Business Data Communications
Exam Bank
Course Introduction
Business Data Communications introduces students to the fundamental principles and technologies that enable the flow of information within and between organizations. The course covers key topics such as data transmission, network topologies, protocol architectures, and security considerations, emphasizing how businesses leverage communication networks to support operations, enhance competitiveness, and optimize decision-making. By exploring both wired and wireless systems, students gain an understanding of network infrastructure, management techniques, and emerging trends like cloud computing and IoT, preparing them to effectively analyze and implement data communication solutions in diverse business environments.
Recommended Textbook
Business Data Networks and Security 10th Edition by Raymond
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15 Chapters
838 Verified Questions
838 Flashcards
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Page 2
R. Panko
Chapter 1: Welcome to the Cloud
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95 Verified Questions
95 Flashcards
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Sample Questions
Q1) At what layer are frames standardized?
A)physical
B)data link
C)Internet
D)all of the above
Answer: B
Q2) The path that a frame takes across a single network is a ________.
A)physical link
B)data link
C)route
D)all of the above
Answer: B
Q3) Content delivery networks mainly ________.
A)increase transmission speed
B)increase program selection
C)decrease program selection
D)reduce latency
Answer: D
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Chapter 2: Network Standards
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Sample Questions
Q1) The ________ contains the content being delivered by a message.
A)address field
B)header
C)data field
D)trailer Answer: C
Q2) If the destination host finds an error in an Ethernet frame,it ________.
A)sends back a NAK
B)sends back a ACK
C)both A and B
D)neither A nor B
Answer: D
Q3) In IP,the first bit in the second row is ________.
A)0
B)31
C)32
D)63
Answer: C
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Chapter 3: Network Security
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Sample Questions
Q1) If you see a username and password on a Post-It note that anyone can see on a monitor,is it hacking if you use this information to log in?
A)Yes
B)No
C)We cannot say from the information given.
Answer: A
Q2) Which of the following can be upgraded after it is installed on a victim computer? (Choose the most specific answer.)
A)Trojan horses
B)bots
C)viruses
D)worms
Answer: B
Q3) Which of the following can spread more rapidly?
A)directly-propagating viruses
B)directly-propagating worms
C)Both of the above can spread with approximately equal speed.
Answer: B
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Chapter 4: Network and Security Management
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Sample Questions
Q1) Which of the following specifies what should be done?
A)policies
B)implementation
C)both A and B
D)neither A nor B
Q2) Which phase of the plan-protect-respond cycle takes the largest amount of work?
A)plan
B)protect
C)respond
D)The phases require about equal amounts of effort.
Q3) The SNMP manager stores the information it receives from Get commands
A)in the MIB
B)on the agent
C)on the managed device
D)in the cloud
Q4) In SDN,which device manages the control function for individual devices?
A)SNMP manager console
B)forwarding device itself
C)SDN policy server
D)SDN controller
6
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Chapter 5: Ethernet 8023switched Lans
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Sample Questions
Q1) The main benefit of parallel transmission over serial transmission is ________.
A)reliability
B)speed
C)both A and B
D)neither A nor B
Q2) In binary signaling there is (are)________ state(s).
A)one
B)two
C)a number of
D)an infinite number of
Q3) What is the maximum power for POE Plus in the standard?
A)15 watts
B)25 watts
C)75 watts
D)150 watts
Q4) At what layer is the 100BASE-TX standard?
A)physical
B)data link
C)Internet
D)physical and data link
Page 7
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Chapter 6: Wireless Lans I
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Sample Questions
Q1) What propagation problem becomes worse as there is a large and dense object between sender and receiver?
A)multipath interference
B)shadow zones or dead zones
C)both A and B
D)neither A nor B
Q2) CSMA/CA+ACK usually is ________.
A)mandatory
B)optional
C)not important
D)efficient
Q3) To use an access point,you need to know its ________.
A)SSID
B)BSSID
C)ESSID
D)Wi-Fi ID
Q4) CSMA/CD+ACK is ________.
A)unreliable
B)reliable
C)semireliable
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Chapter 7: Wireless Lans 2
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Sample Questions
Q1) Which of the following has a dangerous vulnerability that is causing problems today?
A)PEAP
B)802.11i
C)WPA
D)WPS
Q2) What is the strongest security protocol for 802.11 today?
A)802.11i
B)802.11s
C)802.11X
D)WPA
Q3) In which frequency band does NFC operate?
A)2.4 GHz
B)5 GHz
C)both A and B
D)neither A nor B
Q4) Which offers stronger security?
A)WPA
B)802.11i
C)Both A and B offer equally strong security.
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Chapter 8: Tcp-Ip Internet Working I
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Sample Questions
Q1) If I simplify the address 2001:0000:0000:00fe:0000:0000:abcd:13ef,I get ________.
A)2001:::fe:::abcd:13ef
B)2001::fe:::abcd:13ef
C)2001:::fe::abcd:13ef
D)2001::fe::abcd:13ef
Q2) A router must use the Address Resolution Protocol process ________.
A)when a new router comes online
B)when a router goes offline
C)whenever it forwards an IP packet
D)whenever it forwards an IP packet to a host that is not in its ARP cache
Q3) Compared to normal routing,decision caching is ________.
A)faster
B)less dangerous
C)both A and B
Q4) Which of the following is one of the three parts of an IPv4 address?
A)subnet part
B)mask
C)both A and B
D)neither A nor B
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Chapter 9: Tcp-Ip Internet Working 2
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Sample Questions
Q1) A company receives its domain name from ________.
A)IETF
B)its ISP
C)a domain registrar
D)its parents
Q2) SNMPv3 uses ________ for authentication.
A)community names
B)digital certificates and digital signatures
C)a different password for each manager-agent pair
D)all of the above
Q3) In NAT,the ________ creates new external source IP addresses and port numbers.
A)router
B)firewall
C)source host
D)destination host
Q4) Which of the following would be an SNMP object?
A)number of rows in routing table
B)a managed switch
C)both A and B
D)neither A nor B
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Chapter 10: Carrier Wide Area Networks Wans
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Sample Questions
Q1) DSL residential service provides ________.
A)symmetric speed
B)asymmetric speed
C)both A and B
D)neither A nor B
Q2) SDN can ________.
A)permit routing rules to be changed rapidly
B)reduces router costs
C)both A and B
D)neither A nor B
Q3) Control functions are located in routers in ________.
A)traditional routing
B)SDN
C)both A and B
D)neither A nor B
Q4) The PSTN core is organized as a ________.
A)mesh
B)hierarchy
C)modified hierarchy
D)loop
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Chapter 11: Networked Applications
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Sample Questions
Q1) BitTorrent's .torrent files are stored on the ________.
A)swarm
B)index server
C)tracker
D)individual peers
Q2) According to the principle of defense in depth,antivirus filtering should be done in at least ________ location(s).
A)1
B)2
C)3
D)4
Q3) A lesson of XSS is that programmers should never trust ________.
A)contractors
B)their own staff colleagues
C)databases
D)user input
Q4) If companies place antivirus software on all of their client PCs,this will stop almost all virus infections.
A)True
B)False
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Chapter 12: Module a More on Tcp
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Sample Questions
Q1) Flow control in TCP depends on the ________ field.
A)acknowledgement number
B)window size
C)both A and B
D)neither A nor B
Q2) A TCP segment begins with octet 8,658 and ends with octet 12,783.What number does the sending host put in the sequence number field?
A)8,658
B)8,659
C)12,783
D)12,784
Q3) A TCP segment begins with octet 8,658 and ends with octet 12,783.What number does the receiving host put in the acknowledgment number field of the TCP segment that acknowledges this TCP segment?
A)8,658
B)8,659
C)12,783
D)12,784
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Chapter 13: Module B More on Modulation
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Sample Questions
Q1) In QAM,if you have eight possible amplitudes,you have ________ possible states.
A)4
B)8
C)16
D)none of the above
Q2) In QAM,if you have eight possible amplitudes,how many bits can you send per clock cycle?
A)3
B)6
C)8
D)16
Q3) QAM uses ________.
A)amplitude modulation
B)phase modulation
C)both A and B
D)neither A nor B
Q4) Amplitude modulation uses two ________ levels.
A)loudness
B)frequency
C)both A and B
Page 15
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Chapter 14: Module C More on Telecommunications
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Sample Questions
Q1) ATM provides quality-of-service for voice.
A)True
B)False
Q2) Because of the curvature of the earth,microwave systems that must travel over long distances need ________.
A)to operate at low frequencies
B)to operate at high frequencies
C)repeaters
D)mirrors
Q3) Which of the following is packet-switched?
A)ATM
B)TDM
C)both A and B
D)neither A nor B
Q4) Which of the following have an altitude of a few thousand kilometers (a few thousand miles)?
A)GEOs
B)LEOs
C)MEOs
D)none of the above
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Chapter 15: Module D Directory Servers
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Sample Questions
Q1) A company may have many AD domains.
A)True
B)False
Q2) A group of Active Directory domains organized in a hierarchy is a ________.
A)network
B)tree
C)forest
D)none of the above
Q3) In Active Directory domains,there is complete replication between domain controllers ________.
A)in the same domain
B)in adjacent levels in the domain hierarchy
C)throughout a tree
D)throughout a forest
Q4) Which of the following is used to query a directory server to get someone's e-mail address?
A)LDAP
B)IMAP
C)SNMP
D)HTTP
Page 17
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