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NPTEL Cloud Computing Week 2 Assignment Solution
Para-virtualization is best described as:
- A) Running an unmodified guest OS on top of a hypervisor with full CPU trapping.
- B) Modifying the guest OS to use hypervisor-aware interfaces for certain privileged operations.
- C) Emulating hardware in software so guests don't need any changes.
- D) Running containers that share the host kernel.
Which statement about a community cloud is MOST accurate?
- A) Owned and operated by a single organization for its exclusive use.
- B) Shared infrastructure among several organizations with similar compliance/regulatory needs.
- C) A public cloud account with extra IAM roles.
- D) Always the most cost-effective option for small startups.
When an organization considers using an outsourced private cloud, which of the following should be explicitly considered?
- A) Only (i)
- B) (i) and (ii) only
- C) (i) and (iii) only
- D) (i), (ii), and (iii)
Which XML parser API is MOST appropriate for very large XML files in a memory-constrained environment?
- A) DOM
- B) SAX
- C) StAX
- D) All are equally suitable
A hypervisor shows 40% CPU usage while VMs report only 15%. What explains the gap?
- A) No hardware virtualization support
- B) Virtualization overhead such as context switching and I/O emulation
- C) Unmodified OS inefficiency
- D) Efficient resource overcommitment
Which statement clarifies “Hypervisor,” “Virtual Machine Monitor,” and “Cluster Manager”?
- A) All terms are synonymous
- B) Hypervisor and VMM are synonymous; Cluster Manager handles orchestration
- C) Hypervisor is Type 1 only
- D) They refer to unrelated systems
Speed and flexibility are disadvantages of para-virtualization.
- A) True
- B) False
Which mechanism was specifically designed as a registry/discovery approach for web services?
- A) SMS
- B) HTTP
- C) SMTP
- D) UDDI
Which problems are effectively addressed by traditional web services?
- A) Only (i) and (ii)
- B) (i), (ii), and (iv) are addressed; (iii) is NOT addressed
- C) Only (i)
- D) All are addressed
Service-Oriented Architecture (SOA) models relationships primarily among:
- A) Two entities only
- B) Provider and broker only
- C) Provider, requestor, and broker/registry
- D) Provider, requestor, and hypervisor
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