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






3. Twisted pair cable with speed capability of 10Mbps






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






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






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






7. 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






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






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






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






11. Head of a packet contains...






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






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






14. Twisted pair cable with speed capability of 1Gbps






15. Firewall with several NICs connected to different networks






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






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






18. 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






19. 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






20. Collection on honeypots






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






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






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






24. 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






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






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






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






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






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






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






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






33. Packets with a forged source IP address - purpose to conceal the identity of the sender or impersonate another computing system






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






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






36. Monitors network traffic to identify possible attacks






37. Acts as an organizations internal phone system






38. Level 2 firewall often used to filter web traffic






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






40. Dynamic / private ports






41. 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






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






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






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






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






46. When a hacker takes over a TCP session between two machines - also known as session hijacking - foiled by the use of encrypted sessions






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






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






49. IDS response method using logging and notification






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







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