CCNA Discovery 4 – Module 3 Exam Answers

1. A new Cisco IOS version has been copied into flash from a TFTP server. When a reload is issued
to upgrade the Cisco IOS, the router freezes part of the way through the loading process. What
could be the problem?
• There is enough flash but not enough RAM in the router.
The new HWIC cards have not been installed yet.
The TFTP server needs to be present during a reload.
The new Cisco IOS should have been loaded into NVRAM.
The new bootstrap version is not compatible with the original version on the router.

2. Which two pieces of information does the network designer need to determine if the Cisco IOS of
a router requires an upgrade? (Choose two.)
amount of NVRAM installed
• model number of the router
number of interfaces and installed HWICs
• installed Cisco IOS feature set and version
error statistics for each interface

3. Which two items are objectives of a WLAN design site survey? (Choose two.)
• identify coverage areas
• determine primary AP locations
determine what AP equipment should be purchased
determine how many users will access the WLAN
identify the bottleneck of the LAN infrastructure

4. Refer to the exhibit. Based upon the Cisco IOS file naming convention, what is represented by
the value ipvoicek9 listed in the IOS filename?
file format
• feature set
hardware platform

5. What are two practices a network technician should follow when installing a new interface card in a router? (Choose two.)
Be sure the interface card faceplate does not touch the chassis rear panel.
Do not tighten the captive screws until the router has been powered on and recognizes the card.
Store the blank faceplate inside the card slot to be used if the card is removed.
• Handle the interface card by the edges to avoid static discharge.
• Push the interface card into place until the edge connector is seated securely

6. Refer to the exhibit. A network designer has no documentation and is attempting to create a
logical diagram of the network using the output from show commands. What can be determined
from the output shown?
The device with the ID of ISP is a router on the Internet.
The attached switch is a VTP server in the Toronto domain.
• The designer cannot telnet to the attached switch.
The Cisco router IOS supports enterprise-level voice and video technologies.

7. During a site survey, the network designer noticed that people were accessing the company
wireless network from the parking lot. What should be done to stop the wireless signal from
radiating out into the parking lot?
change the channel on the wireless AP
connect the wireless AP to a firewall
• change the type of antenna attached to the AP
move the wireless AP to a secure VLAN
move the wireless AP to a port on a Layer 3 switch

8. In which section of the Network Design Requirements document would a network
consulting team detail names and IP addresses of important networking components and servers,
provide network diagrams and topologies, and define strengths and weaknesses of the network?
network requirements
project scope
overall project goal
• state of the network

9. Refer to the exhibit. The top of the output shows the Cisco Feature Navigator regarding a Cisco
IOS image that the administrator wants to install on a router. Below it is the output from the show
version command for that router. Which statement is true regarding the capacity of the router to
run this Cisco IOS image?
• There is not enough DRAM and flash.
There is enough DRAM and flash.
There is enough DRAM but not enough flash.
There is enough flash but not enough DRAM.

10. Refer to the exhibit. What two items can be determined from the output? (Choose two.)
• R2 is a Cisco 2600 device.
R2 has 22 MB of RAM installed.
• The version of the IOS is 12.3.
Over 8 MB of NVRAM is installed.
A new 36 MB IOS file can be installed on the device.

11. Refer to the exhibit. Which two actions improve the weaknesses of the topology shown, assuming
that each access layer segment is in its own subnet? (Choose two.)
• Implement redundant links to each server by adding additional NICs.
Implement a reduntant link from all access layer switches to Admin, Dist, and Server Farm.
• Implement a backup firewall with a link to a secondary ISP and implement a redundant link to the DMZ.
Implement reduntant links from the existing firewall to all access layer switches.
Implement redundant links from the DMZ to Admin and Dist.

12. Refer to the exhibit. The network administrator is attempting to install a new version of the IOS on
R2. Based on the exhibited output, what are two possible reasons that the transfer failed?(Choose two.)
The administrator did not enable TFTP on R2.
There is not enough flash available to store the new IOS.
• Connectivity between R2 and the TFTP server was not verified.
The copy command was incorrectly entered.
• The administrator did not verify that the TFTP server is running.

13. An employee at a company notices that the wireless signal strength indicator on his laptop
fluctuates from good to low. The network administrator decides to do a site survey of that area.
Which three factors need to be included in the survey? (Choose three.)
type and model number of the WNIC of the laptop
• number of users in the area
• location of the AP
list of MAC addresses filtered by the AP
number of simultaneous applications running on the laptop of the employee
• location of walls and filing cabinets in the office

14. Refer to the exhibit. A network administrator issues the command shown to gain knowledge about
a poorly documented network. Which two pieces of information can the network administrator
discover from the command output? (Choose two.)
• One connected device has router capability.
The entire network contains a total of five Cisco devices with CDP enabled.
None of the directly connected network devices have been configured with an IP address.
Device EDGE_2811 is connected to port Fast Ethernet 0/0 on device C3750-24_MDF.
• Five Cisco devices with CDP enabled are directly connected to device C3750-24_MDF

15. Which three pieces of information need to be considered when selecting the proper Cisco IOS
version for an upgrade? (Choose three.)
processor ID
interface type
• amount of DRAM
bootstrap version
• device make and model
• size of system flash memory

16. The new network design for AnyCompany must include support of voice and video traffic. Before
upgrading, the network designer checks whether the existing devices can support the new
requirements. Which three items does the designer need to check? (Choose three.)
number of routers and switches owned by AnyCompany
routers that will support extra ASICs and WWICs
• size of DRAM and flash on each device
• routers that will support HWICs and VWICs
system bootstrap version on each router and switch
• modules supported on the loaded Cisco IOS

17. A network design project includes a review of the existing network. What is the purpose of this
phase of the project?
eliminate the need for a site survey
shorten the timeframe of the project
lower the cost of the project by removing redundant links and devices
determine if the number of applications used within the company can be reduced
• To determine what existing network devices require upgrades to meet the new

18. During a wireless site survey, a consultant is determining the hours of peak
usage and the estimated number of users in each location. The consultant is currently in what
step of the site survey process?
the defining of customer requirements
• the identification of coverage areas
the determining of preliminary AP locations
the measurement of signal strength

19. production router is reloaded and finishes with a Router> prompt. What three facts can be
determined? (Choose three.)
• POST occurred normally.
The boot process was interrupted.
There is not enough RAM or flash on this router.
• A full version of the Cisco IOS was located and loaded.
• A configuration file was not located in NVRAM or from a TFTP server.
The router did not locate the Cisco IOS in flash, so it defaulted to ROM.

20. Refer to the exhibit. Which of the three Cisco IOS images shown will load into RAM?
The router selects an image depending on the value of the configuration register.
The router selects the third Cisco IOS image because it is the most recent IOS image.
The router selects the second Cisco IOS image because it is the smallest IOS image.
• The router selects an image depending on the boot system command in the configuration.
The router selects the third Cisco IOS image because it contains the advipservicesk9 image.

21. The new serial interface card for the router arrives and the network technician reads that it is hotswappable.
What does this mean?
The card cannot be installed while the router is powered on because static discharge
could damage the card.

The card cannot be installed until the router is powered off and completely cooled down.
• The card can be installed while the router is powered on if the router supports this technology.
The card is a replacement and must be installed in the same slot as the card it is replacing.

22. An administrator wants to download a new Cisco IOS software version to the local router. Which
command performs this task?
• copy tftp flash
copy flash run
copy start tftp
copy flash tftp
copy tftp start

23. It is important to identify the details of network sections and devices that will be affected or
involved in a new design. This information is included in which section of the Network Design
Requirements Document?
Project Goal
• Project Scope
Technical Requirements
Current State of the Network

24. A company is beginning to analyze their new Cisco IOS upgrade requirements. What is one of the
router components that a network administrator must consider when selecting a new Cisco IOS version?
processor type
storage space in NVRAM
• interfaces and modules to be supported
compatibility of the bootstrap version with the new Cisco IOS software