Cisco CCT Troubleshooting Questions

Correct Answer: To provide temporary power to equipment during outages and protect against power fluctuations Explanation: A UPS provides battery backup power to connected equipment when the main power source fails, and often includes surge protection and voltage regulation to protect against power quality issues.

Correct Answer: The management IP address or VLAN configuration was changed incorrectly Explanation: If remote (in-band) connectivity is lost but console access remains, it strongly suggests an issue with the IP address, subnet mask, default gateway, or VLAN assignment configured on the switch's management interface.

Correct Answer: To filter network traffic based on criteria like IP addresses and port numbers Explanation: ACLs are configured lists of rules used by routers and switches to control network traffic by permitting or denying packets based on criteria such as source/destination IP addresses, port numbers, and protocols.

Correct Answer: Identify the faulty drive via indicator LEDs and software status (e.g., RAID controller utility) Explanation: Before physical removal, it's vital to correctly identify the failed drive using its fault LED indicator and by confirming its status within the server's RAID controller utility or management interface (e.g., Cisco IMC).

Correct Answer: To access local phone settings, network configuration, and status information Explanation: The "Settings" or similar menu on a Cisco IP Phone provides access to various local configurations (ringtone, display), network parameters (IP address, gateway), and status information (registration status, network statistics).

Correct Answer: show processes cpu Explanation: The show processes cpu command displays the CPU utilization of the Cisco device, showing both overall usage and usage per process, which is critical for performance troubleshooting.

Correct Answer: It uses multiple paths for light, suitable for shorter distances and lower bandwidths compared to single-mode Explanation: Multi-mode fiber has a larger core than single-mode, allowing light to travel along multiple paths. This leads to signal dispersion over distance, limiting its use to shorter runs (hundreds of meters) and generally lower bandwidths than single-mode.

Correct Answer: VPN Concentrator (or VPN-capable router/firewall) Explanation: VPN (Virtual Private Network) concentrators, or devices with VPN capabilities (like many Cisco routers and firewalls), establish secure, encrypted tunnels over public networks, allowing remote access.

Correct Answer: banner login [text] Explanation: The banner login command, followed by a delimited text message, configures the message that users will see just before the login prompt on a Cisco device.

Correct Answer: Platform and IOS version of the neighbor Explanation: The show cdp neighbors detail command provides more in-depth information about directly connected Cisco devices, including their IP addresses, platform type, and IOS software version, which is not shown in the brief output.