1. Which network support services team is responsible for testing a new customer connection and for monitoring the ongoing operation of the link?
- customer service
- network operations
- help desk
- on-site installation
2. Which two things can be determined by using the ping command? (Choose two.)
- the number of routers between the source and destination device
- whether or not the destination device is reachable through the network
- 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
- the average time it takes each router in the path between source and destination to respond
Explanation: A ping command provides feedback on the time between when an echo request was sent to a remote host and when the echo reply was received. This can be a measure of network performance. A successful ping also indicates that the destination host was reachable through the network.
3. What are three main types of high-bandwidth connection options used by medium- to large-sized businesses? (Choose three.)
- DSL
- metro Ethernet
- T1
- cable modem
- Ethernet
- T3
4. 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# nslookup 34.0.0.4
- Router# ping 34.0.0.4
- Router# telnet 34.0.0.4
- Router# traceroute 34.0.0.4
5. Which network support services team identifies whether the client site has existing network hardware and circuits installed?
- customer service
- help desk
- planning and provisioning
- network operations
6. What units are used to measure Internet bandwidth?
- bytes per second
- hertz
- megabytes per second
- bits per second
- packets per second
7. What is the purpose of an RFC?
- to provide the connection point for multiple ISPs to the Internet
- to provide data communication services to ISP customers
- to document the development and approval of an Internet standard
- to connect a business to an ISP
- to monitor network performance and connection status of ISP clients
8. What is the maximum T1 transmission speed?
- 56 kbps
- 128 kbps
- 2.4 Mbps
- 1.544 Mbps
9. When did the Internet become available for use by businesses and consumers?
- 1979
- 1984
- 1999
- 2000
- 1991
10. What was the original purpose of the Internet?
- voice communication
- commerce
- marketing
- research
11. What three support service teams are commonly found within an ISP? (Choose three.)
- help desk
- network operations center
- computer support
- application readiness
- planning and provisioning
- implementation and documentation
12. 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
13. What feature allows network devices to be scalable?
- a fixed number of interfaces
- low maintenance requirements
- low cost
- ease of repair
- modularity
14. 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
- Tier 1 ISP services
- equipment colocation
15. Which network utility helps determine the location of network problems and identifies routers that packets travel across?
- ping
- ipconfig
- traceroute
- ixp
16. Which of the following start the test of destination reachability?
- echo request issued by destination
- echo reply issued by destination
- echo request issued by source
- echo reply issued by source
17. 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
18. 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
19. 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 standards for cabling and wiring for local Ethernet networks
- the specifications and rules for how devices communicate over an IP network
20. What interconnects the Internet backbone?
- gateway routers
- IXPs
- POPs
- satellite dishes