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Minggu, 01 Agustus 2010

EWAN Final Exam CCNA Exploration: Accessing the WAN (Version 4.0)

EWAN Final Exam CCNA Exploration: Accessing the WAN (Version
4.0)

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Final CCNA 4 (H)

1. Which encapsulation protocol when deployed on a Cisco router over a serial interface is only compatible with another Cisco router?

PPP
SLIP
xxxHDLC
Frame Relay

2. What is a characteristic feature of a worm?

xxxexploits a known vulnerability
attaches to executable programs
masquerades as a legitmate program
lies dormant until triggered by an event, time, or date

3.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.
xxxIPv4 is incompatible with RIPng

4.Which statement accurately describes a characteristic of a security policy?

xxxIt creates a basis for legal action if necessary.
It should not need altering once it is implemented.
It provides step-by-step procedures to harden routers and other network devices.
It is kept private from users to prevent the possibility of circumvention of security measures

5. Which characteristic of VPN technology prevents the contents of data communications from being read by unauthorized parties?

QoS
latency
reliability
xxxconfidentiality

6. Refer to the exhibit. A network administrator is configuring Frame Relay on router HQ. It is desired that each Frame Relay PVC between the routers be in a separate subnet. Which two commands on HQ will accomplish this task for the connection to R1? (Choose two.)

HQ(config)# interface S0/0/0
HQ(config)# interface S0/0/0.1 multipoint
xxxHQ(config)# interface S0/0/0.1 point-to-point
HQ(config-subif)# frame-relay interface dlci 103
HQ(config-subif)# frame-relay interface dlci 301
xxxHQ(config-if)# frame-relay map ip 172.16.1.1 255.255.255.0 301 broadcast

7. Refer to the exhibit. Router1 and Router2 are directly connected over a point-to-point serial link. Router1 initiates a PPP session with Router2. Which statement is true based on the configuration?

The password is sent in clear text.
The routers are unable to authenticate.
The username and password are sent encrypted.
xxxA hash value of the username and password are sent.

8. A technician has been asked to run Cisco SDM one-step lockdown on the router of a customer. What will be the result of this process?

Traffic is only forwarded from SDM-trusted Cisco routers.
Security testing is performed and the results are saved as a text file stored in NVRAM.
xxxThe router is tested for potential security problems and any necessary changes are made.
All traffic entering the router is quarantined and checked for viruses before being forwarded.

9. Which two statements are true about creating and applying access lists? (Choose two.)

xxxThere is an implicit deny at the end of all access lists.
xxxOne 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.

10. Refer to the exhibit. Company ABC expanded its business and recently opened a new branch office in another country. IPv6 addresses have been used for the company network. The data servers Server1 and 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 stack configuration. What solution should be deployed at the edge of the company network in order to successfully interconnect both offices?

a new WAN service supporting only IPv6
NAT overload to map inside IPv6 addresses to outside IPv4 address
xxxa 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 the rest of the inside IPv6 addresses

11. A company uses a PVC with a committed information rate (CIR) of 128 kb/s and a committed burst information rate (CBIR) of 64 kb/s. The link is used to periodically send updates at a rate of 144 kb/s. What will happen to the update traffic?

The traffic will be sent, but the company will be charged a penalty.
The traffic will be sent using the additional CBIR and will be guaranteed delivery.
xxxThe traffic will be dropped at the CO for exceeding the committed information rate.
The traffic will be sent, but the burst traffic will be marked for discard if congestion is encountered.

12. 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.
xxxPort Fa0/2 on S2 is assigned to the wrong VLAN.
S2 has the wrong IP address assigned to the VLAN30 interface.

13. A system administrator must provide Internet connectivity for ten hosts in a small remote office. The 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.
xxxConfigure dynamic NAT with overload.

14. 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
xxxnetwork
data link
physical

15. 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.
xxxThe VTP domain names do not match.
Only one switch can be in server mode.
S2 has a higher spanning-tree priority for VLAN 11 than S1 does.

16. Refer to the exhibit. What is the effect of the extended ACL when applied inbound on the S0/0/0 interface on R2?

All IP traffic will be permitted during the specified days and time range.
Both IP and Telnet traffic will be permitted during the specified days and time range.
Only Telnet traffic destined for 172.16.10.0/24 will be permitted during the specified days and time range.
xxxTelnet traffic will be permitted only during the specified days and time range. All other network traffic will be permitted any time.

17. Which three guidelines would help contribute to creating a strong password policy? (Choose three.)

Once a good password is created, do not change it.
xxxDeliberately misspell words when creating passwords.
xxxCreate passwords that are at least 8 characters in length.
xxxUse combinations of upper case, lower case, and special characters.
Write passwords in locations that can be easily retrieved to avoid being locked out.
Use long words found in the dictionary to make passwords that are easy to remember.

18. Refer to the exhibit. How is the TCP/IP configuration information specified by the default-router and dns-server commands made available?

The TCP/IP information is forwarded to a 10.0.1.3 to be supplied to DHCP clients.
The TCP/IP information is used by DNS clients to forward all data to the default gateway on R1 of 10.0.1.3.
The TCP/IP information is supplied to any DHCP client on the network connected to the FastEthernet 0/0 interface of R1.
The TCP/IP information is applied to each packet that enters R1 through the FastEthernet 0/0 interface that are hosts on the 10.0.1.0 /24 network except packets from addresses 10.0.1.2, 10.0.1.16, and 10.0.1.254.

19. Which variable is permitted or denied by a standard access control list?

protocol type
xxxsource IP address
source MAC address
destination IP address
destination MAC address

20. When configuring a Frame Relay connection, what is the purpose of Inverse ARP?

to assign a DLCI to a remote peer
to disable peer requests from determining local Layer 3 addresses
to negotiate LMI encapsulations between local and remote Frame Relay peers
xxxto create a mapping of DLCI to Layer 3 addresses that belong to remote peers

21. An issue of response time has recently arisen on an application server. The new release of a software package has also been installed on the server. The configuration of the network has changed recently. To identify the problem, individuals from both teams responsible for the recent changes begin to investigate the source of the problem. Which statement applies to this situation?

Scheduling will be easy if the network and software teams work independently.
xxxIt 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.
Only results from the software package should be tested as the network is designed to accommodate the proposed software platform.

22. What is the result when the command permit tcp 10.25.132.0 0.0.0.255 any eq smtp is added to a named access control list and applied on the inbound interface of a router?

TCP traffic with a destination to the 10.25.132.0/24 is permitted.
Only Telnet traffic is permitted to the 10.24.132.0/24 network
Ttraffic from 10.25.132.0/24 is permitted to anywhere on using any port.
xxxTraffic using port 25 from the 10.25.132.0/24 is permitted to all destinations.

23. At what point in the PPP connection process does the authentication phase occur?

after NCP establishes Layer 3 parameters
xxxbefore LCP begins the link establishment process
after the initial Configure-Request message from the link initiator
after the link initiator receives a Configure-Ack message from the responder

24. An administrator is unable to receive e-mail. While troubleshooting the problem, the administrator is able to ping the local mail server IP address successfully from a remote network and can successfully resolve the mail server name to an IP address via the use of the nslookup command. At what OSI layer is the problem most likely to be found?

physical layer
data link layer
network layer
xxxapplication layer

25. Refer to the exhibit. Which statement is true about the Frame Relay connection?

The Frame Relay connection is in the process of negotiation.
xxxA congestion control mechanism is enabled on the Frame Relay connection.
The “ACTIVE” status of the Frame Relay connection indicates that the network is experiencing congestion.
Only control FECN and BECN bits are sent over the Frame Relay connection. No data traffic traverses the link.

26. A light manufacturing company wishes to replace its DSL service with a non-line-of-sight broadband wireless solution that offers comparable speeds. Which solution should the customer choose?

Wi-Fi
satellite
xxxWiMAX
Metro Ethernet

27. Refer to the exhibit. This router is being configured to use SDM, but the SDM interface of the router cannot be accessed. What is the cause of the problem?

xxxThe 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.

28. Which option correctly defines the capacity through the local loop guaranteed to a customer by the service provider?

BE
DE
xxxCIR
CBIR

29.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
xxxDLCI 321
10.10.10.25
10.10.10.26
MAC address of the Orlando router

30. Where does a service provider assume responsibility from a customer for a WAN connection?

local loop
DTE cable on router
xxxdemarcation point
demilitarized zone

31. 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.)

xxxreduced jitter
reduced costs
xxxreduced latency
the ability to burst above guaranteed bandwidth
the ability to borrow unused bandwidth from the leased lines of other customers

32. 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.
xxxThe pool of addresses for the 192Network pool is configured incorrectly.
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.

33.A network administrator is tasked with maintaining two remote locations in the same city. Both locations use the same service provider and have the same service plan for DSL service. When comparing download rates, it is noticed that the location on the East side of town has a faster download rate than the location on the West side of town. How can this be explained?

The West side has a high volume of POTS traffic.
The West side of town is downloading larger packets.
xxxThe service provider is closer to the location on the East side.
More clients share a connection to the DSLAM on the West side.

34. Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers?

ATM
Frame Relay
xxxHDLC
PPP
SDLC

35. Which additional functionality is available on an interface when the encapsulation is changed from HDLC to PPP?

flow control
error control
xxxauthentication
synchronous communication

36. When NAT is in use, what is used to determine the addresses that can be translated on a Cisco router?

access control list
routing protocol
inbound interface
ARP cache

37. Refer to the exhibit. What statement is true about the core router devices?

They use multiport internetworking devices to switch traffic such as Frame Relay, ATM, or X.25 over the WAN.
They provide internetworking and WAN access interface ports that are used to connect to the service provider network.
They provide termination for the digital signal and ensure connection integrity through error correction and line monitoring.
xxxThey support multiple telecommunications interfaces of the highest speed and are able to forward IP packets at full speed on all of those interfaces.

38. Refer to the exhibit. A network administrator has issued the commands that are shown on Router1 and Router2. A later review of the routing tables reveals that neither router is learning the LAN network of the neighbor router. What is most likely the problem with the RIPng configuration?

The serial interfaces are in different subnets.
xxxThe RIPng process is not enabled on interfaces.
The RIPng processes do not match between Router1 and Router2.
The RIPng network command is missing from the IPv6 RIP configuration.

39. Which two protocols in combination should be used to establish a link with secure authentication between a Cisco and a non-Cisco router? (Choose two.)

HDLC
xxxPPP
xxxSLIP
PAP
CHAP

40. Refer to the exhibit. This serial interface is not functioning correctly. Based on the output shown, what is the most likely cause?

improper LMI type
interface reset
PPP negotiation failure
unplugged cable

41. Which statement is true about NCP?

Link termination is the responsibility of NCP.
xxxEach network protocol has a corresponding NCP.
NCP establishes the initial link between PPP devices.
NCP tests the link to ensure that the link quality is sufficient.

42. Refer to the exhibit. Which statement correctly describes how Router1 processes an FTP request packet that enters interface S0/0/0, and is destined for an FTP server at IP address 172.16.1.5?

The router matches the incoming packet to the statement that is created by access-list 201 permit ip any any command and allows the packet into the router.
The router reaches the end of ACL 101 without matching a condition and drops the packet because there is no statement that was created by access-list 101 permit ip any any command.
xxxThe router matches the incoming packet to the statement that was created by the access-list 101 permit ip any 172.16.1.0 0.0.0.255 command, ignores the remaining statements in ACL 101, and allows the packet into the router.
The router matches the incoming packet to the statement that was created by the access-list 201 deny icmp 172.16.1.0 0.0.0.255 any command, continues comparing the packet to the remaining statements in ACL 201 to ensure that no subsequent statements allow FTP, and then the router drops the packet.

43. Refer to the exhibit. RIPv2 has been configured on all routers in the network. Routers R1 and R3 have not received any RIP routing updates. What will fix the issue?

xxxEnable RIP authentication on R2.
Issue the ip directed-broadcast command on R2.
Change the subnet masks to 10.11.12.0/8 and 172.16.40.0/16 on R2.
Enable CDP on R2 so that the other routers will receive routing updates

44. Refer to the exhibit. What happens if the network administrator issues the commands shown when an ACL called Managers already exists on the router?

The commands overwrite the existing Managers ACL.
xxxThe commands are added at the end of the existing Managers ACL.
The network administrator receives an error stating that the ACL already exists.
The commands will create a duplicate Managers ACL containing only the new commands being entered.

45. Which security solution has the responsibility of monitoring suspicious processes that are running on a host and that might indicate infection of Trojan horse applications?

xxxantivirus application
operating system patches
intrusion prevention system
Cisco Adaptive Security Appliance

46. Which statement is true about wildcard masks?

A wildcard mask must be created by inverting the subnet mask.
A wildcard mask performs the same function as a subnet mask.
xxxA wildcard mask of 0.0.0.0 means the address should match exactly.
A wildcard mask uses a "1" to identify IP address bits that must be checked.

47. Refer to the exhibit. A network administrator is trying to backup the IOS software on R1 to the TFTP server. He receives the error message that is shown in the exhibit, and cannot ping the TFTP server from R1. What is an action that can help to isolate this problem?

Use correct source file name in the command.
Verify that the TFTP server software is running.
Make sure that there is enough room on the TFTP server for the backup.
xxxCheck that R1 has a route to the network where the TFTP server resides.

48. Refer to the exhibit. A network administrator is creating a prototype to verify the new WAN design. However, the communication between the two routers cannot be established. Based on the output of the commands, what can be done to solve the problem?

Replace the serial cable .
Replace the WIC on RA.
xxxConfigure RA with a clock rate command.
Issue a no shutdown interface command on RB.

49. Refer to the exhibit. From the output of the show interface commands, at which OSI layer is a fault indicated?

application
transport
network
xxxdata link
physical

50. 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
xxxreflexive
standard
time-based

51. Which IEEE 802.16 broadband wireless technology allows users to connect to the ISP at speeds comparable to DSL and cable?

Wi-Fi
satellite
xxxWiMAX
Metro Ethernet

52. Which option represents a best practice for applying ACLs?

Named ACLs are less efficient than numbered ACLs.
Standard ACLs should be applied inside the core layer.
ACLs applied to outbound interfaces use fewer router resources.
xxxExtended ACLs should be applied closest to the source that is specified by the ACL.

Jumat, 26 Maret 2010

Intrusion Prevention Fundamentals

An introduction to network attack mitigation with IPS

Where did IPS come from? How has it evolved?
How does IPS work? What components does it have?
What security needs can IPS address?
Does IPS work with other security products? What is the “big picture”?
What are the best practices related to IPS?
How is IPS deployed, and what should be considered prior to a deployment?

Intrusion Prevention Fundamentals offers an introduction and in-depth overview of Intrusion Prevention Systems (IPS) technology. Using real-world scenarios and practical case studies, this book walks you through the lifecycle of an IPS project–from needs definition to deployment considerations. Implementation examples help you learn how IPS works, so you can make decisions about how and when to use the technology and understand what “flavors” of IPS are available. The book will answer questions like:

Whether you are evaluating IPS technologies or want to learn how to deploy and manage IPS in your network, this book is an invaluable resource for anyone who needs to know how IPS technology works, what problems it can or cannot solve, how it is deployed, and where it fits in the larger security marketplace.

Understand the types, triggers, and actions of IPS signatures
Deploy, configure, and monitor IPS activities and secure IPS communications
Learn the capabilities, benefits, and limitations of host IPS
Examine the inner workings of host IPS agents and management infrastructures
Enhance your network security posture by deploying network IPS features
Evaluate the various network IPS sensor types and management options
Examine real-world host and network IPS deployment scenarios

This book is part of the Cisco Press® Fundamentals Series. Books in this series introduce networking professionals to new networking technologies, covering network topologies, example deployment concepts, protocols, and management techniques.

Includes a FREE 45-Day Online Edition

http://www.ciscopress.com/bookstore/product.asp?isbn=1587052393

Content Networking Fundamentals

A comprehensive introduction to the theory and practical applications of content networking

Get a strong introduction to the basic networking concepts necessary for content networking, including network address translation, IP multicast content delivery, quality of service, and streaming media
Master the application-layer protocols, including HTTP, SSL, RSTP, RTP and FTP
Design redundancy and high availability by using server load balancing, Domain Name System (DNS) directory services, Cisco DistributedDirector software, proximity-based load balancing, and global sticky databases
Learn to switch and offload encrypted content by importing, creating, and configuring certificates and keys in Secure Sockets Layer (SSL) termination devices
Examine how to configure routers with Web Cache Communication Protocol (WCCP) and to switch content requests to content engines for serving frequently requested objects
Learn how to configure caching, live push- and pull-splitting, content acquisitioning, and pre-positioning using Cisco Application and Content Networking System (ACNS) software

Content networking is the most popular technology used to enhance network and application performance. The growth of content networking has been driven by end-user demands for richer content and lowered response times. These demands have caused the field of content networking to flourish with technological advances. Today many companies use content networking to add a layer of intelligence to their systems, scaling server availability and optimizing content delivery.

Content Networking Fundamentals introduces you to content networking solutions and the underlying networking technologies that content networking uses to accelerate your applications in new and unique ways. You’ll discover various algorithms behind content networking and learn how the Cisco Systems® product suite implements them.

In this comprehensive guide, you start with a review of the protocols required for content networking, building your knowledge of introductory concepts and applications. From there, you delve into the components specific to content networking, with a focus on the content-aware Open Systems Interconnection (OSI) Layers 4 through 7. Numerous deployment examples help you understand the more advanced topics. You can use the configuration snapshots in this book as skeletal configurations for your production network.

Following the valuable lessons taught in Content Networking Fundamentals, you’ll be able to effectively design, deploy, maintain, and troubleshoot content networks.

http://www.ciscopress.com/bookstore/product.asp?isbn=1587052407

Firewall Fundamentals

The essential guide to understanding and using firewalls to protect personal computers and your network

An easy-to-read introduction to the most commonly deployed network security device
Understand the threats firewalls are designed to protect against
Learn basic firewall architectures, practical deployment scenarios, and common management and troubleshooting tasks
Includes configuration, deployment, and management checklists

Increasing reliance on the Internet in both work and home environments has radically increased the vulnerability of computing systems to attack from a wide variety of threats. Firewall technology continues to be the most prevalent form of protection against existing and new threats to computers and networks. A full understanding of what firewalls can do, how they can be deployed to maximum effect, and the differences among firewall types can make the difference between continued network integrity and complete network or computer failure. Firewall Fundamentals introduces readers to firewall concepts and explores various commercial and open source firewall implementations--including Cisco, Linksys, and Linux--allowing network administrators and small office/home office computer users to effectively choose and configure their devices. Firewall Fundamentals is written in clear and easy-to-understand language and helps novice users understand what firewalls are and how and where they are used. It introduces various types of firewalls, first conceptually and then by explaining how different firewall implementations actually work. It also provides numerous implementation examples, demonstrating the use of firewalls in both personal and business-related scenarios, and explains how a firewall should be installed and configured. Additionally, generic firewall troubleshooting methodologies and common management tasks are clearly defined and explained.

http://www.ciscopress.com/bookstore/product.asp?isbn=1587052210

ESwitching Final Exam - CCNA Exploration: LAN Switching and Wireless (Version 4.0) #2

26

Refer to the exhibit. A network administrator has segmented the network into two VLANs and configured Router1 for inter-VLAN routing. A test of the network, however, shows that hosts on each VLAN can only access local resources and not resources on the other VLAN. What is the most likely cause of this problem?

Switch port Fa0/1 is not trunking.
Router interface Fa0/0 is possibly down.
No routing protocol is configured on Router1.
One of the router subinterfaces is possibly down.

27 What will be the effect of the command S1# copy system:running-config tftp://172.16.2.155/tokyo-config?

The IOS will be copied to the TFTP server.
The configuration file named tokyo-config will overwrite the startup configuration file on S1.
The running configuration file on S1 will be saved via TFTP to a file named tokyo-config.
The contents of NVRAM on S1 will become the startup configuration file on the tokyo switch.

28 Using the command copy tftp:backup.cfg startup-config, an administrator downloaded a saved configuration from a TFTP server to a switch. Why does the administrator not detect any changes in the switch configuration after the download completes?

The command should have been copy startup-config tftp:backup.cfg.
A backup configuration from a TFTP server cannot be copied directly into the startup-config.
The command copy running-config startup-config should be used to save the changes on the switch.
Downloading to the startup-config requires the switch to be reloaded in order for the configuration to take effect.

29 What are two benefits of the IEEE 802.11n standard over the IEEE 802.11G? (Choose two.)

requires less equipment
provides improved range
permits increased data rates
has a single-input and a single-output
needs no hardware upgrade for compatibility

30

Refer to the exhibit. Switch SW2 was tested in a lab environment and then inserted into a production network without reloading its configuration. After the trunk link between SW1 and SW2 was brought up, all users lost connectivity to the network. What could be the source of the problem?

All the VLANs were pruned from the trunk port between SW1 and SW2.
SW1 and SW2 cannot be both set as VTP servers in the same VTP domain.
VTP configuration revision number of SW2 was higher than the configuration revision number of SW1.
The additional VLANs from SW2 created more VLANs than the VLAN database of SW1 could contain.

Assessment System

Take Assessment - ESwitching Final Exam - CCNA Exploration: LAN Switching and Wireless (Version 4.0)

31

Refer to the exhibit. Both switches are interconnected via a trunk link. Host A and host B are on the default VLAN but are not able to exchange traffic. What should be done to fix the problem?

Allow all VLANs on the trunk link.
Remove the native VLAN from the trunk.
Include a router or switch with Layer 3 capabilities.
Configure the same native VLAN on both ends of the trunk.

32 Which three statements are true regarding router-on-a-stick inter-VLAN routing? (Choose three.)

requires the use of subinterfaces on the router
requires an access link between the router and Layer 2 switch
more cost-efficient and scalable than using multiple physical interfaces
requires each subinterface to be configured with the no shutdown command
can impact performance if many VLANs compete for bandwidth on a single router interface
makes troubleshooting the inter-VLAN routing configuration much less complex than when using multiple physical interfaces

33

Refer to the exhibit. R1 is configured for traditional inter-VLAN routing. R1 can ping computer 3 but cannot ping computer 1. What is a possible cause for this failure?

S1 port Fa0/11 is in the wrong VLAN.
R1 does not have an active routing protocol.
The IP address of computer 1 is in the wrong logical network.
Router interface Fa0/0 has the wrong trunk encapsulation type configured.

34 While configuring a new switch, a network administrator configures the switch as an HTTP server. What benefits does this configuration provide?

This allows the switch to host web pages for the network.
This allows remote VPN connections to the switch over the Internet.
This is required if a web server or web farm is attached to the switch.
This allows web-based configuration tools to be used with the switch.

35

Refer to the exhibit. A new host needs to be connected to VLAN 1. Which IP address should be assigned to this new host?

192.168.1.11 /28
192.168.1.22 /28
192.168.1.33 /28
192.168.1.44 /28
192.168.1.55 /28

36

Refer to the exhibit. What does “LEARNING” mean as it relates to the Spanning Tree Protocol?

The switch is sending and receiving data frames.
The switch is not receiving BPDUs, but is sending and receiving data.
The switch is participating in the election process by forwarding the BPDUs it receives.
The switch is receiving BPDUs and populating the MAC address table, but not sending data.

37 Which two statements about a service set identifier (SSID) are true? (Choose two.)

provides strong wireless security
responsible for determining the signal strength
tells a wireless device to which WLAN it belongs
used to encrypt data sent across the wireless network
all wireless devices on the same WLAN must have the same SSID

38

Refer to the exhibit. The hosts connected to switch SW1 are not able to communicate with the hosts in the same VLANs connected to switch SW2. What should be done to fix the problem?

Configure VLANs with different VLAN IDs on switch SW2.
Reconfigure the trunk port on switch SW2 with static trunk configuration.
Introduce a Layer 3 device or a switch with Layer 3 capability in the topology.
Apply IP addresses that are in the same subnet to the interfaces used to connect SW1 and SW2.

39 When configuring a router to act as an SSH server, what should be configured before issuing the crypto key generate rsa command?

the security domain name
the VTP domain name
the IP domain name
the host name

40

Refer to the exhibit. Which switch will be elected as the root bridge of the spanning tree topology?

Cat-A
Cat-B
Cat-C
Cat-D

41 In which mode is a VTP switch operating if it has been configured to only forward VTP advertisements?

client
root
server
transparent

42 What is an efficient and cost effective way to minimize the frequency and effects of broadcast storms on an Ethernet LAN?

Connect each PC directly to a router port.
Use access control lists to filter broadcasts from the network.
Divide the computers into separate VLANs on the existing switches.
Divide the computers into separate workgroups using different physical switches.

43
Refer to the exhibit. The configuration steps that are listed in the exhibit have been entered in switch S1 via the console. Subsequent attempts to telnet to the switch are not successful. What is causing the problem?

The switch must be configured with SSH version 1.
The transport input command must specify Telnet access.
The RSA keys must be returned to zero before SSH will permit Telnet access.
The ip domain-name command must also be entered in line configuration mode for the vty lines.

44 Which device must be installed in each computer to allow a wireless connection to be established?

DSL modem
wireless NIC
wireless router
wireless access point

45
Refer to the exhibit. The Layer 2 switching design that is shown has been implemented in a campus environment that is using Spanning Tree Protocol. All inter-switch links that are shown are trunks. Whenever an inter-switch link fails, the network takes nearly a minute to completely converge. How can the convergence time be reduced?

Increase the capacity of the distribution and core trunk links to 10 Gb/s.
Add a trunk link that directly connects D1 and D2.
Use Layer 3 switching on the core switch.
Implement Rapid Spanning Tree Protocol.

Assessment System

Take Assessment - ESwitching Final Exam - CCNA Exploration: LAN Switching and Wireless (Version 4.0)

46
Refer to the exhibit. Router R-West and switch S-West1 are connected via a single ethernet cable between the router interface fa0/0 and the switch interface fa0/1. The router and switch have been configured with the commands that are displayed in the exhibit. The network administrator enters the show interfaces trunk command and receives the output as shown. What is the cause of the "not-trunking" status for switch port Fa0/1?

The trunk is established, but no VLANs have been configured to use it.
The router is missing the dynamic trunking protocol statements necessary to form a trunk.
Because the router does not support Dynamic Trunking Protocol, the trunk has not been established.
The router, the switch, or both must be configured with the dynamic desirable option for Dynamic Trunking Protocol to establish a trunk.

47 Which statement about STP network diameter is correct?

STP diameters are restricted by convergence times.
Layer 2 root elections should be optimized by adjusting BPDU timers to match network diameter.
Using lower bandwidth connections between switches will allow STP to have a larger network diameter.
Portfast can be used to increase the allowable switched network diameter because it disables the forward delay and maximum age timers.

48 Which statement is correct about STP architecture?

Spanning Tree Protocol will guarantee a loop free Layer 2 topology.
Spanning Tree Protocol guarantees the shortest path to destination networks.
The switch with the highest priority will be assigned the lowest BID in the root election.
The first step in the spanning-tree election process is to determine the root port.
To select designated ports, the spanning-tree algorithm must determine the longest contiguous path from the root bridge.

49

Refer to the exhibit. What will allow a host on VLAN 40 on switch X to communicate with a host in VLAN 40 on switch Y?

QoS
routing
trunking
VPN

50

Refer to the exhibit. The network administrator is planning five additional VLANs to be shared throughout the VTP domain on S3. What action should the administrator take before creating the additional VLANs?

Create the VLANs on a switch in VTP server mode and allow them to propogate to the other switches in the domain.
Modify the configuration revision to 10 to support the additional VLANs.
Enable the VTP pruning mode in order to create the VLANs on S3.
Enable the VTP v2 mode.

51 What identifier in the BPDU creates a unique BID for a switch?

IP address
MAC address
bridge priority
VLAN ID
port priority
52 What is the purpose of the switch command switchport access vlan 99?
to enable port security
to make the port operational
to assign the port to a particular VLAN
to designate the VLAN that does not get tagged
to assign the port to the native VLAN (VLAN 99)

Which of the following are primary functions of a router? (Choose two.)
	packet switching
	microsegmentation
	domain name resolution
	path selection
	flow control

A network administrator is in charge of two separate networks that share a single building. What device will be required to connect the two networks and add a common connection to the Internet that can be shared?
	hub
	router
	access point
	Ethernet switch

A router boots and enters setup mode. What is the reason for this?
	The IOS image is corrupt.
	Cisco IOS is missing from flash memory.
	The configuration file is missing from NVRAM.
	The POST process has detected hardware failure.

In a complex lab test environment, a router has discovered four paths to 192.168.1.0/24 via the use of the RIP routing process. Which route will be installed in the routing table after the discovery of all four paths?
	R 192.168.1.0/24 [120/3] via 192.168.110.1, 00:00:17, Serial0/1/0
	R 192.168.1.0/24 [120/2] via 192.168.200.1, 00:00:17, Serial0/0/0
	R 192.168.1.0/24 [120/1] via 192.168.100.1, 00:00:17, Serial0/0/1
	R 192.168.1.0/24 [120/4] via 192.168.101.1, 00:00:17, Serial0/1/1

Which three statements are true regarding the encapsulation and de-encapsulation of packets when traveling through a router? (Choose three.)
	The router modifies the TTL field, decrementing it by one.
	The router changes the source IP to the IP of the exit interface.
	The router maintains the same source and destination IP.
	The router changes the source physical address to the physical address of the exit interface.
	The router changes the destination IP to the IP of the exit interface.
	The router sends the packet out all other interfaces, besides the one it entered the router on.