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






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






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






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






5. Twisted pair cable with speed capability of 10Mbps






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






7. Ping flooding - ping of death - smurf - fraggle - SYN flood - land - teardrop - email flood






8. A variation of a smurf attack using UDP






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






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






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






12. 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






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






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






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






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






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






18. Connects devices together to form a subnet - packet forwarding is based on MAC addresses - works at the data link layer of the OSI






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






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






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






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






23. 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






24. Monitors network traffic to identify possible attacks






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






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






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






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






29. Firewall with several NICs connected to different networks






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






31. Session hijacking countermeasure






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






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






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






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






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






37. Acts as an organizations internal phone system






38. Packet filtering - proxies - stateful inspection






39. IDS response method using logging and notification






40. 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






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






42. User / registered ports






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






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






45. 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






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






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






49. 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






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