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
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