a measure of the position of the waveform relative to a given moment of time within the period of a signal.
Q5) _________ is the unwanted coupling between signal paths.
A)Thermal noise
B)Intermodulation noise
C)Crosstalk
D)Impulse noise
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) One of the least common error-detecting codes is the cyclic redundancy check.
A)True
B)False
Q2) In order to compensate for synchronization problems,another type of encoding method called biphase can be employed; these methods place a clock pulse within the data stream.
A)True
B)False
Q3) A _______ modem permits Internet access over cable television networks.
Q4) The efficiency of an asynchronous transmission using 1 stop bit,1 start bit,and 1 parity bit is:
A)20%
B)30%
C)50%
D)70%
Q5) Both analog and digital information can be encoded as either analog or digital signals.
A)True B)False
Q6) 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) In order to achieve the greatest return on their data communication investments,it is important for businesses to maximize the amount of information carried over their transmission lines.
A)True
B)False
Q2) With ________ the light steaming through the fiber consists of many colors,or wavelengths,each carrying a separate channel of data.
A)LCF
B)WDM
C)TDM
D)FWD
Q3) Sharing capacity with other communication devices is multiplexing.
A)True
B)False
Q4) _________ standards provide a means by which a stream of data can be transmitted,either synchronously or asynchronously,onto a transmission medium.
Q5) Although the use of ________ for voice transmission is declining,it is still used widely for television distribution systems,including broadcast television and cable TV.
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Chapter 7: The Internet
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Q1) The __________ is a communications protocol for use in TCP / IP networks for fetching the files from the appropriate servers as specified by the hyperlinks.
Q2) The most important service an ISP provides is access to other _________ networks.
Q3) The ________ is a global information system logically linked together by a globally unique address space based on the Internet Protocol or its subsequent extensions / follow-ons.
Q4) The Internet evolved from the _________,which was developed in 1969 by the Advanced Research Projects Agency (ARPA)of the U.S.Department of Defense.
Q5) End users typically contact all of the company servers by IP address rather than by name.
A)True
B)False
Q6) The networks connected at an IXP are owned and operated by _________.
Q7) ARPANET was the first message-switching network.
A)True
B)False
Q8) _______ provides a universal language for remote computer terminals.
Page 9
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Chapter 8: Tcp / Ip
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Q1) The _________ is used to send files from one system to another under user command.
A)UDP
B)SMTP
C)FTP
D)SSH
Q2) LANs and WANs are usually isolated entities.
A)True
B)False
Q3) ________ is a Cisco proprietary product.
A)VoIP
B)SKINNY
C)SMTP
D)SIP
Q4) Wireless networking brings:
A)increased security risks
B)management headaches
C)increased demands on support staff
D)all of the above
Q5) The standard network management protocol for TCP / IP networks is _________.
Page 10
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Chapter 9: Client Server, intranet, and Cloud Computing
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Q1) ________ is a language developed by IBM and standardized by ANSI for addressing,creating,updating,or querying relational databases.
Q2) NIST defines three service models that can be viewed as nested service alternatives: SaaS,PaaS,and IaaS.
A)True
B)False
Q3) A _________ is a networked information requestor,usually a PC or workstation,that can query database and / or other information from a server.
Q4) Typically cloud computing services will be rented from an external company that hosts and manages them.
A)True
B)False
Q5) Most client / server environments emphasize the use of a GUI.
A)True
B)False
Q6) ________ is a set of function and call programs that allow clients and servers to intercommunicate.
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Chapter 10: Internet-Based Applications
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Q1) Email functions concerned with the protocol operations needed to transmit and deliver messages are considered:
A)message transfer agent functions
B)client functions
C)email client functions
D)user agent functions
Q2) The ________ works on behalf of user actors and user applications and is their representative within the e-mail service.
A)MUA
B)MHS
C)MSA
D)MTA
Q3) VoIP,streaming audio,and streaming video are considered _________ applications even though each involves a single media type.
Q4) Image-based applications include facsimile,computer-aided design (CAD),publishing,and medical imaging.
A)True
B)False
Q5) A _______ is a network data object or service that can be identified by a URL.
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Chapter 11: Internet Operation
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Q1) _________ is an identifier for a set of interfaces in which a packet is delivered to one of the interfaces identified by that address (the "nearest" one,according to the routing protocols' measure of distance).
Q2) Which of the following describes class C networks?
A)Many networks,each with a few hosts
B)Medium number of networks,each with a medium number of hosts
C)Few networks,each with many hosts
D)A dedicated network,with a set number of hosts
Q3) One way to assure that the packet is received by all members of the group is to broadcast a copy of each packet to each network in the configuration,over the least-cost route for each network.
A)True
B)False
Q4) _________ makes more efficient use of the 32-bit IP address than the class-based method primarily because it makes more efficient use of the address space.
Q5) Typically,an IP address refers to an individual host on a particular network.
A)True
B)False
Q6) The term _________ refers to two routers that share the same network.
Page 13
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Chapter 12: Lan Architecture and Infrastructure
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Q1) Coaxial cable is less susceptible to electromagnetic interference, but more expensive,when compared with twisted pair cables.
A)True
B)False
Q2) One of the advantages of having a bottom up approach to building a LAN is that individual managers are very close to the group and therefore understand the needs of the department and can respond quickly.
A)True
B)False
Q3) 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
Q4) Higher-level data,such as an IP datagram,are passed down to LLC,which appends control information as a header,creating an LLC ___________.
Q5) Twisted pair comes in two varieties: unshielded and _________.
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Chapter 13: Ethernet, switches, and Virtual Lans
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Q1) This long-wavelength option supports duplex links of up to 550 m of 62.5- m or 50- m multimode fiber or up to 5 km of 10- m single mode fiber.Wavelengths are in the range of 1270-1355 nm.
A)1000BASE-SX
B)1000BASE-T
C)1000BASE-LX
D)1000BASE-CX
Q2) VLANs provide the ability for any organization to be physically dispersed throughout the company while maintaining its group identity.
A)True
B)False
Q3) Two major types of layer 2 switches are available for use in business networks: store-and-forward switch and ____________.
Q4) A _________ is an alternative to the bus topology,connects with a transmit and receive line,and acts as a repeater.
Q5) Segmenting a larger network into ___________ domains can help to prevent a fault in one network segment from affecting the entire network.
Q6) A _________ provides a means of interconnecting similar LANs.
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Chapter 14: Wireless Lans
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Q1) 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
Q2) _________ enables an established association to be transferred from one AP to another,allowing a mobile station to move from one BSS to another.
A)Association
B)Reassociation
C)Disassociation
D)all of the above
Q3) __________ antenna architecture is the most important of the enhancements provided by 802.11n.
Q4) The key advantages of the WLAN are that it eliminates the wiring cost and it accommodates mobile workstations.
A)True
B)False
Q5) An ___________consists of two or more BSSs interconnected by a distribution system.
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Chapter 15: Wan Technology and Protocol
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Q1) The ________ is the link between the subscriber and the network,also referred to as the subscriber loop or local loop.
A)subscribers
B)subscriber line
C)exchanges
D)trunks
Q2) ________ are the means by which the network is managed and by which calls are established,maintained,and terminated.
Q3) In circuit switching networks,channel capacity between each pair of stations and / or nodes along the connection path must be reserved regardless if used or not.
A)True
B)False
Q4) Which of the following is NOT one of the stated advantages of packet switching over circuit switching?
A)there is less network delay
B)data rate conversion can be provided
C)priorities can be used
D)connections are never rejected
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Chapter 16: Wan Services
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Q1) Logical connections in ATM are referred to as __________.
Q2) Carrier Ethernet often capitalizes on the existence of optical fiber and dense wavelength division multiplexing (DWDM) infrastructure to provide WAN and MAN services to subscribers.
A)True
B)False
Q3) Congestion avoidance procedures are employed when congestion starts to build up and increasing queue lengths are detected.
A)True
B)False
Q4) Due to the fixed cell size,the processing of ATM cells is faster than protocols employing a variable length cell.
A)True
B)False
Q5) X.25 uses out-of-band signaling.
A)True
B)False
Q6) Most WAE implementations use __________to interconnect network endpoints.
Q7) A _________ is a bundle of virtual channels that have the same endpoints.
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Chapter 17: Wireless Lans
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Q1) 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
Q2) The ____________ is a universal,open standard developed by the WAP Forum to provide mobile users to access telephony and information services including the Internet and the Web.
Q3) In 4G networks,IP telephony is the norm as are IP packet- switched connections for Internet access.
A)True
B)False
Q4) The ideal design for cells in a cellular network is a hexagonal shape because _____.
A)this makes enforcement of shapes easier
B)this is the easiest to implement
C)this makes all frequencies available to all cells
D)this makes the distance to all adjacent cells the same
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) A logic bomb is a useful,or apparently useful,program or command procedure containing hidden code that,when invoked, performs some unwanted or harmful function.
A)True
B)False
Q2) The three concepts that form the CIA triad are: confidentiality,integrity,and ____________.
Q3) A loss of __________ is the disruption of access to or use of information or an information system.
Q4) All parasitic malware is software that replicates.
A)True
B)False
Q5) __________ involve some modification of the data stream or the creation of a false stream and can be subdivided into four categories: replay, masquerade,modification of messages,and denial of service.
Q6) __________ capture keystrokes on a compromised system.
A)Worms
B)Zombies
C)Keyloggers
D)All of the above
20
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Chapter 19: Computer and Network Security Techniques
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Q1) ____________ integrates with the operating system of a host computer and monitors program behavior in real time for malicious actions and then blocks potentially malicious actions before they have a chance to affect the system.
Q2) The most complex part of SSL is the ___________ Protocol.
A)Handshake
B)Change Cipher Spec
C)Alert
D)Record
Q3) IPSec transport mode provides protection primarily for:
A)the Internet layer
B)upper-layer protocols
C)network and link-layer protocols
D)all of the above
Q4) Which security area is addressed in IEEE 802.11i ?
A)authentication
B)key management
C)data transfer privacy
D)all of the above
Q5) Malware defense can involve a combination of prevention,__________,and removal.
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Q6) An IDS comprises three logical components: sensors,user interface,and _______.