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WorksheetsNPTEL-CLOUD COMPUTING-PRACTICE TEST-4 2025
Total questions: 40
Worksheet time: 22mins
Consider a system with 2 level caches. Access times of Level 1 cache, Level 2 cache, and main memory are 2 ns, 10 ns, and 200 ns, respectively. The hit rates of Level 1 and Level 2 caches are 0.8 and 0.9, respectively. What is the average access time of the system ignoring the search time within the cache?
8.6 ns
6.2 ns
7.4 ns
6.4 ns
A computer’s processor sends 32 bit addresses to the cache controller. It has a 512 KB, 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
212 Kbits
320 Kbits
160 Kbits
120 Kbits
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?
It can be used to prioritize packets
It can be used to reduce delays
It can be used to optimize throughput
It can be used to prevent packet looping
Which of the following system calls results in the sending of SYN packets?
socket
connect
listen
bind
If a class B network on the Internet has a subnet mask of 255.255.248.0, what is the maximum number of hosts per subnet?
1022
2048
2045
2046
In classful addressing, an IP address 123.23.56.4 belongs to format.
Class A
Class B
Class C
Class D
Count to infinity is a problem associated with
Link state routing protocol.
Distance vector routing protocol
DNS while resolving host name
TCP for congestion control
Which of the following is/are properties of distributed computing?
Fault tolerance
Resource sharing
Load sharing
None of the above
Which of the following is/are a type of Grid?
Computational Grid
Data Grid
Edge Grid
All of the above
“On demand cyber infrastructure” - is better identified with which of the following?
Grid Computing
Cluster Computing
Utility Computing
Both ‘a’ and ‘b’
Which of the following is false about cloud computing?
Cloud computing is to realize service oriented architecture.
It is on-demand self-service.
Resource release needs maximal service provider interaction.
Provides on demand network access to a shared pool of resources.
Which of the following is not an essential characteristic of cloud computing?
Low cost software
Resource pooling
On-demand self-service
Broad network access
Which of the following is false?
Community cloud is a composition of public and private cloud.
Private cloud is dedicated solely to an organization.
Public cloud is available to the general public.
None of these
Which of the following statements about virtualization is/are true?
I. Network virtualization provides a facility to create and provision virtual networks.
II. Migration of virtual machines is difficult.
III. Virtualization emulates more machines than are exactly available.
I & II are true
I & III are true
Only I is true
All
Vertical scale up is
Splitting workload across multiple computational units
Adding more resources to a single computation
Adding additional computational units
All of the above
Which of the following is one of the characteristics of PaaS?
Provides tools to deploy user applications
Application is provided by the cloud provider
Resources are distributed as a service
None of these
Which of the following is/are type(s) of Cluster?
Load Balancing Cluster
Cost Effective Cluster
Failover Cluster
Energy Efficient Cluster
Which of the following is not an example of Public Cloud?
IBM Smart Cloud
Amazon EC2
Amazon VPC
Google App Engine
Statement 1: Private Cloud may exist off premises.
Statement 2: Private Cloud can be managed by a third party.
Statement 1 is true.
Statement 2 is true.
Both the statements are true
None of the statements are true.
VMware vCloud is an example of which kind of cloud deployment model?
Public Cloud
Private Cloud
Community Cloud
Hybrid Cloud
Which of the following statement(s) is false about virtualization?
Allows running multiple OSes simultaneously with no isolation
Allows one computer to do job of multiple computers
Allows running multiple virtual containers on a single physical platform
None of these
Sometimes XML along with XSLT is characteristics wise equivalent to HTML.
True
False
Universal Description, Discovery, and Integration (UDDI) is a data interchange format to store and transmit data objects consisting of attribute-value pairs.
True
False
Which of the following statements is false?
XML is written using printable Unicode characters
XML lets you define your own data type
XML parser continues processing even if the data is not well formed
None of the above
Statement 1: Cluster manager can be geographically distributed in the IaaS cloud service model.
Statement 2: Within a cluster manager, the computer manager is connected by a high speed network in the IaaS cloud service model.
Only statement 1 is true
Only statement 2 is true
Both the statements are true
Both the statements are false
Which of the following is false about SLA contents
A complete, specific definition of each service
An auditing mechanism to monitor the services
The responsibilities of the provider only
None of these
Which of the following is correct about Availability?
Availability = 1- (UpTime / TotalTime)
Availability = 1- (DownTime / UpTime)
Availability = 1+ (DownTime / UpTime)
Availability = 1+ (UpTime / DownTime)
Which of the following data warehousing databases is/are capable of handling parallel processing?
Oracle
Vertica
SQLServer
None of these
Which of the following is/are the component(s) of Azure?
Compute
Storage
Fabric
None of these
Google cloud platform can automatically scale up to handle the most demanding workload but can’t scale down when traffic subsides.
True
False
Which of the following is not an App service provided by Google Cloud Platform Services?
BigQuery
Cloud Endpoints
Caching
Cloud SQL
Statement 1: Google Cloud Platform is a set of services that enables developers to build, test and deploy applications in Google’s reliable infrastructure.
Statement 2: Google Cloud Platform is a set of modular cloud-based services
Only statement 1 is true
Only statement 2 is true
Both the statements are true
None of the statements are true
Identify the correct option
Microsoft Azure is a PaaS vendor
Microsoft Azure is a IaaS vendor
Microsoft Azure is a SaaS vendor
None of these
Which of the following is not a computation role provided by Windows Azure?
Web Role
Server Role
Worker Role
None of these
Pick the correct option
Google Cloud Endpoints considers migrating user’s web applications to Google Cloud Platform.
Google App Engine helps end users’ application scalability.
Google APIs integrate Google’s services into the end user’s application.
None of these
Which of the following is/are not a possible parameter of service level agreement (SLA) in cloud?
Response Time or Latency
Availability of the Services
Electricity Cost
Warranty of the Services
Which scenario demands highest bandwidth for data transfer between nodes in Hadoop?
Different nodes on the same rack
Nodes on different racks in the same data center.
Nodes in different data centers
Data on the same node
In a SLA negotiation, provider agreed with the service availability X%. Consumer runs the application for 15hours/day.
At the end of one month [31 days], it was found that total service outage is 10 hrs. However, SLA negotiation (in terms of service availability) is honored.
X is atleast 97.8
X is atmost 97.8
X is exactly 99
Insufficient information
Security responsibilities of a IaaS cloud service provider is typically upto
Hypervisor
Application
Guest OS
Solution Stack
The period of time allowed for recovery is known as
Recovery Time Objective (RTO)
Recovery Point Objective (RPO)
Recovery Instance Objective (RIO)
None of these
