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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. Protocol used to map an known IP address to its corresponding media access control (MAC) address






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






3. User / registered ports






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






5. 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






6. Acts as an organizations internal phone system






7. 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






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






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






10. A variation of a smurf attack using UDP






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






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






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






14. Firewall with several NICs connected to different networks






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






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






17. Head of a packet contains...






18. A method - used by switches and email servers - of delivering messages which are temporarily held by an intermediary before being sent to their final destination






19. Take control of a session between a server and client - the users gets kicked off the session while the attacker inserts himself into the session by sending a reset request to the client






20. Examines content passing through and makes a decision on the data based on a set of criteria - normal uses email filtering and web browsing






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






22. IP spoofing attack where the attacker can only send packets and has to guess about replies






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






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






25. Generate random TCP sequence numbers and encrypt traffic countermeasure what attacks






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






27. Twisted pair cable with speed capability of 1Gbps






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






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






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






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






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






33. A group of hosts on logical network segment that communicate as if they were attached to the same broadcast domain - regardless of their physical location






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






35. Bbenign activity reported as malicious






36. Level 2 firewall often used to filter web traffic






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






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






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






40. 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






41. Malicious activity not reported or detected






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






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






44. One process on every system - use local system resources - detect attacks that NIDS misses - examine data after decrypted - can be OS specific - more expensive






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






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






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






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






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






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







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