CCNA 2 - Chapitre 10

La commande "ntp server 10.1.1.1" synchronise l'horloge du système avec la source d'heure ayant l'adresse IP 10.1.1.1.

The correct answer is "Les horodatages du service Syslog" because this technology improves real-time debugging by displaying the date and time associated with each monitored event. By including timestamps, it becomes easier to track and analyze events in the syslog, allowing for more efficient debugging and troubleshooting processes.

The configuration command "logging trap 5" sets the logging level to 5, which means that only messages with a severity level equal to or lower than 5 will appear on the syslog server. Therefore, the conclusion that can be drawn from this configuration is that the only messages that will appear on the syslog server are those with a severity level equal to or lower than 5.

The correct answer states that the CDP protocol can be disabled globally or on a specific interface. This means that the CDP protocol can be turned off either for the entire device or for a particular interface. This flexibility allows network administrators to control the usage of CDP based on their specific requirements and security policies.

The blank should be completed with the number 514. The question is asking for the port number that the Syslog protocol uses to send event notification messages to event message collectors on IP networks. The correct answer is 514.

The given correct answer is "A l'heure à laquelle le message Syslog a été émis." This means that the value 17:46:26.143 corresponds to the time at which the Syslog message was emitted.

Syslog is a protocol or service that allows network admins to receive system messages provided by network devices. It is a standard for message logging and allows devices to send event notifications to a centralized server. This enables administrators to monitor and analyze network activity, troubleshoot issues, and ensure the smooth functioning of the network. SNMP (Simple Network Management Protocol) is used for network management and monitoring, Netflow is a network protocol used for traffic analysis, and NTP (Network Time Protocol) is used for time synchronization.

This statement describes a characteristic of a Syslog server, which is the ability to perform detailed searches in the data.

The correct answer is 0x2102. This is the default factory setting for the configuration register on Cisco routers. The configuration register is a 16-bit value that determines how the router boots up and how it processes the configuration file. The value 0x2102 tells the router to load the IOS image from flash memory and to load the startup configuration file from NVRAM.

The correct answer is "Cle d'activation de produit" because when a customer purchases a Cisco IOS 15.0 software, the product activation key serves as a receipt for the customer and also allows them to obtain the license.

Les journaux d'événements sur les routeurs et commutateurs Cisco sont généralement envoyés vers la ligne de console par défaut. La ligne de console permet la connexion directe à l'appareil via un câble de console, ce qui facilite la surveillance et le dépannage en affichant les messages d'événements en temps réel. Cela permet aux administrateurs réseau de voir les informations importantes et de prendre des mesures appropriées en cas de problèmes ou d'incidents.

The code "SPA" in the filename "c1900-universalk9-mz.SPA.153-3.M.bin" indicates the digital signature Cisco of the file.

The correct answer is "debogage". Syslog messages of type "debogage" are only accessible to the admin and can only be accessed via a Cisco command-line interface. This type of message is used for debugging purposes, providing detailed information about the system's operation and any potential issues.

The given image name "IOS c1900-universalk9-mz-SPA.152-3.T.bin" contains a version number "152-3". In this version number, the major version is "152". Therefore, the correct answer is 15.

The correct answer is "Les niveaux de gravité Syslog" (Syslog severity levels). Syslog is a standard protocol used for sending log messages within a network. Syslog severity levels are used to classify the importance or severity of an event or message. These levels range from emergency (most severe) to debug (least severe). By filtering messages based on their severity levels, Syslog allows for different devices to receive and handle events according to their importance.

The correct answers are that NTP servers of stratum 1 are connected directly to an authoritative time source and that NTP servers provide precise timestamping of logging and debugging information. This means that NTP servers at stratum 1 have a direct connection to a highly accurate time source, ensuring accurate time synchronization within the network. Additionally, NTP servers play a crucial role in maintaining accurate timestamps for logging and debugging purposes, ensuring that events are accurately recorded and analyzed.

The correct answer is "show flash0:". This command is used to display the total amount of Flash memory on the Cisco ISR 2900 router, as well as the amount of available Flash memory. By using this command, the technician can verify the memory capacity and determine how much space is currently being used and how much is still available for storing the IOS image or other files.

The partial result of the "show ntp associations detail" command indicates that the router R1 is configured as the NTP master and R2 is configured as the NTP client. Additionally, the command shows that the IP address of R1 is 192.168.1.2. Therefore, the information that can be inferred from the partial result is that R1 is the master of R2 and R2 is the client, and the IP address of R1 is 192.168.1.2.

UDI stands for Unique Device Identifier. In this context, the UDI is a combination of the product ID, serial number, and hardware version. This unique identifier is required to obtain a license for the DATA technology pack for IOS 15.0 on a Cisco 1900 router.

The administrator wants to verify the Layer 2 connectivity between the routers. By executing the "show cdp neighbors" command, the administrator can check the Cisco Discovery Protocol (CDP) neighbors of the routers. CDP is a Layer 2 protocol that allows network devices to discover and learn about each other. By examining the CDP neighbors, the administrator can determine if the routers are directly connected and if the Layer 2 connectivity is functioning properly. This information can help troubleshoot the failed ping request between the routers.

The correct answer is "uck9." The "uck9" pack technologique Cisco IOS 15 is necessary for implementing voice over IP.

The correct answer states that the administrator does not need to do anything because Cisco routers by default send log messages to the console for all severity levels. This means that the administrator does not need to execute any additional commands or install any Syslog server to view the log messages.

The correct answer is "This message indicates that the service timestamps have been configured" and "This message is a level 5 notification". The first conclusion is based on the statement "Ce message indique que les horodatages du service ont été configurés" which translates to "This message indicates that the service timestamps have been configured". The second conclusion is based on the statement "Ce message est une notification de niveau 5" which translates to "This message is a level 5 notification".

The correct answer is "Le routeur est connecté à un périphérique de strate 2" because the illustration shows that the router is connected to a device labeled "Stratum 2". This indicates that the router is receiving time synchronization information from a device at stratum 2 in the NTP hierarchy. Additionally, "L'adresse IP de la source d'heure du routeur est 192.168.1.1" is also correct because the illustration shows that the router's IP address for its time source is indeed 192.168.1.1.

La commande "show cdp neighbors detail" permet de collecter l'adresse IP du voisin, tandis que la commande "show cdp neighbors" ne fournit pas cette information.

The evaluation license for Cisco IOS 15.0 software packages is valid for a duration of 60 days.

The sequence of commands configures the router to load the IOS image from the TFTP server. If the loading of the image fails, the router will then load the IOS image from the ROM.

Since version 15.0 of Cisco IOS software, the prerequisite license for installing technology package licenses is IPBase.

Les messages Syslog ont été extraits de la mémoire RAM du routeur.

After purchasing, installing, and activating a license key on a Cisco 2911 ISR G2 integrated services router, the next step in the installation process is to restart the router.

The command "logging trap 4" in global configuration mode sets the logging level to 4, which means that the client syslog will send all event messages with a severity level of 4 or lower to the syslog server. This means that any event message with a severity level of 4 or higher will be sent to the syslog server, including messages with a severity level of 4. Therefore, the correct answer is "Le client Syslog enverra au serveur Syslog tout message d'événement de gravité 4 ou inférieure."

A network technician would use the "show license udi" command to find the unique device identifier of a Cisco router. This command displays the license Universal Device Identifier (UDI) information, which includes the unique identifier of the device. This information is useful for managing and troubleshooting the router, as it helps in identifying the specific device among others in the network.

The command "license accept end user agreement" allows the configuration of a single acceptance of the end user license agreement (EULA) for all Cisco IOS packages and features.

The packs technologiques fournis avec l'image universelle du logiciel Cisco IOS version 15 are Security, Unified Communications, and Data. These packs provide advanced security features, unified communications capabilities, and data services.

An admin réseau would execute the command "show cdp neighbors" on a router to display the device ID and other information about directly connected Cisco devices.

This answer explains that the image Cisco IOS with the designation for Cisco ISR G2 routers is a version of the IOS that allows for the removal of strong cryptography functionalities upon request from certain countries.

The correct answer is Communications unifiees, Securite, DONNEES. These are three software options available for the version 15.0 of Cisco IOS.

The correct answer suggests that the network admin should verify two conditions before attempting to upgrade a Cisco IOS software image using a TFTP server. Firstly, they should check if there is sufficient Flash memory available for the new IOS image by using the "show flash" command. This is important because if there is not enough memory, the upgrade process may fail. Secondly, they should verify the connectivity between the router and the TFTP server by using the "ping" command. This is crucial to ensure that the router can communicate with the server and retrieve the image successfully.

The correct answer is "Router(config)# no cdp run" and "Router(config-if)# cdp enable". The first step is to disable CDP globally on the router using the "no cdp run" command. This ensures that CDP is not running on any interface. The second step is to enable CDP on the specific interface using the "cdp enable" command in interface configuration mode. This allows the interface to send and receive CDP information.