WGU Updated Network-and-Security-Foundation Exam Questions and Answers by rehmat

TheApplication layer(Layer 7 of the OSI model) includesHypertext Transfer Protocol (HTTP), which is used for web communication. This layer provides network services directly to applications and users.

Network layerdeals with IP addressing and packet routing.

Session layermanages connections but does not include HTTP.

Transport layerensures reliable data transmission but does not handle application protocols.

Detecting code vulnerabilitiesthroughregular security audits, code reviews, and static analysis toolshelps prevent buffer overflow attacks. Developers should implementbounds checking,memory-safe programming languages, and input validationto mitigate risks.

Disabling cachingdoes not prevent buffer overflow attacks.

Server-side validationhelps with input security but does not directly address buffer overflows.

Intrusion protection softwaremay detect attacks but does not prevent vulnerabilities in code.

Having restoration policies in placeensures that in the event of data breaches, ransomware, or system failures, data can be quickly restored from secure backups. This minimizes downtime and data loss.

Using a variable network topologydoes not directly improve data security.

Changing passwords weeklymay lead to weaker security due to password fatigue.

WEPis obsolete and does not provide strong encryption for data protection.

Thenetstatcommand in Linux displays active network connections, listening ports, and network statistics. It is useful for diagnosing network issues and identifying open connections.

nslookupis for DNS queries.

digprovides DNS information, not network connection status.

ifconfigshows network interface details but does not list active connections.