This set of MCQ(multiple choice questions) focuses on the Cloud Computing NPTEL 2023 Week 0 Assignment Solutions.
Cloud computing is a scalable services consumption and delivery platform that provides on-demand computing service for shared pool of resources, namely servers, storage, networking, software, database, applications etc., over the Internet. It is a model for enabling ubiquitous, on-demand access to a shared pool of configurable computing resources, which can be rapidly provisioned and released with minimal management effort. This course will introduce various aspects of cloud computing, including fundamentals, management issues, security challenges and future research trends.
Course layout
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Week 0: Assignment answers
Week 1:Â Introduction to Cloud Computing
Week 2: Cloud Computing Architecture
Week 3: Service Management in Cloud Computing
Week 4: Data Management in Cloud Computing
Week 5:Â Resource Management in Cloud
Week 6: Cloud Security
Week 7:Â Open Source and Commercial Clouds, Cloud Simulator
Week 8:Â Research trend in Cloud Computing, Fog Computing
Week 9:Â VM Resource Allocation, Management and Monitoring
Week 10:Â Cloud-Fog-Edge enabled Analytics
Week 11: Serverless Computing and FaaS Model
Week 12: Case Studies and Recent Advancements
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Cloud Computing NPTEL 2023 Week 0 Assignment Solutions
Q1. Which of the following ports is a registered port in network paradigm?
a) 20
b) 1020
c) 36255
d) 58628
Answer: c) 36255
Q2. Which devices uses a logical addressing system?
a) Hub
b) Router
c) Bridge
d) Switch
Answer: b) Router
Q3. Which of the following is FALSE?
a) Kernel level threads cannot share the code segment.
b) User level threads are not scheduled by the kernel.
c) Context switching between user level threads is faster than context switching between kernel level threads.
d) When a user level thread is blocked, all other threads of its process are blocked.
Answer: a)
Q4. In classful addressing, the IP address 192.2.255.255 belongs to which class?
a) Class A
b) Class B
c) Class C
d) Class D
Answer: c) Class C
Q5. Consider a system with 2 level caches. The access times of Level 1 cache, Level 2 cache, and main memory are 2 ns, 25 ns, and 200 ns, respectively. The hit rates of Level 1 cache, Level 2 cache and main memory are 0.6, 0.8 and 1, respectively. What is the average access time of the system, ignoring the search time within the cache?
a) 20.5 ns
b) 25.2 ns
c) 24 ns
d) 22.5 ns
Answer: b) 25.2 ns
Q6. Increasing the RAM of a computer typically improves performance because:
a) Larger RAMs are faster
b) Fewer page faults occur
c) Fewer segmentation faults occur
d) Virtual memory increases
Answer: b) Fewer page faults occur
Q7. Match the following columns for the TCP/IP protocol stack:
| Protocol | TCP/IP Layer |
| 1. IP | A. Transport Layer |
| 2. UDP | B. Application Layer |
| 3. SMTP | C. Data Link Layer |
| 4. PPP | D. Network Layer |
a) 1-D, 2-A, 3-B, 4-C
b) 1-C, 2-A, 3-D, 4-B
c) 1-B, 2-C, 3-A, 4-D
d) 1-A, 2-C, 3-D, 4-B
Answer: a) 1-D, 2-A, 3-B, 4-C
Q8. Consider a system with byte-addressable memory, 32-bit logical addresses, 8 Kilobyte page size and page table entries of 4 Bytes each. The size of the page table in the system is:
a) 1 MB
b) 512 KB
c) 4 MB
d) 2 MB
Answer: d) 2 MB
Q9. The transport layer protocols used for real time multimedia, file transfer, DNS and email, respectively are:
a) TCP, UDP, UDP and TCP
b) UDP, TCP, TCP and UDP
c) TCP, UDP, TCP and UDP
d) UDP, TCP, UDP and TCP
Answer: d) UDP, TCP, UDP and TCP
Q10. In OSI network architecture, the routing is performed by:
a) Network Layer
b) Transport Layer
c) Data Link Layer
d) Session Layer
Answer: a) Network Layer
Previous Year – Cloud Computing NPTEL 2022 Week 0 Assignment Solutions
Q1. Consider a system with 2 level caches. Access times of Level 1 cache, Level 2 cache, and main memory are 2 ns, 12 ns, and 120 ns, respectively. The hit rates of Level 1, Level 2 cache, and main memory are 0.4, 0.6, and 1.0 respectively. What is the average access time of the system ignoring the search time within the cache?
a) 39.32 ns
b) 33.92 ns
c) 32.93 ns
d) 39.32 ms
Answer: b) 33.92 ns
Q2. Which of the following port can be used by a user defined program?
a) 1002
b) 47021
c) 60535
d) 65564
Answer: c) 60535
Q3. The memory locations 5000, 5001 and 5020 have data values 118, 101 and 116 respectively before the following program is executed.
| MOVI | R1, 1 |
| LOAD | R2, 5000(R1) |
| ADDI | R2, 5000 |
| STOREI | O(R2), 77 |
Which of the statements below is TRUE after the program is executed?
a) Memory location 5000 has value 77
b) Memory location 5020 has value 77
c) Memory location 5001 has value 77
d) Memory location 5101 has value 77
Answer: d) Memory location 5101 has value 77
Q4.
In the above-mentioned data path of a CPU, it is given; all the components of the data path are of identical sizes. ALU carries out all the operations including the incrementation of PC as well as GPRs. It needs two clock cycles to complete a memory read operation. For the instruction “add Rs, Rd”, which of the following statements is correct?
a) At least three clock cycles are needed to complete the execution cycle of the instruction.
b) At least five clock cycles are needed to complete the execution cycle of the instruction.
c) At least two clock cycles are needed to complete the execution cycle of the instruction.
d) At least four clock cycles are needed to complete the execution cycle of the instruction.
Answer: a) At least three clock cycles are needed to complete the execution cycle of the instruction.
Q5. The interrupt-request line is a part of the ___________
a) Data line
b) Address line
c) Control line
d) None of these
Answer: c) Control line
Q6. One of the header fields in an IP datagram is the Time to Live (TTL) field. Which of the following statements best explains the need for this field?
a) It can be used to prioritize packets
b) It can be used to reduce delays
c) It can be used to optimize throughput
d) It can be used to prevent packet looping
Answer: d) It can be used to prevent packet looping
Q7. Which of the following is wrong concerning to the OSI model?
a) File transfer protocol (FTP) is a part of transport layer
b) Transmission control protocol (TCP) is a part of transport layer
c) User datagram protocol (UDP) is a part of transport layer
d) None of the above
Answer: a) File transfer protocol (FTP) is a part of transport layer
Q8. If a class B network on the Internet has a subnet mask of 255.255.240.0, what is the maximum number of hosts per subnet?
a) 4096
b) 4094
c) 2046
d) 2048
Answer: b) 4094
Q9. In classful addressing, an IP address 244.223.156.41 belongs to _____ format.
a) Class A
b) Class B
c) Class C
d) Class D
Answer: d) Class D
Q10. A computer’s processor sends 32 bit addresses to the cache controller. It has a 512 KByte, 8-way set associative, write back data cache with block size of 32 Bytes. In addition to the address tag, each cache tag directory entry contains 3 valid bits and 1 modified bit. Find the size of the cache tag directory.
a) 212 Kbits
b) 320 Kbits
c) 160 Kbits
d) 120 Kbits
Answer: b) 320 Kbits
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