ENetwork Chapter 8 - CCNA Exploration (Version 4.0)

Exam Viewer - ENetwork Chapter 8 - CCNA Exploration (Version 4.0) 
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Below you will find the assessment items as presented on the exam as well as the scoring rules associated with the item.

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1 Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication? 
 
 Presentation  
 Transport  
 Data Link  
 =Physical  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 4
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.1.1 Physical Layer - Purpose 
 

2 An installed fiber run can be checked for faults, integrity, and the performance of the media by using what device? 
 
 light injector  
 =OTDR  
 TDR  
 multimeter  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 2
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.8 Media Connectors 
 

3 Which characteristics describe fiber optic cable? (Choose two.) 
 
 =It is not affected by EMI or RFI.  
 Each pair of cables is wrapped in metallic foil.  
 It combines the technique of cancellation, shielding and twisting to protect data.  
 It has a maximum speed of 100 Mbps.  
 =It is the most expensive type of LAN cabling.  
 

 

Scoring Rule For:  correctness of response 
Option 1 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required.  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.6 Fiber Media 
 

4 When is a straight-through cable used in a network? 
 
 when connecting a router through the console port  
 when connecting one switch to another switch  
 =when connecting a host to a switch  
 when connecting a router to another router  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 3
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.3 Unshielded Twisted Pair (UTP) Cable 
 

5

Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet connection between Host A and Host B? 
 
 coax cable  
 rollover cable  
 =crossover cable  
 straight-through cable  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 3
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.3 Unshielded Twisted Pair (UTP) Cable 
 

6 Which method of signal transmission uses radio waves to carry signals? 
 
 electrical  
 optical  
 =wireless  
 acoustic  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 3
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.7 Wireless Media 
 

7 In most business LANs, which connector is used with twisted-pair networking cable? 
 
 BNC  
 RJ-11  
 =RJ-45  
 Type F  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 3
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.8 Media Connectors 
 

8 Which of the following is a characteristic of single-mode fiber-optic cable? 
 
 generally uses LEDs as the light source  
 relatively larger core with multiple light paths  
 less expensive than multimode  
 =generally uses lasers as the light source  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 4
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.6 Fiber Media 
 

9 Which type of cable run is most often associated with fiber-optic cable? 
 
 =backbone cable  
 horizontal cable  
 patch cable  
 work area cable  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 1
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.6 Fiber Media 
 

10 What are three measures of data transfer? (Choose three.) 
 
 =goodput  
 frequency  
 amplitude  
 =throughput  
 crosstalk  
 =bandwidth  
 

 

Scoring Rule For:  correctness of response 
Option 1, Option 4, and Option 6 are correct.
1 point for each correct option.
0 points if more options are selected than required.  
Max Value = 3 
 

This item references content from the following areas: 
CCNA Exploration 
8.2.3 Data Carrying Capacity 
 

11 With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs? 
 
 =the magnetic field around the adjacent pairs of wire  
 the use of braided wire to shield the adjacent wire pairs  
 the reflection of the electrical wave back from the far end of the cable  
 the collision caused by two nodes trying to use the media simultaneously  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 1
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.3 Unshielded Twisted Pair (UTP) Cable 
 

12 What is a primary role of the Physical layer in transmitting data on the network? 
 
 =create the signals that represent the bits in each frame on to the media  
 provide physical addressing to the devices  
 determine the path packets take through the network  
 control data access to the media  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 1
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.1.1 Physical Layer - Purpose 
 

13 In LAN installations where potential electrical hazards or electromagnetic interference may be present, what type of media is recommended for backbone cabling? 
 
 coax  
 =fiber  
 Cat5e UTP  
 Cat6 UTP  
 STP  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 2
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.6 Fiber Media 
 

14 What is a possible effect of improperly applying a connector to a network cable? 
 
 Data will be forwarded to the wrong node.  
 =Data transmitted through that cable may experience signal loss.  
 An improper signaling method will be implemented for data transmitted on that cable.  
 The encoding method for data sent on that cable will change to compensate for the improper connection.  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 2
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.8 Media Connectors 
 

15 Which fiber connector supports full duplex Ethernet? 
 
 

 
 

 
 

 
 

 
 

 

Scoring Rule For:  correctness of response 
2 points for Option 3
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.8 Media Connectors 
 

16 What is considered a benefit of wireless as a media choice? 
 
 =more host mobility  
 lower security risks  
 reduced susceptibility to interference  
 less impact of the surroundings on the effective coverage area  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 1
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.7 Wireless Media 
 

17 What characteristic of UTP cable helps reduce the effects of interference? 
 
 the metal braiding in the shielding  
 the reflective cladding around core  
 =the twisting of the wires in the cable  
 the insulating material in the outer jacket  
 

 

Scoring Rule For:  correctness of response 
2 points for Option 3
0 points for any other option  
Max Value = 2 
 

This item references content from the following areas: 
CCNA Exploration 
8.3.3 Unshielded Twisted Pair (UTP) Cable 
 

  
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