VMware 2V0-72.22 Exam Questions Instant Access

Question 1

Which two statements are correct regarding the differences between @ConfigurationProperties and @Value? (Choose two.)

A@Value must be used for environment variables, as @ConfigurationProperties cannot access the environment.

B@Value supports relaxed binding of properties, but not property binding through SpEL.

C@ConfigurationProperties is preferable over @Value when type-safety during property binding is a concern.

D@ConfigurationProperties only bind properties from .properties files, not from .yml files.

E@ConfigurationProperties supports relaxed binding of properties, but not property binding through SpEL.

Answer : C, E

https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#features.external-config.typesafe-configuration-properties.vs-value-annotation

Question 2

Which strategy is correct for configuring Spring Security to intercept particular URLs? (Choose the best answer.)

AThe URLs can be specified via configuration (using authorizeRequests () and request matchers), with the most specific rule first and the least specific last.

BSpring Security can obtain URLs from Spring MVC controllers, the Spring Security configuration just needs a reference to the controller to be protected.

CThe URLs are specified in a special properties file, used by Spring Security.

DThe URLs can be specified via configuration (using authorizeRequests () and request matchers), with the least specific rule first and the most specific last.

Answer : A

Spring Security provides a fluent API for configuring web security based on URL patterns and request matchers. The authorizeRequests() method returns an expression that allows specifying access rules for different URLs using methods such as antMatchers(), regexMatchers(), mvcMatchers(), etc. The order of these rules matters, as they are evaluated from top to bottom. Therefore, it is recommended to put the most specific rules first and the least specific ones last.

Question 3

Which two statements are true about REST? (Choose two.)

AREST is a Protocol.

BREST is Stateful.

CREST is Reliable.

DREST is Interoperable.

EREST is Relative.

Answer : A, D

Question 4

Which two statements are true about Spring AOP? (Choose two.)

AThe @After advice type is invoked regardless of whether a method successfully returned or an exception was thrown.

BIn Spring AOP, a join point represents a method execution or property access.

CSpring AOP does not use AspectJ's pointcut expression language.

DExamples of cross-cutting concerns include security, caching, transaction.

EThere are in total 4 types of advice, @Before, @After, @AfterReturning and @AfterThrowing.

Answer : A, D

Question 5

In which three ways are Security filters used in Spring Security? (Choose three.)

ATo provide risk governance.

BTo drive authentication.

CTo manage application users.

DTo provide a logout capability.

ETo enforce authorization (access control).

FTo encrypt data.

Answer : B, D, E

Spring Security uses a filter-based architecture to provide security services for web applications. A filter is an object that intercepts HTTP requests and responses and performs some logic before or after the request is processed by the servlet. Spring Security provides a number of filters for different purposes, such as:

Authentication: Filters that handle the authentication process, such as UsernamePasswordAuthenticationFilter, BasicAuthenticationFilter, RememberMeAuthenticationFilter, etc.

User management: Filters that manage the user details and roles, such as SecurityContextPersistenceFilter, AnonymousAuthenticationFilter, ConcurrentSessionFilter, etc.

Logout: Filters that handle the logout process, such as LogoutFilter and SecurityContextLogoutHandler.

Authorization: Filters that enforce access control rules based on the user's authentication and roles, such as FilterSecurityInterceptor, ExceptionTranslationFilter, etc.

Question 6

Which dependency enables an automatic restart of the application as code is changed during development of a Spring boot configuration on a web application? (Choose the best answer.)

Aspring-boot-devtools

Bspring-boot-initializr

Cspring-boot-starter-devtools

Dspring-boot-restart

Answer : C

Spring Boot provides a set of tools for improving the development experience, such as automatic restart, live reload, remote debugging, etc. These tools are included in the spring-boot-starter-devtools dependency, which can be added to the project's pom.xml or build.gradle file. The automatic restart feature will monitor the classpath for changes and trigger a restart of the application when necessary.

Question 7

Which two statements are true regarding a Spring Boot-based Spring MVC application? (Choose two.)

AThe default embedded servlet container can be replaced with Undertow.

BJetty is the default servlet container.

CSpring Boot starts up an embedded servlet container by default.

DThe default port of the embedded servlet container is 8088.

ESpring MVC starts up an in-memory database by default.

Answer : A, C

Spring Boot provides a convenient way to create Spring MVC applications with minimal configuration. By default, it uses Tomcat as the embedded servlet container, but it also supports other containers such as Jetty and Undertow. To use a different container, we just need to exclude the spring-boot-starter-tomcat dependency and include the corresponding starter for the desired container. For example, to use Undertow, we can add the following dependencies in our pom.xml:

<dependency> <groupId>org.springframework.boot</groupId> spring-boot-starter-web <exclusions> <exclusion> <groupId>org.springframework.boot</groupId> spring-boot-starter-tomcat </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework.boot</groupId> spring-boot-starter-undertow </dependency>

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