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






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






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






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






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






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






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






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






9. Connects devices together to form a subnet - packet forwarding is based on MAC addresses - works at the data link layer of the OSI






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






11. Collection on honeypots






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






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






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






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






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






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






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






19. 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






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






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






22. 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






23. Monitors network traffic to identify possible attacks






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






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






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






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






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






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






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






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






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






34. Head of a packet contains...






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






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






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






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






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






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






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






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. 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






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






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






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






48. 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






49. Level 2 firewall often used to filter web traffic






50. 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