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. 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






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






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






5. User / registered ports






6. Used to pass data from one VLAN to another






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






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






9. Acts as an organizations internal phone system






10. Bbenign activity reported as malicious






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






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






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






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






15. A variation of a smurf attack using UDP






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






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






18. Twisted pair cable with speed capability of 1Gbps






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






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






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






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






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






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






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






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






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






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






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






30. IDS response method using logging and notification






31. Packet filtering - proxies - stateful inspection






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






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






34. Connects two or more subnets - determines the best path to forward packets based on packet header and forwarding table information






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






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






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






38. Firewall with several NICs connected to different networks






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






40. Head of a packet contains...






41. Collection on honeypots






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






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






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






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






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






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






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






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






50. 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