Most Recent Cisco 100-490 Exam Dumps

A Cisco router can be configured to act as a TFTP (Trivial File Transfer Protocol) server. TFTP is a simple protocol used to transfer files without the need for authentication. On a Cisco router, the tftp-server command is used to designate the router as a TFTP server, allowing it to manage file transfers to and from connected devices. This is particularly useful for tasks such as updating the router's firmware or backing up configuration files. Neither CSU/DSU, modem, nor Cisco Content Engine are typically used as TFTP servers. Reference := The ability to configure a Cisco router as a TFTP server is documented in Cisco's support forums and knowledge base articles

* The label '1' points to a rectangular port on the laptop. This is consistent with the shape of a USB Type A port.

* The cable labeled '2' has an RJ-45 connector on one end and a USB Type A connector on the other end.

Incorrect Answers:

* C. 2 is a USB 5-pin mini USB Type B to USB Type A console cable: The connector on the cable labeled '2' is not a mini USB Type B connector. It is a standard RJ-45 connector.

* D. 3 is a USB Type A port: The label '3' points to a port on the server that is not visible in the image. Therefore, we cannot identify the type of port it is.

* E. 3 is a USB 5-pin mini USB Type B port: Same as D, we cannot identify the type of port labeled '3' due to lack of visibility in the image.

SmartJacks are specialized devices used in telecommunications, particularly for T1/E1 lines. Here's why the correct answers make sense:

Signal Conversion: SmartJacks can convert between different signaling types (e.g., AMI to B8ZS). This is necessary because different telecommunication lines may use varying signaling standards.exclamation

Signal Regeneration: As signals travel over long distances, they can weaken and degrade.expand_more SmartJacks help regenerate the signal, ensuring that it maintains its strength and integrity throughout the transmission.expand_more

Why other options are incorrect:

Concentration point: SmartJacks are not primarily used as concentration points for dial-in/out connections.exclamation This function is typically handled by modems or other specialized devices.exclamation

Layer 2 operation: SmartJacks primarily operate at Layer 1 (Physical Layer) of the OSI model, focusing on the physical transmission of signals.

Channel Testing: While some SmartJacks may offer some basic channel testing capabilities, their primary functions are signal conversion and regeneration.

SmartJack (Wikipedia): https://en.wikipedia.org/wiki/Smartjack

The copy startup-config running-config command is used during the password recovery process on a Cisco router to load the saved configuration into the device's active running configuration. Here's why this is the correct choice:

Password Recovery Context: Password recovery often involves booting into ROMmon mode and changing the configuration register to bypass the normal boot process. This leaves the device with a blank running configuration.

Restoring Configuration: The copy startup-config running-config command copies the stored configuration (startup-config) from NVRAM into the running-config, which is used by the router for its operations.

Why other options are incorrect:

load_helper: While the load_helper command sometimes appears in password recovery procedures, it's typically used for older models and may not be necessary for all Cisco routers.

configure terminal: This command simply enters global configuration mode. It doesn't directly load a configuration.

copy running-config startup-config: This command saves the active running configuration into NVRAM as the startup-config. It's the reverse of what you need for password recovery.

Theshow cdp neighborcommand on Cisco devices displays various pieces of information about directly connected neighboring devices that support Cisco Discovery Protocol (CDP).Two key pieces of information displayed by this command are theplatformof the neighboring device, which indicates the hardware type, and thedevice ID, which is typically the hostname of the device1. The command does not display the uptime or the Cisco IOS Software version; these details can be seen with theshow cdp neighbor detailcommand.The IP address is also part of the detailed information and not displayed in the standardshow cdp neighboroutput1.