Business Data Communications Practice Exam
Course Introduction
Business Data Communications explores the fundamental principles and technologies involved in the transmission of data within and between organizations. The course covers essential topics such as networking concepts, communication protocols, network topologies, hardware components, transmission media, and security considerations. Emphasis is placed on understanding how businesses leverage data communication systems to facilitate information exchange, enhance efficiency, and support decision-making processes. Students will also examine emerging trends such as cloud computing, wireless communication, and data network management, gaining both theoretical knowledge and practical skills necessary for managing modern business network infrastructures.
Recommended Textbook
Business Data Networks and Security 11th Edition by
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Page 2
Raymond R. Panko
Chapter 1: Core Network Concepts and Terminology
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Sample Questions
Q1) What process adds a header in front of an application message or fragment?
A) application
B) transport
C) internet
D) data link
Answer: B
Q2) A host sends a packet to another host containing seven single networks along the way.How many other hosts will there be along the route when Host A transmits?
A) 1
B) 2
C) 7
D) 9
Answer: A
Q3) Which of the following is an Internet supervisory protocol?
A) DNS
B) IP
C) both A and B
D) neither A nor B
Answer: A
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Chapter 2: Network Standards
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Sample Questions
Q1) The application layer processes application message fragmentation.
A)True
B)False
Answer: False
Q2) In TCP,port number fields are 16 bits long.How many possible port numbers are there?
A) 16
B) 1,024
C) 16,384
D) 64,536
Answer: D
Q3) A standards agency for OSI is ________.
A) ITU-T
B) IETF
C) both A and B
D) neither A nor B
Answer: A
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Chapter 3: Network Management
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Sample Questions
Q1) In QoS,the S stands for ________.
A) software
B) security
C) service
D) satisfaction
Answer: C
Q2) Priority is a way to handle a chronic lack of capacity.
A)True
B)False
Answer: False
Q3) Jitter is a problem for ________.
A) downloading a file attached to an e-mail
B) e-mail
C) both A and B
D) neither A nor B
Answer: D
Q4) In SNMP,the manager communicates directly with the managed device.
A)True
B)False
Answer: False
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Chapter 4: Network Security
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Sample Questions
Q1) Malware programs that masquerade as system files are called ________.
A) viruses
B) scripts
C) root malware
D) Trojan horses
Q2) Authentication should generally be ________.
A) as strong as possible
B) appropriate for a specific resource
C) the same for all resources
D) different for every different resource
Q3) ________ is the dominant firewall filtering method used on main border firewalls today.
A) ACL filtering
B) Application content filtering
C) Stateful packet inspection
D) NGFW
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) Which core diameter is used in multimode fiber.
A) 50 microns
B) 8 microns
C) 50 mm
D) 8 mm
Q2) Two switches that are 200 m apart at a speed of 20 Gbps should be connected using ________.
A) 10GBASE-SR
B) 100GBASE-SR
C) 10GBASE-SR with bonding
D) 100GBASE-SR with bonding
Q3) What is binary 0000 in hex?
A) 0
B) 1
C) 15
D) 16
Q4) A switch knows the entire data link between the source and destination hosts.
A)True
B)False
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Chapter 6: Wireless Lans I
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Sample Questions
Q1) As your wireless client travels away from an access point,________.
A) errors begin to increase
B) your transmission speed decreases
C) both A and B
D) neither A nor B
Q2) We use the terms Wi-Fi and ________ interchangeably in this book.
A) 802.1
B) 802.3
C) 802.11
D) 802.1X
Q3) Wider channel bandwidth ________.
A) increases transmission speed
B) allows more channels to be used in a service band
C) both A and B
D) neither A nor B
Q4) In a Wi-Fi LAN,wireless hosts generally send frames directly to one another.
A)True
B)False
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Chapter 7: Wireless Lans II
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Sample Questions
Q1) In 802.11i,protection is provided between the client and the ________.
A) access point
B) switch
C) router
D) server
Q2) In what initial authentication mode of 802.11i is a central authentication server used?
A) 802.1X
B) PSK
C) both A and B
D) neither A nor B
Q3) Bluetooth uses ________ operation.
A) all-to-all
B) point-to-multipoint
C) one-to-all
D) one-to-one
Q4) Centralized access point management ________.
A) increases management costs but provides better control
B) reduces management costs
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Chapter 8: TCP/IP Internetworking I
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Sample Questions
Q1) In the IPv4 address 1.2.3.4,what is the network part?
A) 1
B) 1.2
C) 1.2.3
D) We cannot say.
Q2) If you see 0 in the Next Header Field of a header,what will follow this header?
A) hop-by-hop options
B) destination options
C) mobility header
D) none of the above
Q3) A border router connects different IP ________.
A) subnets
B) networks
C) both A and B
D) neither A nor B
Q4) The version of Internet Protocol that is growing rapidly is IP version ________.
A) 1
B) 2
C) 4
D) none of the above
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Chapter 9: TCP/IP Internetworking II
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Sample Questions
Q1) Which of the following is a private IP address range?
A) 10.x.x.x
B) 128.171.x.x
C) both A and B
D) neither A nor B
Q2) SA protections are applied in the ________.
A) IKE phase
B) IPsec protection
C) AES
D) none of the above
Q3) In an IPv6 global unicast address,the interface ID is ________ bits long.
A) 8
B) 16
C) 64
D) Its size varies.
Q4) Good security is an enabler if a company wishes to use SNMP ________ commands.
A) Get
B) Set
C) Trap
D) Reset
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Chapter 10: Carrier Wide Area Networks Wans
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Sample Questions
Q1) In Carrier Ethernet,which connects multiple distant sites into a single Ethernet network?
A) E-Line service
B) E-LAN service
C) both A and B
D) neither A nor B
Q2) How do WAN carriers typically get their trunk lines?
A) They construct them.
B) They lease them from telephone companies.
C) They use wireless transmission.
D) They use the Internet.
Q3) Two-way amplifiers are needed for cable ________ service.
A) television
B) data
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.
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Chapter 11: Networked Applications
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Sample Questions
Q1) Which of the following forms of e-mail is usually easier to use if you are using someone else's computer?
A) Webmail
B) Mail programs using SMTP and POP
C) Mail programs using SMTP and IMAP
D) none of the above
Q2) In Tor,________ can read the content of the message delivered to the destination host.
A) no Tor router
B) all Tor routers
C) the first Tor router
D) the last Tor router
Q3) A lesson of XSS is that programmers should never trust ________.
A) contractors
B) their own staff colleagues
C) databases
D) user input
Q4) In VoIP traffic,the data field in a signaling packet usually carries codec data.
A)True
B)False
Page 13
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Chapter 12: Appendix: Managing the Security Process
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Sample Questions
Q1) The goal of security is to eliminate risk.
A)True
B)False
Q2) 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
Q3) DMZs are places for ________.
A) servers that are not accessible to clients outside the firm
B) servers that are freely accessible to clients outside the firm
C) servers that are freely accessible to clients inside the firm
D) servers that are inaccessible to any clients
Q4) Attacking your own firm occurs in ________.
A) vulnerability testing
B) auditing
C) both A and B
D) neither A nor B
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