cisco discovery 4 final 2010

7/31/2019 Cisco Discovery 4 Final 2010

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sco Discovery 4 Final 2010

Which task would typically only require services located at the access layer of the hierarchical design

model?

connecting to the corporate web server to update sales figures

using a VPN from home to send data to the main office servers

printing a meeting agenda on a local departmental network printer

placing a VoIP call to a business associate in another country

responding to an e-mail from a co-worker in another department

efer to the exhibit. A network administrator is validating the routing for the new network design. Whic

ommand should be used to configure the s0/0/0 interface of the SALES router to advertise the Salesepartment networks as one route?

SALES(config-if)# ip summary-address eigrp 100 172.16.0.0 255.255.0.0




Why is it difficult for network designers to predict the patterns and behavior of file transfer traffic?

The traffic is user initiated.

File size is typically very small.

Dedicated bandwidth is essential.

All file transfer traffic is queued as high priority.


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efer to the exhibit. A NetworkingCompany designer is reviewing a diagram of a customer network. Wh

wo risks or issues can be identified in the topology that is shown? (Choose two.)

The firewall router and ISP connection represent a single point of failure.

A failure of the switch that connects the Cisco Call Manager to the network will cause the entire

elephony system to fail.

Using Layer 3 switches to interconnect the data center servers to the IP phones introduces too m

elay.

The IP phones need to be redundantly connected to the switches to prevent single points of failu

he access layer.

If one of the Layer 3 switches fails, the Cisco Call Manager will be unreachable.


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efer to the exhibit. A network associate is configuring a new router to provide routing between VLANs

ssociate removes the router from the box and connects the Fa0/0 interface to a trunking port on the

witch. After the configuration is applied to the router, the traffic between VLANs still fails. What is caus

his to occur?

The NWRnStick router needs a routing protocol configured.

The NWRnStick router needs additional Fast Ethernet interfaces installed.

The subinterfaces of the NWRnStick router should have IP addresses applied.

All the subinterfaces of the NWRnStick router should be configured in the same VLAN.

When implementing a security policy, which two actions should be included as part of the security

hecklist? (Choose two.)

Disable all logging.

Enable Telnet on TCP port 23.

Use HTTP for web administration.

Set timeouts and ACLs on VTY lines.

Shut down any unused ports and interfaces.


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The network infrastructure of the main campus in an organization consists of network devices from

multiple vendors. The IT department has a network architecture upgrade project that will gradually

pgrade the campus backbone to 10 Gb/s. The routing protocol also needs to be upgraded from RIP to

upport VLSM and CIDR, with infrequent routing updates to reduce traffic. In phase one of the project, t

gh-end Cisco devices are purchased to replace two of the four current core routers made by another

etworking company.

Which routing protocol should be selected for the network?

BGP

OSPF

RIPv2

EIGRP

A network engineer is prototyping a new IP addressing and summarization strategy for a new network

hat will be integrated into the existing infrastructure. Which method is appropriate for testing the

ddressing scheme?

using the production network of the customer

using actual network equipment in a lab

using the Cisco Network Assistant

using a network simulation tool

A network administrator is integrating IPv6 into an IPv4 network by encapsulating an IPV6 packet with

n IPv4 protocol. Which transition method is being used?

tunneling

dual stack

proxying and translation

NAT with Protocol Translator

0 What Cisco VPN solution allows for simple configuration of VPNs on the laptops of remote and mobile

mployees?

EasyVPN Server

EasyVPN Remote

EasyVPN Client

EasyVPN Remote-Access


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1 What are three advantages of IPv6 over IPv4? (Choose three.)

increased IP security

fewer reserved IP addresses

simplified header information

integrated IP mobility support

easier implementation and configuration

more efficient handling of broadcasts

2 In the Cisco Enterprise Architecture, which module would include web and e-commerce servers for

ccess by users external to the organization?

campus core

enterprise edge

enterprise branch

enterprise campus

3 If a router is unable to find a suitable IOS to load into RAM, in what mode does the boot process end?

setup mode

user mode

rommon mode

privileged mode


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4

efer to the exhibit. The users on the 192.168.10.128/26 network are not allowed Internet access. Whe

he most efficient location to place an extended ACL?

inbound on S0/0/0 of R1

outbound on S0/0/1 of R1

inbound on Fa0/0 of R2

outbound on Fa0/0 of R2

inbound on S0/0/1 of R2

5 What type of Frame Relay subinterface must be used to connect remote sites without having to disa

plit horizon?

multipoint

multiaccess

point-to-point

nonbroadcast multiaccess


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6

efer to the exhibit. Based on the EIGRP configuration that is shown, what can the field engineer conclu

bout the EIGRP authentication between RouterA and RouterB?

Authentication will fail because only one key is configured.

Authentication will fail because the key chain names do not match.

Authentication will succeed and EIGRP updates can be exchanged.

Authentication will fail because the key chain names must match the router names.

7

efer to the exhibit. What is the spanning-tree role of all the enabled interfaces of SW11?

alternate

backup

designated

root


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8

efer to the exhibit. The administrator wishes to specify that the 56 kb/s circuit will be a backup link th

ill automatically be used in the event that the primary Frame Relay circuit goes down for traffic to the

72.16.75.0/24 network. Which command syntax will accomplish this?

RouterA(config)# ip route 172.16.75.0 255.255.255.0 192.16.35.76 200

RouterA(config)# ip route 172.16.75.0 255.255.255.0 192.16.35.76



9 What are two advantages of using Layer 3 devices instead of Layer 2 switches at the distribution lay

f a hierarchical network? (Choose two.)

allows connectivity between different VLANs

provides reliable connectivity to the end user

reduces the number of required redundant links

results in fewer IP subnets to configure and manage

enables traffic filtering that is based on subnet addresses


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0

efer to the exhibit. The network administrator has used the Cisco Feature Navigator to choose a Cisco

mage to install on a router. Given the exhibited output of the show version command, which statemen

ue about the capacity of the router to use this Cisco IOS image?

There is enough DRAM and flash.

There is not enough DRAM and flash.

There is enough DRAM but not enough flash.

There is not enough DRAM but enough flash.

1 On a Monday morning the help desk at a large company receives an unusually high number of calls

eporting no connectivity to the Internet or to any other network resources. Otherwise the PCs are

unctioning normally. Help desk technicians note that all the calls are from a single department, and al

ffected users are on the same floor of a single building. Where should the help desk technicians suspe

hat the problem lies?

workgroup switch

PC power supplies

patch cords from PCs to network jacks

cabling from the network jack to the wiring closet

2 In order for the IT staff of a company to understand the basic operation of VPNs, which two features

echnologies must the network designer identify as training needs? (Choose two.)

IPv6 tunneling

QoS operation


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tunneling protocols

VLAN configuration

encryption algorithms

3 A network administrator needs to transfer an IOS image to a router using a TFTP server. What shoul

erified prior to beginning the transfer process?

The TFTP server must connect to the router via a serial connection.

Connectivity between the TFTP server and the router should have been established.

The TFTP server and the router must be on different networks for the transfer.

The TFTP server software must be the same version as the Cisco IOS software.

4

efer to the exhibit. A technician at the ISP site asks the network administrator at the client site to chan

he CHAP password as part of the routing security maintenance. After the administrator makes the cha

nd reboots the router, the technician issues a show interfaces serial 0/0/0 command. According to the

utput, what can be concluded about the serial connection between the client site and ISP site?

The router at the client site is still in the process of rebooting.

The administrator probably configured the wrong password.

The administrator has not issued a no shut command on the serial interface.

The administrator probably configured the wrong IP address for the serial interface.


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5 The main office of a NetworkingCompany customer currently connects to three branch offices via th

eparate point-to-point T1 circuits. The customer network uses RIPv2 as the routing protocol within bot

he LAN and the WAN. The account manager proposes a change to a Frame Relay network because the

osts are lower. A single local loop connection can be installed at the main office with three separate PV

o connect the branch offices. How can the main office edge router be configured to enable the custom

ontinue to use RIP as the WAN routing protocol?

Enable Inverse ARP on the serial interface in order to learn the routes to the IP addresses of the

emote routers.

To prevent the Frame Relay network from causing a routing loop, disable split horizon on the ser

terface.

Create three separate point-to-point subinterfaces on the serial interface and assign a different

ubnet IP address to each one.

Configure the serial interface with a single interface DLCI number and create frame-relay map

atements for each remote site address.

6 What is the advantage of choosing EasyVPN for a new VPN implementation?

to provide encryption algorithms unavailable in other systems

to ensure that remote workers actually use the VPN for connectivity

to allow a greater variety of network devices to be used for VPN connections

to simplify the configuration tasks for the device that is used as the VPN server

7

efer to the exhibit. Which type of application communication model best describes this network?

client-client

client-server farm

client-enterprise edge

client-enterprise server

8 Which IOS component can be used to classify and monitor network traffic?

CDP


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NBAR

CiscoWorks

Network Assistant

9 A network engineer is at a customer site. After resolving technical problems in the network, the

ngineer provides a training session for the support staff. Which job function best fits the activities of th

etwork engineer?

network designer

account manager

pre-sales engineer

post-sales field engineer

0 A network administrator has removed a router from the network for maintenance. A new Cisco IOS

oftware image has been successfully downloaded to a server and copied into the flash of the router. W

hould the administrator do before placing the router back into service?

Delete the previous version of the Cisco IOS software from flash.

Copy the new IOS into NVRAM to create a backup copy.

Restart the router and verify that the new image starts successfully.

Verify the free space available on the router to store the new IOS image.

1 A network administrator is configuring a router interface with the command R1(config-if)# ipv6 addr

001:DB8:C18:1::/64 eui-64. If the MAC address of this Ethernet interface is 01-1C-70-CF-B4-30, what is

ost identifier for this interface under EUI-64 format?

11C:7000:00CF:B430

11C:70FE:FECF:B430

11C:70FF:FECF:B430

11C:70FF:FFCF:B430


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2

efer to the exhibit. Based on the configuration of router R2, which statement is true if the four listed

bjectives are requirements of an active security policy?

bjectives

1) All traffic from the Internet into the DMZ is to be logged.

2) Web traffic from the Internet is to be allowed into the DMZ.

3) TCP traffic from established sessions is to be allowed into the internal network.

4) Incoming e-mail from the Internet is to be handled by the DMZ e-mail server first.

Only objective 1 is met.

All four objectives are met.

Objectives 1, 2, and 4 are met.

Only objectives 2 and 4 are met.

Only objectives 2 and 3 are met.

3


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efer to the exhibit. A NetworkingCompany engineer is characterizing an existing network for a new

ustomer. The engineer issues a show running-config command on the branch router to gather

onfiguration information. What is the engineer able to determine as a result of viewing the output of t

ommand?

The branch office router has two routes to the main office LANs in the routing table.

The default route for the branch office traffic is the serial link to the Edge2 router.

A connection through ISP-A will be used to reach the main office LANs if the Frame Relay networknavailable.

By using both the DSL and the Frame Relay connection, the branch office router will load balance

affic that is destined for the main office LANs.

4 Company XYZ requires a WAN solution that provides flexible bandwidth options and supports one

hysical interface at the head office that would provide simultaneous connectivity to various remote sit

he distance from each site should not make the solution more expensive. Which WAN technology mee

he requirements of the company?

DSL

cable

Frame Relay

T1 leased line

5 A large company plans to add several servers and requires that the servers be reachable directly fro

he Internet. Which action will help the company accomplish this goal?

Assign to each server a static internal IP address that is mapped statically to a public IP address.

Place all servers in their own Class C private subnet.


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Provide a private address to each server using DHCP.

Assign addresses from a pool of public Class B addresses using DHCP.

6

efer to the exhibit. Following a test plan, the network systems engineer completes the configuration o

ccess layer switch and connects three PCs to test the configuration. The engineer attempts to ping fro

ach PC to the other connected PCs. Which three statements describe the expected results of pinging f

ne host to another? (Choose three.)

Host1 can ping Host2.

Host1 cannot ping Host2.





7 A school district decides to use the 172.30.0.0/16 network for its LAN networks. The network

dministrator must create an addressing scheme to support 500 users in the admin office, 200 at the h

chool, 60 at the elementary school and 28 at the district office. Which VLSM addressing scheme will

orrectly address the network with minimal waste?

172.30.0.0/20 admin


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0 Which two events occur when the command RouterB(config-if)# frame-relay map ip 198.133.219.2

issued on RouterB? (Choose two.)

RouterB uses DLCI 211 to forward data to 198.133.219.2.

A Layer 2 address is statically mapped to a Layer 3 address.

DLCI 211 replaces the MAC address in the ARP table for entry 198.133.219.2.

Inverse ARP is used to add an entry for 198.133.219.2 into the Frame Relay map table using DLC

11.

The remote router updates the Frame Relay map table with DLCI 211 to reach the 198.133.219.0

etwork.

1

efer to the exhibit. A network administrator configures two routers to test the WAN connection. The se

onnection requires PPP encapsulation and authentication with CHAP. However, the connection cannot

stablished. According to the partial output of the show running-config command, what is the cause of

roblem?

The password should be all lowercase.

The password should contain fewer than 8 characters.

The usernames must be the same as the sending router hostnames.

The usernames must be the same as the destination router hostnames.


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efer to the exhibit. What can be concluded from the output that is shown?

MDF_2811 has a MAC address of 2294:300F:0000.

Device C3750-24_IDF2 is running Cisco IOS Software Release 12.3(23)SEE2.

A Cisco 3750 switch is connected to the FastEthernet1/0/1 port on MDF_2811.

MDF_2811 is installed in the main distribution facility on floor 28 of building 11.

3

efer to the exhibit. In the Cisco IOS filename that is shown, what is signified by the underlined portion

version

platform

file format

feature set

4 What are two reasons to choose a pilot network instead of a prototype network during proof-of-conc

esting of a network design? (Choose two.)

Changes can be made at any time.

The customer desires testing in a real-world environment.


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A highly controlled simulated environment is easier to manage.

The test network must be independent from the production network.

Network response to unplanned and unpredictable events must be assessed.

5 A company has branch offices at several locations across the country. Which security implementatio

ould provide a cost-effective, secure, and authenticated connection to centralized internal resources t

re located at company headquarters, without requiring configuration for individual employees at the

ranch offices?

leased line with PPP authentication

site-to-site VPN

access control list

remote-access VPN

6 A network administrator is asked to upgrade the enterprise network devices and to modify the

ddressing scheme to support VLSM and route summarization. The current network infrastructure cont

oth Cisco and non-Cisco routers. The plan is to replace old routers gradually with the latest Cisco route

Which two routing protocols can the administrator use to support both upgrading requirements? (Choo

wo.)

BGP

OSPF

RIPv1

RIPv2

EIGRP

7

efer to the exhibit. The routers are configured with RIPv2 and utilize the default configuration. When

ttempting to communicate with other networks, hosts from 172.31.1.0/24 are experiencing connectivi

sues. What could be done to resolve this issue?

Change to a public IP address scheme.

Ensure that automatic route summarization has been disabled on all routers in the network.

Change the IP address for the Router3 LAN to be 192.168.7.0/24.

Change the subnet mask on the link between Router2 and Router3 to 255.255.255.0.


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8 Which technology will prioritize traffic based upon the technical requirements of IP telephony?

PoE

QoS

RPC

RTP

VPN

9 A small office with ten employees needs to provide external customer access to an office Web serve

so requires filtered access to the Internet for its employees. What device would best serve their need

standalone access points with separate VLANs for customers and employees

core layer router with software based firewall set

dedicated firewall appliance with DMZ capabilities

SOHO router with IOS firewall feature set to filter traffic in and out of the company

0 A technician adds the command Router(config-router)# variance 5 to a router using EIGRP as the

outing protocol. What is the result of entering this command?

enables unequal cost load balancing

adjusts the metric of all EIGRP routes to 5

restricts the number of EIGRP feasible successor routes to 5

activates the use of all K values in the composite metric calculation

enables EIGRP equal cost load balancing over a maximum of 5 routes

1 What best practice should be followed when installing a new interface card into a Cisco 1841 router?

Leave the power on because the device supports hot-swappable interface cards.

Be sure the card faceplate does not touch the rear panel of the chassis.

Use pliers to push the card into the connecting socket.

Use a properly grounded antistatic wrist strap.

Leave the captive screws loose until the card is working properly, then tighten securely.

2 When implementing an IP telephony solution, why should VLANs be used?

to allow the use of a single IP gateway

to separate voice from data traffic for ease of prioritization

to allow the PBX to use VLAN IDs to filter both voice and data traffic

to allow connectivity between traditional phone devices and IP-based telephony devices

cisco discovery 4 final 2010

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