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Test Bank for Networking Essentials 5th Edition by Jeffrey Beasley
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TEST BANKNETWORKING
ESSENTIALS
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EDITION: 5th Edition
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AUTHORS: Jeffrey Beasley, Piyasat
Nilkaew
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◊ ORIGINAL FROM PUBLISHER
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,Networking Essentials, 5e (Beasley)
Chapter 1 Introduction to Computer Networks
1) Which OSI layer is responsible for adding a header that includes information used in routing?
A) Data Link
B) Application
C) Physical
D) Network
Answer: D
2) Which OSI layer is considered the media access control layer?
A) Data Link
B) Transport
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C) Presentation
D) Application
E) None of these answers are correct.
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Answer: A
3) Which OSI layer combines messages or segments into packets?
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A) Physical
B) Transport
C) Network
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D) Data Link
E) None of these answers are correct.
Answer: C
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4) Which OSI layer is responsible for the mechanical connection to the network?
A) Network
B) Transport
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C) Data Link
D) None of these answers are correct.
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Answer: D
5) The OSI layer responsible for data compression and encryption is which of these?
A) Transport
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B) Presentation
C) Application
D) network
E) None of these answers are correct.
Answer: B
6) The preamble on the Ethernet packet is used to provide synchronization and negotiation of a
data link. True or False?
Answer: FALSE
Used only for synchronization but not for data link negotiation.
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Copyright © 2016 Pearson Education, Inc.
,7) The acronym TCP/IP stands for Transmission Controller Protocol/Intercommunication
Protocol. True or False?
Answer: FALSE
8) There are 34 bits and 4 octets in an IPv4 address. True or False?
Answer: FALSE
9) MAC is the acronym for multimedia access controller. True or False?
Answer: FALSE
10) What is the purpose of a wireless router?
A) This device is used to connect only wireless devices to a broadband Internet connection.
B) This device is used to interconnect both wireless and wired devices and establish the
broadband connection to the Internet.
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C) This device is used only in intranets.
D) This device is used in token-ring networks to manage the passing of the token.
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Answer: B
11) What is the purpose of a range extender?
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A) It relays the wireless signals from an access point or wireless router into areas with a weak
signal or no signal at all.
B) It is used to extend the tuning range of the wireless router so both TCP and UDP data traffic
can be received.
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C) It is used with fiber optics to extend the distance.
D) None of these answers are correct.
Answer: A
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12) What is the Wi-Fi Alliance?
A) An organization that tests and certifies wireless equipment for compliance with the 805.3
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standards
B) An organization that tests and certifies wireless equipment for compliance with the RS-232C
standards
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C) An organization that tests and certifies wireless equipment for compliance with the 802.11x
standards
D) An organization that tests and certifies wireless equipment for compliance with the 858.n
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standards
Answer: C
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Copyright © 2016 Pearson Education, Inc.
, 13) What is PAT?
A) Port address translation; it is used to store the home network's IP address and port numbers in
a NAT lookup table.
B) Port address translation; it is used to store the home network's MAC address and port
numbers in a NAT lookup table.
C) Port address translation; it is used to store the home network's public IP address and port
numbers in a NAT lookup table.
D) Port address transfer; it is used to store the home network's MAC address and port numbers in
a NAT lookup table.
Answer: A
14) In regards to NAT, what is overloading?
A) Where NAT assigns the home network's IP address to a non-routable public IP address
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B) Where NAT assigns the home network's IP address to a single public IP address
C) Where NAT assigns the home network's IP addresses to a single public IP address
D) Where NAT assigns the home network's PAT IP address to a public NAT IP address
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Answer: C
15) Excessive amounts of broadcasts on a network are called a broadcast storm. True or False?
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Answer: TRUE
16) What frequency band is used by 802.11ac?
A) 5GHz
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B) 2.4GHz
C) 6GHz
D) 2GHz
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Answer: A
17) What is a possible transfer rate in a 802.11ac wireless network?
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A) 100Mbps
B) 10Mbps
C) 500Mbps
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D) 1Gbps
Answer: D
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18) You need to troubleshoot the wireless settings for your adapter in a Windows 8 environment.
What section of Control Panel do you use?
A) Computers and Networking
B) Network Connections
C) Wireless Command Center
D) Network and Sharing Center
Answer: D
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Copyright © 2016 Pearson Education, Inc.
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