Business Data Communications
Test Bank
Course Introduction
Business Data Communications explores the fundamental concepts and technologies that underpin modern organizational communication systems. The course covers topics such as network architectures, protocols, transmission media, data security, and the integration of wireless and wired networks. Students will learn how businesses utilize data communication networks to support operations, enable collaboration, and secure information flow. Emphasis is placed on practical applications, including local area networks (LANs), wide area networks (WANs), internet infrastructures, and the latest trends in cloud computing and IoT connectivity. By the end of the course, students will be equipped to assess, manage, and implement effective data communication solutions in a business environment.
Recommended Textbook
Business Data Networks and Security 11th Edition by Raymond
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Page 2
R. Panko
Chapter 1: Core Network Concepts and Terminology
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Sample Questions
Q1) The IETF primarily ________.
A) manages the Internet
B) creates Internet standards
C) coordinates the work of ISPs
D) all of the above
Answer: B
Q2) The KrebsOnSecurity.com attack ________.
A) was a denial of service attack.
B) used IoT devices to attack the site
C) both A and B
D) neither A nor B
Answer: C
Q3) A DHCP server to assigns the client host the same IP address each time.
A)True
B)False
Answer: False
Q4) The transport process always fragments the application message.
A)True
B)False
Answer: False
Page 3
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Chapter 2: Network Standards
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Sample Questions
Q1) ASCII has a 7-bit code.How many keyboard characters can it represent?
A) 128
B) 256
C) 512
D) 1,024
Answer: A
Q2) The UDP header has ________ fields.
A) 4
B) 8
C) 16
D) 32
Answer: A
Q3) Which standards agency is especially important for physical transmission processes?
A) ITU-T
B) IETF
C) Both A and B are about equally important.
D) Neither A nor B are important.
Answer: A
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Page 4
Chapter 3: Network Management
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Sample Questions
Q1) The business benefit of multiplexing is ________.
A) lower cost
B) higher speed
C) avoiding the need to send many transmission links through narrow conduits
D) security
Answer: A
Q2) Adding applications that cannot tolerate jitter may require ________.
A) switch upgrades
B) improved switch management
C) improved security
D) all of the above
Answer: A
Q3) Forwarding functions are located in routers in ________.
A) traditional operation
B) SDN
C) both A and B
D) neither A nor B
Answer: A
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Chapter 4: Network Security
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Sample Questions
Q1) In digital certificate authentication,the supplicant encrypts the challenge message with ________.
A) the supplicant's private key
B) the verifier's private key
C) the true party's private key
D) none of the above
Q2) Requiring someone prove his or her identity is ________.
A) confidentiality
B) authentication
C) authorization
D) both B and C
Q3) In general,what should an employer do whenever an employee leaves the firm?
A) Their accounts should be disabled instantly
B) They should be given no prior notice that they are being released
C) both A and B
D) neither A nor B
Q4) Hacking is defined as using a computer resource without authorization or in excess of authorization.
A)True
B)False
Page 6
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Chapter 5: Ethernet 8023switched Lans
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Sample Questions
Q1) When a user attempts to plug into an Ethernet switch protected by 802.1X,________.
A) the switch will freeze
B) the switch port will freeze
C) the user will be required to authenticate himself or herself
D) none of the above
Q2) Which UTP quality levels are needed to send signals 100 meters at 10 gigabits per second?
A) category 6
B) category 6A
C) both A and B
D) neither A nor B
Q3) A system with 16 states can transmit ________ bits per clock cycle
A) 3
B) 4
C) 5
D) none of the above
Q4) In this book,we use the terms Ethernet and 802.3 interchangeably.
A)True
B)False
Page 7
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Chapter 6: Wireless Lans I
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Sample Questions
Q1) In a Wi-Fi LAN,wireless hosts generally send frames directly to one another.
A)True
B)False
Q2) Two access points that operate on the same channel will ________.
A) bond
B) coordinate their use of the channel
C) interfere
D) divide the available spectrum about equally
Q3) The 802.11 standard has two mechanisms for media access control.Of the two,________ is mandatory.
A) MAC
B) CSMA/CA+ACK
C) RTS/CTS
D) CSMA/CD
Q4) What propagation problem is especially bad in moist air?
A) absorptive attenuation
B) electromagnetic interference
C) multipath interference
D) inverse square law attenuation
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Chapter 7: Wireless Lans II
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Sample Questions
Q1) IoT transmissions usually involve ________.
A) high transmission speeds
B) low transmission distances
C) both A and B
D) neither A nor B
Q2) In 802.1x initial authentication mode,the authenticator is the ________.
A) wireless client
B) wireless access point
C) authentication server
D) none of the above
Q3) After two wireless clients authenticate themselves via PSK to an access point,they will use ________ to communicate with the access point.
A) the preshared key
B) an 802.1X key
C) WPA keys
D) different pairwise session keys
Q4) Nearly all public Wi-Fi hotspots encrypt your transmissions.
A)True
B)False
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Chapter 8: TCP/IP Internetworking I
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Sample Questions
Q1) If I simplify the address 2001:0000:0000:00fe:0000:0000:0000:cdef,I get ________.
A) 2001:0:0:fe::cdef
B) 2001::fe:0:0:0:cdef
C) 2001:0:0:fe:0:0:0:cdef
D) 2001::00fe:0::cdef
Q2) For cost reasons,you should ________ where you can,________ where you must.
A) switch; switch
B) route; route
C) switch; route
D) route; switch
Q3) In an IPv4 packet,the ________ field value tells the type of message contained in the IP packet's data field.
A) data
B) next-hop
C) next-header
D) protocol
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10
Chapter 9: TCP/IP Internetworking II
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Sample Questions
Q1) In IPv6,ESP protects the IP packet's_____.
A) entire length
B) payload
C) header
D) none of the above
Q2) In the Border Gateway Protocol,"gateway" means ________.
A) firewall
B) switch
C) router
D) none of the above
Q3) An advantage of using DHCP to configure clients is that ________.
A) the configuration information will be up-to-date
B) the configuration will be done securely
C) both A and B
D) neither A nor B
Q4) Which of the following is used in ESP?
A) ESP header
B) ESP trailer
C) Integrity check value
D) all of the above
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Chapter 10: Carrier Wide Area Networks Wans
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Sample Questions
Q1) How does carrier Ethernet differ from traditional Ethernet?
A) It is offered by carriers instead of being installed and managed by the company using it.
B) It is for MAN and WAN services.
C) both A and B
D) neither A nor B
Q2) In Carrier Ethernet,which service is a competitor for leased line service?
A) E-Line
B) E-LAN
C) both A and B
D) neither A nor B
Q3) Compression reduces traffic by ________.
A) reducing redundancy in the data
B) preventing undesirable traffic from entering the network
C) both A and B
D) neither A nor B
Q4) Which spends less processing time on each packet arriving at a router?
A) traditional routing
B) MPLS
C) Both spend about equal time.
Page 12
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Chapter 11: Networked Applications
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Sample Questions
Q1) Which phase of VoIP is different in traditional VoIP and Skype?
A) signaling
B) transport
C) login
D) none of the above
Q2) The primary applications architecture is ________.
A) TCP/IP
B) OSI
C) both A and B
D) neither A nor B
Q3) IaaSs own ________.
A) application software
B) servers
C) both A and B
D) neither A nor B
Q4) For the transport layer,VoIP uses ________ for transport transmission.
A) TCP
B) UDP
C) SIP
D) IP
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Chapter 12: Appendix: Managing the Security Process
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Sample Questions
Q1) CSIRT leaders should come from ________.
A) an outside crisis vendor
B) a business department
C) the security department
D) the IT department
Q2) Errors in assigning permission are reduced if assignments are based on ________.
A) individuals
B) roles
C) standard authorizations
D) none of the above
Q3) By changing credentials verification information on a(n)________,a firm can immediately cut off all access to corporate resources.
A) authenticator
B) verifier
C) authentication server
D) border firewall
Q4) Servers in the Demilitarized Zone (DMZ)are rarely attacked by clients on the Internet.
A)True
B)False
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