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






2. Well known ports - allow administrative access - used for network services - considered only ports allowed to transmit traffic thru a firewall






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






4. A variation of a smurf attack using UDP






5. Used to pass data from one VLAN to another






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






7. Twisted pair cable with speed capability of 1Gbps






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






9. Level 2 firewall often used to filter web traffic






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






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






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






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






14. Monitors network traffic to identify possible attacks






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






16. Packet filtering - proxies - stateful inspection






17. IDS response method using logging and notification






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






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






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






21. 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






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






23. User / registered ports






24. Collection on honeypots






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






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






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






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






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






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






31. 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






32. Capture and analyze network traffic - also known as packet analyzer - sniffer - network analyzer






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






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






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






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






37. 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






38. 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






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






40. Malicious activity not reported or detected






41. Twisted pair cable with speed capability of 10Mbps






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






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






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






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






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






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






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






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






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