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






2. Twisted pair cable with speed capability of 10Mbps






3. Dynamic / private ports






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






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






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






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






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






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






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






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






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






13. Twisted pair cable with speed capability of 1Gbps






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






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






16. A firewall that checks all layers of a packet including content - verifying an expected response to a current communication session - also call a deep packet inspection






17. 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






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






19. Acts as an organizations internal phone system






20. Collection on honeypots






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






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






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






24. 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






25. Used to pass data from one VLAN to another






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






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






28. Head of a packet contains...






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






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






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






33. A sniffer mode used to capture traffic addressed to/from another machine on the network






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






35. IDS response method using logging and notification






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






37. 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






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






39. Session hijacking countermeasure






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






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






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






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






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






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






46. 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






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






48. Malicious activity not reported or detected






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






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