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NPTEL Cloud Computing Assignment 7 Answers (Week 7)
Q1. Fill in the blanks in the light of User Mobility:
The lack of effective handoff mechanisms in WiFi networks as users move rapidly causes an _____ in the number of packets _____.
a. decrease, losses
b. increase, losses
c. increase, gains
d. no variation, gains
Answer: b. increase, losses
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Q2. Choose the correct option.
How to evaluate Mobile Cloud Computing performance?
- Energy Consumption
- Security
- Time to Completion
- Monetary Cost
a. only 1 and 2
b. only 2 and 4
c. only 1, 2 and 4
d. 1, 2, 3, 4
Answer: d. 1, 2, 3, 4
Q3. What is/are the key component(s) of Mobile Cloud Computing?
a. Profiler
b. Solver
c. Synchronizer
d. All of the above
Answer: d. All of the above
Q4. Which of the following is/are advantage(s) of Mobile Cloud Computing?
a. Extending battery lifetime
b. Improving security
c. Improving Reliability and Availability
d. None of the above
Answer: a. Extending battery lifetime
c. Improving Reliability and Availability
Q5. Offloading is beneficial when ________ amounts of computation are needed with relatively_________ amounts of communication.
a. Large, small
b. Small, large
c. Small, does not depend
d. Does not depends, small
Answer: a. Large, small
Q6. Which of the following is/are true?
a. In cloud computing, the distance between the client and server is over multiple hops.
b. In fog computing, the distance between the client and server is over multiple hops.
c. In cloud computing, the distance between the client and server is over a single hop.
d. In fog computing, the distance between the client and server is over a single hop.
Answer: a. In cloud computing, the distance between the client and server is over multiple hops.
d. In fog computing, the distance between the client and server is over a single hop.
Q7. Which of the following is/are fog devices?
a. Cellular base stations
b. Network routers
c. WiFi Gateways
d. None of these
Answer: b. Network routers
Q8. What is/are true about cloudlets?
a. Increases the latency in reaching the cloud servers
b. Reduces the latency in reaching the cloud servers
c. Resides far from the mobile devices
d. Resides near to the mobile devices
Answer: b. Reduces the latency in reaching the cloud servers
d. Resides near to the mobile devices
Q9. Match the following:
| List-I | List-II |
| 1. Data Level Interoperability | i. Ability to exchange/obtain the information to be consumed |
| 2. Service Level Interoperability | ii. Ability to exchange information in a reliable and trustworthy fashion |
| 3. Security Level Interoperability | iii. Ability to “consume” the information |
a. 1. (ii), 2. (iii), 3. (i)
b. 1. (iii). 2. (i), 3. (ii)
c. 1. (i). 2. (i), 3. (iii)
d. 1. (iii), 2. (ii), 3. (i)
Answer: b. 1. (iii). 2. (i), 3. (ii)
Q10. Which of the following aspect(s) is/are present in context-aware dynamic parking service case study?
a. Decision making of traffic authorities
b. Reservation service process
c. Context-aware optimization
d. None of the above
Answer: a. Decision making of traffic authorities
b. Reservation service process
c. Context-aware optimization
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