Network services

Correct Answer: Content delivery network (CDN)

The correct answer is 'Content delivery network (CDN)'. A CDN is a system of distributed networks that deliver pages and other web content to users based on their geographic locations. This is how it will significantly reduce the loading time of a site, as the content would load from the server closest to the users, whom are staff members in this case. As for the incorrect options: 'VPN concentrator' is not related to the page loading time, but more on managing the secure access to a private network from various locations. 'IPv6 addressing' is an internet protocol used for routing web traffic, but has no direct impact on the page loading time. A 'RADIUS server' simply authenticates users accessing a network but will not improve webpage load times.

Correct Answer: Implement an Intrusion Prevention System (IPS)

In the given scenario, the organization is receiving a large number of connection attempts on non-standard ports, which is potentially an attempt to exploit vulnerabilities in the web portal. Therefore, implementing an Intrusion Prevention System (IPS) would be the most effective solution to mitigate this issue as it would block these suspicious connection attempts improving performanceUpgrading the web server software would not necessarily stop the suspicious connection attempts from occurring. It is also not specified that web server software is outdated or causing the problemImplementing a Quality of Service (QoS) policy might improve the network performance but it would not provide a solution against a possible security threat, which is causing a slow performance. It mainly focuses on managing network resources to provide certain levels of performance to certain types of trafficInstalling a new DHCP server would not help in this scenario because DHCP is related to the allocation of IP addresses within the network and the issue presented is related to a large number of connection attempts on non-standard ports.

Correct Answer: Amazon Virtual Private Cloud (VPC)

Amazon Virtual Private Cloud (VPC) is the correct answer because it allows you to create a logically isolated section of the AWS Cloud where you can launch AWS resources in a virtual network that you define. You have complete control over your virtual networking environment, including selection of your own IP address range, creation of subnets, and configuration of route tables and network gateways. AWS Direct Connect is incorrect as it establishes a dedicated network connection from your premises to AWS, but does not create a logically isolated section within AWS. Amazon Route 53 is a DNS web service, not a networking service for creating isolated virtual networks. AWS Transit Gateway enables connecting VPCs and on-premises networks to a single gateway, but it is not the primary service for creating logically isolated sections in the AWS Cloud.