CCNA 4 Final Exam Answers Option C

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

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Questions: 55
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CCNA 4 V6.0 Final Exam Answers Option C Questions and Answers

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

UMTS

CDMA

GSM

LTE

¡ 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 !

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

WiMAX

VSAT

dialup

VPN

3G/4G cellular

¡ Correcto ! ¡ Incorrecto !

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

Por favor, selecciona 3 respuestas correctas

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

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.

¡ 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?

dial-up connection

remote access VPN over the Internet

leased line connection

site-to-site VPN over the Internet

¡ 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?

dialup

cable

ISDN

DSL

¡ 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 route

show ip protocols

show ip sla statistics

¡ Correcto ! ¡ Incorrecto !

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

traffic shaping

classification and marking

weighted random early detection

traffic policing

¡ Correcto ! ¡ Incorrecto !

What is the function of a QoS trust boundary?

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.

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.

¡ Correcto ! ¡ Incorrecto !

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

Por favor, selecciona 3 respuestas correctas

transports multiple Layer 3 protocols

creates additional packet overhead

provides encryption to keep VPN traffic confidential

uses RSA signatures to authenticate peeers

creates nonsecure tunnels between remote sites

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

¡ Correcto ! ¡ Incorrecto !

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

Por favor, selecciona 2 respuestas correctas

VMware ESX/ESXi

Microsoft Hyper-V 2012

Oracle VM VirtualBox

Virtual PC

VMware Fusion

¡ Correcto ! ¡ Incorrecto !

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

Por favor, selecciona 3 respuestas correctas

Microsoft hypervisor

Cisco Nexus Switches

Application Policy Infrastructure Controller

Virtual Security Gateway

Cisco Information Server

Application Network Profile

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

R1 will output the system messages to the local RAM.

R1 will reset all the warnings to clear the log.

The syslog server has the IPv4 address 192.168.10.10.

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

¡ Correcto ! ¡ Incorrecto !

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

GET request

SET request

GET response

Trap

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

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

¡ 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

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

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

establishes identities with a two-way handshake

transmits login information in encrypted format

uses an unpredictable variable challenge value to prevent playback attacks

makes authorized network administrator intervention a requirement to establish each session

¡ Correcto ! ¡ Incorrecto !

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

network connectivity

data analytics

fog computing

application enhancement platform

¡ Correcto ! ¡ Incorrecto !

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

SNMP

802.1X

syslog

SPAN

¡ Correcto ! ¡ Incorrecto !

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

The VPN connection is not statically defined.

Individual hosts can enable and disable the VPN connection.

VPN client software is installed on each host.

Internal hosts send normal, unencapsulated packets.

¡ 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.

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.

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

¡ Correcto ! ¡ Incorrecto !

Which type of QoS marking is applied to Ethernet frames?

IP precedence

ToS

CoS

DSCP

¡ 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?

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

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

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

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

¡ Correcto ! ¡ Incorrecto !

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

Gather symptoms.

Isolate the problem.

Update the user and document the problem.

Implement corrective action.

¡ Correcto ! ¡ Incorrecto !

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

voice codec

WFQ

digital signal processor

playout delay buffer

¡ Correcto ! ¡ Incorrecto !

What is the only type of ACL available for IPv6?

numbered standard

numbered extended

named extended

named standard

¡ Correcto ! ¡ Incorrecto !

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

TCP

ICMP

UDP

¡ Correcto ! ¡ Incorrecto !

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

MPLS

PSTN

T1/E1

DSL

¡ Correcto ! ¡ Incorrecto !

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

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

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

The ACL is missing the deny ip any any ACE.

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

¡ Correcto ! ¡ Incorrecto !

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

Enable PortFast on all switch ports.

Configure all switch ports to be members of VLAN 1.

Disable VTP.

Disable automatic trunking negotiation.

¡ 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?

TACACS+

SNMP

802.1X

RSPAN

DHCP snooping

¡ 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 !

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

when the enterprise decides to secure its corporate LAN

when its employees become distributed across many branch locations

when the network will span multiple buildings

when the number of employees exceeds the capacity of the LAN

¡ 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 !

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

Por favor, selecciona 2 respuestas correctas

Frame Relay

ATM

DSL

cellular

cable

¡ 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 206.165.202.129

R1(config-if)# tunnel destination 206.165.202.130

R1(config-if)# tunnel destination 172.16.2.2

R1(config-if)# tunnel source 172.16.2.1

R1(config-if)# tunnel source 209.165.202.129

R1(config-if)# tunnel source 209.165.202.130

¡ Correcto ! ¡ Incorrecto !

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

Configure Telnet.

Configure 802.1x.

Configure an ACL and apply it to the VTY lines.

Configure SSH.

¡ Correcto ! ¡ Incorrecto !

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

HDLC

Frame Relay

CHAP

PAP

¡ 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

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

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

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

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

¡ Correcto ! ¡ Incorrecto !

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

Ethernet

HDLC

PPPoE

PPP

¡ Correcto ! ¡ Incorrecto !

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

LLQ

CBWFQ

FIFO

FCFS

¡ 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?

cisco654321

cisco123456

cisco98765

cisco54321

¡ 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 25

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

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

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

¡ Correcto ! ¡ Incorrecto !

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

baselining tool

protocol analyzer

knowledge base

NMS tool

¡ 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?

D-A-C-B

C-B-A-D

C-B-D-A

B-A-D-C

A-B-C-D

¡ Correcto ! ¡ Incorrecto !

How can DHCP spoofing attacks be mitigated?

by implementing port security

by implementing DHCP snooping on trusted ports

by disabling DTP negotiations on nontrunking ports

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

¡ Correcto ! ¡ Incorrecto !

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

¡ Correcto ! ¡ Incorrecto !

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

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

a less-structured approach based on an educated guess

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

an approach comparing working and nonworking components to spot significant differences

¡ 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?

WiMax

satellite

cable

DSL

¡ Correcto ! ¡ Incorrecto !

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 ACL is not permitting access by the SNMP manager.

The incorrect community string is configured on the SNMP manager.

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

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

¡ 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 !

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?

Host A has an incorrect subnet mask.

Host A has an incorrect default gateway configured.

NAT is required for the host A network.

Host A has an overlapping network address.

The router has an incorrect gateway.

¡ 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?

jitter

latency

buffering

queuing

¡ Correcto ! ¡ Incorrecto !

What does BGP use to exchange routing updates with neighbors?

TCP connections

area numbers

hellos

group identification numbers

¡ Correcto ! ¡ Incorrecto !

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

Por favor, selecciona 2 respuestas correctas

presentation layer

network layer

session layer

transport layer

physical layer

data link layer

¡ Correcto ! ¡ Incorrecto !

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

Por favor, selecciona 2 respuestas correctas

HSRP

TACACS+

VTP

RADIUS

LLDP

¡ 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

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

Match the cloud model with the description.

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

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

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?

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

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

What is the function of a QoS trust boundary?

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

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

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

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

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

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?

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.)

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

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

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

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

Which type of QoS marking is applied to Ethernet frames?

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?

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

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

What is the only type of ACL available for IPv6?

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

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

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

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

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?

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

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

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

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

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

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

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

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

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

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

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

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?

How can DHCP spoofing attacks be mitigated?

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

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

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?

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?

Match the operation to the appropriate QoS model.

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?

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?

What does BGP use to exchange routing updates with neighbors?

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

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