Business Data Networks and Security, 11e (Panko)
Chapter 5 Ethernet (802.3) Switched LANs
1) A local area network operates ________.
A) on a customer premises
B) between customer premises
C) both A and B
D) neither A nor B
Answer: A
Difficulty: Basic
Question: 1
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology
2) Ethernet standards are specified at the ________ layer.
A) physical
B) Internet
C) both A and B
D) neither A nor B
Answer: A
Difficulty: Basic
Question: 2a
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology
3) Ethernet standards are specified at the ________ layer.
A) physical
B) data link
C) both A and B
D) neither A nor B
Answer: C
Difficulty: Basic
Question: 2a
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology
4) Ethernet standards are specified at the ________ layer.
A) Internet
B) transport
C) both A and B
D) neither A nor B
Answer: D
Difficulty: Basic
Question: 2a
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology
5) Ethernet messages are ________.
A) frames
B) packets
C) segments
D) not named
Answer: A
Difficulty: Basic
Question: 2b
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology, Application of Knowledge
6) Ethernet forwarding devices are ________.
A) switches
B) routers
C) access points
D) both A and B
Answer: A
Difficulty: Basic
Question: 2c
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology, Application of Knowledge
7) The path a message takes from the source host to the destination device in an Ethernet network is a ________.
A) physical link
B) data link
C) route
D) label-switched route
Answer: B
Difficulty: Basic
Question: 2d
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology, Application of Knowledge
8) ________ is the official name for Ethernet addresses.
A) MAC
B) EUI-48
C) both A and B
D) neither A nor B
Answer: B
Difficulty: Basic
Question: 2e
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology, Application of Knowledge
9) Ethernet addresses were formerly called ________ addresses.
A) MAC
B) EUI-48
C) both A and B
D) neither A nor B
Answer: A
Difficulty: Deeper
Question: 2e
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology
10) What organization (most specifically) creates Ethernet standards?
A) IEEE
B) IETF
C) ISO
D) OSI
Answer: A
Difficulty: Basic
Question: 2f
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology
11) What 802 Working Group creates Ethernet standards?
A) 802.1
B) 802.2
C) 802.3
D) 802.11
Answer: C
Difficulty: Basic
Question: 2f
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology, Application of Knowledge
12) In this book, we use the terms Ethernet and 802.3 interchangeably.
Answer: TRUE
Difficulty: Basic
Question: 2f
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology
13) What type of switch connects users to the network?
A) user switches
B) core switches
C) access switches
D) workgroup switches
Answer: D
Difficulty: Basic
Question: 3a
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology, Application of Knowledge
14) What type of switch connects switches to other switches?
A) trunk switches
B) core switches
C) workgroup switches
D) none of the above
Answer: B
Difficulty: Deeper
Question: 3b
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology, Application of Knowledge
15) ________ links connect users to workgroup switches.
A) Trunk
B) Core
C) Access
D) Workgroup
Answer: C
Difficulty: Basic
Question: 3c
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology, Application of Knowledge
16) ________ links connect switches to other switches.
A) Trunk
B) Long
C) Access
D) Workgroup
Answer: A
Difficulty: Basic
Question: 3d
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology, Application of Knowledge
17) Trunk links connect switches to ________ switches.
A) core
B) workgroup
C) both A and B
D) neither A nor B
Answer: A
Difficulty: Deeper
Question: 3d
Objective: Describe Ethernet terminology and standards.
AACSB: Applying Information Technology, Application of Knowledge
18) Physical layer standards govern ________.
A) signaling
B) physical connectors
C) both A and B
D) neither A nor B
Answer: C
Difficulty: Basic
Question: 4
Objective: Describe basic physical propagation concepts.
AACSB: Applying Information Technology, Application of Knowledge
19) Physical layer standards govern ________.
A) signaling
B) frames
C) packets
D) all of the above
Answer: A
Difficulty: Basic
Question: 4
Objective: Describe basic physical propagation concepts.
AACSB: Applying Information Technology, Application of Knowledge
20) In digital signaling, there is (are) ________ state(s).
A) one
B) only two
C) a small number of
D) an infinite number of
Answer: C
Difficulty: Basic
Question: 5a
Objective: Describe basic physical propagation concepts.
AACSB: Applying Information Technology
21) In binary signaling, there is (are) ________ state(s).
A) one
B) two
C) between three and ten
D) an infinite number of
Answer: B
Difficulty: Basic
Question: 5a
Objective: Describe basic physical propagation concepts.
AACSB: Applying Information Technology
22) To transmit three bits per clock cycle, you must have ________ states.
A) 3
B) 6
C) 8
D) 16
Answer: C
Difficulty: Deeper
Question: 5b
Objective: Describe basic physical propagation concepts.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
23) To transmit five bits per clock cycle, you must have ________ states.
A) 5
B) 16
C) 32
D) none of the above
Answer: C
Difficulty: Deeper
Question: 5c
Objective: Describe basic physical propagation concepts.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
24) A system with 16 states can transmit ________ bits per clock cycle
A) 3
B) 4
C) 5
D) none of the above
Answer: B
Difficulty: Deeper
Question: 5d
Objective: Describe basic physical propagation concepts.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
25) The 802.11ac Wi-Fi standard uses 256 states. How many bits can it send per clock cycle?
A) 8
B) 16
C) 32
D) none of the above
Answer: A
Difficulty: Deeper
Question: 5e
Objective: Describe basic physical propagation concepts.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
26) If you double the number of states, you can transmit ________ more bit(s) per clock cycle.
A) 1
B) 2
C) 4
D) none of the above
Answer: A
Difficulty: Basic
Question: 5f
Objective: Describe basic physical propagation concepts.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
27) Signal state is held constant in a clock cycle ________.
A) for energy efficiency
B) to make it easier for the receiver to sample the state
C) to emphasize differences between clock cycles
D) none of the above
Answer: B
Difficulty: Deeper
Question: 5g
Objective: Describe basic physical propagation concepts.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
28) How long (in milliseconds) is a clock cycle if I transmit 400 Mbps with four states?
A) 0.000005
B) 0.0025
C) 0.005
D) none of the above
Answer: A
Difficulty: Deeper
Question: 5h
Objective: Describe basic physical propagation concepts.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
29) What type of copper wiring is widely used in Ethernet?
A) optical fiber
B) 4-pair UTP
C) both A and B
D) neither A nor B
Answer: B
Difficulty: Basic
Question: 6a
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
30) How many wires are there is a UTP Ethernet cord?
A) 1
B) 2
C) 4
D) 8
Answer: D
Difficulty: Basic
Question: 6a
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology
31) In 4-pair UTP, what is twisted?
A) individual wires
B) pairs of wires
C) all eight wires
D) none of the above
Answer: B
Difficulty: Deeper
Question: 6b
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
32) 4-pair UTP terminates in a(n) ________ connector.
A) USB
B) RJ-45
C) SC
D) standard telephone
Answer: B
Difficulty: Basic
Question: 6c
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
33) Four-pair UTP uses ________ connectors.
A) universal
B) binary
C) ST or SC
D) none of the above
Answer: D
Difficulty: Deeper
Question: 6c
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
34) Optical fiber cords use two strands ________.
A) for reliability through redundancy
B) to form a complete electrical loop
C) to double the transmission speed
D) for full-duplex transmission
Answer: D
Difficulty: Deeper
Question: 6d
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
35) The ability to transmit in two directions simultaneously is ________.
A) parallel communication
B) full-duplex communication
C) both A and B
D) neither A nor B
Answer: B
Difficulty: Deeper
Question: 6d
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
36) The main benefit of parallel transmission over serial transmission is ________.
A) reliability
B) speed
C) both A and B
D) neither A nor B
Answer: B
Difficulty: Deeper
Question: 6e
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
37) What problem limits transmission distance in 4-pair UTP?
A) reflection at the two ends
B) heat conduction
C) radiation
D) none of the above
Answer: C
Difficulty: Basic
Question: 6f
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
38) UTP categories rate the ________ of UTP cabling.
A) quality
B) speed
C) quality-of-service performance
D) error performance
Answer: A
Difficulty: Basic
Question: 7a
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology
39) CAT 5e and CAT 6 wiring can carry Ethernet traffic 100 meters up to ________.
A) 10 Mbps
B) 100 Mbps
C) 1 Gbps
D) 10 Gbps
Answer: C
Difficulty: Deeper
Question: 7a
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
40) Which UTP quality levels can send signals at 10 gigabits per second?
A) category 6
B) category 6A
C) both A and B
D) neither A nor B
Answer: C
Difficulty: Deeper
Question: 7a
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
41) 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
Answer: B
Difficulty: Deeper
Question: 7a
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
42) For what specific purpose were the 2.5GBASE-T and 5GBASE-T standards developed?
A) general growth in demand for Ethernet speed
B) serving access points
C) to provide lower-cost service than 10G-BASE-T
D) none of the above
Answer: B
Difficulty: Basic
Question: 8
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
43) In optical fiber, light travels through the ________.
A) core
B) cladding
C) both A and B
Answer: A
Difficulty: Deeper
Question: 9a
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
44) Optical fiber cords typically have two fiber strands. This is done to allow ________.
A) redundancy
B) total redundancy
C) half-duplex operation
D) full-duplex operation
Answer: D
Difficulty: Basic
Question: 9b
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
45) The distance between two corresponding points in adjacent cycles is the ________.
A) frequency
B) wavelength
C) bandwidth
D) span
Answer: B
Difficulty: Basic
Question: 9c
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology
46) Which light wavelength dominates in LANs?
A) 850 nm
B) 1,310 nm
C) 1,550 nm
D) 1 Gbps
Answer: A
Difficulty: Basic
Question: 9d
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
47) The strength of a wave is its ________.
A) amplitude
B) frequency
C) wavelength
D) force
Answer: A
Difficulty: Basic
Question: 9e
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology
48) ________ occurs when the light energies of two pulses arrive at the far end at overlapping times.
A) Multimode transmission
B) Modal bandwidth
C) Modal dispersion
D) Modal interference
Answer: C
Difficulty: Deeper
Question: 10a
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
49) ________ describe light entering a fiber’s core at different angles.
A) Co-cycle waves
B) Harmonics
C) Divergences
D) Different modes
Answer: D
Difficulty: Basic
Question: 10b
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
50) Which core diameter is used in multimode fiber.
A) 50 microns
B) 8 microns
C) 50 mm
D) 8 mm
Answer: A
Difficulty: Deeper
Question: 10b
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
51) Modal dispersion limits transmission distance in ________.
A) multimode fiber
B) single-mode fiber
C) both A and B
D) neither A nor B
Answer: A
Difficulty: Deeper
Question: 10c
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
52) ________ fiber is being sold today.
A) OM2
B) OM4
C) both A and B
D) neither A nor B
Answer: B
Difficulty: Basic
Question: 11a
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology
53) If a physical link can use either 4-pair UTP, multimode fiber, or single-mode fiber, which should I use?
A) 4-pair UTP
B) multimode fiber
C) single-mode fiber
D) none of the above
Answer: A
Difficulty: Basic
Question: 11b
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
54) What is the quality designator for multimode optical fiber?
A) Cat
B) OM
C) both A and B
D) neither A nor B
Answer: B
Difficulty: Basic
Question: 11g
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
55) 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
Answer: C
Difficulty: Deeper
Question: 12b
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
56) Fiber that has a core diameter of 8.3 microns is ________.
A) multimode fiber
B) single-mode fiber
C) full duplex fiber
D) exceptionally fast
Answer: B
Difficulty: Basic
Question: 14a
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
57) The longest transmission distances are possible with ________.
A) USB
B) UTP
C) single-mode fiber
D) multimode fiber
Answer: C
Difficulty: Basic
Question: 14b
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
58) Which of the following is used most often in LANs for fiber transmission links?
A) modal bandwidth fiber
B) 1.550 nm fiber
C) single-mode fiber
D) multimode fiber
Answer: D
Difficulty: Basic
Question: 14b
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
59) Which of the following is used most often in LANs for fiber transmission links?
A) 850 nm multimode fiber
B) 850 nm single-mode fiber
C) 850 nm multimode-mode fiber
D) 1,550 nm single-mode fiber
Answer: A
Difficulty: Basic
Question: 14b
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
60) 850 nm multimode fiber is used in LANs ________.
A) to keep cost low
B) to have the longest transmission distances
C) both A and B
D) neither A nor B
Answer: A
Difficulty: Deeper
Question: 14d
Objective: Explain the technologies of 4-pair UTP and optical fiber.
AACSB: Applying Information Technology, Application of Knowledge
61) At what layer is the 100BASE-TX standard?
A) physical
B) data link
C) Internet
D) physical and data link
Answer: A
Difficulty: Deeper
Question: 15a
Objective: Design a physical Ethernet network based on traffic requirements.
AACSB: Applying Information Technology, Application of Knowledge
62) UTP and fiber distance limits are for ________.
A) physical links
B) data link
C) Internet routes
D) physical and data link
Answer: A
Difficulty: Deeper
Question: 15a
Objective: Design a physical Ethernet network based on traffic requirements.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
63) If you can span the distance between two switches with either a single optical fiber link or two UTP lengths with an intermediate switch, which should you choose?
A) single optical fiber link
B) two UTP cords with an intermediate switch
C) both are equally attractive
D) neither will work
Answer: A
Difficulty: Deeper
Question: 15c
Objective: Design a physical Ethernet network based on traffic requirements.
AACSB: Applying Information Technology, Application of Knowledge
64) To span the distance between two switches, why is adding an intermediate switch not an attractive choice?
A) latency
B) errors
C) speed restrictions
D) expense
Answer: D
Difficulty: Deeper
Question: 15e
Objective: Design a physical Ethernet network based on traffic requirements.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
65) A switch knows the entire data link between the source and destination hosts.
Answer: FALSE
Difficulty: Basic
Question: 16a
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Analytical Thinking
66) The switch knows the type of device it is forwarding a frame to.
Answer: FALSE
Difficulty: Deeper
Question: 16b
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Analytical Thinking
67) In Ethernet, switches are organized in a ________.
A) ring
B) mesh
C) hierarchy
D) any of the above
Answer: C
Difficulty: Basic
Question: 17a
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology
68) In large Ethernet networks, there can be ________ possible data links between two hosts.
A) 1
B) 2
C) 3
D) many
Answer: A
Difficulty: Basic
Question: 17b
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Application of Knowledge
69) Having only a single possible path between devices ________.
A) reduces switching cost
B) provides reliability
C) reduces errors
D) none of the above.
Answer: A
Difficulty: Deeper
Question: 18a
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
70) Ethernet became the dominant LAN technology because of ________.
A) low cost
B) high speed
C) link reliability
D) agility
Answer: A
Difficulty: Deeper
Question: 18b
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Application of Knowledge
71) EUI-48 addresses in expressed in hexadecimal notation if used by ________.
A) switches
B) routers
C) both A and B
D) neither A nor B
Answer: D
Difficulty: Deeper
Question: 19a
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
72) Which of the following letters may appear in EUI-48 addresses?
A) D
B) H
C) both A and B
D) neither A nor B
Answer: D
Difficulty: Basic
Question: 19b
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
73) What is 9 hex in binary?
A) 1000
B) 1001
C) 1010
D) 1111
Answer: B
Difficulty: Deeper
Question: 19d
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
74) What is F hex in binary?
A) 1001
B) 1010
C) 1111
D) none of the above
Answer: C
Difficulty: Basic
Question: 19e
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
75) What is binary 0010 in hex?
A) 1
B) 2
C) 3
D) none of the Above
Answer: B
Difficulty: Basic
Question: 19g
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
76) What is binary 0000 in hex?
A) 0
B) 1
C) 15
D) 16
Answer: A
Difficulty: Deeper
Question: 19h
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
77) What is binary 1111 in hex?
A) 10
B) 13
C) 14
D) 15
Answer: D
Difficulty: Basic
Question: 19i
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
78) The two tag frames provide information about ________.
A) transmission media
B) the length of Jumbo packets
C) priority
D) all of the above
Answer: C
Difficulty: Basic
Question: 20a
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Application of Knowledge
79) The PAD field is added by the ________ if the frame is too short without it.
A) sender
B) receiver
C) both A and B
D) neither A nor B
Answer: A
Difficulty: Deeper
Question: 20b
Objective: Explain Ethernet data link layer operation.
AACSB: Applying Information Technology, Application of Knowledge
80) To manage their Ethernet networks, companies rely on ________.
A) SNMP
B) HTTP
C) FTTH
D) none of the above
Answer: A
Difficulty: Basic
Question: 21a
Objective: Describe Ethernet management.
AACSB: Applying Information Technology, Application of Knowledge
81) All Ethernet switches are manageable.
Answer: FALSE
Difficulty: Basic
Question: 21c
Objective: Describe Ethernet management.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
82) Ethernet has reliability issues because of its ________.
A) too-simple switch operation
B) hierarchical organization
C) both A and B
D) neither A nor B
Answer: B
Difficulty: Basic
Question: 22a
Objective: Describe Ethernet management.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
83) RSTP ________.
A) can increase reliability
B) was created to break accidental loops
C) both A and B
D) neither A nor B
Answer: C
Difficulty: Basic
Question: 22b
Objective: Describe Ethernet management.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
84) Using RSTP to provide backup links in Ethernet ________.
A) is automatic
B) is simple
C) is challenging
D) is impossible
Answer: C
Difficulty: Basic
Question: 22c
Objective: Describe Ethernet management.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
85) Which of the following provides security in Ethernet?
A) RSTP
B) SNMP
C) VLANs
D) all of the above
Answer: C
Difficulty: Basic
Question: 23a
Objective: Describe Ethernet security.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
86) To prevent anyone from simply walking up to a corporate switch and plugging their computer into its Ethernet port, companies can use ________.
A) 802.1X
B) SNMP
C) VLANs
D) 802.1AE
Answer: A
Difficulty: Basic
Question: 24a
Objective: Describe Ethernet security.
AACSB: Applying Information Technology, Application of Knowledge
87) 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
Answer: C
Difficulty: Basic
Question: 24b
Objective: Describe Ethernet security.
AACSB: Applying Information Technology, Application of Knowledge
88) To prevent an unauthorized user from sending supervisory commands to switches, companies use ________.
A) 802.1X
B) SNMP
C) VLANs
D) 802.1AE
Answer: D
Difficulty: Basic
Question: 25
Objective: Describe Ethernet security.
AACSB: Applying Information Technology, Application of Knowledge
89) The ARP cache gives the ________ of a router the host will send a packet to.
A) IP address
B) EUI-48 address
C) MAC address
D) host name
Answer: B
Difficulty: Deeper
Question: 26a
Objective: Describe Ethernet security.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
90) After an ARP cache poisoning attack, the ARP cache gives the ________.
A) IP address of the router the user wishes to send to
B) EUI-48 address of the router the user wishes to send to
C) IP address of the router the MITM attacker
D) EUI-48 address of the router the MITM attacker
Answer: D
Difficulty: Deeper
Question: 26b
Objective: Describe Ethernet security.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
91) ARP cache poisoning is ________.
A) a DoS attack
B) a DDoS attack
C) an illegal login attack
D) a man-in-the middle attack
Answer: D
Difficulty: Basic
Question: 26c
Objective: Describe Ethernet security.
AACSB: Applying Information Technology, Analytical Thinking, Application of Knowledge
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