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






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






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






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






5. Evolved from IDS - monitors network traffic - detects and responds to attack on network






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






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






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






9. Bbenign activity reported as malicious






10. 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






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






12. Head of a packet contains...






13. Session hijacking countermeasure






14. Monitors network traffic to identify possible attacks






15. 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






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






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






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






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






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






21. Firewall with several NICs connected to different networks






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






23. IDS response method using logging and notification






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






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






26. Forging an IP address with the address of a trusted host






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






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






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






30. 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






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






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






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






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






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






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






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






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






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






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






42. 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






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






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






45. Twisted pair cable with speed capability of 10Mbps






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






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






48. Packet filtering - proxies - stateful inspection






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






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