BCS 450 Lecture Notes - Denial-Of-Service Attack, Ddos Mitigation

An organization developed a social media application that is used by customers in multiple remote geographic locations around the world. The organization's headquarters and only datacenter are located in New York City. The Chief Information Security Officer wants to ensure the following requirements are met for the social media application:

Low latency for all mobile users to improve the users' experience

SSL offloading to improve web server performance

Protection against DoS and DDoS attacks

High availability

Which of the following should the organization implement to BEST ensure all requirements are met?

Options:
A. A cache server farm in its datacenter
B. A load-balanced group of reverse proxy servers with SSL acceleration
C. A CDN with the origin set to its datacenter
D. Dual gigabit-speed Internet connections with managed DDoS prevention

A company created an external application for its customers. A security researcher now reports that the application has a serious LDAP injection vulnerability that could be leveraged to bypass authentication and authorization. Which of the following actions would BEST resolve the issue? (Choose two.) :

A. Deploy a WAF.

B. Use containers.

C. Conduct input sanitization.

D. Patch the OS

E. Deploy a reverse proxy

F. Deploy a SIEM. .

G Deploy an IDS. 

A network architect is designing a new SD-WAN architecture to connect all local sites to a central hub site. The hub is then responsible for redirecting traffic to public cloud and datacenter applications. The SD-WAN routers are managed through a SaaS, and the same security policy is applied to staff whether working in the office or at a remote location. The main requirements are the following:

1. The network supports core applications that have 99.99% uptime.

2. Configuration updates to the SD-WAN routers can only be initiated from the management service.

3. Documents downloaded from websites must be scanned for malware.

Which of the following solutions should the network architect implement to meet the requirements?

Options:

A Reverse proxy, stateful firewalls, and VPNs at the local sites
B IDSs, WAFs, and forward proxy IDS
C DoS protection at the hub site, mutual certificate authentication, and cloud proxy
D IPSs at the hub, Layer 4 firewalls, and DLP