CCNA Discovery 2 Chapter 1 V4.1 Answers

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.

CCNA Discovery 2 thumb CCNA Discovery 2 Chapter 1 V4.1 Answers

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.

DsmbISP Chapter 1 thumb CCNA Discovery 2 Chapter 1 V4.1 Answers

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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