1. 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
2. Which network utility helps determine the location of
network problems and identifies routers that packets travel across?
ping
ipconfig
tracert
netstat
nslookup
3. 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
4. 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
5. When does a host device issue an ICMP echo request?
to initiate a ping to determine if a destination address is
reachable
to respond to a DNS name query
to broadcast its identity to its locally connected
neighbors
to request the MAC address of a destination IP address
6. Refer to the exhibit. Host A cannot connect to the web
server at 192.168.100.2. Based on the output of the tracert command, which
device is most likely causing the problem?
Router A
Router B
Router C
Router D
Router E
Router F
7. What interconnects the Internet backbone?
MDFs
IXPs
POPs
satellite dishes
8. 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
9. What was the original purpose of the Internet?
voice communication
marketing
research
commerce
10. 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
11. 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
12. 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 collocation
Tier 1 ISP services
13. What units are used to measure Internet bandwidth?
bits per second
bytes per second
hertz
megabytes per second
packets per second
14. 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
15. 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 indicate a contract that a customer signs when
purchasing co-location services
to document agreements between an ISP and the customer
16. Refer to the exhibit. A host is having problems
maintaining a connection to a server at 192.168.100.2. Which statement best
describes the output of the ping command?
The server is shut down.
The server has no route back to the host.
Two routers along the path are not responding to pings.
Some packets made it to the destination.
Ping services are not supported on the destination.
17. What is the maximum T1 transmission speed?
56 kbps
128 kbps
1.544 Mbps
2.4 Mbps
18. 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
19. What feature enables network devices to be scalable?
a fixed number of interfaces
ease of repair
modularity
low maintenance requirements
low cost
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