Twentythree Zone

Dsmbisp chapter 1

1
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

Scoring Rule For:  correctness of response
2 points for Option 1
0 points for any other option
Max Value = 2


2
What is the maximum T1 transmission speed?
56 kbps
128 kbps
1.544 Mbps
2.4 Mbps

Scoring Rule For:  correctness of response
2 points for Option 3
0 points for any other option
Max Value = 2


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

Scoring Rule For:  correctness of response
2 points for Option 1
0 points for any other option
Max Value = 2


4
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

Scoring Rule For:  correctness of response
2 points for Option 3
0 points for any other option
Max Value = 2


5
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

Scoring Rule For:  correctness of response
2 points for Option 4
0 points for any other option
Max Value = 2


6
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




Scoring Rule For:  correctness of response
Option 4, Option 5, and Option 6 are correct.
1 point for each correct option.
0 points if more options are selected than required.
Max Value = 3


7
What feature enables network devices to be scalable?
a fixed number of interfaces
ease of repair
modularity
low maintenance requirements
low cost

Scoring Rule For:  correctness of response
2 points for Option 3
0 points for any other option
Max Value = 2


8
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

Scoring Rule For:  correctness of response
2 points for Option 1
0 points for any other option
Max Value = 2


9
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

Scoring Rule For:  correctness of response
Option 3 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required.
Max Value = 2


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?
web hosting
planning and provisioning
application hosting
equipment collocation
Tier 1 ISP services

Scoring Rule For:  correctness of response
2 points for Option 4
0 points for any other option
Max Value = 2


11
What was the original purpose of the Internet?
voice communication
marketing
research
commerce

Scoring Rule For:  correctness of response
2 points for Option 3
0 points for any other option
Max Value = 2


12
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

Scoring Rule For:  correctness of response
2 points for Option 2
0 points for any other option
Max Value = 2


13
What units are used to measure Internet bandwidth?
bits per second
bytes per second
hertz
megabytes per second
packets per second

Scoring Rule For:  correctness of response
2 points for Option 1
0 points for any other option
Max Value = 2


14
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

Scoring Rule For:  correctness of response
Option 1, Option 4, and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required.
Max Value = 3


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
customer service
network operations center
on-site installation team
planning and provisioning

Scoring Rule For:  correctness of response
2 points for Option 1
0 points for any other option
Max Value = 2


16
What interconnects the Internet backbone?
MDFs
IXPs
POPs
satellite dishes

Scoring Rule For:  correctness of response
2 points for Option 2
0 points for any other option
Max Value = 2


17



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.

Scoring Rule For:  correctness of response
2 points for Option 4
0 points for any other option
Max Value = 2


18



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

Scoring Rule For:  correctness of response
2 points for Option 6
0 points for any other option
Max Value = 2


19
Which network utility helps determine the location of network problems and identifies routers that packets travel across?
ping
ipconfig
tracert
netstat
nslookup

Scoring Rule For:  correctness of response
2 points for Option 3
0 points for any other option
Max Value = 2

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