Test your basic knowledge |

Comptia Security +: Network Security

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. IDS response method using logging and notification






2. IPS response method - terminate process/session - block/reject and redirect network traffic






3. A variation of a smurf attack using UDP






4. Firewall that intercepts and inspects messages before delivering them - placed between trusted and untrusted networks - degrade network traffic - also know as application gateway






5. An attacker redirects traffic by falsifying the IP address requested by ARP request






6. A logical connection point allowing computers and software to communicate and exchange data






7. Examines a entire packet and determines action based on a complex set of rules






8. A physical or logical subnetwork that houses systems accessible to a larger untrusted network - usually the Internet - also known as DMZ






9. A feature of firewalls / routers that disguise the IP address of internal systems allowing connection to the Internet using one public address






10. Known as thinnet - 10mbps - limited to 185 meters






11. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system






12. Type of IP addresses not routed on the internet: 10.x.x.x - 172.16.x.x - 192.168.x.x






13. Amplifies the signal of incoming packets before broadcasting them to the network






14. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer






15. Head of a packet contains...






16. A decoy system - intentionally left exposed to attract/distract attackers - logs and monitors attacker activities






17. Collection on honeypots






18. An attacker redirects valid request to malicious sites by feeding a DNS server altered records which are retained in its cache






19. Network configuration that permits selected outsiders access internal information systems






20. Man in the middle attack where the attacker captures the traffic and sends it to the original recipient without altering the intercepted data






21. Web servers - FTP servers - DNS servers - mail servers should be located on the _____________






22. Promiscuous NIC to sniff passing traffic - admin NIC to send alerts to centralized management system






23. Unauthenticated connections - creating the potential for a successful connection as an anonymous user






24. Twisted pair cable with speed capability of 1Gbps






25. Malicious activity not reported or detected






26. Forging an IP address with the address of a trusted host






27. Blocks all traffic from passing through the firewall except for traffic that is explicitly allowed - also known as restrictive access - best practice






28. IP - email - website - DNS - and ARP






29. A firewall that checks all layers of a packet including content - verifying an expected response to a current communication session - also call a deep packet inspection






30. Variation of the SYN flood where SYN packets are spoofed to have the same source and destination IP address and port






31. A server that sits between an intranet and it's Internet connection - masking all IP addresses






32. Level 1 firewall that looks at the head of a packet - (not content) - operates rapidly - application independent - either allow or deny packets






33. Firewall with two NICs - one internal and one external facing - NAT is often used with this firewall






34. Most common DMZ implementation using three firewall interfaces (internet - intranet - DMZ)






35. A DoS attack that subverts the normal "three way handshake" of TCP/IP by sending SYN packets - but no corresponding ACK packets






36. IDS that relies on the identification of known attack signatures






37. Firewall with several NICs connected to different networks






38. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions






39. A ping message is broadcast to an entire network with a spoofed source IP addess of the victim computer - flooding the victim computer with responses during this attack






40. User / registered ports






41. An application layer gateway works at this layer of the OSI model






42. A flaw in TCP/IP to verify that a packet really comes from the addess indicated in the IP header leads to this attack






43. Bastion host - dual homed firewall - multi homed firewall - screened host - screened subnet






44. An attack where fragmented UDP packets with odd offset values are sent to the victim - when the OS attempts to rebuild the fragments they overwrite each other and cause confusion






45. One private IP address is mapped to one public IP address






46. Packet filtering - proxies - stateful inspection






47. Attack where an attacker intercepts traffic and tricks parties at either end into believing they are communicating with each other






48. A sniffer mode used to capture traffic addressed to/from another machine on the network






49. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall






50. Seeks to reduce the probability and/or impact of a specific risk below an acceptable threshold