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






2. 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






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






4. A set of rules computers use to communicate with each other across a network






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






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






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






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






9. Used to pass data from one VLAN to another






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






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






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






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






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






15. Dynamic / private ports






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






17. Attempt to block service or reduce activity by overloading the victim machine with ping requests






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






19. 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






20. Bbenign activity reported as malicious






21. Known as thinnet - 10mbps - limited to 185 meters






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






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






24. 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






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






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






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






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






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






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






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






32. An attack where an attacker captures sensitive information and sends it again later in an attempt to replicate the transaction






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






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






35. Packet filtering - proxies - stateful inspection






36. 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






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






38. Malicious activity not reported or detected






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






40. IDS response method using logging and notification






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






43. 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






44. Monitors network traffic to identify possible attacks






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






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






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






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






49. Acts as an organizations internal phone system






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