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CCNA Final 2012
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ccna 4 final 2012
December 30, 2011 By admin 4 Comments
ccna 4 final 2012 (95%)
EWAN Final Exam – CCNA Exploration: Accessing the WAN (Version 4.0)
1
Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown,
what is the most likely cause?
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ccna 4 final 2012
interface reset
unplugged cable
improper LMI type
PPP negotiation failure
2
Refer to the exhibit. A network administrator is tasked with completing the Frame Relay topology
that interconnects two remote sites. How should the point-to-point subinterfaces be configured on HQ
to complete the topology?
ccna 4 final 2012
frame-relay interface-dlci 103 on Serial 0/0/0.1frame-relay interface-dlci 203 on Serial 0/0/0.2
frame-relay interface-dlci 301 on Serial 0/0/0.1frame-relay interface-dlci 302 on Serial 0/0/0.2
frame-relay map ip 192.168.1.1 103 broadcast on Serial 0/0/0.1
frame-relay map ip 192.168.2.2 203 broadcast on Serial 0/0/0.2
frame-relay map ip 192.168.1.1 301 broadcast on Serial 0/0/0.1frame-relay map ip 192.168.2.2 302 broadcast on Serial 0/0/0.2
3
Which data link layer encapsulation protocol is used by default for serial connections between twoCisco routers?
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ATM
Frame Relay
HDLC
PPP
SDLC
4
Refer to the exhibit. Company ABC expanded its business and recently opened a new branch office inanother country. IPv6 addresses have been used for the company network. The data servers Server1and Server2 run applications which require end-to-end functionality, with unmodified packets that are
forwarded from the source to the destination. The edge routers R1 and R2 support dual stackconfiguration. What solution should be deployed at the edge of the company network in order to
successfully interconnect both offices?
ccna 4 final 2012
a new WAN service supporting only IPv6
NAT overload to map inside IPv6 addresses to outside IPv4 address
a manually configured IPv6 tunnel between the edge routers R1 and R2
static NAT to map inside IPv6 addresses of the servers to an outside IPv4 address and dynamic NAT for therest of the inside IPv6 addresses
5
Which variable is permitted or denied by a standard access control list?
protocol type
source IP address
source MAC address
destination IP address
destination MAC address
6
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Refer to the exhibit. The link between the CTRL and BR_1 routers is configured as shown in the
exhibit. Why are the routers unable to establish a PPP session?
The clock rate must be 56000.
The usernames are misconfigured.
The IP addresses are on different subnets.
The clock rate is configured on the wrong end of the link.
The CHAP passwords must be different on the two routers.
Interface serial 0/0/0 on CTRL must connect to interface serial 0/0/1 on BR_1.
7Which three statements accurately describe a security policy? (Choose three.)
It creates a basis for legal action if necessary.
It defines a process for managing security violations.
It defines acceptable and unacceptable use of network resources.
The remote access policy is a component of the security policy that governs acceptable use of e-mail systems.
It is kept private from users to prevent the possibility of circumventing security measures.
It provides step-by-step procedures to harden routers and other network devices.
8
A network administrator has changed the VLAN configurations on his network switches over the pastweekend. How can the administrator determine if the additions and changes improved performance
and availability on the company intranet?
Conduct a performance test and compare with the baseline that was established previously.
Interview departmental secretaries and determine if they think load time for web pages has improved.
Determine performance on the intranet by monitoring load times of company web pages from remote sites.
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Compare the hit counts on the company web server for the current week to the values that were recorded in
previous weeks.
9
Refer to the exhibit. Headquarters is connected through the Internet to branch office A and branch
office B. Which WAN technology would be best suited to provide secure connectivity betweenheadquarters and both branch offices?
ccna 4 final 2012
ATM
VPN
ISDN
Frame Relay
broadband DSL
10
Which statement about a VPN is true?
VPN link establishment and maintenance is provided by LCP.
DLCI addresses are used to identify each end of the VPN tunnel.
VPNs use virtual Layer 3 connections that are routed through the Internet.
Only IP packets can be encapsulated by a VPN for tunneling through the Internet.
11
A company is deciding which WAN connection type it should implement between its main office and
branch offices. The company wants to use a cost-effective service that provides virtual circuitsbetween each office. The company also wants to be able to transmit variable-length packets on these
circuits. Which solution best meets these requirements?
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ATM
HDLC
ISDN
Frame Relay
12
A technician is talking to a colleague at a rival company and comparing DSL transfer rates between
the two companies. Both companies are in the same city, use the same service provider, and have thesame rate/service plan. What is the explanation for why company 1 reports higher download speeds
than company 2 reports?
Company 1 only uses microfilters at branch locations.
Company 1 has a lower volume of POTS traffic than company 2 has.
Company 2 is located farther from the service provider than company 1 is.
Company 2 shares the connection to the DSLAM with more clients than company 1 shares with.
13
Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from
the DC router to the Orlando router?
DLCI 123
DLCI 321
10.10.10.25
10.10.10.26
MAC address of the Orlando router
14
Refer to the exhibit. This router is being configured to use SDM, but the SDM interface of the routercannot be accessed. What is the cause of the problem?
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The VTY lines are not configured correctly.
The HTTP timeout policy is not configured correctly.
The authentication method is not configured correctly.
The username and password are not configured correctly.
15
Which two devices can be used by teleworkers who need to connect to the company network across
the PSTN for a few hours a day? (Choose two.)
router
CSU/DSU
DSL modem
cable modem
access server
dialup modem
16
An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator
receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the
problem?
When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the
newer technology.
Incorrect IPv4 addresses are entered on the router interfaces.
RIPng is incompatible with dual-stack technology.
IPv4 is incompatible with RIPng.
17
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What is the function of an intrusion detection system on a network?
to restrict access to only authorized users
to detect attacks against a network and send logs to a management console
to prevents attack against the network and provide active defense mechanisms
to detect and prevent most viruses and many Trojan horse applications from spreading in the network
18
Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the
default gateway. What is the cause of the problem?
The default gateway is in the wrong subnet.
STP has blocked the port that PC1 is connected to.
Port Fa0/2 on S2 is assigned to the wrong VLAN.
S2 has the wrong IP address assigned to the VLAN30 interface.
19When Frame Relay encapsulation is used, what feature provides flow control and exchanges
information about the status of virtual circuits?
LCP
LMI
DLCI
Inverse ARP
20
A system administrator must provide Internet connectivity for ten hosts in a small remote office. The
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ISP has assigned two public IP addresses to this remote office. How can the system administrator
configure the router to provide Internet access to all ten users at the same time?
Configure DHCP and static NAT.
Configure dynamic NAT for ten users.
Configure static NAT for all ten users.
Configure dynamic NAT with overload.
21
A company is looking for a WAN solution to connect its headquarters site to four remote sites. What
are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution?
(Choose two.)
reduced jitter
reduced costs
reduced latency
the ability to burst above guaranteed bandwidth
the ability to borrow unused bandwidth from the leased lines of other customers
22
What will be the result of adding the command ip dhcp excluded-address 192.168.24.1 192.168.24.5 to
the configuration of a local router that has been configured as a DHCP server?
Traffic that is destined for 192.168.24.1 and 192.168.24.5 will be dropped by the router.
Traffic will not be routed from clients with addresses between 192.168.24.1 and 192.168.24.5.
The DHCP server will not issue the addresses ranging from 192.168.24.1 to 192.168.24.5.
The router will ignore all traffic that comes from the DHCP servers with addresses 192.168.24.1 and
192.168.24.5.
23
Refer to the exhibit. A host connected to Fa0/0 is unable to acquire an IP address from the DHCP
server. The output of the debug ip dhcp server command shows “DHCPD: there is no address pool for
192.168.3.17″. What is the problem?
The address 192.168.3.17 address is already in use by Fa0/0.
The pool of addresses for the 192Network pool is configured incorrectly.
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The ip helper-address command should be used on the Fa0/0 interface.
The 192.168.3.17 address has not been excluded from the 192Network pool.
24
Refer to the exhibit. From the output of the show interfaces and ping commands, at which layer of the
OSI model is a fault indicated?
application
transport
network
data link
physical
25
What three questions can be answered using data gathered from a baseline on a new network?
(Choose three.)
Are areas of the network experiencing high error rates?
Will the disaster recovery procedures work correctly?
What parts of the network have the highest volume?
Does the organization require more network technicians?
How does the network perform during peak periods?
Are there any devices working at top capacity?
What networks are the most susceptible to security attacks?
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26
Which type of ACL will permit traffic inbound into a private network only if an outbound session has
already been established between the source and destination?
extended
reflexive
standard
time-based
27
Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. Host A has
sent a packet to Web Server. What is the destination IP address of the return packet from WebServer when received at R1?
10.1.1.2:80
10.1.1.2:1234
172.30.20.1:1234
172.30.20.1:3333
28
An administrator issues the command show interfaces s0/1/0 on a router that is configured for Frame
Relay. Which console output may indicate an LMI mismatch?
Serial0/1/0 is administratively down
Serial0/1/0 is up, line protocol is up
Serial0/1/0 is up, line protocol is down
Serial0/1/0 is down, line protocol is down
29
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A recently patched application server is experiencing response time problems. The network on which
the application server is located has been experiencing occasional outages that the network team
believes may be related to recent routing changes. Network and application teams have been notified
to work on their respective issues. Which statement applies to this situation?
Only results from the software package should be tested as the network is designed to accommodate the
proposed software platform.
Scheduling will be easy if the network and software teams work independently.
It will be difficult to isolate the problem if two teams are implementing changes independently.
Results from changes will be easier to reconcile and document if each team works in isolation.
30
Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B
has a Cisco router. After the commands that are shown are entered, R1 and R2 fail to establish thePVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. The LMI is successfully established at both
locations. Why is the PVC failing?
The PVC to R1 must be point-to-point.
LMI types must match on each end of a PVC.
The frame relay PVCs cannot be established between Cisco and non-Cisco routers.
The IETF parameter is missing from the frame-relay map ip 10.10.10.1 201 command.
31
Refer to the exhibit. Which VLAN will carry untagged traffic on FastEthernet 0/1?
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VLAN 1
VLAN 2
VLAN 11
VLAN 12
VLAN 30
VLAN 999
32
What is an accurate description of CHAP when used with PPP on a serial connection between tworouters?
A username and password are sent to the peer router, which replies with an accept or reject message.
A username and password are sent to the peer router. If these match the configuration in the peer, the peer inturn provides a username and password to the initiating router.
A challenge message is sent to the peer router, which responds with its username and a calculatedvalue based on a shared secret. This value is then compared by the challenger to its own calculations.
An encrypted password is sent to the peer router, which decrypts it and compares it to a shared secret. If the
decrypted passwords match, the peer sends the encrypted password back to the initiating router.
33
Where does a service provider assume responsibility from a customer for a WAN connection?
local loop
DTE cable on router
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demarcation point
demilitarized zone
34
Refer to the exhibit. An ACL called Managers already exists on this router. What happens if the
network administrator issues the commands as shown in the exhibit?
The commands are added to the end of the existing ACL.
The existing Managers ACL will be overwritten by the new ACL.
The router will output an error message and no changes will be made.
A duplicate Managers ACL will be created that will contain only the new commands.
35
Which statement is true about PAP in the authentication of a PPP session?
PAP uses a two-way handshake.
The password is unique and random.
PAP conducts periodic password challenges.
PAP uses MD5 hashing to keep the password secure.
36Which combination of Layer 2 protocol and authentication should be used to establish a link withoutsending authentication information in plain text between a Cisco and a non-Cisco router?
PPP with PAP
PPP with CHAP
HDLC with PAP
HDLC with CHAP
37
Which option correctly defines the capacity through the local loop guaranteed to a customer by theservice provider?
BE
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DE
CIR
CBIR
38Which wireless solution can provide mobile users with non line-of-sight broadband Internet access at
speeds comparable to DSL or cable?
Wi-Fi
WiMAX
satellite
Metro Ethernet
39
Refer to the exhibit. EIGRP has been configured as a routing protocol on the network. Users on the192.168.1.0/24 network should have full access to the web server that is connected to 192.168.3.0/24
but should not be allowed to telnet to router R3. Verifying the configuration, the networkadministrator realizes that users on network 192.168.1.0/24 can successfully telnet to the router. What
should be done to remedy the problem?
The ACL 101 statements 10 and 20 should be reversed.
The ACL 101 should be applied on R3 VTY lines 0 4 in the inbound direction.
The ACL 101 should be applied on R3 VTY lines 0 4 in the outbound direction.
The ACL 101 should be applied on R3 Serial0/0/1 interface in the outbound direction.
The ACL 101 statement 10 should be changed to: permit ip 192.168.1.0 0.0.0.255 any
40
What does an access control list determine when used with NAT on a Cisco router?
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addresses that are to be translated
addresses that are assigned to a NAT pool
addresses that are allowed out of the router
addresses that are accessible from the inside network
41Which IP address and wildcard mask combination can be used in an ACL statement to match the
172.16.0.0/30 network?
172.16.0.0 0.0.0.1
172.16.0.0 0.0.0.3
172.16.0.0 0.0.0.7
172.16.0.0 255.255.255.252
42
Which security solution has the responsibility of monitoring suspicious processes that are running on ahost and that might indicate infection of Trojan horse applications?
antivirus application
operating system patches
intrusion prevention system
Cisco Adaptive Security Appliance
43
Refer to the exhibit. A network administrator is trying to connect R1 remotely to make configurationchanges. Based on the exhibited command output, what will be the result when attempting to connectto R1?
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failure to connect due to Telnet not being enabled
failure to connect due to incomplete configuration for Telnet
a successful connection and ability to make configuration changes
a successful connection but inability to make configuration changes because of the absence of an enable secretpassword
44
Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2
are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2?
There is a Layer 2 loop.
The VTP domain names do not match.
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Only one switch can be in server mode.
S2 has a higher spanning-tree priority for VLAN 11 than S1 does.
45A technician has been asked to run the Cisco SDM one-step lockdown on a customer router. What
will be the result of this process?
Traffic is only accepted from and forwarded to SDM-trusted Cisco routers.
Security testing is performed and the results are saved as a text file stored in NVRAM.
All traffic that enters the router is quarantined and checked for viruses before being forwarded.
The router is tested for any potential security problems and all recommended security-related
configuration changes will be automatically applied.
46
Refer to the exhibit. Which data transmission technology is being represented?
TDM
PPP
HDLC
SLIP
47A network administrator is instructing a technician on best practices for applying ACLs. Which two
suggestions should the administrator provide? (Choose two.)
Named ACLs are less efficient than numbered ACLs.
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Standard ACLs should be applied inside the core layer.
Place standard ACLs as close to the destination as possible.
ACLs applied to outbound interfaces require fewer router resources.
Extended ACLs should be applied closest to the source that is specified by the ACL.
48
Refer to the exhibit. Which configuration command would result in the output in the exhibit?
ip nat inside source static 10.1.200.254 172.16.76.3
ip nat inside source static 10.1.200.254 192.168.0.10
ip nat inside source static 172.16.76.3 10.1.200.254
ip nat inside source static 172.16.76.3 192.168.0.10
ip nat inside source static 192.168.0.10 172.16.76.3
ip nat inside source static 192.168.0.10 10.1.200.254
49What are three important reasons to establish a network baseline? (Choose three.)
to determine the time it takes for the network to self recover from a failure
to determine which areas in the network are underutilized or overutilized
to determine the performance of the network during the normal hours of operation
to determine what thresholds should be set for the devices that need to be monitored
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to determine the areas in the network which should not be included in the monitoring process
to determine the number of users whose access to network resources should be restricted
50Which two statements are true about creating and applying access lists? (Choose two.)
There is an implicit deny at the end of all access lists.
One access list per port, per protocol, per direction is permitted.
Access list entries should filter in the order from general to specific.
The term “inbound” refers to traffic that enters the network from the router interface where the ACL is applied.
Standard ACLs should be applied closest to the source while extended ACLs should be applied closest to the
destination.
51While troubleshooting a problem with an e-mail server, an administrator observes that the switch port
used by the server shows “up, line protocol up”. The administrator cannot ping the server. At whichlayer of the OSI model is the problem most likely to be found?
application layer
network layer
data link layer
physical layer
52
Refer to the exhibit. Router RT is not receiving routing updates from router RTA. What is causingthe problem?
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The ip rip authentication key-chain command specifies exam rather than test.
The name of the keystring is not the name of the neighboring router.
The key chains are given the same name on both routers.
The passive-interface command was issued for RTA.
Domain Knowledge – Weighted Score
Max Points: 102
Earned Points: 97Percentage: 95.1%
Filed Under: CCNA 2012 Exam Answers
Comments
1. the one who honors God says:
December 30, 2011 at 6:19 pm
Just study hard and pay attention in class people! a lot of these blogs are off the mark. The exam is always
changing. Anything easy is not worth having. Luckily We had a professor who showed us these sites were
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suspect. you may pass the chapter assessments, but the exams are a whole different enchilada! Now there
are like 5 or 6 different exams for each course level! The cisco academy is now catching up to cheaters.Just study hared like I did. I got a “B” Thank you Jesus!!!
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