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CCNA1 v6.0 Chapter 4 Exam Online Assessment

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CCNA1 v6.0 Chapter 4 Exam

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Question 1 of 24

1. Question
2 points
What are two reasons for physical layer protocols to use frame encoding techniques? (Choose two.)
- to reduce the number of collisions on the media
- to distinguish data bits from control bits
- to provide better media error correction
- to identify where the frame starts and ends
- to increase the media throughput
Correct

Incorrect
Question 2 of 24

2. Question
1 points
What is indicated by the term throughput?
- the guaranteed data transfer rate offered by an ISP
- the capacity of a particular medium to carry data
- the measure of the usable data transferred across the media
- the measure of the bits transferred across the media over a given period of time
- the time it takes for a message to get from sender to receiver
Correct

Incorrect
Question 3 of 24

3. Question
2 points
A network administrator notices that some newly installed Ethernet cabling is carrying corrupt and distorted data signals. The new cabling was installed in the ceiling close to fluorescent lights and electrical equipment. Which two factors may interfere with the copper cabling and result in signal distortion and data corruption? (Choose two.)
- EMI
- crosstalk
- RFI
- signal attenuation
- extended length of cabling
Correct

Incorrect
Question 4 of 24

4. Question
1 points
Which characteristic describes crosstalk?
- the distortion of the network signal from fluorescent lighting
- the distortion of the transmitted messages from signals carried in adjacent wires
- the weakening of the network signal over long cable lengths
- the loss of wireless signal over excessive distance from the access point
Correct

Incorrect
Question 5 of 24

5. Question
1 points
What technique is used with UTP cable to help protect against signal interference from crosstalk?
- twisting the wires together into pairs
- wrapping a foil shield around the wire pairs
- encasing the cables within a flexible plastic sheath
- terminating the cable with special grounded connectors
Correct

Incorrect
Question 6 of 24

6. Question
1 points
Refer to the exhibit. The PC is connected to the console port of the switch. All the other connections are made through FastEthernet links. Which types of UTP cables can be used to connect the devices?
- 1 – rollover, 2 – crossover, 3 – straight-through
- 1 – rollover, 2 – straight-through, 3 – crossover
- 1 – crossover, 2 – straight-through, 3 – rollover
- 1 – crossover, 2 – rollover, 3 – straight-through
Correct

Incorrect
Question 7 of 24

7. Question
1 points
Refer to the exhibit. What is wrong with the displayed termination?
- The woven copper braid should not have been removed.
- The wrong type of connector is being used.
- The untwisted length of each wire is too long.
- The wires are too thick for the connector that is used.
Correct

Incorrect
Question 8 of 24

8. Question
1 points
Which type of connector does a network interface card use?
- DIN
- PS-2
- RJ-11
- RJ-45
Correct

Incorrect
Question 9 of 24

9. Question
1 points
What is one advantage of using fiber optic cabling rather than copper cabling?
- It is usually cheaper than copper cabling.
- It is able to be installed around sharp bends.
- It is easier to terminate and install than copper cabling.
- It is able to carry signals much farther than copper cabling.
Correct

Incorrect
Question 10 of 24

10. Question
1 points
Why are two strands of fiber used for a single fiber optic connection?
- The two strands allow the data to travel for longer distances without degrading.
- They prevent crosstalk from causing interference on the connection.
- They increase the speed at which the data can travel.
- They allow for full-duplex connectivity.
Correct

Incorrect
Question 11 of 24

11. Question
3 points
A network administrator is designing the layout of a new wireless network. Which three areas of concern should be accounted for when building a wireless network? (Choose three.)
- mobility options
- security
- interference
- coverage area
- extensive cabling
- packet collision
Correct

Incorrect
Question 12 of 24

12. Question
1 points
Which layer of the OSI model is responsible for specifying the encapsulation method used for specific types of media?
- application
- transport
- data link
- physical
Correct

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Question 13 of 24

13. Question
2 points
What are two services performed by the data link layer of the OSI model? (Choose two.)
- It encrypts data packets.
- It determines the path to forward packets.
- It accepts Layer 3 packets and encapsulates them into frames.
- It provides media access control and performs error detection.
- It monitors the Layer 2 communication by building a MAC address table.
Correct

Incorrect
Question 14 of 24

14. Question
1 points
What is true concerning physical and logical topologies?
- The logical topology is always the same as the physical topology.
- Physical topologies are concerned with how a network transfers frames.
- Physical topologies display the IP addressing scheme of each network.
- Logical topologies refer to how a network transfers data between devices.
Correct

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Question 15 of 24

15. Question
1 points
Which method of data transfer allows information to be sent and received at the same time?
- full duplex
- half duplex
- multiplex
- simplex
Correct

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Question 16 of 24

16. Question
1 points
Which statement describes an extended star topology?
- End devices connect to a central intermediate device, which in turn connects to other central intermediate devices.
- End devices are connected together by a bus and each bus connects to a central intermediate device.
- Each end system is connected to its respective neighbor via an intermediate device.
- All end and intermediate devices are connected in a chain to each other.
Correct

Incorrect
Question 17 of 24

17. Question
1 points
Refer to the exhibit. Which statement describes the media access control methods that are used by the networks in the exhibit?
- All three networks use CSMA/CA
- None of the networks require media access control.
- Network 1 uses CSMA/CD and Network 3 uses CSMA/CA.
- Network 1 uses CSMA/CA and Network 2 uses CSMA/CD.
- Network 2 uses CSMA/CA and Network 3 uses CSMA/CD.
Correct

Incorrect
Question 18 of 24

18. Question
1 points
What is contained in the trailer of a data-link frame?
- logical address
- physical address
- data
- error detection
Correct

Incorrect
Question 19 of 24

19. Question
1 points
As data travels on the media in a stream of 1s and 0s how does a receiving node identify the beginning and end of a frame?
- The transmitting node inserts start and stop bits into the frame.
- The transmitting node sends a beacon to notify that a data frame is attached.
- The receiving node identifies the beginning of a frame by seeing a physical address.
- The transmitting node sends an out-of-band signal to the receiver about the beginning of the frame.
Correct

Incorrect
Question 20 of 24

20. Question
1 points
What is the function of the CRC value that is found in the FCS field of a frame?
- to verify the integrity of the received frame
- to verify the physical address in the frame
- to verify the logical address in the frame
- to compute the checksum header for the data field in the frame
Correct

Incorrect
Question 21 of 24

21. Question
1 points
Fill in the blank.
- The term (bandwidth, BANDWIDTH) indicates the capacity of a medium to carry data and it is typically measured in kilobits per second (kb/s) or megabits per second (Mb/s).
Correct

Incorrect
Question 22 of 24

22. Question
1 points
Fill in the blank.
- What acronym is used to reference the data link sublayer that identifies the network layer protocol encapsulated in the frame? (LLC, llc)
Correct

Incorrect
Question 23 of 24

23. Question
1 points
Fill in the blank.
- A physical topology that is a variation or combination of a point-to-point, hub and spoke, or mesh topology is commonly known as a (hybrid, HYBRID) topology.
Correct

Incorrect
Question 24 of 24

24. Question
6 points
Match the characteristics to the correct type of fiber. (Not all options are used.)
Sort elements
- 1. LED as light source
- 2. several paths of light into the fiber
- 3. generally used with LANs
- 4. only one ray of light into the fiber
- 5. generally used for campus backbone
- 6. laser as light source
- Multimode Fiber
- Multimode Fiber
- Multimode Fiber
- Single-mode Fiber
- Single-mode Fiber
- Single-mode Fiber
Correct

Incorrect

[tabs][tab title=”CCNA1 v6″]
CCNA 1 v6 – Pretest Exam
CCNA 1 v6 – Chapter 1
CCNA 1 v6 – Chapter 2
CCNA 1 v6 – Chapter 3
CCNA 1 v6 – Chapter 4
CCNA 1 v6 – Chapter 5
CCNA 1 v6 – Chapter 6
CCNA 1 v6 – Chapter 7
CCNA 1 v6 – Chapter 8
CCNA 1 v6 – Chapter 9
CCNA 1 v6 – Chapter 10
CCNA 1 v6 – Chapter 11
CCNA 1 v6 – Practice Final
CCNA 1 v6 – Final Exam[/tab]
[tab title=”CCNA2 v6″]
CCNA 2 v6 – Pretest Exam
CCNA 2 v6 – Chapter 1
CCNA 2 v6 – Chapter 2
CCNA 2 v6 – Chapter 3
CCNA 2 v6 – Chapter 4
CCNA 2 v6 – Chapter 5
CCNA 2 v6 – Chapter 6
CCNA 2 v6 – Chapter 7
CCNA 2 v6 – Chapter 8
CCNA 2 v6 – Chapter 9
CCNA 2 v6 – Chapter 10
CCNA 2 v6 – Final Exam

CCNA 2 v6 – Final Exam A

CCNA 2 v6 – Final Exam B

CCNA 2 v6 – Final Exam C

[/tab]
[tab title=”CCNA3 v6″]

CCNA 3 v6 – Pretest Exam
CCNA 3 v6 – Chapter 1
CCNA 3 v6 – Chapter 2
CCNA 3 v6 – Chapter 3
CCNA 3 v6 – Chapter 4
CCNA 3 v6 – Chapter 5
CCNA 3 v6 – Chapter 6
CCNA 3 v6 – Chapter 7
CCNA 3 v6 – Chapter 8
CCNA 3 v6 – Chapter 9
CCNA 3 v6 – Chapter 10
CCNA 3 v6 – Practice Final
CCNA 3 v6 – Final Exam A
CCNA 3 v6 – Final Exam B
CCNA 3 v6 – Final Exam C

[/tab]
[tab title=”CCNA4 v6″]

CCNA 4 v6 – Pretest Exam
CCNA 4 v6 – Chapter 1
CCNA 4 v6 – Chapter 2
CCNA 4 v6 – Chapter 3
CCNA 4 v6 – Chapter 4
CCNA 4 v6 – Chapter 5
CCNA 4 v6 – Chapter 6
CCNA 4 v6 – Chapter 7
CCNA 4 v6 – Chapter 8
CCNA 4 v6 – Practice Final
CCNA 4 v6 – Final Exam A
CCNA 4 v6 – Final Exam B
CCNA 4 v6 – Final Exam C

[/tab]

[tab title=”Itessentials v6.0″]

[/tab]

[/tabs]

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