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. 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






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






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






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






5. Dynamic / private ports






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






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






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






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






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






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






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






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






14. Collection on honeypots






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






16. 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






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






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






19. 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






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






21. 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






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






23. Variation of the SYN flood where SYN packets are spoofed to have the same source and destination IP address and port






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






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






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






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






28. Head of a packet contains...






29. Monitors network traffic to identify possible attacks






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






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






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






33. Twisted pair cable with speed capability of 10Mbps






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






35. 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






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






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






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






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






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






41. Firewall with several NICs connected to different networks






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






43. Malicious activity not reported or detected






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






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






46. Used to pass data from one VLAN to another






47. Packet filtering - proxies - stateful inspection






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






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






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