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. Monitors network traffic to identify possible attacks






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






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






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






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






6. Malicious activity not reported or detected






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






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






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






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






11. 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






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






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






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






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






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






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






18. Unauthenticated Windows session where an attacker can gather list of users - groups - machines - shares - user and host SID






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






20. Collection on honeypots






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






22. Used by ISPs - single public network IP address is shared among many hosts on a private network - also known as PAT






23. Bbenign activity reported as malicious






24. Dynamic / private ports






25. 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






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






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






28. A locked down/hardened host on the public side of the firewall highly exposed to attacks (i.e. web server - email server)






29. Twisted pair cable with speed capability of 1Gbps






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






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






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






33. IDS response method using logging and notification






34. 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






35. Allows all traffic except traffic that is specifically denied - also known as permissive access






36. Cable with copper core - has no physical transmission security and is easy to tap - 10mbps - maximum length 500 meters






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






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






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






40. A level 3 firewall that remembers / tracks network connections - maintains a state table - distinguish which side of a firewall a connection was initiated - higher security






41. Cable designed for transmission at higher speeds (100Mbps - 2Gbps) and longer distances (2km) - expensive -eliminates signal tapping






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






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






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






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






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






47. 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






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






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






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