Kamis, 04 November 2010

CCNA Discovery 2 Module 1 Exam Answers Version 4.0

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1.    Which two things can be determined by using the ping command? (Choose two.)
• the number of routers between the source and destination device
• the IP address of the router nearest the destination device
• the average time it takes a packet to reach the destination and for the response to return to the source
• whether or not the destination device is reachable through the network
• the average time it takes each router in the path between source and destination to respond
Jawab: 
·         the average time it takes a packet to reach the destination and for the response to return to the source
·         whether or not the destination device is reachable through the network
2.   What are three main types of high-bandwidth connection options used by medium- to large-sized businesses? (Choose three.)
• DSL
• cable modem
• Ethernet
• metro Ethernet
• T1
• T3
Jawab:

3.      What is the maximum T1 transmission speed?
• 56 kbps
• 128 kbps
• 1.544 Mbps
• 2.4 Mbps
Jawab:
1.544 Mbps

4.   Which of the following start the test of destination reachability?
• echo request issued by source
• echo reply issued by source
• echo request issued by destination
• echo reply issued by destination
Jawab:
echo request issued by destination 

5.   Which statement describes a function of a Tier 1 ISP?
• peers with other similarly sized ISPs to form the global Internet backbone
• uses the services of Tier 3 ISPs to connect to the global Internet backbone
• pays Tier 2 ISPs for transit services to connect across continents
• limits the offered services to small geographic areas
Jawab:
     peers with other similarly sized ISPs to form the global Internet backbone
 
6.    At which point do individuals and small businesses connect directly to the ISP network to obtain Internet access?
• at a POP
• at an IXP
• at a Metro Ethernet link
• on the ISP extranet
Jawab:
at a POP

7.   What information is contained in the numbered RFCs maintained by the IETF?
• the rules for acceptable use of websites and e-mail
• the descriptions of various hardware components that connect to the Internet
• the specifications and rules for how devices communicate over an IP network
• the standards for cabling and wiring for local Ethernet networks
Jawab:
the specifications and rules for how devices communicate over an IP network

8.   Which network support services team is responsible for testing a new customer connection and for monitoring the ongoing operation of the link?"
• customer service
• help desk
• network operations
• on-site installation
Jawab:
network operations

9.  Which network support services team identifies whether the client site has existing network hardware and circuits installed?
• customer service
• help desk
• network operations
• planning and provisioning
Jawab:
planning and provisioning

10.  Which ISP network support systems team will typically contact the customer once a new circuit is ready and guide the customer in setting up passwords and other account information?
• help desk
• customer service
• network operations center
• on-site installation team
• planning and provisioning
Jawab:
help desk 

11.  What feature allows network devices to be scalable?
• a fixed number of interfaces
• ease of repair
• modularity
• low maintenance requirements
• low cost
Jawab:
modularity 

12.  Which command generated this output?
• 1 12.0.0.2 4 msec 4 msec 4 msec
• 2 23.0.0.3 20 msec 16 msec 16 msec
• 3 34.0.0.4 16 msec 18 msec 16 msec
• Router# traceroute 34.0.0.4
• Router# nslookup 34.0.0.4
• Router# ping 34.0.0.4
• Router# telnet 34.0.0.4
Jawab:
Router# traceroute 34.0.0.4

13.   Which network utility helps determine the location of network problems and identifies routers that packets travel across?
• ping
• ipconfig
• traceroute
• ixp
Jawab:
traceroute 

14.  What interconnects the Internet backbone?
• gateway routers
• IXPs
• POPs
• satellite dishes
Jawab:
IXPs

15.   What units are used to measure Internet bandwidth?
• bits per second
• bytes per second
• hertz
• megabytes per second
• packets per second
jawab:
bits per second

16.  The IT manager of a medium-sized business wishes to house the company-owned web servers in a facility that offers round-the-clock controlled access, redundant power, and high-bandwidth Internet access. Which ISP service will fulfill this need?
• web hosting
• planning and provisioning
• application hosting
• equipment colocation
• Tier 1 ISP services
Jawab:
equipment colocation

17.  What is the purpose of an RFC?
• to provide the connection point for multiple ISPs to the Internet
• to document the development and approval of an Internet standard
• to connect a business to an ISP
• to provide data communication services to ISP customers
• to monitor network performance and connection status of ISP clients
Jawab:
to document the development and approval of an Internet standard

18.  When did the Internet become available for use by businesses and consumers?
• 1979
• 1984
• 1991
• 1999
• 2000
Jawab:
1991

19.   What was the original purpose of the Internet?
• voice communication
• marketing
• research
• commerce
Jawab:
Research

20.  What three support service teams are commonly found within an ISP? (Choose three.)
• help desk
• computer support
• application readiness
• network operations center
• planning and provisioning
• implementation and documentation
      Jawab:
·         help desk
·         network operations center
·         planning and provisioning

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