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web.groovymark@gmail.com
- November 17, 2024
Question 41
Which SDN mechanism involves creating replicas of key network components to ensure that services remain available during attacks?
a) Replication
b) Controller-Switch trust
c) Dynamic device association
d) Shuffling
Correct Answer: a) Replication
Explanation: Replication involves creating replicas of important network components, ensuring that services remain available even if some components are compromised during an attack.
Question 42
Which OpenStack service provides database management capabilities, allowing users to deploy and manage relational and non-relational databases?
a) Trove
b) Glance
c) Neutron
d) Cinder
Correct Answer: a) Trove
Explanation: Trove is the OpenStack service that provides database-as-a-service (DBaaS), allowing users to deploy and manage relational and non-relational databases in the cloud.
Question 43
Which SDN mechanism allows the network to recover from attacks by dynamically adjusting how network devices are associated with controllers?
a) Dynamic device association
b) Controller-Switch trust
c) Fine-grained data flow management
d) Replication
Correct Answer: a) Dynamic device association
Explanation: Dynamic device association ensures that network devices are dynamically associated with the correct controllers, allowing the network to recover from attacks and improve fault tolerance.
Question 44
Which OpenStack service provides a key management system, securely storing encryption keys, certificates, and other sensitive data?
a) Barbican
b) Trove
c) Swift
d) Glance
Correct Answer: a) Barbican
Explanation: Barbican is the OpenStack service responsible for securely storing encryption keys, certificates, and other sensitive data, helping to maintain data privacy and security in the cloud.
Question 45
Which SDN security mechanism involves adjusting how traffic flows through the network to prevent attacks and improve performance?
a) Fine-grained data flow and policy management
b) Replication
c) Dynamic device association
d) Controller-Switch trust
Correct Answer: a) Fine-grained data flow and policy management
Explanation: Fine-grained data flow and policy management adjusts how traffic flows through the network, helping to prevent attacks and improve overall network performance by reducing the attack surface.
Question 46
Which OpenStack service provides big data processing capabilities, enabling users to manage Hadoop clusters and other big data frameworks?
a) Sahara
b) Trove
c) Glance
d) Neutron
Correct Answer: a) Sahara
Explanation: Sahara is the OpenStack service responsible for managing Hadoop clusters and other big data frameworks, providing users with scalable data processing capabilities in the cloud.
Question 47
Which SDN API enables external applications to communicate with the SDN controller and request network services?
a) Northbound API
b) Southbound API
c) East/Westbound API
d) Data plane
Correct Answer: a) Northbound API
Explanation: The northbound API enables external applications to communicate with the SDN controller, allowing them to request network services and manipulate network behavior in real time.
Question 48
Which OpenStack service provides shared file system management, enabling virtual machines to access shared storage across compute instances?
a) Manila
b) Swift
c) Cinder
d) Neutron
Correct Answer: a) Manila
Explanation: Manila is the OpenStack service responsible for managing shared file systems, allowing virtual machines to access shared storage across multiple compute instances.
Question 49
Which SDN mechanism allows the network to dynamically recover from attacks by rearranging network configurations and paths?
a) Shuffling
b) Dynamic device association
c) Replication
d) Fine-grained data flow management
Correct Answer: a) Shuffling
Explanation: Shuffling rearranges network configurations and paths in response to attacks, helping to protect the network from further exploitation and improving network resilience.
Question 50
Which OpenStack service allows users to manage virtual machine images, enabling the creation and maintenance of images across the compute cluster?
a) Glance
b) Swift
c) Cinder
d) Trove
Correct Answer: a) Glance
Explanation: Glance is the OpenStack service responsible for managing virtual machine images, allowing users to create, maintain, and deploy VM images across the compute cluster.
