ccna final

of 31/31
1. Which two statements are true about IPv6 link local addresses? (Choose two.) They begin with the 2000::/3 prefix. They begin with the FE80::/10 prefix. They are assigned by IANA to an organization. They must be manually configured by the administrator. They are assigned to a host by a stateless autoconfiguration process. 2. Refer to the exhibit. What is another way to represent this IPv6 address? 2031::130F::9C0::130B 2031::130F::9C0:0:130B 2031:0:130F::9C0::130B 2031:0:130F::9C0:0:130B 3. 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. 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. 4. What will be the result of adding the command ip dhcp excluded-address 10.10.4.1 10.10.4.5 to the configuration of a local router that has been configured as a DHCP server? Traffic that is destined for 10.10.4.1 and 10.10.4.5 will be dropped by the router. Traffic will not be routed from clients with addresses between 10.10.4.1 and 10.10.4.5. The DHCP server will not issue the addresses ranging from 10.10.4.1 to 10.10.4.5. The router will ignore all traffic that comes from the DHCP servers with addresses 10.10.4.1 and 10.10.4.5. 5. Refer to the exhibit. PC1, PC2, and PC3 are configured with dynamic address assignments. PC2 is assigned an IP address from the DHCP server. What would account for the IP addresses that are currently assigned to PC1 and PC3? Switch S2 port Fa0/12 is configured for full-duplex. These addresses were included in the DHCP server pools. Router R1 has a misconfigured IP address on interface Fa1/0. R1 interface Fa0/0 is not in the same network as the DHCP server. R1 interfaces Fa0/0 and Fa1/0 do not include the ip helper-address command. 6. 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 Web Server when received at R1? 10.1.1.2:80 10.1.1.2:1234 172.30.20.1:1234 172.30.20.1:3333 7. 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

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1. Which two statements are true about IPv6 link local addresses? (Choose two.) They begin with the 2000::/3 prefix. They begin with the FE80::/10 prefix. They are assigned by IANA to an organization. They must be manually configured by the administrator. They are assigned to a host by a stateless autoconfiguration process. 2. Refer to the exhibit. What is another way to represent this IPv6 address? 2031::130F::9C0::130B 2031::130F::9C0:0:130B 2031:0:130F::9C0::130B 2031:0:130F::9C0:0:130B 3. 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. 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. 4. What will be the result of adding the command ip dhcp excluded-address 10.10.4.1 10.10.4.5 to the configuration of a local router that has been configured as a DHCP server? Traffic that is destined for 10.10.4.1 and 10.10.4.5 will be dropped by the router. Traffic will not be routed from clients with addresses between 10.10.4.1 and 10.10.4.5. The DHCP server will not issue the addresses ranging from 10.10.4.1 to 10.10.4.5. The router will ignore all traffic that comes from the DHCP servers with addresses 10.10.4.1 and 10. 10.4.5. 5. Refer to the exhibit. PC1, PC2, and PC3 are configured with dynamic address assignments. PC2 is assigned an IP address from the DHCP server. What would account for the IP addresses that are currently assigned to PC1 and PC3? Switch S2 port Fa0/12 is configured for full-duplex. These addresses were included in the DHCP server pools. Router R1 has a misconfigured IP address on interface Fa1/0. R1 interface Fa0/0 is not in the same network as the DHCP server. R1 interfaces Fa0/0 and Fa1/0 do not inc lude the ip helper-address command. 6. 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 Web Server when received at R1? 10.1.1.2:80 10.1.1.2:1234 172.30.20.1:1234 172.30.20.1:3333 7. 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

8. At what physical location does the responsibilty for a WAN connection change from the user to the service provider? demilitarized zone (DMZ) demarcation point local loop cloud 9. Which additional functionality is available on an interface when the encapsulation is changed from HDLC t o PPP? flow control error control authentication synchronous communication 10. Which statement accurately describes a role that is played in establishing a WAN connection? ISDN and ATM are circuit-switched technologies that are used to establish on demand a path through the service provider network. Data link layer protocols like PPP and HDLC define how data is encapsulated for transmission across a WAN link. A packet-switching network establishes a dedicated circuit between nodes for the duration of the communication session. Frame Relay switches are normally considered to be customer premises equipment (CPE) and are maintained by local administrators. 11. Which data link layer encapsulation protocol is used by default for serial connections between two Cis co routers? ATM Frame Relay HDLC PPP SDLC 12. 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. Configure RA with a clock rate command. Issue a no shutdown interface command on RB. 13. Which protocol is used to authenticate connections over serial links securely? CHAP HDLC SLIP PAP 14. 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. 15. What is an accurate description of CHAP when used with PPP on a serial connection between two routers?

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 in turn 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 calculated value 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. 16. Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause? interface reset unplugged cable improper LMI type PPP negotiation failure 17. 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 to create a mapping of DLCI to Layer 3 addresses that belong to remote peers 18. 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 19. Refer to the exhibit. What is placed in the address field in t he header of a frame that will travel from the San Jose router to the DC router? DLCI 103 DLCI 301 172.16.1.18 172.16.1.19 20. Which option correctly defines the capacity through the local loop guaranteed to a customer by the service provider? BE DE CIR CBIR 21. When Frame Relay encapsulation is used, what feature provides flow control and exchanges information about the status of virtual circuits? LCP LMI DLCI Inverse ARP 22. 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 the PVC. 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. 23. Refer to the exhibit. You are a network administrator who has been 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? HQ(config-subif)# frame-relay map ip 172.16.1.1 301 broadcast on Serial 0/0/0.1 HQ(config-subif)# frame-relay map ip 172.16.2.2 302 broadcast on Serial 0/0/0.2 HQ(config-subif)# frame-relay map ip 172.16.1.1 103 broadcast on Serial 0/0/0.1 HQ(config-subif)# frame-relay map ip 172.16.2.2 203 broadcast on Serial 0/0/0.2 HQ(config-subif)# frame-relay interface-dlci 103 on Serial 0/0/0.1 HQ(config-subif)# frame-relay interface-dlci 203 on Serial 0/0/0.2 HQ(config-subif)# frame-relay interface-dlci 301 on Serial 0/0/0.1 HQ(config-subif)# frame-relay interface-dlci 302 on Serial 0/0/0.2 24. Refer to the exhibit. Which statement is true about the Frame Relay connection? The Frame Relay connection is in the process of negotiation. A 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. 25. Which IEEE 802.16 broadband wireless technology allows users to connect to the ISP at speeds comparable to DSL and cable? Wi-Fi satellite WiMAX Metro Ethernet 26. What are two main components of data confidentiality? (Choose two.) checksum digital certificates encapsulation encryption hashing 27. 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. 28. From observing lots of port scans and ping sweeps on the company network, an administrator has determined that an edge router is experiencing an attack. These exploits are examples of what type of network attack? DoS access reconnaissance man-in-the-middle 29. A network administrator determines that falsified routing information is propagatin g through the network. What action can be used to address this threat? Update the IOS images. Change console passwords. Employ end-user authentication. Configure routing protocol authentication.

30. Refer to the exhibit. Which statement is true about the c onfiguration of R1? The remote session is encrypted. A password is sent in plain text. A connection that is using secure HTTP is enabled. A local username database is used for authentication. 31. What can a network administrator do to recover from a lost r outer password? use the copy tftp: flash: command boot the router to bootROM mode and enter the b command to load the IOS manually telnet from another router and issue the show running-config command to view the password boot the router to ROM monitor mode and configure the router to ignore the startup configuration when it initializes 32. 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. Check that R1 has a route to the network where the TFTP server resides. 33. Refer to the exhibit. A network administrator is considering updating the IOS on Router1. What version of IOS is currently installed on Router1? 1 12.4 15 1841 34. 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. A 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. 35. 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 36. 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 37. A technician is editing and reapplying ACL 115 to a router, what is the result of adding the command access list 115 permit tcp any 172.16.0.0 0.0.255.255 established to the ACL when it is reapplied to the router? All traffic that comes from 172.16.0.0/16 will be allo wed. All TCP traffic that is destined for 172.16.0.0/16 is permitted. Any SYN packets that are sent to 172.16.0.0/16 will be permitted. Responses to traffic that originates from the 172.16.0.0/16 network are allowed.

38. Refer to the exhibit. The network a dministrator creates a standard access control list to prohibit traffic from the 192.168.1.0/24 network from reaching the 192.168.2.0/24 network while still permitting Internet access for all networks. On which router interface and in which direction shoul d it be applied? interface Fa0/0, inbound interface Fa0/0, outbound interface Fa0/1, inbound interface Fa0/1, outbound 39. 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. Extended ACLs should be applied closest to the source that is specified by the ACL. 40. Refer to the exhibit. Which statement correctly describes how Router1 pro cesses 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. The 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. 41. A network administrator has moved the company intranet web server from a switch port to a dedicated router interface. How can the administrator determine how this change has affected performance and availability on the company intranet? Conduct a performance test and compare with the baseline that was established previously. Determine performance on the intranet by monitoring load times of company web pages from remote sites. 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. 42. Technicians from Company A and Company B are comparing DSL transfer rates at their respective companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. Company A, however, reports higher download speeds than Company B. Which option best explains the reason for Company A having the higher download speeds? Company A only uses microfilters on branch locations. Company B has a higher volume of POTS voice traffic than does Company A. Company B shares the connection to the DSLAM with a larger number of clients than Company A shares. The length of the local loop between Company A and the CO is shorter than the length of the local loop between Company B and CO. 43. Which characteristic of VPN technology prevents the contents of data communications from being read by unauthorized parties? QoS latency reliability confidentiality

44. 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 te am works in isolation. 45. Because of a remote-procedure call failure, a user is unable to access an NFS server. At what layer of the TCP/IP model does this problem occur? network layer data link layer physical layer application layer 46. Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use at branch office LANs. If VLSM is used, what mask should be used for addressing hosts at Branch4 with minimal waste from unused addresses? /19 /20 /21 /22 /23 /24 47. 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. 48. 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. Only one switch can be in server mode. S2 has a higher spanning-tree priority for VLAN 11 than S1 does. 49. Refer to the exhibit. Routers R1 and R2 have been configured with EIGRP in the same autonomous system. Computers PC1 and PC2 are not able to ping each other. Further investigation has revealed that the route to 192.168.10.0 is missing from the routing table on R2. What is the cause of the problem? The networks are not correctly summarized. The FastEthernet interfaces on R1 are configured as passive. The network statements on R2 are incorrectly configured. EIGRP on R1 does not recognize the 192.168.10.0 network. 50. 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? Enable 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.

SET II

CCNA Exploration 4 Final Exam AnswersMay 29th, 2010 by admin.

1.

Refer to the exhibit. What is the meaning of the term dynamic in the output of the command? The bandwidth capability of the interface increases and decreases automatically based on BECNs. The Serial0/0/1 interface acquired 172.16.3.1 from a DHCP server. The mapping between DLCI 100 and 172.16.3.1 was learned through Inverse ARP. DLCI 100 will automatically adapt to changes in the Frame Relay cloud.

2.

Refer to the exhibit. What can be concluded from the exhibited output of thedebug ip nat command? The 10.1.1.225 host is exchanging packets with the 192.168.0.10 host. The native 10.1.200.254 address is being translated to 192.168.0.10.

The 192.168.0.0/24 network is the inside network. Port address translation is in effect.

3. Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers? ATM Frame Relay HDLC PPP SDLC

4. Which technology is used to dynamically map next hop, network layer addresses to virtual circuits in a Frame Relay network? Inverse ARP LMI DLCI FECN

5.

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 the web server. What is the destination IP address of the return packet from the web server? 10.1.1.2:1234 172.30.20.1:1234

172.30.20.1:3333 192.168.1.2:80

6. A network technician analyzes the network and notices late collisions. The collisions occur accompanied by jabber that originates from the server. What is the likely cause of the problem? faulty switch port web server CPU overload faulty NIC in the web server misconfiguration of web server services

7. What is the result of adding the global command service password-encryption to the configuration of a router? Line passwords are encrypted with type 7 encryption. Enable passwords are encrypted with type 5 encryption. All services must provide an encrypted password to function. Only encrypted messages are allowed for router communication.

8. Which three physical network problems should be checked when a bottom -up troubleshooting approach has been chosen to troubleshoot network performance? (Choose three.) cable connectivity high collision counts STP failures and loops address mapping errors high CPU utilization rates excess packets that are filtered by the firewall

9.

Refer to the exhibit. A network administrator is trying to connect R1 remotely to make configuration changes. Based on the exhibited command output, what will be the result when attempting to connect to R1? 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 a bsence of an enable secret password

10.

Refer to the exhibit. Which data transmission technology is being represented? TDM

PPP HDLC SLIP

11. 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

12. 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

13. 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. 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. Only results from the software package should be tested as the network is designed to accommodate the proposed software platform.

14.

Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use at branch office LANs. If VLSM is used, what mask should be used for addressing hosts at Branch4 with minimal waste from unused addresses? /19 /20 /21 /22 /23 /24

15. Which IEEE 802.16 broadband wireless technology allows users to connect to the ISP at speeds comparable to DSL and cable? Wi-Fi satellite WiMAX Metro Ethernet

16.

Refer to the exhibit. Based on the output as shown, which two statements correctly define how the router will treat Telnet traffic that comes into interface FastEthernet 0/1? (Choose two). Telnet to 172.16.10.0/24 is denied. Telnet to 172.16.20.0/24 is denied. Telnet to 172.16.0.0/24 is permitted. Telnet to 172.16.10.0/24 is permitted. Telnet to 172.16.20.0/24 is permitted.

17. What is tunneling? using digital certificates to ensure that data endpoints are authentic creating a hash to ensure the integrity of data as it traverses a network using alternate paths to avoid access control lists and bypass security measures encapsulating an entire packet within another packet for transmission over a network

18. What functionality do access control lists provide in the implementation of dynamic NAT on a Cisco router? define which addresses can be translated define which addresses are assigned to a NAT pool define which addresses are allowed out the router define which addresses can be accessed from the inside network

19. 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.

20.

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? Enable 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.

21. Which two statements are true about IPv6 link local addresses? (Choose two.) They begin with the 2000::/3 prefix. They begin with the FE80::/10 prefix. They are assigned by IANA to an organization. They must be manually configured by the administrator. They are assigned to a host by a stateless autoconfiguration process.

22. An administrator learns of an e-mail that has been received by a number of users in the company. This e-mail appears to come from the office of the administrator. The e-mail asks the users to confirm their account and password information. Which type of security threat does this e-mail represent? cracking phishing phreaking spamming

23. Which statement is true about NCP? Link termination is the responsibility of NCP. Each 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.

24. Where does a service provider assume responsibility from a customer for a WAN conne ction? local loop DTE cable on router demarcation point demilitarized zone

25.

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

26. Refer to the exhibit. Which statement correctly describes how Router1 processes an FTP request that enters interface s0/0/0 and is destined for an FTP server at IP address 192.168.1.5? The router matches the incoming packet to the statement that was created by the access-list 201 deny icmp 192.168.1.0 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. 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 the access-list 101 permit ip any any command. The router matches the incoming packet to the statement that was created by the access-list 101 permit ip any 192.168.1.0 0.0.0.255 command and allows the packet into the router. It matches the incoming packet to the statement that was created by theaccess-list 201 permit ip any any command and allows the packet into the router.

27.

Refer to the exhibit. Every time the administrator reboots this router, the boot process ends in setup mode. What is a possible problem? There is insufficient RAM for the IOS to load on this router. A password recovery process should be done on this router. The bootstrap version and the version of the IOS are different. The IOS image is damaged and must be reloaded using tftpdnld. The configuration register is set to ignore the startup configuration.

28. Compared with IDS systems, what can IPS systems do to provide further protection of computer systems? detect potential attacks stop the detected attack from executing update OS patches for computer systems scan computer systems for viruses and spyware

29. Which IP address and wildcard mask would be used in an ACL to block traffic from all hosts on the same subnet as host 192.168.16.43/28? access-list 10 deny 192.168.16.0 0.0.0.31 access-list 10 deny 192.168.16.16 0.0.0.31

access-list 10 deny 192.168.16.32 0.0.0.16 access-list 10 deny 192.168.16.32 0.0.0.15 access-list 10 deny 192.168.16.43 0.0.0.16

30.

Refer to the exhibit. Partial results of the show access-lists and show ip interface FastEthernet 0/1 commands for router Router1 are shown. There are no other ACLs in effect. Host A is unable to telnet to host B. Which action will correct the problem but still restrict other traffic between the two networks? Apply the ACL in the inbound direction. Apply the ACL on the FastEthernet 0/0 interface. Reverse the order of the TCP protocol statements in the ACL. Modify the second entry in the list to permit tcp host 172.16.10.10 any eq telnet .

31. A network administrator has changed the VLAN configurations on his network switches over the past weekend. 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.

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

32.

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. Configure RA with a clock rate command. Issue a no shutdown interface command on RB.

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. The service provider is closer to the location on the East side. More clients share a connection to the DSLAM on the West side.

34. What are two effective measures for securing routers? (Choose two.) Protect all active router interfaces by configuring them as passive interfaces.

Configure remote administration through VTY lines for Telnet access. Use quotes or phrases to create pass phrases. Disable the HTTP server service. Enable SNMP traps.

35. Which combination of Layer 2 protocol and authentication should be used to establish a link without sending 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

36. While 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 which layer of the OSI model is the problem most likely to be found? application layer network layer data link layer physical layer

37.

Refer to the exhibit. From the output of the show interfaces and pingcommands, at which layer of the OSI model is a fault indicated? application transport network data link physical

38. Which Frame Relay flow control mechanism is used to signal routers that they should reduce the flow rate of frames? DE BE CIR FECN CBIR

39. A network administrator is instructing a technician on best practices for applying ACLs. Which suggestion should the administrator provide?

Named ACLs are less efficient than numbered ACLs. Standard ACLs should be applied closest to the core layer. ACLs applied to outbound interfaces are the most efficient. Extended ACLs should be applied closest to the source that is specified by the ACL.

40. When Frame Relay encapsulation is used, what feature provides flow control and exchanges information about the status of virtual circuits? LCP LMI DLCI Inverse ARP

41.

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. Only one switch can be in server mode. S2 has a higher spanning-tree priority for VLAN 11 than S1 does.

42. 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.

43. 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.

44.

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 between headquarters and both branch offices? ATM VPN ISDN Frame Relay broadband DSL

45. Which configuration on the vty lines provides the best security measure for network administrators to remotely access the core routers at headquarters?

Answer: 3nd option

46. When would the multipoint keyword be used in Frame Relay PVCs configuration? when global DLCIs are in use when using physical interfaces when multicasts must be supported when participating routers are in the same subnet

47. Which option correctly defines the capacity through the local loop guaranteed to a customer by the service provider? BE DE CIR CBIR

48.

Refer to the exhibit. A network administrator configures a standard access control list on Router1 to prohibit traffic from the 192.168.0.0/24 network from reaching the Internet. The access control list also permits traffic from the 192.168.0.0/24 network to reach the 192.168.1.0/24 network. On which interface and in which direction should the access control list be applied? interface Fa0/0, inbound interface Fa0/0, outbound interface S0/0/0, inbound interface S0/0/0, outbound

49. Which three guidelines would help contribute to creating a strong password policy? (Choose three.) Once a good password is created, do not change it. Deliberately misspell words when creating passwords. Create passwords that are at least 8 characters in length. Use 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.

50.

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 servercommand shows "DHCPD: there is no address pool for 10.1.1.1". What is the problem? The 10.1.1.1 address is already configured on Fa0/0. The default router for the 10Network pool is incorrect. The ip helper-address must be added to Fa0/0 interface. The pool of addresses for the 10Network pool is incorrect.

51. 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.

52.

Refer to the exhibit. A network administrator is attempting to configure a Frame Relay network. The administrator enters the commands as shown in the exhibit on R2, but the Frame Relay PVCs are inactive. What is the problem? The incorrect DLCI numbers are being configured on R2. The S0/0/0 interface on R2 needs to be point-to-point. The frame-relay map commands are missing the cisco keyword at the end. A single router interface cannot connect to more than one Frame Relay peer at a time.