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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

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

3. What is the maximum T1 transmission speed?

  • • 56 kbps
  • • 128 kbps
  • • 1.544 Mbps
  • • 2.4 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

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

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

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

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

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


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

11. What feature allows network devices to be scalable?

  • • a fixed number of interfaces
  • • ease of repair
  • • modularity
  • • low maintenance requirements
  • • low cost

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

13. Which network utility helps determine the location of network problems and identifies routers that packets travel across?

  • • ping
  • • ipconfig
  • • traceroute
  • • ixp

14. What interconnects the Internet backbone?

  • • gateway routers
  • • IXPs
  • • POPs
  • • satellite dishes

15. What units are used to measure Internet bandwidth?

  • • bits per second
  • • bytes per second
  • • hertz
  • • megabytes per second
  • • packets 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

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

18. When did the Internet become available for use by businesses and consumers?

  • • 1979
  • • 1984
  • • 1991
  • • 1999
  • • 2000

19. What was the original purpose of the Internet?

  • • voice communication
  • • marketing
  • • research
  • • commerce

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

 

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