CCNA Discovery 2 Module 1, 2 dan 3 Exam Answers Version 4.0

CCNA Discovery 2 Module 1 Exam Answers Version 4.0

1. Which two things can be determined by using the ping command? (Choose two)
• 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

2. What are three main types of high-bandwidth connection options used by medium- to large-sized businesses? (Choose three.)
• metro Ethernet
• T1
• T3

3. What is the maximum T1 transmission speed?
• 1.544 Mbpsz

4. Which of the following start the test of destination reachability?
• echo request issued by source

5. Which statement describes a function of a Tier 1 ISP?
• peers with other similarly sized ISPs to form the global Internet backbone

6. At which point do individuals and small businesses connect directly to the ISP network to obtain Internet access?
• at a POP

7. What information is contained in the numbered RFCs maintained by the IETF?
• the standards for cabling and wiring for local Ethernet networks

8. Which network support services team is responsible for testing a new customer connection and for monitoring the ongoing operation of the link?”
• network operations

9. Which network support services team identifies whether the client site has existing network hardware and circuits installed?
• planning and provisioning

10. 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

11. What feature allows network devices to be scalable?
• a fixed number of interfaces

12. Which command generated this output?
Router# telnet

13. Which network utility helps determine the location of network problems and identifies routers that packets travel across?
• traceroute

14. What interconnects the Internet backbone?
• IXPs

15. What units are used to measure Internet bandwidth?
• bytes per second

16. 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?
• equipment colocation

17. What is the purpozse of an RFC?
• to provide the connection point for multiple ISPs to the Internet

18. When did the Internet become available for use by businesses and consumers?
• 1984

19. What was the original purpose of the Internet?
• voice communication

20. What three support service teams are commonly found within an ISP? (Choose three.)
• help desk
• network operations center
• planning and provisioning

CCNA Discovery 2 Module 2 Exam Answers Version 4.0

1. Which two functions are provided by the upper layers of the OSI model? (Choose two.)
• initiating the network communication process

2. Which is a function of the transport layer of the OSI model?
routes data between networks

3. Which common Layer 1 problem can cause a user to lose connectivity?
incorrect default gateway

4. Which three command line utilities are most commonly used to troubleshoot issues at Layer 3? (Choose three.)

5. Which address is used by the router to direct a packet between networks?
destination IP address

6. What is the correct encapsulation order when data is passed from Layer 1 up to Layer 4 of the OSI model?
bits, frames, packets, segments

7. What are two goals of the ISP help desk? (Choose two.)
network optimization
• competitive scalability

8. In what two ways do Level 1 and Level 2 help desk technicians attempt to solve a customer’s problems? (Choose three.)
using various web tools

9. A customer calls the help desk about setting up a new PC and cable modem and being unable to access the Internet. What three questions would the technician ask if the bottom-up troubleshooting approach is used? (Choose three.)
What is the IP address and subnet mask?
• Can the default gateway be successfully pinged?
• Is the network cable properly attached to the modem?

10. A customer calls to report a problem accessing an e-commerce web site. The help desk technician begins troubleshooting using a top-down approach. Which question would the technician ask the customer first?
• Is there a firewall installed on your computer?

11. Which statement describes the process of escalating a help desk trouble ticket?
When the problem is solved, all information is recorded on the trouble ticket for future reference.

12. What are two functions of the physical layer of the OSI model? (Choose two.)
encapsulating data into frames
routing packets

13. A customer calls the ISP help desk after setting up a new PC with a cable modem but being unable to access the Internet. After the help desk technician has verified Layer 1 and Layer 2, what are three questions the help desk technician should ask the customer? (Choose three.)
Can you ping the default gateway?
• Is the network cable properly attached to the cable modem?
• Is the network cable correctly connected to the network port on the PC?

14. Which scenario represents a problem at Layer 4 of the OSI model?
An incorrect IP address on the default gateway.

15. What are two basic procedures of incident management? (Choose two.)
opening a trouble ticket
• using diagnostic tools to identify the problem

16. Which level of support is supplied by an ISP when providing managed services?
Level 3

17. What is the first step that is used by a help desk technician in a systematic approach to helping a customer solve a problem?
identify and prioritize alternative solutions

18. A network technician has isolated a problem at the transport layer of the OSI model. Which question would provide further information about the problem?
Do you have a firewall that is configured on your PC?

19. An ISP help desk technician receives a call from a customer who reports that no one at their business can reach any websites, or get their e-mail. After testing the communication line and finding everything fine, the technician instructs the customer to run nslookup from the command prompt. What does the technician suspect is causing the customer’s problem?
hardware failure of the ISR used to connect the customer to the ISP

20. Which layers of the OSI model are commonly referred to as the upper layers?
application, presentation, session

CCNA Discovery 2 Module 3 Exam Answers Version 4.0

1. Which two benefits can be gained by locating network equipment in a telecommunications closet, rather than in a user area? (Choose two.)
improved physical security
• more resistant to hacker attempts

2. Which three issues should be noted on the technician’s site survey report? (Choose three.)
unlabeled cables
• only two power outlets per wall in each room
• poor physical security of network devices

3. Which two types of cable are used for initial router configuration? (Choose two.)
• serial cable
straight-through cable
• crossover cable

4. In addition to the inventory sheet, what other information about the hosts and networking equipment should be documented by the on-site technician while performing the site survey?
all product keys for site license software
• any planned growth anticipated in the near future

5. Refer to the exhibit. What type of device is used to connect two networks?

6. It is said that the goal for availability of a communications system is “five-9s”. What is meant by this?
A network needs to be available 99.999% of the time.

7. What three things are included in a logical topology document? (Choose three.)
the location of cables, computers, and other peripherals
• the path that the data takes through a network
the location of routing, network address translation, and firewall filtering

8. Which device has the ability to break up broadcast and collision domains?

9. Why is it important to review the results of an on-site survey report with the customer before beginning the network design?
to verify that the report accurately describes the current network and any plans for expansion

10. A client requires a networking device that is capable of expansion to suit growing network demands. What type of device will suit this requirement?
a networking device with a modular physical configuration

11. What does the use of redundant network components supply to a network?

12. What is the benefit for a company to use an ISR router?
An ISR provides the functionality of a switch, router, and firewall in one device.
13. Which three items are typically found in an MDF? (Choose three.)
switches and routers
network equipment racks
• the point of presence

14. What are two advantages of having ISP-managed services? (Choose two.)
can guarantee up to 99.999% availability
increases availability of help desk services

15. A manufacturing company is in the process of a network upgrade. Which two statements are true about the phases of the upgrade process? (Choose two.)
Phase 1 is used to determine network requirements.
Phase 3 is based on an implementation schedule that allows extra time for unexpected events.

16. When designing a network upgrade, which two tasks should the onsite technician perform? (Choose two.)
investigate and document the physical layout of the premises
perform a site survey to document the existing network structure

17. What is the term for the location at the customer premise where the customer network physically connects to the Internet through a telecommunications service provider?
backbone area

18. to the exhibit. Which type of twisted pair cable is used between each device?
• A=console, B=straight, C=crossover, D= crossover, E=straight
• A=straight, B=straight, C=straight, D=crossover, E=console
• A=crossover, B=straight, C=straight, D=crossover, E=crossover
• A=console, B=straight, C=straight, D=crossover, E=crossover
• A=console, B=crossover, C=crossover, D=straight, E=straight

19. In what two ways will entering into a managed service agreement with an ISP for a network upgrade affect the costs that are incurred by the customer? (Choose two.)
The cost of hardware repairs and support will become the responsibility of the customer.
• Network upgrade and maintenance costs will become predictable.

20. Which type of cable has a solid copper core with several protective layers including PVC, braided wire shielding, and a plastic covering?

21. What must be added when a network expands beyond the coverage area of the current telecommunications room?


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