02 Jul Answer Discussions
Question Description
After reading this week’s materials, please respond to one or more of the following questions.
Describe the differences between bus, ring, star and mesh topologies.
Explain the TCP/IP Model in terms of functions at each layer. How do the layers map to the OSI Model layers?
The Transport layer provides two service protocols: UDP and TCP. Explain the differences between the two protocols in terms of guaranteed vs. non-guaranteed service and connection-oriented versus connection-less communication.
Describe the different WLAN standards within the 802.11 family. What is a rogue access point?
After reading this week’s materials, please respond to one or more of the following questions.
Describe the functions of hubs/repeaters, bridges, switches, routers, and gateways. At what layers of the OSI model does each device operate?
Describe the following types of network attacks: denial of service (and DDoS), malformed packet attacks, flooding, sniffing, Ransomware, DNS hijacking, and drive-by download. Give an example of a DoS or DDoS attack and describe how it overwhelms a target system.
Depending on their needs and budget, companies can choose from a variety of perimeter security options. Discuss the differences between packet-filtering, stateful inspection, proxy, dynamic packet filtering, kernel proxy, and next generation firewalls and how they provide security filtering to protect the perimeter.
After reading this week’s materials, please respond to one or more of the following questions.
Describe the controls contained within the three Access Control categories that can be integrated within a defense-in-depth model and give an example of one that you have read about or have knowledge of from your own experience.
Describe three threats to Access Control from what were covered within the reading and give an example of each.
Describe three of the intrusion detection system types used in access control monitoring covered within the reading. What is a honeypot and what are the legal concerns with using them?
What are the challenges that an Identity and Access Management system helps overcome? What benefits does it provide?
Describe the process of Identification, Authentication, Authorization, and Accountability. What is a race condition?
Discuss the single sign-on technologies Kerberos, security domains, directory services and thin clients. What does federation provide?
After reading this week’s materials, please respond to one or more of the following questions.
Describe the steps in the information system security audit process.
Describe the differences between Black box, White box, and Gray box forms of vulnerability and penetration testing.
What are the five steps a team goes through when conducting a penetration test? What are the three degrees of knowledge that a penetration team can have about the target?
Discuss any three of the commonly exploited vulnerabilities targeted in penetration tests and the appropriate countermeasures to mitigate them.
Discuss the various test types that Operations and Security Departments should carry out to monitor the environment’s vulnerability to attack.
Define the following KPI terms: factor, measurement, baseline, metric, and indicator. What is the difference between a KPI and KRI?
What are the key elements that should be included in a good technical audit report? What should be included to provide senior management a brief overview of the report highlights?
After reading this week’s materials, please respond to one or more of the following questions.
Describe the main components of a CCTV system. What are some of the concerns with CCTV deployments?
Define the different types of trusted recovery. What is meant by the term “fail secure”?
What is Change Management and how is it used to control security breaches? What is Configuration Management and how is it used to control security breaches? What is Patch management and how is it used to control security breaches?
After reading this week’s materials, please respond to one or more of the following questions.
Compare mean time between repair (MTTR) and mean time between failures (MTBF). Why can more components actually mean less reliability?
Define the full, incremental, and differential backups and describe the differences between these data backup types.
Describe the differences between disk shadowing, electronic vaulting, and remote journaling. What is disk duplexing and how does it differ from disk mirroring?
Describe the different methods of RAID. What is MAID? What is RAIT?
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