2026 Actual Cisco 100-490 Dumps, Updated Exam Questions for Guaranteed Pass

100-490 free sample questions and answers

Cisco 100-490 practice quiz with correct answers for search indexing.

1. Question 1

   Which type of memory is used to store Cisco IOS Software permanently?

   ANVRAM
   

   Bflash
   

   CSRAM
   

   DDRAM
   

   Correct answer: B

   The type of memory used to store Cisco IOS Software permanently isflash 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

   
   

2. Question 2

   What are two standard fiber-optic connectors? (Choose two.)

   ALucent
   

   Brollover
   

   Csubscriber
   

   Dmultidimension
   

   Ecrossover
   

   Correct answer: A, C

   Two standard fiber-optic connectors are Lucent Connectors (LC) and Subscriber Connectors (SC). The Lucent Connector, commonly referred to as LC, was developed by Lucent Technologies and is characterized by its small form factor with a 1.25mm ferrule. It is widely used in high-density applications due to its compact size and square shape1. The Subscriber Connector, or SC, is known for its push-pull latching mechanism and uses a 2.5mm ferrule. It is a square-shaped, duplex connector that has been a dominant fiber optic connector for decades due to its performance and reliability12.

   
   

3. Question 3

   Which two pieces of information about a neighboring device are displayed when you the CLI command show cdp neighbor? (Choose two.)

   Aplatform
   

   Buptime
   

   Cdevice ID
   

   DCisco IOS Software version
   

   EIP address
   

   Correct answer: A, C

   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.

   
   

4. Question 4

   Refer to the exhibit. What are two identifications for the hardware components? (Choose two.)

   

   A1 is a USB Type A port.
   

   B2 is an RJ-45 to USB Type A console cable.
   

   C2 is a USB 5-pin mini USB Type B to USB Type A console cable.
   

   D3 is a USB Type A port.
   

   E3 is a USB 5-pin mini USB Type B port.
   

   Correct answer: A, B

   * 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.

   
   

5. Question 5

   TFTP is a simple protocol for transferring files, such as a Cisco IOS or configuration file, from one device to another. Which device can be configured as a TFTP server?

   ACisco Content Engine
   

   Bmodem
   

   CCisco router
   

   DCSU/DSU
   

   Correct answer: C

   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.