Deck 15: Web Services, Messaging, and Load Balancing

Question 1

Tomcat doesn't support JAX-WS by itself.

Answer 1

True

Question 2

CXF represents the consolidation of the Celtix and XFire projects, which each had useful SOAP support.

Answer 2

True

Question 3

Factory to use our Spring bean as the implementation:-

A)jaxws:end
B)jaxws:endpoint
C)all of the mentioned
D)none of the mentioned

Answer 3

jaxws:endpoint

Question 4

client() class provides ___________to create topics.

A)software
B)classes
C)methods
D)batch

Question 5

___________method publishes messages to pub/sub.

A)client()
B)publish()
C)server()
D)batch()

Question 6

How many arguments are accepted by publish()?

A)5 arguments
B)3 arguments
C)1 argument
D)2 arguments

Question 7

Does publish() method accepts arbitrary arguments.

Question 8

The topic in the publish method is in which form?

A)binomial form
B)canonical form
C)nominal form
D)message form

Question 9

The message in pub/sub is an opaque blob of ___________

A)bits
B)bytes
C)word
D)nibble

Question 10

___________error will show if we try to send text string instead of bytes.

A)typeerror
B)error
C)linker error
D)compiler error

Question 11

What do we call string in python 2?

A)str
B)unicode
C)strs
D)unicades

Question 12

When you publish a message ___________is automatically created?

A)client
B)server
C)batch
D)server.

Question 13

When the batch is created, it begins a countdown that publishes the batch once sufficient time has elapsed.

Question 14

What is the time elapsed after a batch is created?

A)0.5 seconds
B)0.05 seconds
C)1.5 seconds
D)1 second

Question 15

Every call to publish() will return a class that conforms to the ___________    interface.

A)batch
B)client
C)server
D)future

Question 16

Point out the wrong statement.

A)abstraction enables the key benefit of cloud computing: shared, ubiquitous access
B)virtualization assigns a logical name for a physical resource and then provides a pointer to that physical resource when a request is made
C)all cloud computing applications combine their resources into pools that can be assigned on demand to users
D)all of the mentioned

Question 17

Which of the following type of virtualization is also characteristic of cloud computing?

A)storage
B)application
C)cpu
D)all of the mentioned

Question 18

The technology used to distribute service requests to resources is referred to as

A)load performing
B)load scheduling
C)load balancing
D)all of the mentioned

Question 19

Point out the correct statement.

A)a client can request access to a cloud service from any location
B)a cloud has multiple application instances and directs requests to an instance based on conditions
C)computers can be partitioned into a set of virtual machines with each machine being assigned a workload
D)all of the mentioned

Question 20

Which of the following software can be used to implement load balancing?

A)apache mod_balancer
B)apache mod_proxy_balancer
C)f6's bigip
D)all of the mentioned

Question 21

Which of the following network resources can be load balanced?

A)connections through intelligent switches
B)dns
C)storage resources
D)all of the mentioned

Question 22

Which of the following is a more sophisticated load balancer?

A)workload managers
B)workspace managers
C)rackserve managers
D)all of the mentioned

Question 23

A_________  is a combination load balancer and application server that is a server placed between a firewall or router.

A)abc
B)acd
C)adc
D)all of the mentioned

Question 24

Which of the following should be replaced with the question mark in the following figure?

A)abstraction
B)virtualization
C)mobility pattern
D)all of the mentioned

Question 25

In memory-mapped I/O __________  

A)the i/o devices and the memory share the same address space
B)the i/o devices have a separate address space
C)the memory and i/o devices have an associated address space
D)a part of the memory is specifically set aside for the i/o operation