Cloud Network Security: Architecture and Security Concepts

Question 1

In cloud computing, what's the main reason for using a firewall?

Accepted Answer

To keep people from getting into cloud resources and services without permission

Answer

To make sure data in the cloud is encrypted

Answer

To make cloud apps run faster

Question 2

Which of the following is a fundamental component of a cloud network architecture?

Accepted Answer

Virtual Private Clouds (VPCs)

Answer

Serverless functions

Answer

Object storage

Answer

Virtual machines

Question 3

What is the primary function of a firewall within a cloud network?

Accepted Answer

Regulating access to and from the network

Answer

Storing data securely

Answer

Optimizing network performance

Question 4

Which access control model is commonly implemented in cloud networks?

Accepted Answer

Role-Based Access Control (RBAC)

Answer

Discretionary Access Control (DAC)

Answer

Attribute-Based Access Control (ABAC)

Answer

Mandatory Access Control (MAC)

Question 5

What is a key benefit of utilizing a Virtual Private Cloud (VPC) in a cloud network?

Accepted Answer

Enhanced network isolation and security

Answer

Reduced networking costs

Answer

Improved network performance

Answer

Elimination of physical network infrastructure

Question 6

Which data security practice is considered a best practice in cloud networks?

Accepted Answer

Encrypting data at rest and during transit

Answer

Storing data across multiple cloud providers

Answer

Allowing unrestricted public access to data

Answer

Employing weak and easily guessable passwords

Question 7

What is the fundamental distinction between a public cloud network and a private cloud network?

Accepted Answer

Public cloud networks are accessible via the internet, while private cloud networks are isolated and not publicly accessible.

Answer

Public cloud networks are more cost-effective than private cloud networks.

Answer

Public cloud networks provide superior security compared to private cloud networks.

Question 8

Which tool is specifically designed for network management in cloud environments?

Accepted Answer

CloudWatch Network Insights

Answer

Wireshark

Answer

Nmap

Answer

tcpdump

Question 9

What is a primary purpose of utilizing a content delivery network (CDN) in a cloud network?

Accepted Answer

Enhancing the delivery speed and performance of web content

Answer

Ensuring data protection and security in the cloud

Answer

Managing and controlling virtual machines

Answer

Establishing secure connections to private networks

Question 10

Which of the following is a fundamental building block of cloud network architecture?

Accepted Answer

Virtual Private Cloud (VPC)

Answer

Physical Server

Answer

Local Area Network (LAN)

Answer

Wide Area Network (WAN)

Question 11

What is the primary function of a firewall in a cloud network?

Accepted Answer

Regulate network traffic flow and access

Answer

Detect and mitigate malware threats

Answer

Enhance network performance

Answer

Ensure secure data storage

Question 12

Which of the following is a significant security concern in cloud networks?

Accepted Answer

Data breaches

Answer

Software malfunctions

Answer

Network congestion

Answer

Hardware failures

Question 13

What is the primary purpose of access control in cloud networking?

Accepted Answer

Manage and restrict access to network resources

Answer

Encrypt network data

Answer

Monitor network traffic

Question 14

Which of the following is considered a best security practice for cloud networks?

Accepted Answer

Implement strong passwords and multi-factor authentication

Answer

Grant unrestricted access to all resources

Answer

Disable network firewalls

Question 15

What is the key benefit of utilizing a Virtual Private Cloud (VPC) in a cloud network?

Accepted Answer

Provides a dedicated, isolated network segment

Answer

Reduces network latency

Answer

Automatically scales network resources

Answer

Eliminates the need for physical firewalls

Question 16

Which type of cloud network security tool is designed to detect and respond to security breaches?

Accepted Answer

Intrusion Detection System (IDS)

Answer

Database Management System

Answer

Virtual Machine (VM)

Answer

Load Balancer

Question 17

What is the primary role of a Network Access Control List (ACL) in cloud networks?

Accepted Answer

Define access permissions to specific network resources

Answer

Prevent Denial-of-Service (DoS) attacks

Answer

Route network traffic

Question 18

Which cloud network architecture is designed to ensure high availability and resilience?

Accepted Answer

Active-active architecture

Answer

Hub-and-spoke architecture

Answer

Single-point-of-failure architecture

Answer

Active-passive architecture

Question 19

What is a defining difference between a cloud network and a傳統 on-premises network?

Accepted Answer

Cloud networks are virtualized and scalable, while on-premises networks are physical and fixed in nature

Answer

Cloud networks are inherently less secure than on-premises networks

Answer

Cloud networks are typically more expensive than on-premises networks

Question 20

Identify the network component primarily responsible for controlling and monitoring inbound and outbound network traffic in a cloud environment.

Accepted Answer

Network firewall

Answer

Web server

Answer

DNS server

Answer

DHCP server

Question 21

Which cloud networking component is responsible for assigning IP addresses to virtual machines (VMs) within a cloud network?

Accepted Answer

DHCP server

Answer

Web server

Answer

Firewall

Answer

DNS server

Question 22

When designing a cloud network architecture, which security consideration is of utmost importance?

Accepted Answer

Data protection and encryption

Answer

Network availability and redundancy

Answer

Cost optimization

Answer

Scalability and performance

Question 23

Identify the network protocol used to establish secure communication channels between cloud-based resources.

Accepted Answer

TLS

Answer

FTP

Answer

HTTP

Answer

SSH

Question 24

Which network topology is commonly employed in cloud networks to enhance availability and fault tolerance?

Accepted Answer

Active-active network

Answer

Star network

Answer

Bus network

Answer

Active-passive network

Question 25

Identify the cloud security service that provides centralized access control and identity management for various cloud resources.

Accepted Answer

Identity and Access Management (IAM)

Answer

Cloud Functions

Answer

Cloud Storage

Answer

Cloud Firestore

Question 26

What is a key benefit of utilizing a content delivery network (CDN) in cloud applications?

Accepted Answer

Enhanced performance and reduced latency

Answer

Lower operational costs

Answer

Enhanced scalability

Answer

Increased data security

Question 27

In a cloud network, which type of firewall rule permits traffic from any source to reach a specific destination port?

Accepted Answer

Ingress allow rule

Answer

Egress allow rule

Answer

Egress deny rule

Answer

Ingress deny rule

Question 28

What is the primary purpose of implementing network segmentation in a cloud environment?

Accepted Answer

To divide the network into isolated segments to enhance security and improve performance

Answer

To reduce the number of physical network devices required

Answer

To simplify network management and troubleshooting

Question 29

Which of the following cloud networking protocols is responsible for assigning IP addresses to devices on the network?

Accepted Answer

DHCP (Dynamic Host Configuration Protocol)

Answer

ICMP (Internet Control Message Protocol)

Answer

HTTP (Hypertext Transfer Protocol)

Answer

DNS (Domain Name System)

Question 30

What is a primary security risk associated with cloud networking?

Accepted Answer

Unauthorized access to sensitive data and resources

Answer

Vulnerability to malware and virus attacks

Answer

Network performance issues caused by congestion or latency

Answer

Data loss due to hardware failures

Question 31

Which of the following security measures is used to protect data in transit over a cloud network?

Accepted Answer

Data encryption

Answer

Implementing multi-factor authentication

Answer

Network segmentation

Answer

Use of access control lists

Question 32

What is the recommended approach for managing the security of a cloud network?

Accepted Answer

Implementing a defense-in-depth approach with multiple layers of security

Answer

Using open-source security tools and community support

Answer

Relying solely on the security measures provided by the cloud provider

Question 33

Which of the following cloud network monitoring tools is used to detect and respond to security threats?

Accepted Answer

Cloud-based logging and monitoring services

Answer

Network performance monitoring tools

Answer

Anti-virus and anti-malware software

Answer

Manual network audits

Question 34

Which of the following cloud network architectures provides the most isolation and security for cloud resources?

Accepted Answer

Dedicated virtual private cloud (VPC) with private subnets

Answer

Hybrid VPC with a mix of private and public subnets

Answer

Shared VPC with public subnets

Answer

Public VPC with public subnets

Question 35

What is the primary function of a firewall within a cloud network?

Accepted Answer

Controlling and restricting access to the network

Answer

Detecting and responding to security breaches

Answer

Enhancing network performance

Answer

Protecting against malicious software

Question 36

Which approach is considered a best practice for implementing access control within a cloud network?

Accepted Answer

Implementing role-based access control (RBAC)

Answer

Disabling auditing

Answer

Granting access to all users

Answer

Using default passwords

Question 37

Which type of security threat poses a significant risk to cloud networks?

Accepted Answer

Distributed denial-of-service (DDoS) attacks

Answer

SQL injection

Answer

Malware

Answer

Phishing

Question 38

What is the primary objective of a cloud security posture management (CSPM) tool?

Accepted Answer

To monitor and assess the security posture of cloud environments

Answer

To manage security patches

Answer

To detect and respond to security breaches

Question 39

What is the fundamental difference between a virtual network gateway (VNG) and a virtual private gateway (VGW)?

Accepted Answer

A VNG connects a cloud network to an on-premises network, while a VGW connects a cloud network to another cloud network.

Answer

A VNG offers higher security compared to a VGW.

Question 40

What is the primary purpose of a firewall in a cloud network?

Accepted Answer

To enforce security rules on network traffic

Answer

To store network settings

Answer

To connect multiple VPCs

Answer

To encrypt data

Question 41

What is the essential role of a security group in a cloud network?

Accepted Answer

To define traffic filtering rules for instances

Answer

To manage user access permissions

Answer

To configure network routing

Answer

To safeguard data during transmission

Question 42

Which security measure is of utmost importance for protecting data in cloud networks?

Accepted Answer

Encryption

Answer

Network segmentation

Answer

Firewall configuration

Answer

Access control

Question 43

Which type of network attack is commonly employed to target cloud networks?

Accepted Answer

Distributed Denial of Service (DDoS)

Answer

SQL injection

Answer

Man-in-the-Middle (MITM)

Answer

Cross-site scripting (XSS)

Question 44

What is the key difference between a public cloud network and a private cloud network?

Accepted Answer

Public cloud networks are accessible over the Internet, while private cloud networks are typically not

Answer

Public cloud networks are more expensive to own and operate than private cloud networks

Answer

Public cloud networks are more inherently secure than private cloud networks

Question 45

Which type of firewall controls traffic flowing between resources within a VPC?

Accepted Answer

Internal firewall

Answer

Application firewall

Answer

Network firewall

Answer

External firewall

Question 46

Which of the following is a security best practice for managing access to cloud resources?

Accepted Answer

Implement least privilege access controls

Answer

定期监视用户活动

Answer

Use strong passwords

Answer

Enable multi-factor authentication

Question 47

Which of the following is a type of data protection mechanism used in cloud networks?

Accepted Answer

Encryption

Answer

Redaction

Answer

Tokenization

Answer

Masking

Question 48

Which of the following is a challenge associated with securing cloud networks?

Accepted Answer

Distributed nature of resources

Answer

Lack of visibility into network traffic

Answer

Shared responsibility model

Answer

Complexity of cloud configurations

Question 49

Which of the following is a key aspect of cloud network security monitoring?

Accepted Answer

Analyze log data and audit trails

Answer

Conduct penetration testing

Answer

Use vulnerability scanning tools

Question 50

Which of the following is a benefit of using a cloud-managed firewall?

Accepted Answer

Centralized management and visibility across cloud resources

Answer

Increased flexibility and scalability

Answer

Lower cost compared to on-premises firewalls

Question 51

Which of the following is a technique used to improve the security of public-facing cloud networks?

Accepted Answer

Implement Bastion hosts

Answer

Enable IP filtering

Answer

Use private subnets

Question 52

Which of the following is a cloud networking service that provides secure, isolated connectivity between on-premises and cloud environments?

Accepted Answer

VPN gateway

Answer

Direct connect

Answer

VPC peering

Answer

Cloud interconnect

Question 53

Which of the following is a best practice for managing security in a multi-cloud environment?

Accepted Answer

Establish a consistent security policy across all clouds

Answer

Use different security vendors for each cloud

Answer

Centralize all security management in one cloud