ISC2 CC Domain 4: Network Security Exam Study by Edward Henriquez

Domain 4: Network Security (20 Questions) What is the purpose of a firewall? A. Detect malware B. Filter traffic between networks C. Encrypt sensitive information D. Manage network bandwidth Answer: B What type of attack floods a network to make resources unavailable? A. Man-in-the-middle B. Phishing C. Denial of Service (DoS) D. Replay Answer: C Which protocol encrypts data between a browser and server? A. FTP B. HTTP C. HTTPS D. Telnet Answer: C What is the primary function of a VPN? A. Secure email communications B. Provide an encrypted remote-access tunnel C. Monitor network activity D. Block unauthorized users Answer: B What is the goal of network segmentation? A. Reduce network congestion B. Isolate sensitive data/systems C. Increase encryption efficiency D. Enhance speed Answer: B What device connects network segments? A. Switch B. Router C. Firewall D. Load Balancer Answer: B Which protocol resolves domain names to IPs? A. HTTP B. DNS C. SMTP D. SNMP Answer: B What does an IDS do? A. Block unauthorized traffic B. Detect/alert suspicious activity C. Encrypt communications D. Filter email spam Answer: B Which prevents ARP spoofing? A. Dynamic IP allocation B. Static ARP tables C. NAT D. Gateway reconfiguration Answer: B What is a key benefit of a proxy? A. Hide internal IPs from external users B. Block malicious traffic at the packet level C. Encrypt all network traffic D. Prevent social media access Answer: A What is port scanning? A. Identify open ports on a device B. Encrypt incoming traffic C. Test firewall configurations D. Block unauthorized IPs Answer: A What is the purpose of tools like Wireshark? A. Test software vulnerabilities B. Analyze/capture network traffic C. Encrypt data in transit D. Configure firewalls Answer: B Which control allows traffic based on rules? A. Intrusion Prevention System (IPS) B. Firewall C. Network Access Control (NAC) D. Honeypot Answer: B What is a key advantage of a honeypot? A. Prevent phishing B. Attract attackers to identify malicious activity C. Improve encryption D. Block brute-force attacks Answer: B What is the role of DNSSEC? A. Secure email B. Prevent DNS spoofing, ensure integrity C. Encrypt DNS queries D. Improve bandwidth Answer: B Which protocol provides secure file transfer? A. FTP B. SFTP C. Telnet D. HTTP Answer: B What type of attack alters communications? A. Man-in-the-middle B. DoS C. Social engineering D. Replay Answer: A What is the function of NAC? A. Encrypt sensitive traffic B. Enforce device security policies C. Prevent malware D. Monitor unauthorized logins Answer: B Which wireless security protocol is most secure? A. WEP B. WPA C. WPA2 D. WPA3 Answer: D What is the purpose of VLANs? A. Increase speed B. Segment/isolate traffic for security C. Encrypt all traffic D. Prevent malware Answer: B Patreon Support: https://www.patreon.com/DecodedPodcast