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






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






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






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






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






6. A decoy system - intentionally left exposed to attract/distract attackers - logs and monitors attacker activities






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






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






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






10. An application layer gateway works at this layer of the OSI model






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






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






13. Firewall with several NICs connected to different networks






14. Acts as an organizations internal phone system






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






16. Head of a packet contains...






17. IDS response method using logging and notification






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






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






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






21. 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






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






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






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






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






26. Twisted pair cable with speed capability of 10Mbps






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






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






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






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






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






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






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






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






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






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






37. Bbenign activity reported as malicious






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






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






40. 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






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






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






43. Twisted pair cable with speed capability of 1Gbps






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






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






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






47. Used to pass data from one VLAN to another






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






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






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







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