Practice Test Geeks(CTE) Certified Telecommunications Executive Practice Test
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Cloud Infrastructure 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 Cloud Infrastructure flashcards as text

  1. In multi-cloud telecom strategies, what is the main risk that operators must mitigate?

    Answer: Vendor lock-in and interoperability challenges between cloud platforms

    Multi-cloud introduces integration complexity and potential vendor-specific dependencies that can limit portability and increase operational overhead.

  2. Which cloud networking concept allows telecom operators to extend their on-premises MPLS network into a cloud provider's infrastructure?

    Answer: Direct Connect / ExpressRoute (dedicated private connectivity)

    Dedicated private connectivity services (AWS Direct Connect, Azure ExpressRoute) bypass the public internet for reliable, low-latency MPLS-to-cloud extension.

  3. What is 'Chaos Engineering' and why is it relevant to telecom cloud infrastructure?

    Answer: Deliberately injecting failures to test system resilience and identify weaknesses

    Chaos Engineering proactively tests system resilience by intentionally introducing failures, ensuring telecom services can withstand real-world disruptions.

  4. In a cloud-native 5G core, which component is responsible for selecting the appropriate Network Function instance to handle a subscriber session?

    Answer: Network Repository Function (NRF)

    The NRF maintains a registry of available NF instances and their profiles, enabling service discovery and NF selection in the 5G core.

  5. What is the key difference between 'horizontal scaling' and 'vertical scaling' in telecom cloud infrastructure?

    Answer: Horizontal scaling adds more instances; vertical scaling increases resources on existing instances

    Horizontal scaling (scale out) adds more instances of the same size, while vertical scaling (scale up) increases CPU/RAM on existing instances.

  6. A telecom operator's cloud SLA guarantees 99.99% uptime. Approximately how many minutes of downtime per year does this allow?

    Answer: 52.6 minutes

    99.99% uptime (four nines) permits approximately 52.6 minutes of downtime per year, calculated as 0.01% × 525,600 minutes.

  7. Which cloud cost optimization strategy involves committing to a specific usage level in exchange for significant discounts compared to on-demand pricing?

    Answer: Reserved instances / committed use discounts

    Reserved instances or committed use discounts offer 30-70% savings over on-demand pricing in exchange for a 1-3 year commitment.