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






2. IDS that relies on usage patterns and baseline operation - can ID new vulnerability - high rate of false alarms






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






4. 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






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






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






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






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






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






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






11. 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






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






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






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






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






16. Malicious activity not reported or detected






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






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






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






20. 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






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






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






23. 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






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






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






26. Twisted pair cable with speed capability of 1Gbps






27. Acts as an organizations internal phone system






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






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






30. IDS response method using logging and notification






31. One device per network segment - does not use local system resources - can't examine encrypted traffic - OS independent - less expensive






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






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






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






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






36. 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






37. A variation of a smurf attack using UDP






38. Session hijacking countermeasure






39. DMZ implementation using two firewalls with different rule sets for the DMZ and intranet






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






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






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






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






44. User / registered ports






45. Twisted pair cable with speed capability of 10Mbps






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






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






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






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






50. Used to pass data from one VLAN to another