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






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






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






4. Packet filtering - proxies - stateful inspection






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






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






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






8. 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






9. A complete transfer of all DNS zone information from one server to another






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






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






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






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






14. User / registered ports






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






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






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






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






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






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






21. Bbenign activity reported as malicious






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






23. Dynamic / private ports






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






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






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






28. Firewall with several NICs connected to different networks






29. 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






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






31. Monitors network traffic to identify possible attacks






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






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






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






35. Malicious activity not reported or detected






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






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






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






39. IP spoofing attack where the attacker can monitor packets and participate in bidirectional communication






40. Collection on honeypots






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






42. Malicious insiders - connections that bypass the firewall (i.e. IM) - encrypted traffic/tunneling - social engineering - physical access are missed by ___________






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






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






45. IDS response method using logging and notification






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






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






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






49. 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






50. Level 2 firewall often used to filter web traffic