🔍 Basic Troubleshooting - CCT Practice Questions

Study basic network troubleshooting: using show commands, ping, traceroute, interface status, log analysis, and Cisco TAC processes.

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1Exam Domains

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CCT Troubleshooting Question Bank (3 Questions)

Browse all 3 practice questions covering Basic Troubleshooting for the CCT certification exam. Each question includes the full answer and a detailed explanation to help you understand the concepts.

  1. Question 1Service-Related Knowledge

    What do 'show interfaces' status values 'up/up' and 'up/down' indicate?

    Aup/up means the interface is disabled
    Bup/up = Layer 1 and Layer 2 are working; up/down = Layer 1 is up but Layer 2 protocol (e.g., encapsulation, keepalives) has failed
    Cup/down means the cable is disconnected
    DBoth indicate normal operation
    Show Answer & Explanation
    Correct Answer: B
    Explanation:

    Line status/Protocol status: up/up = fully operational (L1+L2). up/down = physical link is active but L2 protocol failed (encapsulation mismatch, keepalive failure, clocking issue). down/down = physical issue (no cable, no signal). admin down = shutdown.

  2. Question 2Service-Related Knowledge

    What is the purpose of the 'show tech-support' command in troubleshooting?

    AEnable remote TAC access
    BCollect comprehensive diagnostic output for TAC analysis
    CRun automated repair procedures
    DConnect to Cisco cloud diagnostics
    Show Answer & Explanation
    Correct Answer: B
    Explanation:

    'show tech-support' collects extensive diagnostic information including show version, running-config, interfaces, processes, and more into a single output commonly requested by TAC engineers.

  3. Question 3Service-Related Knowledge

    What is the recommended first troubleshooting step when a Cisco switch port is showing 'err-disabled' status?

    AReplace the cable
    BShut/no shut the interface
    CIdentify the cause using 'show errdisable recovery'
    DReload the switch
    Show Answer & Explanation
    Correct Answer: C
    Explanation:

    First identify why the port was err-disabled using 'show errdisable recovery' or 'show interface status err-disabled'. Common causes include BPDU guard, port security, or link-flap. Fix the root cause before re-enabling.

Key Troubleshooting Concepts for CCT

troubleshootshowpingtracerouteinterface statuslogtacdebug

CCT Troubleshooting Exam Tips

Basic Troubleshooting questions in CCT are typically scenario-based. Focus on service-level decision making aligned to official exam objectives. Priority concepts: troubleshoot, show, ping, traceroute, interface status, log.

What CCT Expects

  • Anchor your answer in select the most practical, secure, and scalable answer for the stated scenario.
  • Troubleshooting scenarios for CCT are frequently mapped to Domain 3 (35%), so read the objective carefully before picking controls or architecture.
  • Expect multi-service scenarios where Troubleshooting interacts with IAM, networking, storage, or observability patterns rather than appearing as an isolated service question.
  • When two options are both technically valid, prefer the choice that best aligns with the exam's operational scope (Entry) and managed-service best practices.

High-Value Troubleshooting Concepts

  • Know the core Troubleshooting building blocks cold: troubleshoot, show, ping, traceroute.
  • Review the edge-case features and limits for interface status, log; these details are commonly used to differentiate answer choices.
  • Practice service-integration reasoning: how Troubleshooting pairs with Hardware, IOS Basics in real deployment patterns.
  • For CCT, explain why the chosen Troubleshooting design meets reliability, security, and cost expectations better than the alternatives.

Common CCT Traps

  • Watch for answers that partially solve the requirement but miss operational constraints.
  • Questions in Troubleshooting often include distractors that look correct for Troubleshooting but violate least-privilege, durability, or availability requirements.
  • Avoid picking options purely by feature name; validate data path, failure handling, and governance impact before answering.
  • If the prompt hints at automation or repeatability, eliminate manual-only operational answers first.

Fast Review Checklist

  • Can you compare at least two Troubleshooting implementation paths and justify which one best fits the scenario?
  • Can you map the chosen answer back to Troubleshooting (35%) outcomes for CCT?
  • Can you explain security and access boundaries for Troubleshooting without relying on default-open assumptions?
  • Can you describe how Troubleshooting integrates with Hardware and IOS Basics during failure, scaling, and monitoring events?

Exam Domains Covering Troubleshooting

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