Q1. Beginning with the Cisco IOS Software Release 15.0, which license is a prerequisite for installing additional technology pack licenses?
Explanation: Cisco IOS Software release 15.0 incorporates four technology packs. They are IPBase, DATA, UC (unified Communications), and SEC (Security). Having the IPBase license installed is a prerequisite for installing the other technology packs.
Q2. What is the major release number in the IOS image name c1900-universalk9-mz.SPA.152-3.T.bin?
Explanation: The part of the image name 152-3 indicates that the major release is 15, the minor release is 2, and the new feature release is 3.
Q3. Question
Explanation: No answer description available for this question
Q4. What statement describes a Cisco IOS image with the “universalk9_npe” designation for Cisco ISR G2 routers?
Explanation: To support Cisco ISR G2 platforms, Cisco provides two types of universal images. The images with the “universalk9_npe” designation in the image name do not support any strong cryptography functionality such as payload cryptography to satisfy the import requirements of some countries. The “universalk9_npe” images include all other Cisco IOS software features.
Q5. Question
Explanation: No answer description available for this question
Q6. A network administrator configures a router with the command sequence:
R1(config)# boot system tftp://c1900-universalk9-mz.SPA.152-4.M3.bin R1(config)# boot system rom
What is the effect of the command sequence?
Explanation: The boot system command is a global configuration command that allows the user to specify the source for the Cisco IOS Software image to load. In this case, the router is configured to boot from the IOS image that is stored on the TFTP server and will use the ROMmon imagethat is located in the ROM if it fails to locate the TFTP server or fails to load a valid image from the TFTP server.
Q7. What is used as the default event logging destination for Cisco routers and switches?
Explanation: By default, Cisco routers and switches send event messages to the console. Various IOS versions will also send their event messages to the buffer by default. Specific commands must be implemented to allow logging to other locations.
Q8. When a customer purchases a Cisco IOS 15.0 software package, what serves as the receipt for that customer and is used to obtain the license as well?
Explanation: A customer who purchases a software package will receive a Product Activation Key (PAK) that serves as a receipt and is used to obtain the license for the software package.
Q9. Question
Explanation: No answer description available for this question
Q10. What code in the Cisco IOS 15 image filename c1900-universalk9-mz.SPA.153-3.M.bin indicates that the file is digitally signed by Cisco?
Explanation: The different parts of the Cisco IOS image file are as follows:
c1900 – Identifies the platform as a Cisco 1900 router.
universalk9 – specifies the image contains strong encryption.
mz – Indicates the file runs from RAM and is compressed.
SPA – designates that the file is digitally signed by Cisco.
152-4.M3 – specifies the filename format for the image 15.2(4)M3. This is the version of IOS, which includes the major release, minor release, maintenance release, and maintenance rebuild numbers. The M indicates this is an extended maintenance release.
bin – This extension indicates that this file is a binary executable file.
c1900 – Identifies the platform as a Cisco 1900 router.
universalk9 – specifies the image contains strong encryption.
mz – Indicates the file runs from RAM and is compressed.
SPA – designates that the file is digitally signed by Cisco.
152-4.M3 – specifies the filename format for the image 15.2(4)M3. This is the version of IOS, which includes the major release, minor release, maintenance release, and maintenance rebuild numbers. The M indicates this is an extended maintenance release.
bin – This extension indicates that this file is a binary executable file.
Q11. In addition to IPBase, what are the three technology packs that are shipped within the universal Cisco IOS Software Release 15 image? (Choose three.)
Explanation: Advanced IP Services, Advanced Enterprise Services, and SP Services are IOS release 12.4 feature sets.
Q12. Which three software packages are available for Cisco IOS Release 15.0?
Explanation: Cisco IOS Release 15.0 has four available technology software packages.
IPBase
DATA
Unified Communications
Security
IPBase
DATA
Unified Communications
Security
Q13. A network engineer is upgrading the Cisco IOS image on a 2900 series ISR. What command could the engineer use to verify the total amount of flash memory as well as how much flash memory is currently available?
Explanation: The show flash0: command displays the amount of flash available (free) and the amount of flash used. The command also displays the files stored in flash, including their size and when they were copied.
Q14. A ping fails when performed from router R1 to directly connected router R2. The network administrator then proceeds to issue the show cdp neighbors command. Why would the network administrator issue this command if the ping failed between the two routers?
Explanation: The show cdp neighbors command can be used to prove that Layer 1 and Layer 2 connectivity exists between two Cisco devices. For example, if two devices have duplicate IP addresses, a ping between the devices will fail, but the output of show cdp neighbors will be successful. The show cdp neighbors detail could be used to verify the IP address of the directly connected device in case the same IP address is assigned to the two routers.
Q15. Question
Explanation: No answer description available for this question
Q16. Which command is used to configure a one-time acceptance of the EULA for all Cisco IOS software packages and features?
Explanation: The license save command is used to back up a copy of the licenses on a device. The show license command is used to display additional information about Cisco IOS software licenses. The license boot module module-name command activates an Evaluation Right-To-Use license. To configure a one-time acceptance of the End User License Agreement (EULA) covering all Cisco IOS packages and features, use the license accept end user agreement command.
Q17. Which command would a network engineer use to find the unique device identifier of a Cisco router?
Explanation: The license install stored-location-url command is used to install a license file. The show version and show running-configuration commands display router configuration and other details, but not the UDI.
Q18. Which syslog message type is accessible only to an administrator and only via the Cisco CLI?
Explanation: Syslog messages can be sent to the logging buffer, the console line, the terminal line, or to a syslog server. However, debug-level messages are only forwarded to the internal buffer and only accessible through the Cisco CLI.
Q19. Question
Explanation: No answer description available for this question
Q20. The command ntp server 10.1.1.1 is issued on a router. What impact does this command have?
Explanation: The ntp server ip-address global configuration command configures the NTP server for IOS devices.
Q21. Which two statements are true about NTP servers in an enterprise network? (Choose two.)
Explanation: Network Time Protocol (NTP) is used to synchronize the time across all devices on the network to make sure accurate timestamping on devices for managing, securing and troubleshooting. NTP networks use a hierarchical system of time sources. Each level in this hierarchical system is called a stratum. The stratum 1 devices are directly connected to the authoritative time sources.
Q22. A network administrator has issued the logging trap 4 global configuration mode command. What is the result of this command?
Explanation: The logging trap level allows a network administrator to limit event messages that are being sent to a syslog server based on severity.
Q23. Which statement is true about CDP on a Cisco device?
Explanation: CDP is a Cisco-proprietary protocol that can be disabled globally by using the no cdp run global configuration command, or disabled on a specific interface, by using the no cdp enable interface configuration command. Because CDP operates at the data link layer, two or more Cisco network devices, such as routers can learn about each other even if Layer 3 connectivity does not exist. The show cdp neighbors detail command reveals the IP address of a neighboring device regardless of whether you can ping the neighbor.
Q24. Why would a network administrator issue the show cdp neigbors command on a router?
Explanation: The show cdp neighbors command provides information on directly connected Cisco devices including Device ID, local interface, capability, platform, and port ID of the remote device.
Q25. Which protocol or service allows network administrators to receive system messages that are provided by network devices?
Explanation: Cisco developed NetFlow for the purpose of gathering statistics on packets flowing through Cisco routers and multilayer switches. SNMP can be used to collect and store information about a device. Syslog is used to access and store system messages.
NTP is used to allow network devices to synchronize time settings.
Q26. Which two conditions should the network administrator verify before attempting to upgrade a Cisco IOS image using a TFTP server? (Choose two.)
Explanation: No answer description available for this question
Q27. Question
Explanation: No answer description available for this question
Q28. Which DHCPv4 message will a client send to accept an IPv4 address that is offered by a DHCP server?
Explanation: No answer description available for this question
Q29. What is the reason why the DHCPREQUEST message is sent as a broadcast during the DHCPv4 process?
Explanation: No answer description available for this question
Q30. Which address does a DHCPv4 server target when sending a DHCPOFFER message to a client that makes an address request?
Explanation: No answer description available for this question
Q31. As a DHCPv4 client lease is about to expire, what is the message that the client sends the DHCP server?
Explanation: No answer description available for this question
Q32. Which set of commands will configure a router as a DHCP server that will assign IPv4 addresses to the 192.168.100.0/23 LAN while reserving the first 10 and the last addresses for static assignment?
Explanation: No answer description available for this question
Q33. What is an advantage of configuring a Cisco router as a relay agent?
Explanation: No answer description available for this question
Q34. An administrator issues the commands:
Router(config)# interface g0/1 Router(config-if)# ip address dhcp
What is the administrator trying to achieve?
Explanation: No answer description available for this question
Q35. Under which two circumstances would a router usually be configured as a DHCPv4 client? (Choose two.)
Explanation: No answer description available for this question
Q36. A host on the 10.10.100.0/24 LAN is not being assigned an IPv4 address by an enterprise DHCP server with the address 10.10.200.10/24. What is the best way for the network engineer to resolve this problem?
Explanation: No answer description available for this question
Q37. A company uses the SLAAC method to configure IPv6 addresses for the employee workstations. Which address will a client use as its default gateway?
Explanation: No answer description available for this question
Q38. A network administrator configures a router to send RA messages with M flag as 0 and O flag as 1. Which statement describes the effect of this configuration when a PC tries to configure its IPv6 address?
Explanation: No answer description available for this question
Q39. A company implements the stateless DHCPv6 method for configuring IPv6 addresses on employee workstations. After a workstation receives messages from multiple DHCPv6 servers to indicate their availability for DHCPv6 service, which message does it send to a server for configuration information?
Explanation: No answer description available for this question
Q40. An administrator wants to configure hosts to automatically assign IPv6 addresses to themselves by the use of Router Advertisement messages, but also to obtain the DNS server address from a DHCPv6 server. Which address assignment method should be configured?
Explanation: No answer description available for this question
Q41. How does an IPv6 client ensure that it has a unique address after it configures its IPv6 address using the SLAAC allocation method?
Explanation: No answer description available for this question
Q42. What is used in the EUI-64 process to create an IPv6 interface ID on an IPv6 enabled interface?
Explanation: No answer description available for this question
Q43. Question
Explanation: No answer description available for this question
Q44. A network administrator is implementing DHCPv6 for the company. The administrator configures a router to send RA messages with M flag as 1 by using the interface command ipv6 nd managed-config-flag. What effect will this configuration have on the operation of the clients?
Explanation: No answer description available for this question
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Explanation: No answer description available for this question
Q46. Question
Explanation: No answer description available for this question
Q47. Fill in the blank. Do not abbreviate.
Explanation: No answer description available for this question
Q48. A company uses DHCP servers to dynamically assign IPv4 addresses to employee workstations. The address lease duration is set as 5 days. An employee returns to the office after an absence of one week. When the employee boots the workstation, it sends a message to obtain an IP address. Which Layer 2 and Layer 3 destination addresses will the message contain?
Explanation: No answer description available for this question
Q49. Which is a DHCPv4 address allocation method that assigns IPv4 addresses for a limited lease period?
Explanation: No answer description available for this question
Q50. A network engineer is troubleshooting hosts on a LAN that are not being assigned an IPv4 address from a DHCP server after a new Ethernet switch has been installed on the LAN. The configuration of the DHCP server has been confirmed as correct and the clients have network connectivity to other networks if a static IP address is configured on each one. What step should the engineer take next to solve the issue?
Explanation: No answer description available for this question
Q51. A company uses the method SLAAC to configure IPv6 addresses for the workstations of the employees. A network administrator configured the IPv6 address on the LAN interface of the router. The interface status is UP. However, the workstations on the LAN segment did not obtain the correct prefix and prefix length. What else should be configured on the router that is attached to the LAN segment for the workstations to obtain the information?
Explanation: No answer description available for this question
Q52. Which protocol supports Stateless Address Autoconfiguration (SLAAC) for dynamic assignment of IPv6 addresses to a host?
Explanation: No answer description available for this question
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Explanation: No answer description available for this question
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Explanation: No answer description available for this question
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Explanation: No answer description available for this question
