CCNA 4 Final Exam Answers Option C

Cisco CCNA 4 Simulation v6.0 Test Final Exam Option C

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CCNA 4 Final Exam Answers Option C Quiz Questions and Answers. In this simulation, take your test, get your score and share with others!

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Questions: 55
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CCNA 4 Examen del Capítulo 2

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CCNA 4 V6.0 Final Exam Answers Option C Questions and Answers

Refer to the exhibit. A SNMP manager is using the community string of snmpenable and is configured with the IP address 172.16.10.1. The SNMP manager is unable to read configuration variables on the R1 SNMP agent. What could be the problem?

The community of snmpenable2 is incorrectly configured on the SNMP agent.

The incorrect community string is configured on the SNMP manager.

The ACL is not permitting access by the SNMP manager.

The SNMP agent is not configured for read-only access.

¡ Correcto ! ¡ Incorrecto !

Refer to the exhibit. A network administrator discovers that host A is having trouble with Internet connectivity, but the server farm has full connectivity. In addition, host A has full connectivity to the server farm. What is a possible cause of this problem?

The router has an incorrect gateway.

Host A has an overlapping network address.

Host A has an incorrect subnet mask.

NAT is required for the host A network.

Host A has an incorrect default gateway configured.

¡ Correcto ! ¡ Incorrecto !

Which cellular or mobile wireless standard is considered a fourth generation technology?

GSM

LTE

CDMA

UMTS

¡ Correcto ! ¡ Incorrecto !

What is a primary difference between a company LAN and the WAN services that it uses?

The company has direct control over its WAN links but not over its LAN.

The LAN may use a number of different network access layer standards whereas the WAN will use only one standard.

Each LAN has a specified demarcation point to clearly separate access layer and distribution layer equipment.

The company must subscribe to an external WAN service provider.

¡ Correcto ! ¡ Incorrecto !

Which IPv6 ACL command entry will permit traffic from any host to an SMTP server on network 2001:DB8:10:10::/64?

permit tcp any host 2001:DB8:10:10::100 eq 23

permit tcp host 2001:DB8:10:10::100 any eq 25

permit tcp any host 2001:DB8:10:10::100 eq 25

permit tcp host 2001:DB8:10:10::100 any eq 23

¡ Correcto ! ¡ Incorrecto !

What network monitoring tool copies traffic moving through one switch port, and sends the copied traffic to another switch port for analysis?

SPAN

SNMP

syslog

802.1X

¡ Correcto ! ¡ Incorrecto !

Voice packets are being received in a continuous stream by an IP phone, but because of network congestion the delay between each packet varies and is causing broken conversations. What term describes the cause of this condition?

queuing

jitter

buffering

latency

¡ Correcto ! ¡ Incorrecto !

How can DHCP spoofing attacks be mitigated?

by disabling DTP negotiations on nontrunking ports

by the application of the ip verify source command to untrusted ports

by implementing DHCP snooping on trusted ports

by implementing port security

¡ Correcto ! ¡ Incorrecto !

A network administrator has noticed an unusual amount of traffic being received on a switch port that is connected to a college classroom computer. Which tool would the administrator use to make the suspicious traffic available for analysis at the college data center?

802.1X

SNMP

RSPAN

DHCP snooping

TACACS+

¡ Correcto ! ¡ Incorrecto !

Which pillar of the Cisco IoT System allows data to be analyzed and managed at the location where it is generated?

application enhancement platform

fog computing

network connectivity

data analytics

¡ Correcto ! ¡ Incorrecto !

Which statement describes a feature of site-to-site VPNs?

Internal hosts send normal, unencapsulated packets.

VPN client software is installed on each host.

Individual hosts can enable and disable the VPN connection.

The VPN connection is not statically defined.

¡ Correcto ! ¡ Incorrecto !

Refer to the exhibit. What two commands are needed to complete the GRE tunnel configuration on router R1? (Choose two.)

Por favor, selecciona 2 respuestas correctas

R1(config-if)# tunnel destination 206.165.202.130

R1(config-if)# tunnel source 172.16.2.1

R1(config-if)# tunnel source 209.165.202.130

R1(config-if)# tunnel source 209.165.202.129

R1(config-if)# tunnel destination 206.165.202.129

R1(config-if)# tunnel destination 172.16.2.2

¡ Correcto ! ¡ Incorrecto !

What action can a network administrator take to help mitigate the threat of VLAN attacks?

Disable automatic trunking negotiation.

Configure all switch ports to be members of VLAN 1.

Enable PortFast on all switch ports.

Disable VTP.

¡ Correcto ! ¡ Incorrecto !

Refer to the exhibit. What can be determined from this output?

Because there are no matches for line 10, the ACL is not working.

The router has not had any Telnet packets from 10.35.80.22 that are destined for 10.23.77.101.

The ACL is missing the deny ip any any ACE.

The ACL is only monitoring traffic destined for 10.23.77.101 from three specific hosts.

¡ Correcto ! ¡ Incorrecto !

Refer to the exhibit. Which SNMP authentication password must be used by the member of the ADMIN group that is configured on router R1?

cisco123456

cisco654321

cisco54321

cisco98765

¡ Correcto ! ¡ Incorrecto !

A router has been configured to use simulated network traffic in order to monitor the network performance between the router and a distant network device. Which command would display the results of this analysis?

show monitor

show ip sla statistics

show ip protocols

show ip route

¡ Correcto ! ¡ Incorrecto !

Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?

improper cable type

unplugged cable

interface reset

PPP issue

¡ Correcto ! ¡ Incorrecto !

A network administrator is configuring a PPP link with the commands:
R1(config-if)# encapsulation ppp
R1(config-if)# ppp quality 70
What is the effect of these commands?

The PPP link will not be established if more than 30 percent of options cannot be accepted.

The PPP link will be closed down if the link quality drops below 70 percent.

The NCP will send a message to the sending device if the link usage reaches 70 percent.

The LCP establishment phase will not start until the bandwidth reaches 70 percent or more.

¡ Correcto ! ¡ Incorrecto !

Refer to the exhibit. Which type of Layer 2 encapsulation used for connection D requires Cisco routers?

HDLC

PPP

PPPoE

Ethernet

¡ Correcto ! ¡ Incorrecto !

Refer to the exhibit. Considering how packets are processed on a router that is configured with ACLs, what is the correct order of the statements?

B-A-D-C

A-B-C-D

C-B-A-D

C-B-D-A

D-A-C-B

¡ Correcto ! ¡ Incorrecto !

Which WAN technology can switch any type of payload based on labels?

DSL

MPLS

T1/E1

PSTN

¡ Correcto ! ¡ Incorrecto !

What technology can be used to create a private WAN via satellite communications?

WiMAX

VSAT

dialup

3G/4G cellular

VPN

¡ Correcto ! ¡ Incorrecto !

What is the function of a QoS trust boundary?

A trust boundary only allows traffic to enter if it has previously been marked.

A trust boundary only allows traffic from trusted endpoints to enter the network.

A trust boundary identifies the location where traffic cannot be remarked.

A trust boundary identifies which devices trust the marking on packets that enter a network.

¡ Correcto ! ¡ Incorrecto !

What two protocols are supported on Cisco devices for AAA communications? (Choose two.)

Por favor, selecciona 2 respuestas correctas

VTP

HSRP

RADIUS

TACACS+

LLDP

¡ Correcto ! ¡ Incorrecto !

What are three features of a GRE tunnel? (Choose three.)

Por favor, selecciona 3 respuestas correctas

creates nonsecure tunnels between remote sites

provides encryption to keep VPN traffic confidential

transports multiple Layer 3 protocols

uses RSA signatures to authenticate peeers

creates additional packet overhead

supports hosts as GRE tunnel endpoints by installing Cisco VPN client software

¡ Correcto ! ¡ Incorrecto !

Which circumstance would result in an enterprise deciding to implement a corporate WAN?

when the network will span multiple buildings

when its employees become distributed across many branch locations

when the enterprise decides to secure its corporate LAN

when the number of employees exceeds the capacity of the LAN

¡ Correcto ! ¡ Incorrecto !

Which SNMP message type informs the network management system (NMS) immediately of certain specified events?

Trap

SET request

GET request

GET response

¡ Correcto ! ¡ Incorrecto !

Which troubleshooting approach is more appropriate for a seasoned network administrator rather than a less-experienced network administrator?

a less-structured approach based on an educated guess

an approach that starts with the end-user applications and moves down through the layers of the OSI model until the cause of the problem has been identified

an approach comparing working and nonworking components to spot significant differences

a structured approach starting with the physical layer and moving up through the layers of the OSI model until the cause of the problem is identified

¡ Correcto ! ¡ Incorrecto !

In which stage of the troubleshooting process would ownership be researched and documented?

Isolate the problem.

Gather symptoms.

Implement corrective action.

Update the user and document the problem.

¡ Correcto ! ¡ Incorrecto !

What does BGP use to exchange routing updates with neighbors?

area numbers

TCP connections

hellos

group identification numbers

¡ Correcto ! ¡ Incorrecto !

Which type of QoS marking is applied to Ethernet frames?

CoS

ToS

DSCP

IP precedence

¡ Correcto ! ¡ Incorrecto !

A company is looking for the least expensive broadband solution that provides at least 10 Mb/s download speed. The company is located 5 miles from the nearest provider. Which broadband solution would be appropriate?

satellite

cable

WiMax

DSL

¡ Correcto ! ¡ Incorrecto !

What is the only type of ACL available for IPv6?

named standard

numbered standard

named extended

numbered extended

¡ Correcto ! ¡ Incorrecto !

What is a secure configuration option for remote access to a network device?

Configure 802.1x.

Configure Telnet.

Configure SSH.

Configure an ACL and apply it to the VTY lines.

¡ Correcto ! ¡ Incorrecto !

Which type of tool would an administrator use to capture packets that are going to and from a particular device?

baselining tool

NMS tool

protocol analyzer

knowledge base

¡ Correcto ! ¡ Incorrecto !

Which technology can ISPs use to periodically challenge broadband customers over DSL networks with PPPoE?

HDLC

Frame Relay

PAP

CHAP

¡ Correcto ! ¡ Incorrecto !

Which public WAN access technology utilizes copper telephone lines to provide access to subscribers that are multiplexed into a single T3 link connection?

cable

DSL

ISDN

dialup

¡ Correcto ! ¡ Incorrecto !

Refer to the exhibit. Which two statements describe the results of entering these commands? (Choose two.)

Por favor, selecciona 2 respuestas correctas

R1 will reset all the warnings to clear the log.

R1 will output the system messages to the local RAM.

R1 will not send critical system messages to the server until the command debug all is entered.

R1 will send system messages of levels 0 (emergencies) to level 4 (warnings) to a server.

The syslog server has the IPv4 address 192.168.10.10.

¡ Correcto ! ¡ Incorrecto !

What are the three core components of the Cisco ACI architecture? (Choose three.)

Por favor, selecciona 3 respuestas correctas

Virtual Security Gateway

Cisco Nexus Switches

Microsoft hypervisor

Application Policy Infrastructure Controller

Cisco Information Server

Application Network Profile

¡ Correcto ! ¡ Incorrecto !

Refer to the exhibit. As traffic is forwarded out an egress interface with QoS treatment, which congestion avoidance technique is used?

weighted random early detection

traffic policing

traffic shaping

classification and marking

¡ Correcto ! ¡ Incorrecto !

Refer to the exhibit. A router has an existing ACL that permits all traffic from the 172.16.0.0 network. The administrator attempts to add a new statement to the ACL that denies packets from host 172.16.0.1 and receives the error message that is shown in the exhibit. What action can the administrator take to block packets from host 172.16.0.1 while still permitting all other traffic from the 172.16.0.0 network?

Manually add the new deny statement with a sequence number of 5.

Manually add the new deny statement with a sequence number of 15.

Create a second access list denying the host and apply it to the same interface.

Add a deny any any statement to access-list 1.

¡ Correcto ! ¡ Incorrecto !

How many DS0 channels are bounded to produce a 1.544 Mb/s DS1 line?

¡ Correcto ! ¡ Incorrecto !

A network administrator is evaluating authentication protocols for a PPP link. Which three factors might lead to the selection of CHAP over PAP as the authentication protocol? (Choose three.)

Por favor, selecciona 3 respuestas correctas

makes authorized network administrator intervention a requirement to establish each session

control by the remote host of the frequency and timing of login events

transmits login information in encrypted format

uses a three-way authentication periodically during the session to reconfirm identities

uses an unpredictable variable challenge value to prevent playback attacks

establishes identities with a two-way handshake

¡ Correcto ! ¡ Incorrecto !

Match the operation to the appropriate QoS model.

Best Effort
The model is most scalable
No packets receive preferential treatment

IntServ
End-to-end QoS is provided
Network resources are requested

DiffServ
Network devices are setup to handle multiple traffic classes
Traffic is identied in classes based on business requirements

¡ Correcto ! ¡ Incorrecto !

Which two hypervisors are suitable to support virtual machines in a data center? (Choose two.)

Por favor, selecciona 2 respuestas correctas

VMware Fusion

Oracle VM VirtualBox

VMware ESX/ESXi

Virtual PC

Microsoft Hyper-V 2012

¡ Correcto ! ¡ Incorrecto !

Match the cloud model with the description.

public cloud -> uses Internet to provide services
community cloud -> customized for funtional needs
hybrid cloud -> consists of two or more types of clouds
private cloud -> available to a single sprecific organization

¡ Correcto ! ¡ Incorrecto !

Which two technologies are private WAN technologies? (Choose two.)

Por favor, selecciona 2 respuestas correctas

DSL

cellular

ATM

cable

Frame Relay

¡ Correcto ! ¡ Incorrecto !

Which type of network traffic cannot be managed using congestion avoidance tools?

UDP

ICMP

TCP

¡ Correcto ! ¡ Incorrecto !

A network administrator has moved the company intranet web server from a switch port to a dedicated router interface. How can the administrator determine how this change has affected performance and availability on the company intranet?

Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.

Conduct a performance test and compare with the baseline that was established previously.

Interview departmental administrative assistants to determine if web pages are loading more quickly.

Determine performance on the intranet by monitoring load times of company web pages from remote sites.

¡ Correcto ! ¡ Incorrecto !

Which three statements are true about PPP? (Choose three.)

Por favor, selecciona 3 respuestas correctas

PPP can only be used between two Cisco devices.

PPP uses LCPs to establish, configure, and test the data-link connection.

PPP can use synchronous and asynchronous circuits.

PPP carries packets from several network layer protocols in LCPs.

PPP uses LCPs to agree on format options such as authentication, compression, and error detection.

¡ Correcto ! ¡ Incorrecto !

Refer to the exhibit. The network administrator that has the IP address of 10.0.70.23/25 needs to have access to the corporate FTP server (10.0.54.5/28). The FTP server is also a web server that is accessible to all internal employees on networks within the 10.x.x.x address. No other traffic should be allowed to this server. Which extended ACL would be used to filter this traffic, and how would this ACL be applied? (Choose two.)

Por favor, selecciona 2 respuestas correctas

R2(config)# interface gi0/0
R2(config-if)# ip access-group 105 in

access-list 105 permit tcp host 10.0.70.23 host 10.0.54.5 eq 20
access-list 105 permit tcp host 10.0.70.23 host 10.0.54.5 eq 21
access-list 105 permit tcp 10.0.0.0 0.255.255.255 host 10.0.54.5 eq www
access-list 105 deny ip any host 10.0.54.5
access-list 105 permit ip any any

R1(config)# interface s0/0/0 R1(config-if)# ip access-group 105 out

R1(config)# interface gi0/0
R1(config-if)# ip access-group 105 out

access-list 105 permit tcp host 10.0.54.5 any eq www
access-list 105 permit tcp host 10.0.70.23 host 10.0.54.5 eq 20
access-list 105 permit tcp host 10.0.70.23 host 10.0.54.5 eq 21

access-list 105 permit ip host 10.0.70.23 host 10.0.54.5
access-list 105 permit tcp any host 10.0.54.5 eq www
access-list 105 permit ip any any

¡ Correcto ! ¡ Incorrecto !

What mechanism compensates for jitter in an audio stream by buffering packets and then replaying them outbound in a steady stream?

WFQ

playout delay buffer

voice codec

digital signal processor

¡ Correcto ! ¡ Incorrecto !

Which QoS mechanism allows delay-sensitive data, such as voice, to be sent first before packets in other queues are sent?

CBWFQ

FIFO

LLQ

FCFS

¡ Correcto ! ¡ Incorrecto !

A corporation is searching for an easy and low cost solution to provide teleworkers with a secure connection to headquarters. Which solution should be selected?

leased line connection

remote access VPN over the Internet

dial-up connection

site-to-site VPN over the Internet

¡ Correcto ! ¡ Incorrecto !

To which two layers of the OSI model do WAN technologies provide services? (Choose two.)

Por favor, selecciona 2 respuestas correctas

network layer

physical layer

data link layer

transport layer

presentation layer

session layer

¡ Correcto ! ¡ Incorrecto !

CCNA 4 v6 Final Exam Answers Option C

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CCNA 4 V6.0 Final Exam Answers Option C Questions and Answers

Refer to the exhibit. A SNMP manager is using the community string of snmpenable and is configured with the IP address 172.16.10.1. The SNMP manager is unable to read configuration variables on the R1 SNMP agent. What could be the problem?

Refer to the exhibit. A network administrator discovers that host A is having trouble with Internet connectivity, but the server farm has full connectivity. In addition, host A has full connectivity to the server farm. What is a possible cause of this problem?

Which cellular or mobile wireless standard is considered a fourth generation technology?

What is a primary difference between a company LAN and the WAN services that it uses?

Which IPv6 ACL command entry will permit traffic from any host to an SMTP server on network 2001:DB8:10:10::/64?

What network monitoring tool copies traffic moving through one switch port, and sends the copied traffic to another switch port for analysis?

Voice packets are being received in a continuous stream by an IP phone, but because of network congestion the delay between each packet varies and is causing broken conversations. What term describes the cause of this condition?

How can DHCP spoofing attacks be mitigated?

A network administrator has noticed an unusual amount of traffic being received on a switch port that is connected to a college classroom computer. Which tool would the administrator use to make the suspicious traffic available for analysis at the college data center?

Which pillar of the Cisco IoT System allows data to be analyzed and managed at the location where it is generated?

Which statement describes a feature of site-to-site VPNs?

Refer to the exhibit. What two commands are needed to complete the GRE tunnel configuration on router R1? (Choose two.)

What action can a network administrator take to help mitigate the threat of VLAN attacks?

Refer to the exhibit. What can be determined from this output?

Refer to the exhibit. Which SNMP authentication password must be used by the member of the ADMIN group that is configured on router R1?

A router has been configured to use simulated network traffic in order to monitor the network performance between the router and a distant network device. Which command would display the results of this analysis?

Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?

A network administrator is configuring a PPP link with the commands: R1(config-if)# encapsulation ppp R1(config-if)# ppp quality 70 What is the effect of these commands?

Refer to the exhibit. Which type of Layer 2 encapsulation used for connection D requires Cisco routers?

Refer to the exhibit. Considering how packets are processed on a router that is configured with ACLs, what is the correct order of the statements?

Which WAN technology can switch any type of payload based on labels?

What technology can be used to create a private WAN via satellite communications?

What is the function of a QoS trust boundary?

What two protocols are supported on Cisco devices for AAA communications? (Choose two.)

What are three features of a GRE tunnel? (Choose three.)

Which circumstance would result in an enterprise deciding to implement a corporate WAN?

Which SNMP message type informs the network management system (NMS) immediately of certain specified events?

Which troubleshooting approach is more appropriate for a seasoned network administrator rather than a less-experienced network administrator?

In which stage of the troubleshooting process would ownership be researched and documented?

What does BGP use to exchange routing updates with neighbors?

Which type of QoS marking is applied to Ethernet frames?

A company is looking for the least expensive broadband solution that provides at least 10 Mb/s download speed. The company is located 5 miles from the nearest provider. Which broadband solution would be appropriate?

What is the only type of ACL available for IPv6?

What is a secure configuration option for remote access to a network device?

Which type of tool would an administrator use to capture packets that are going to and from a particular device?

Which technology can ISPs use to periodically challenge broadband customers over DSL networks with PPPoE?

Which public WAN access technology utilizes copper telephone lines to provide access to subscribers that are multiplexed into a single T3 link connection?

Refer to the exhibit. Which two statements describe the results of entering these commands? (Choose two.)

What are the three core components of the Cisco ACI architecture? (Choose three.)

Refer to the exhibit. As traffic is forwarded out an egress interface with QoS treatment, which congestion avoidance technique is used?

How many DS0 channels are bounded to produce a 1.544 Mb/s DS1 line?

A network administrator is evaluating authentication protocols for a PPP link. Which three factors might lead to the selection of CHAP over PAP as the authentication protocol? (Choose three.)

Match the operation to the appropriate QoS model.

Which two hypervisors are suitable to support virtual machines in a data center? (Choose two.)

Match the cloud model with the description.

Which two technologies are private WAN technologies? (Choose two.)

Which type of network traffic cannot be managed using congestion avoidance tools?

A network administrator has moved the company intranet web server from a switch port to a dedicated router interface. How can the administrator determine how this change has affected performance and availability on the company intranet?

Which three statements are true about PPP? (Choose three.)

What mechanism compensates for jitter in an audio stream by buffering packets and then replaying them outbound in a steady stream?

Which QoS mechanism allows delay-sensitive data, such as voice, to be sent first before packets in other queues are sent?

A corporation is searching for an easy and low cost solution to provide teleworkers with a secure connection to headquarters. Which solution should be selected?

To which two layers of the OSI model do WAN technologies provide services? (Choose two.)

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A network administrator is configuring a PPP link with the commands:
R1(config-if)# encapsulation ppp
R1(config-if)# ppp quality 70
What is the effect of these commands?