100-490 Exam Dumps - Cisco CCT Routing and Switching Questions and Answers

Cisco routers can be readily configured to act as TFTP servers, allowing them to provide Cisco IOS images or configuration files to other devices. Here's why this is the correct answer:

Software Support: Cisco IOS includes built-in support for the TFTP protocol, making it easy to set up a TFTP server on a router.

Storage Capacity: Routers typically have flash memory where IOS images and other files can be stored, making them suitable repositories for TFTP transfers.

Network Accessibility: Routers play a central role in networks, making them an accessible location for TFTP file transfers.

Why other options are incorrect:

Cisco Content Engine: Content Engines are specialized network appliances designed for caching and accelerating web content delivery. They typically don't have functionality for acting as generic TFTP servers.

Modem: Modems primarily modulate/demodulate signals to facilitate communication over traditional telephone lines. They lack the software capabilities to run a TFTP server.

CSU/DSU: Channel Service Unit/Data Service Units are devices used to interface with digital leased lines. They don't possess the necessary software to run a TFTP server.

When deploying Cisco Catalyst 3850 Series switches, there are two modes of operation to choose from: Install mode and Bundle mode. Install mode is the default mode for the switch and uses a package-provisioning file named packages.conf to boot the switch. It allows for a more complete set of features and requires fewer resources upon boot1. Bundle mode, on the other hand, is similar to using traditional monolithic Cisco IOS images to boot the switch. It consumes more memory than Install mode because the packages are extracted from the bundle and copied to the RAM2. Cisco recommends using Install mode for operation due to its efficiency and feature set2.

The type of memory used to store Cisco IOS Software permanently is flash memory. Flash memory is non-volatile, meaning it retains its content even after the device is powered down or restarted. It is commonly used in Cisco devices to store one or more Cisco IOS software images, as well as other files such as backup configuration files. This allows the device to reload the operating system after a reboot without the need to retransfer the IOS image

Cisco NX-OS has added support for Python scripting to help manage user networks. Python is a powerful and versatile scripting language that is widely used for automation tasks, including network management. Cisco NX-OS leverages Python to enable network administrators to write custom scripts and programs that can interact with the network operating system, automate repetitive tasks, and integrate with other systems and APIs. This support for Python scripting is part of Cisco’s commitment to network programmability and automation, allowing for more efficient and flexible network operations12.

The show cellular unit network command in Cisco IOS is used to view detailed information about the cellular modem and the network it's connected to. Here's the type of information this command usually displays:

Network Status: Whether the device is registered on the cellular network.

Carrier Information: The name of the cellular network provider.

Technology: The cellular technology in use (e.g., 3G, 4G/LTE).

Signal Strength: Signal strength indicators like RSSI and RSCP.

Cell Site Information: Data about the cell tower or base station the device is connected to.

IP Address: The IP address assigned to the cellular interface.

Why other options are less likely:

show cellular unit radio: Provides information about the radio module itself, such as its state and power levels.

show cellular unit hardware: Focuses on hardware-level information of the cellular unit.

show cellular unit profile: Displays configuration details of the cellular profile used to connect to the network.

References:

Cisco command documentation for different show cellular options: https://www.cisco.com/c/en/us/td/docs/routers/wireless-wan/Cisco-Catalyst-Cellular-Gateways/cisco-cellular-gateways-command-reference-guide/m-show_commands.pdf

The show environment command in Cisco devices is used to display the status of the system’s environment, including power supplies and sensor temperatures. This command provides a comprehensive overview of the environmental conditions affecting the device, such as temperature readings and power supply status.

Option A, show hardware, is not specific to power supplies and sensor temperatures. Option B, show module, displays information about the network modules installed in the device but not the environmental conditions. Option D, show diag, is used for diagnostic purposes and does not specifically provide the status of power supplies and sensor temperatures.

Therefore, the correct answer is C, show environment, which is the command that specifically shows the status of power supplies and sensor temperatures in Cisco devices12.

References :=

Cisco Community discussions on power supply details1.

Cisco documentation on Environmental Monitoring and Power Management2.

The image provided shows a networking device connected to a laptop via a console cable. Based on the visual indicators and standard port designs:

C. 3 is a USB 5-pin mini USB Type B port: The port labeled “3” on the laptop is smaller than a standard USB Type A port, which suggests it is a mini USB Type B port, commonly used for connecting to networking devices for console access.

E. 2 is a USB 5-pin mini USB Type B to USB Type A console cable: The cable labeled “2” has one end that fits into the mini USB Type B port on the laptop (as identified in point 1), and the other end, which is not clearly visible in the image, is inferred to be a USB Type A connector that would typically connect to a computer’s USB port.

The show version command on Cisco devices provides a variety of system information, including:

Cisco IOS version: The version of the Cisco IOS software running on the device.

Boot image: The location of the IOS image used during startup.

Hardware information: Model, processor type, memory details.

Interfaces: A list of the device's interfaces.

Configuration register: The current value of the configuration register, typically displayed near the end of the output.

Why other options are incorrect:

show flash: Displays the contents of flash memory, but not the configuration register.

show running-config: Displays the currently active configuration, but the configuration register setting is not directly part of the running configuration.

show config-register: This is not a standard Cisco IOS command.

The Cisco CPAK-100G-SR4 module is designed to support Multimode Fiber (MMF) cable. It is specifically engineered for high-bandwidth 100G optical links and supports link lengths of up to 70 meters over OM3 and 100 meters over OM4 Multimode Fiber with MPO connectors. This module is well-suited for short-range, high-speed data communications and data center applications where Multimode Fiber is typically used due to its ability to handle the large amount of data traffic over relatively short distances. References := Cisco CPAK 100GBASE Modules Data Sheet

This configuration describes a crossover cable. A crossover cable is used to connect two similar devices directly, such as two computers or two switches, without the need for an intermediate device like a router. The wires at one end of a crossover cable are in reverse sequence to the wires at the other end, which allows the transmit and receive signals to be properly aligned between the two devices. This is different from a straight-through cable, where the wire sequence is the same at both ends1.