Practice Test Geeks(CTE) Certified Telecommunications Executive Practice Test
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Telecommunications Infrastructure & Network Management Flashcards

7 cards from real CTE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Telecommunications Infrastructure & Network Management flashcards as text

  1. A network executive is reviewing the SLA for a leased transport circuit. The SLA specifies 99.999% availability. Approximately how many minutes of downtime per year does this allow?

    Answer: 5.26 minutes

    Five nines (99.999%) availability translates to approximately 5.26 minutes of allowable downtime per year.

  2. When deploying a new IP/MPLS backbone, which IGP is preferred by most large carriers due to its scalability and fast convergence?

    Answer: IS-IS

    IS-IS is widely preferred by large carriers for IP/MPLS backbones because of its scalability, flexibility, and fast convergence characteristics.

  3. What does MTTR measure in the context of network infrastructure management?

    Answer: Mean Time To Repair — average time to restore a failed component

    MTTR (Mean Time To Repair) measures the average time required to restore a failed network component or service to normal operation.

  4. A telecommunications executive is designing network capacity for a region experiencing 40% annual traffic growth. Which planning approach best addresses this?

    Answer: Proactive capacity planning with 18–24 month demand forecasts

    Proactive capacity planning with 18–24 month forecasts ensures infrastructure keeps pace with demand, avoiding costly emergency upgrades.

  5. In telecommunications, what is the purpose of a Digital Cross-Connect System (DCS)?

    Answer: Grooming and routing digital signals between transmission facilities

    A DCS grooms, multiplexes, and routes digital signals (DS0–DS3/OC-n) between transmission facilities without converting to analog.

  6. Which technology enables multiple virtual private networks to share a common MPLS backbone while maintaining traffic isolation?

    Answer: L3VPN using BGP/MPLS

    BGP/MPLS Layer 3 VPNs (RFC 4364) allow multiple customer VPNs to share MPLS infrastructure with full routing and traffic isolation.

  7. A CTE is evaluating whether to deploy SDH or PDH for a new regional transport network. What is the key advantage of SDH over PDH?

    Answer: SDH provides standardized overhead for network management and built-in protection switching

    SDH provides standardized section, line, and path overhead enabling sophisticated network management, performance monitoring, and automatic protection switching.