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Hiển thị các bài đăng có nhãn CCNA v5.0 cisco. Hiển thị tất cả bài đăng
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CCNA 4 v5.0 Practice Final Exam Connecting Networks 2014

Thứ Ba, 15 tháng 4, 2014

CCNA 4 Practice Final Exam – Connecting Networks (Version 5.0) 2014



Which is a clientless VPN solution for mobile workers?
GRE
SSL*
SSH
IPsec

For a VPN, which technology provides secure remote access over broadband?
ADSL
QoS
IPsec*
LTE

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 the same rate/service plan. What is the explanation for why Company A reports higher download speeds than Company B?
Company B shares the conection to the DSLAM with more clients than Company A.
Company A only uses microfilters on branch locations.
Company A is closer to the service provider.*
Company B has a higher volume of POTS voice traffic than Company A.

How does an SNMP trap aid network monitoring and management?
It flags attempts to begin a DoS attack on the network.
It collects information for the management station by using polling devices.
It reports to the management station by responding to polls.
It sends an alert message to the management station when a threshold is reached.*
5

Refer to the exhibit. A PC at address 10.1.1.45 is unable to access the Internet. What is the most likely cause of the problem?
The inside and outside interfaces have been configured backwards.
The wrong netmask was used on the NAT pool.
The NAT pool has been exhausted.*
Access-list 1 has not been configured properly.
6

Refer to the exhibit. A network administrator has configured routers RTA and RTB, but cannot ping from serial interface to serial interface. Which layer of the OSI model is the most likely cause of the problem?
network
physical
application
data link*
transport

A user is unable to connect to the Internet. The network administrator decides to use the top-down troubleshooting approach. Which action should the administrator perform first?
Check the patch cable connection from the PC to the wall.
Run the tracert command to identify the faulty device.
Enter an IP address in the address bar of the web browser to determine if DNS has failed.*
Run the ipconfig command to verify the IP address, subnet mask, and gateway on the PC.
8

Refer to the exhibit. A network administrator has configured router Edge_Router as shown in the output. Connectivity is failing between Edge_Router and a non-Cisco router running Frame Relay. What should be done to repair this Layer 2 connectivity?
Modify the OSPF process-id from 10 to 1.
Issue the frame-relay lmi-type ansi command on interface serial 0/1/0.
Issue the ietf keyword when enabling Frame Relay on interface serial 0/1/0.*
Issue the broadcast keyword when performing static mapping on interface serial 0/1/0.
Correct the IP address used in the frame-relay map command.

What is an advantage of packet-switched technology over circuit-switched technology?
Packet-switched networks do not require an expensive permanent connection to each endpoint.
Packet-switched networks can efficiently use multiple routes inside a service provider network.*
Packet-switched networks usually experience lower latency than circuit-switched networks experience.
Packet-switched networks are less susceptible to jitter than circuit-switched networks are.
10 
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?
Interview departmental administrative assistants and determine if they think load time for web pages has improved.
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.
Conduct a performance test and compare with the baseline that was established previously.*
11 
Which statement describes cable?
The cable subscriber must purchase a cable modem termination system (CMTS)
Delivering services over a cable network requires downstream frequencies in the 50 to 860 MHz range, and upstream frequencies in the 5 to 42 MHz range.*
Each cable subscriber has dedicated upstream and downstream bandwidth.
Cable subscribers may expect up to 27 Mbps of bandwidth on the upload path.
12 
Which syslog entry has a severity code that indicates the most serious situation?
Mar 17 06:42:22: 10.1.1.1 %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to down*
Mar 17 06:43:02: 10.1.1.1 %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up
Mar 17 06:42:21: 10.1.1.1 %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on FastEthernet0/3 (not half duplex), with NA-1.30.foo.com FastEthernet0/24 (half duplex).
Mar 17 06:03:21: 10.1.1.1 %SYS-6-BOOTTIME: Time taken to reboot after reload = 551932 seconds
Mar 17 06:42:20: 10.1.1.1 %SYS-5-CONFIG_I: Configured from console by mwmwm on vty0 (192.168.254.5)
Mar 17 06:42:22: 10.1.1.1 %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down
13

Refer to the exhibit. R3 has the following configuration:
R3# show running-config
–some output text omitted–
interface serial0
bandwidth 128
ip address 192.168.11.2 255.255.255.0
encapsulation frame-relay
frame-relay map ip 192.168.11.2 30 broadcast
After the command R3# debug frame-relay packet is executed, a ping is issued from R3 to R1 but is unsuccessful. Based on the output of the debug command shown in the graphic and the router configuration, what is the problem?
An incorrect IP address exists in the map statement.*
No clock rate has been configured on interface s0.
The encapsulation frame-relay command is missing the broadcast keyword.
There is an incorrect DLCI number in the map statement
14 
A technician has been asked to configure a broadband connection for a teleworker. The technician has been instructed that all uploads and downloads for the connection must use existing phone lines. Which broadband technology should be used?
cable
ISDN
DSL*
POTS
15 
Which WAN technology uses a fixed payload of 48 bytes and is transported across both switched and permanent virtual circuits?
ISDN
metro Ethernet
Frame Relay
ATM*
16 
Which two statements about NetFlow are true? (Choose two.)
NetFlow can be used to collect performance indicators such as interface errors, CPU usage, and memory usage.
NetFlow traffic collectors use a “pull” based model to acquire traffic statistics from ports of interest.
NetFlow can be used to monitor traffic statistics, including packet payload content.
NetFlow is a Cisco-specific feature that enables the collection of detailed traffic profiles.*
NetFlow can be used to create baseline documentation.*
NetFlow is a network monitoring and event reporting tool.
17 
Which three items are normally included when a log message is generated by a syslog client and forwarded to a syslog server? (Choose three.)
community ID
checksum field
date and time of message*
ID of sending device*
length of message
message ID*
18 
Which statement is true about NCP?
NCP establishes the initial link between PPP devices.
NCP tests the link to ensure that the link quality is sufficient.
Each network protocol has a corresponding NCP.*
Link termination is the responsibility of NCP.
19 
What is IPsec?
a protocol that is used to create a VPN at Layer 2 of the OSI model
a 56-bit authentication and encryption method that must be used to create VPN tunnels
a means by which routers and VPN gateways read and forward packets with encrypted packet headers
a specification for the way in which a group of protocols and algorithms combine to create VPNs*
20
Launch PT Hide and Save PT
Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
Which message is displayed on the web browser?
PPP is working!*
Configured correctly!
PPP configured!
Well done!
21 
Which statement is true about the operation of a site-to-site VPN connection?
The data is encrypted by the VPN gateway at the sending side and decrypted by the target host.
The data is encrypted by the sending host and decrypted by the VPN gateway at the receiving side.
The data is encrypted and decrypted by VPN gateways at both the sending and receiving sides.*
The data is encrypted and decrypted by the sending and target hosts.
22

Refer to the exhibit. What type of Layer 2 encapsulation will be used for connection D on the basis of this configuration on a newly installed router:
RtrA(config)# interface serial0/0/0
RtrA(config-if)# ip address 128.107.0.2 255.255.255.252
RtrA(config-if)# no shutdown
PPP
HDLC*
Ethernet
Frame Relay
23 
What are two characteristics of DSL technology? (Choose two.)
Filters and splitters allow POTS and DSL traffic to share the same medium.*
DSL download rates are reduced by large volumes of POTS voice traffic.
Service providers deploy DSL in the local loop of the telephone network.*
DSL is a shared medium that allows many users to share bandwidth available from the DSLAM.
Uploads typically offer larger transfer rates than downloads.
24

Refer to the exhibit. A small office uses an ISR to provide connectivity for both wired and wireless computers. One day, a sales person who is using a laptop cannot connect to Server1 through the wireless network. A network technician attempts to determine if the problem is on the wireless or the wired network. The technician pings successfully from the wireless laptop to the default gateway IP address on the ISR. What should be the next troubleshooting step?
Ping from Server1 to its gateway IP address.*
Ping from Server1 to PC1.
Ping from the laptop to the Ethernet port on the cable modem.
Ping from the laptop to PC1
25 
What are two WAN connection enhancements that are achieved by implementing PPPoE? (Choose two.)
Encapsulating Ethernet frames within PPP frames is an efficient use of bandwidth.
DSL CHAP features are included in PPPoE.
PPP enables the ISP to assign an IP address to the customer WAN interface.*
An Ethernet link supports a number of data link protocols.
CHAP enables customer authentication and accounting.*
26 
A company has been assigned the 203.0.113.0/27 block of IP addresses by the ISP. The company has over 6000 internal devices. What type of NAT would be most appropriate for the employee workstations of the company?
dynamic NAT
dynamic NAT overload using the pool of addresses*
static NAT
port forwarding
PAT off the external router interface
27 
What are two significant benefits that are provided by IPsec? (Choose two.)
encapsulation*
encryption*
automatic creation of a private network
automatic creation of a public network
authentication
28 
What makes the Cisco EasyVPN application a useful tool for VPN implementation?
It ensures that remote workers actually use the VPN for connectivity.
It simplifies the configuration tasks for the device that is used as the VPN server.*
It allows a greater variety of network devices to be used for VPN connections.
It provides encryption algorithms unavailable in other systems.
29 
What is the purpose of the Cisco Enterprise Architecture?
It provides services and functionality to the core layer by grouping various components into a single component that is located in the access layer.
It replaces the three-layer hierarchical model with a flat network approach.
It reduces overall network traffic by grouping server farms, the management server, corporate intranet, and e-commerce routers in the same layer.
It provides an enterprise-wide system network architecture that helps protect, optimize, and grow the network infrastructure that supports the business processes of a company.*
30 
Which basic network module of the Enterprise Architecture is the fundamental component of a campus design?
services module
data center
enterprise edge
access-distribution*
31

Refer to the exhibit. An administrator is trying to configure PAT on R1, but PC-A is unable to access the Internet. The administrator tries to ping a server on the Internet from PC-A and collects the debugs that are shown in the exhibit. Based on this output, what is most likely the cause of the problem?
The inside and outside NAT interfaces have been configured backwards.
The NAT source access list matches the wrong address range.
The address on Fa0/0 should be 64.100.0.1.
The inside global address is not on the same subnet as the ISP.*
32 
Which statement best describes a WAN?
WAN is another name for the Internet.
A WAN is a public utility that enables access to the Internet.
A WAN interconnects LANs over long distances.*
A WAN is a LAN that is extended to provide secure remote network access.
33

Refer to the exhibit. A ping from R1 to 10.1.1.2 is successful, but a ping from R1 to any address in the 192.168.2.0 network fails. What is the cause of this problem?
There is no gateway of last resort at R1.
The serial interface between the two routers is down.
The static route for 192.168.2.0 is incorrectly configured.*
A default route is not configured on R1.
34

Refer to the exhibit. Based on the configuration of R1, which device is the inside host and what is the inside local address of this host?
PC-B with address 64.100.0.100
PC-A with address 64.100.0.100
PC-B with address 209.165.200.225*
PC-A with address 209.165.200.225
35 
Which three statements are true regarding the Frame Relay LMI? (Choose three.)
The LMI types supported by Cisco routers are CISCO and IETF.
The LMI uses reserved DLCIs to exchange messages between the DTE and DCE.*
The LMI type must always be manually configured.
The available LMI types are CHAP and PAP.
The LMI provides a virtual circuit (VC) status mechanism.*
The LMI type configured on the router must match the one used on the Frame Relay switch.*
36 
What type of installation is needed to view syslog messages?
A syslog client must be installed on a workstation.
Because any network equipment can interpret syslog messages, nothing special is needed to view them.
A syslog server must be installed on a router.
A syslog server must be installed on a workstation.*
37 
What are three Frame Relay congestion management mechanisms? (Choose three.)
BECN*
FECN*
DE*
DLCI
Inverse ARP
LMI
38 
What is the relationship between the DE and the CIR in Frame Relay?
The DE bit will indicate when the CIR committed burst size should be applied.
When the CIR on a given DLCI is exceeded, the DE bit of frames above the CIR is set.*
When the CIR is exceeded, an Inverse ARP DE message notifies the source to reduce frame transmission speed.
The XON/XOFF flow control mechanism sets the DE bit when the CIR is exceeded.
39 
What can cause a reduction in available bandwidth on a cable broadband connection?
distance from the central office of the provider
committed information rate
smaller cells
number of subscribers*
40 
The output of the show ip interface brief command indicates that Serial0 is up but the line protocol is down. What are two possible causes for the line protocol being in the down state? (Choose two.)
An incorrect default gateway is set on the router.
Keepalives are not being sent by the remote device.*
A network is missing from the routing protocol configuration.
The clock rate is not set on the DTE.
The encapsulation on the Serial0 interface is incorrect.*
41
Launch PT Hide and Save PT
Open the PT activity. Perform the tasks in the activity instructions and then answer the question.
What is the IP address or range of IP addresses that are used as the inside global address for packets that originate from PC1 and are going to the server?​
209.165.200.231 – 209.165.200.239
192.168.10.21
209.165.200.225 – 200.165.200.229*
192.168.10.1 – 192.168.10.254
209.165.200.231
42 
Which three algorithms can be used to encrypt user data in an IPSec VPN framework? (Choose three.)
AES*
SHA
Diffie-Hellman
DES*
ESP
3DES*
43 
An administrator needs to configure a router so that internal network servers are accessible from the Internet. Each server is configured with a private IPv4 address. What type of NAT should the administrator configure?
dynamic NAT
PAT
NAT overloading
static NAT*
44 
Which two Layer 1 requirements are outlined in the Data-over-Cable Service Interface Specification (DOCSIS)? (Choose two.)
channel widths*
modulation techniques*
maximum data rate
access method
compression techniques
45 
What are three parameters that are used by NetFlow to classify traffic? (Choose three.)
TOS field*
number of packets
port number*
ingress interface*
egress interface
number of bytes
46 
Which two products are part of the Cisco Collaboration Architecture? (Choose two.)
Cisco Unified Computing
Cisco Unified Communications*
Cisco Borderless End Point​
Cisco TelePresence​*
Cisco Virtual Private Network
47 
How many addresses will be available for dynamic NAT translation when a router is configured with the following commands?
Router(config)#ip nat pool TAME 209.165.201.23 209.165.201.30 netmask 255.255.255.224 
Router(config)#ip nat inside source list 9 pool TAME
31
24
9
10
8*
7
48 
In the Cisco Enterprise Architectures network design approach what is the purpose of the enterprise edge module?
to provide high-speed connectivity and protection for servers
to provide Internet, VPN, and WAN connections*
to forward traffic from one local network to another
to provide access to IP telephony services, wireless controller services, and unified services
49 
How does STDM allocate bandwidth on a serial connection?
It ensures that bandwidth is allocated to each channel or time slot regardless of whether the station using the channel has data to transmit.
It ensures each of the time slices are assigned to individual conversations.
It keeps track of conversations that require extra bandwidth. It then dynamically reassigns unused time slices on an as-needed basis.*
It statically assigns bandwidth based upon pre-assigned time slots.
50
Refer to the exhibit. While planning an upgrade, a network administrator uses the Cisco NetFlow utility to analyze data flow in the current network. What generated the most packets?
TCP-other*
UDP-DNS
TCP-Telnet
UDP-other
ICMP
Read more ...

CCNA 4 R&S Connecting Networks Chapter 5 v5.0 Exam Answers 2014

Thứ Ba, 15 tháng 4, 2014

CCNA 4 R&S Connecting Networks Chapter 5 v5.0 Exam Answers 2014

1 Typically, which network device would be used to perform NAT for a corporate environment?
DHCP server
host device
router
server
switch
2 What is the group of public IPv4 addresses used on a NAT-enabled router known as?
outside local addresses
inside local addresses
inside global addresses
outside global addresses
3 When NAT is employed in a small office, which address type is typically used for hosts on the local LAN?
private IP addresses
global public IP addresses
Internet-routable addresses
both private and public IP addresses
4 Which version of NAT allows many hosts inside a private network to simultaneously use a single inside global address for connecting to the Internet?
PAT
static NAT
dynamic NAT
port forwarding
5 Which type of NAT maps a single inside local address to a single inside global address?
dynamic
static
port address translation
overloading
6 Several key servers in an organization must be directly accessible from the Internet. What addressing policy should be implemented for these servers?
Use dynamic NAT to provide addresses for the servers.
Place all of the servers in their own Class C private subnet.
Use DHCP to assign addresses from the pool of Class B addresses.
Assign static internal addresses and public external addresses to each of the servers
7 What is a disadvantage of NAT?
There is no end-to-end addressing.
The router does not need to alter the checksum of the IPv4 packets.
The internal hosts have to use a single public IPv4 address for external communication.
The costs of readdressing hosts can be significant for a publicly addressed network.
8

Refer to the exhibit. What has to be done in order to complete the static NAT configuration on R1?
R1 should be configured with the command ip nat inside source static 209.165.200.1 192.168.11.11.
R1 should be configured with the command ip nat inside source static 209.165.200.200 192.168.11.11.
Interface S0/0/0 should be configured with the command ip nat outside.
Interface Fa0/0 should be configured with the command no ip nat inside.
9
Refer to the exhibit. R1 is configured for NAT as displayed. What is wrong with the configuration?
Access-list 1 is misconfigured.
NAT-POOL2 is not bound to ACL 1.
Interface Fa0/0 should be identified as an outside NAT interface.
The NAT pool is incorrect.
10 Which statement accurately describes dynamic NAT?
It always maps a private IP address to a public IP address.
It provides an automated mapping of inside local to inside global IP addresses.
It provides a mapping of internal host names to IP addresses.
It dynamically provides IP addressing to internal hosts.
11 A network administrator configures the border router with the command R1(config)# ip nat inside source list 4 pool corp. What is required to be configured in order for this particular command to be functional?
a NAT pool named corp that defines the starting and ending public IP addresses
an access list named corp that defines the private addresses that are affected by NAT
an access list numbered 4 that defines the starting and ending public IP addresses
ip nat outside to be enabled on the interface that connects to the LAN affected by the NAT
a VLAN named corp to be enabled and active and routed by R1
12 When dynamic NAT without overloading is being used, what happens if seven users attempt to access a public server on the Internet when only six addresses are available in the NAT pool?
No users can access the server.
The request to the server for the seventh user fails.
All users can access the server.
The first user gets disconnected when the seventh user makes the request.
13 A network engineer has configured a router with the command ip nat inside source list 4 pool corp overload. Why did the engineer use the overload option?
The company has more private IP addresses than available public IP addresses.
The company needs to have more public IP addresses available to be used on the Internet.
The company router must throttle or buffer traffic because the processing power of the router is not enough to handle the normal load of external-bound Internet traffic.
The company has a small number of servers that should be accessible by clients from the Internet.
14
Refer to the exhibit. What will be the effect of entering the command that is shown in the exhibit on R2 as part of the dynamic NAT configuration?
It will define a pool of addresses for translation.
It will identify an inside NAT interface.
It will bind NAT-POOL1 with ACL 1.
It will define the source ACL for the external interface.
15 Which configuration would be appropriate for a small business that has the public IP address of 209.165.200.225/30 assigned to the external interface on the router that connects to the Internet?
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat inside source list 1 interface serial 0/0/0 overload
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.0.2.1 192.0.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.0.2.1 192.0.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp overload
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.0.2.1 192.0.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp overload
ip nat inside source static 10.0.0.5 209.165.200.225
16 What are two required steps to configure PAT? (Choose two.)
Define a pool of global addresses to be used for overload translation.
Define a standard access list denying the addresses that should be translated.
Define the range of ports to be used.
Identify the inside interface.
Define a standard access list that allow the outside global addresses to be used.
17
Refer to the exhibit. What is the purpose of the command marked with an arrow shown in the partial configuration output of a Cisco broadband router?
defines which addresses can be translated
defines which addresses are allowed into the router
defines which addresses are assigned to a NAT pool
defines which addresses are allowed out of the router
18 What is the purpose of port forwarding?
Port forwarding allows an external user to reach a service on a private IPv4 address that is located inside a LAN.
Port forwarding allows users to reach servers on the Internet that are not using standard port numbers.
Port forwarding allows an internal user to reach a service on a public IPv4 address that is located outside a LAN.
Port forwarding allows for translating inside local IP addresses to outside local addresses.
19 What is a characteristic of unique local addresses?
They allow sites to be combined without creating any address conflicts.
They are designed to improve the security of IPv6 networks.
Their implementation depends on ISPs providing the service.
They are defined in RFC 3927.
20
Refer to the exhibit. Based on the output that is shown, what type of NAT has been implemented?
dynamic NAT with a pool of two public IP addresses
PAT using an external interface
static NAT with one entry
static NAT with a NAT pool
21
Refer to the exhibit. The NAT configuration applied to the router is as follows:
ERtr(config)# access-list 1 permit 10.0.0.0 0.255.255.255
ERtr(config)# ip nat pool corp 209.165.201.6 209.165.201.30 netmask 255.255.255.224
ERtr(config)# ip nat inside source list 1 pool corp overload
ERtr(config)# ip nat inside source static 10.10.10.55 209.165.201.4
ERtr(config)# interface gigabitethernet 0/0
ERtr(config-if)# ip nat inside
ERtr(config-if)# interface serial 0/0/0
ERtr(config-if)# ip nat outside
Based on the configuration and the output shown, what can be determined about the NAT status within the organization?
Dynamic NAT is working, but static NAT is not.
Static NAT is working, but dynamic NAT is not.
NAT is working.
Not enough information is given to determine if both static and dynamic NAT are working. *
22 Based on the configuration and the output shown, what can be determined about the NAT status within the organization?
NAT is working.
Static NAT is working, but dynamic NAT is not.
Dynamic NAT is working, but static NAT is not.
Not enough information is given to determine if both static and dynamic NAT are working.
23
Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
What problem is causing PC-A to be unable to communicate with the Internet?
The static route should not reference the interface, but the outside address instead.
This router should be configured to use static NAT instead of PAT.
The ip nat inside source command refers to the wrong interface.
The access list used in the NAT process is referencing the wrong subnet.
The NAT interfaces are not correctly assigned.
24
Place the options in the following order: 
– not scored – 
step 5 
step 2 
step 4 
step 1 
step 3
25 
What are two of the required steps to configure PAT? (Choose two.)
Create a standard access list to define applications that should be translated.
Identify the inside interface.*
Define the range of source ports to be used.
Define the hello and interval timers to match the adjacent neighbor router.
Define a pool of global addresses to be used for overload translation.*
Read more ...

CCNA 4 R&S Connecting Networks Chapter 4 v5.0 Exam Answers 2014

Thứ Ba, 15 tháng 4, 2014

CCNA 4 R&S Connecting Networks Chapter 4 v5.0 Exam Answers 2014

1.
What is a characteristic of Frame Relay that provides more flexibility than a dedicated line?
Customers use dedicated circuits in increments of 64 kb/s.
Dedicated physical circuits are installed between each site.
The Frame Relay cloud allocates as much bandwidth as required to active PVCs to maintain the connection.
One router WAN port can be used to connect to multiple destinations.
2
What are the two major criteria that constitute the cost of a Frame Relay circuit? (Choose two.)
QoS
end-to-end connectivity
local loop
required bandwidth
circuit management fees
3
A router interface connects to a Frame Relay network over a preconfigured logical circuit that does not have a direct electrical connection from end to end. Which type of circuit is being used?
SVC
hub and spoke
full mesh
dedicated leased line
PVC
4
Which Frame Relay topology provides a connection from every site to every other site and maintains a high amount of reliability?
hub and spoke
partial mesh
full mesh
star
5
Which technology allows a Layer 3 IPv4 address to be dynamically obtained from a Layer 2 DLCI?
Neighbor Discovery
Address Resolution Protocol
Inverse Neighbor Discovery
Inverse Address Resolution Protocol
6
A network administrator has statically configured the LMI type on the interface of a Cisco router that is running Cisco IOS Release 11.2. If the service provider modifies its own LMI type in the future, what step must the network administrator take?
The network administrator must modify the keepalive time interval to maintain connectivity with the LMI type of the service provider.
The network administrator does not have to do anything, because all LMI types are compatible with one another.
The network administrator must statically set the LMI type to be compatible with the service provider.
The network administrator simply has to verify connectivity with the provider, because the router has an LMI autosensing feature that automatically detects the LMI type.
7
Which two functions are provided by the Local Management Interface (LMI) that is used in Frame Relay networks? (Choose two.)
mapping of DLCIs to network addresses
error notification
congestion notification
simple flow control
exchange of information about the status of virtual circuits
8
Which parameter would be specified in a Frame Relay provider contract for a particular company?
DE
QoS
Inverse ARP enabled/disabled
CIR
9
Which three notification mechanisms are used when congestion is present in a Frame Relay network? (Choose three.)
DE
BECN
inverse ARP
CIR
FECN
DLCI
10
Why would a customer request a Frame Relay circuit with a CIR of zero?
to have a circuit used for network management traffic
to have a backup circuit for critical data transmissions
to have better QoS
to have a link with reduced costs
to have a circuit used for voice traffic
11
Which provider-negotiated parameter would allow a customer to send data above the rate of the bandwidth specified by the CIR?
DE
FECN
Be
Bc
12
What is the purpose of applying the command frame-relay map ip 10.10.1.2 110 broadcast?​
to support IPv6 traffic over the NBMA network by using DLCI 110
to allow Frame Relay frames to be broadcast over DLCI 110​
to allow Frame Relay frames to be broadcast toward host 10.10.1.2
to allow Frame Relay frames to be broadcast on all Frame Relay interfaces
to configure a device with a static Frame Relay map that also allows the forwarding of routing updates
13
Refer to the exhibit. Which two statements are correct? (Choose two.)
The IPv4 address of interface S0/1/0 on RA is 192.168.1.2.
The IPv4 address of interface S0/1/1 on RB is 192.168.1.2.
The DLCI that is attached to the VC on RA to RB is 62.
The DLCI that is attached to the VC on RB to RA is 62.
The Frame Relay map was set by using the command frame-relay map.
14

Refer to the exhibit. Which statement is true about Frame Relay traffic on R1?
Traffic that exits subinterface Serial 0/0/0.102 is marked with DLCI 201.
Traffic on Serial 0/0/0 is experiencing congestion between R1 and the Frame Switch.
Traffic that is mapped to DLCI 201 will exit subinterface Serial 0/0/0.201.
Frames that enter router R1 from a Frame Relay neighbor will have DLCI 201 in the frame header.
15
Which three actions can be taken to solve Layer 3 routing protocol router reachability issues when using Frame Relay? (Choose three.)
Use subinterfaces.
Disable Inverse ARP.
Use a full mesh topology.
Use the keyword cisco as the LMI type.
Disable split horizon.
Configure static DLCI mappings.
16
When would the multipoint keyword be used in Frame Relay PVCs configuration?
when multicasts must be supported
when using physical interfaces
when participating routers are in the same subnet
when global DLCIs are in use
17
A network engineer has issued the interface serial 0/0/1.102 point-to-point command on a router that will be communicating with another router over a Frame Relay virtual circuit that is identified by the DLCI 102. Which two commands would be appropriate for the network engineer to issue next? (Choose two.)
no shutdown
no ip address
encapsulation frame relay
ip address 10.1.1.10 255.255.255.252
frame-relay interface-dlci 102
18
Which two Frame Relay router reachability issues are resolved by configuring logical subinterfaces? (Choose two.)
LMI status inquiry messages sent to the network are not received.
Inverse ARP fails to associate all IP addresses to the correct DLCIs.
Frame Relay is unable to map a remote IP address to a DLCI.
Distance vector routing protocols are unable to forward routing updates back out the incoming interface to other remote routers.
Link-state routing protocols are unable to complete neighbor discovery.
19

Refer to the exhibit. A network administrator has implemented the show interfaces serial 0/1/0 command. What can be verified from the displayed output?
Router R1 connects to multiple sites through the serial 0/1/0 interface.
Router R1 is forwarding traffic on interface serial 0/1/0 using the local DLCI 1023.
Router R1 is not using the default LMI type.​
Router R1 has been configured with Frame Relay via the ietf keyword.
20
The show frame-relay pvc command is best utilized to display the number for which type of packets that are received by the router?
FECN and BECN messages
Inverse Neighbor Discovery messages
Inverse ARP messages
LMI status messages
21

Refer to the exhibit. A network administrator is configuring Frame Relay subinterfaces on R1. A distance vector routing protocol has also been configured. Data is routing successfully from R1 to networks that are connected to R2, R3, and R4, but routing updates between R2 and R3 are failing. What is the possible cause of this failure?
Split horizon is preventing successful routing table updates on the multipoint link.
Multipoint Frame Relay networks cannot be used with this IP addressing scheme.
Subinterfaces cannot be used on multipoint Frame Relay links.
Two DLCI identifiers cannot be configured on one subinterface.
22
Refer to the exhibit. A network administrator issues the show frame-relay map command to troubleshoot the Frame Relay connection problem. Based on the output, what is the possible cause of the problem?
The S0/0/1 interface of the R2 router is down.
The IP address on S0/0/1 of R3 is configured incorrectly.
Inverse ARP is providing false information to the R1 router.
The S0/0/1 interface of the R2 router has been configured with the encapsulation frame relay ietfcommand.
The Frame Relay map statement on the R3 router for the PVC to R2 is configured with an incorrect DLCI number.
23
Fill in the blank. Use an acronym.
The Frame Relay     “DLCI”      identifies a connection from one endpoint to a remote destination.
24
Fill in the blank.
The   encapsulation frame-relay    “ietf”        command enables Frame Relay encapsulation and allows connection to a device from a different vendor.
25 
Place the options in the following order: 
[+] customers pay for an end-to-end connection 
[+] customers do not share the line 
[+] requires more equipment to purchase and maintain 
[+] used in one-to-one network link only
[#] used in one-to-many networks 
[#] uses virtual circuits 
[#] customers share bandwidth
[+] Order does not matter within this group.
[#] Order does not matter within this group.
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