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Cisco 100-490 Exam Questions
- Topic 1: Describe hardware memory common terms and their use in Cisco routers and switches/ Describe an IPv4 and IPv6 address and subnet
- Topic 2: Perform software upgrade or downgrade using TFTP, FTP, xmodem, tftpdnld, or USB Storage/ Identify and describe commonly used components
- Topic 3: Describe the location and process to change the configuration register parameter/ Describe the function of Telnet and SSH
- Topic 4: Identify and locate the serial number of Cisco products/ Describe the function of FTP, TFTP and PING
- Topic 5: Describe the basic functionality and key differences of this hardware: LAN switch, router, and wireless access points
- Topic 6: Identify Cisco products by logo marking and model number/ Copy and paste a configuration file from/to a router or switch
- Topic 7: Perform password recovery on a Cisco device/ Describe the licensing process on different platforms
- Topic 8: Use and interpret the basic Cisco IOS Software commands/ Use the OSI and TCP/IP models and their associated protocols to explain how data flows in a network
- Topic 9: Identify and correct common network problems at Layers 1 and 2/ Identify tools for hardware installation and replacement
- Topic 10: Describe the key role of Cisco IOS, IOS-XE, IOS-XR and NX-OS software/ Navigate between different operating modes
Free Cisco 100-490 Exam Actual Questions
Note: Premium Questions for 100-490 were last updated On 11-03-2025 (see below)
Refer to the exhibit.
Which two statements about the hardware components are true? (Choose two.)
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.
Which type of Cisco console cable is used to connect a laptop to the console port on a Cisco router?
Rollover cables are specifically designed for connecting to the console ports on Cisco routers and switches. Here's why they are the right choice:
Pinout: Rollover cables have a reversed pinout compared to standard Ethernet cables. This matches the console port's wiring, allowing for configuration access.
Appearance: Rollover cables are often light blue in color to help distinguish them from standard Ethernet cables.
USB Adapter: Many modern laptops may not have a direct serial port. In this case, a rollover cable with a USB-to-serial adapter is used.
Why other options are incorrect:
Straight-through: Used for connecting unlike devices (e.g., switch to computer). They won't have the correct wiring for console connections.
Fiber: Used for high-speed, long-distance networks. Console ports use a serial-based connection, not fiber optics.
Crossover: Used to connect similar devices (e.g., switch to switch). The pinout is not the same as what a console port requires.
Which set of steps best describes how to assign a static IP address to the Ethernet port on a computer?
ESD is the sudden and momentary electric current that flows between two objects at different electrical potentials, caused by direct contact or induced by an electrostatic field. Which three tools are used to avoid ESD? (Choose three.)
Electrostatic Discharge (ESD) poses a significant risk to delicate electronic components. Here's why the correct answers are essential tools for ESD protection:
Antistatic Mat: Provides a grounded surface to work on, dissipating static buildup from your body and the components you're handling.
ESD Wrist Strap: When connected to a grounding point (often on the antistatic mat), this strap creates an electrical path to safely discharge static electricity from your body.
Antistatic Bag: These special bags are designed to shield sensitive components from static charge, crucial for storing and transporting electronic parts.
Why other options are incorrect:
Negative static bag, negative static mat: These terms don't exist in standard ESD protection practices. The focus is on creating a grounded environment to neutralize static charges.
Latex gloves: While they offer insulation, they can actually generate static electricity, increasing the risk of ESD damage.
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