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






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






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






4. A variation of a smurf attack using UDP






5. Twisted pair cable with speed capability of 1Gbps






6. Man in the middle attack where the content of an intercepted message is altered before it is sent on






7. 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






8. Packet filtering - proxies - stateful inspection






9. An attack where an attacker captures sensitive information and sends it again later in an attempt to replicate the transaction






10. Crashing a computer by sending oversized packets (over 64 bytes) that it doesn't know how to handle






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






12. Two authoritative sources for your domain namespace with differing contents depending on whether the query is internal or external






13. Monitors network traffic to identify possible attacks






14. Attempt to block service or reduce activity by overloading the victim machine with ping requests






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






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






17. User / registered ports






18. Cable used most in networks - maximum speed 1Gbps - maximum length 100 meters - susceptible to tap






19. Evolved from IDS - monitors network traffic - detects and responds to attack on network






20. A pool of public IP addresses is shared by a collection of private IP addresses






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






22. Session hijacking countermeasure






23. Used to pass data from one VLAN to another






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






25. A person or program masquerades as another by presenting false information to gain an illegitimate advantage






26. Head of a packet contains...






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






28. Firewall with several NICs connected to different networks






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






30. Known as thicknet - 10mbps - limited to 500 meters






31. Multiple network defense components are placed throughout the organizations assets and the network is properly segmented






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






33. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address






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






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






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






37. A set of rules computers use to communicate with each other across a network






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






39. A packet filtering firewall works at this layer of the OSI model






40. Firewall that communicates directly with a perimeter router and the internal network - 2 NICs - screens internal traffic






41. Connects devices together to form a subnet - broadcasts incoming packets to all devices






42. Malicious activity not reported or detected






43. Level 2 firewall often used to filter web traffic






44. A logical division of a computer network - in which all nodes can reach each other by broadcast at the data link layer - equivalent to a VLAN






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






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






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






48. Creating a illegitimate website with the intention of convincing victims that they are visiting a legitimate site - typically to collect confidential information






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






50. 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