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. Monitors network traffic to identify possible attacks






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






4. Twisted pair cable with speed capability of 10Mbps






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






6. 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






7. 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






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






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






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






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






12. Used to pass data from one VLAN to another






13. Session hijacking countermeasure






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






33. A packet filtering firewall works at this layer of the OSI model






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






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






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






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






38. Acts as an organizations internal phone system






39. A person or program masquerades as another by presenting false information to gain an illegitimate advantage






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






41. User / registered ports






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






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






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






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






46. A variation of a smurf attack using UDP






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






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






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






50. 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