DsmbISP Chapter 1 - (Version 4.1)

1. When does a host device issue an ICMP echo request?
*to initiate a ping to determine if a destination address is reachable

2. What is the maximum T1 transmission speed?
*1.544 Mbps

3. At which point do individuals and small businesses connect directly to the ISP network to obtain Internet access?
*at a POP

4. Which network support services team is responsible for testing a new customer connection and for monitoring the ongoing operation of the link?
*network operations

5. Which network support services team identifies whether the client site has existing network hardware and circuits installed?
*planning and provisioning

6. What are three main types of high-bandwidth connection options used by medium- to large-sized businesses? (Choose three.)
*metro Ethernet

7. What feature enables network devices to be scalable?

8. Which statement describes a function of a Tier 1 ISP?
*peers with other similarly sized ISPs to form the global Internet backbone

9. Which two things can be determined by using the ping command? (Choose two.)
*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

10. 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?
*equipment collocation

11. What was the original purpose of the Internet?

12. What is the purpose of an RFC?
*to document the development and approval of an Internet standard

13. What units are used to measure Internet bandwidth?
*bits per second

14. What three support service teams are commonly found within an ISP? (Choose three.)
*help desk
*network operations center
*planning and provisioning

15. 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

16. What interconnects the Internet backbone?

17. Refer to the exhibit. A host is having problems maintaining a connection to a server at Which statement best describes the output of the ping command?
*Some packets made it to the destination.

18. Refer to the exhibit. Host A cannot connect to the web server at Based on the output of the tracert command, which device is most likely causing the problem?
*Router F

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


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