Question

QUESTION 31

1. In Classic Three-Layer Hierarchical Model, the ___________ layer connects network services to the lower layer and implements policies regarding security, traffic loading, and routing.

   		Access
   		Distribution
   		Core
   		User

2. QUESTION 32

3. Which of the following is a RFC1918 address?

   		172.168.1.1
   		192.168.255.1
   		192.16.1.1

4. QUESTION 33

5. In modern network design, a _________ has become a method to subdivide physical switch-based LANs into many logical LANs.

   		STP
   		VLAN
   		DTP
   		VTP

6. 		"Test, optimize, and document design", "Monitor and optimize network performance",  "Develop logical design"
   		"Develop logical design",  "Monitor and optimize network performance" , "Test, optimize, and document design"
   		"Develop logical design", "Test, optimize, and document design", "Monitor and optimize network performance"
   		"Monitor and optimize network performance", "Develop logical design", "Test, optimize, and document design"

7. QUESTION 35

8. Performance can be expressed as a percent uptime per year, month, week, day, or hour, compared to the total time in that period.

   True

   False

9. QUESTION 36

10. Throughput is the data carrying capacity of a circuit.

    True

    False

11. QUESTION 37

12. Route summarization is the method of including many subnets in a few routing entries. It helps conserve routers memory and bandwidth when updating network routes.   

    True

    False

13. QUESTION 38

14. When characterizing addressing, any address oddities, such as Discontiguous Subnets, should be noted down for analysis.  

    True

    False

15. QUESTION 39

16. _________ provides the following management services:

    • Detect, isolate, diagnose, and correct problems
    • Report status to end users and managers
    • Track trends related to problems

    		Fault management
    		Configuration management
    		Accounting management
    		Performance management

17. QUESTION 40

18. The network should not fail more than once every 100 days and it should be fixed within 5 hours. Which of the following is the availability of this network?

    	A.	99.79%
    	B.	99.89%
    	C.	99.69%
    	D.	99.99%

Answer 1

QUESTION 31

In Classic Three-Layer Hierarchical Model, the ___________ layer connects network services to the lower layer and implements policies regarding security, traffic loading, and routing.

Answer : Distribution Layer

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QUESTION 32

Answer : RFC1918 has 3 set of address ranges
i)   10.0.0.0-10.255.255.255 --> 8 bits Mask, 24 bits host ID
ii) 172.16.0.0 – 172.31.255.255 --> 12 bits mask, 20 bits host ID
iii) 192.168.0.0 – 192.168.255.255 --> 16 bits mask, 16 bits host ID

172.168.1.1 - No
192.168.255.1 - Yes
192.16.1.1 - No

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QUESTION 33

Answer :: Virtual Local Area Network(VLAN) is a way of logical division of the LAN device into a network segment.

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QUESTION 35

Answer :: False. Availability is expressed as a percent uptime per year, month, week, day, or hour, compared to the total time in that period.

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QUESTION 36

Answer :: True . Throughput is the amount of data or number of packets of data which can be delivered in a given time frame.

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QUESTION 37

Answer:: True. Route summarization is a method in which one summary route is created that represent multiple subnets. This helps in saving memory: routing tables are smaller hence reducing memory requirements.

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QUESTION 38

When characterizing addressing, any address oddities, such as Discontiguous Subnets, should be noted down for analysis.

Answer :: True

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QUESTION 39

Answer :: Fault management provides the management services such as:
Detect, isolate, diagnose, and correct problems
Report status to end users and managers
Track trends related to problems

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