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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. Head of a packet contains...






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






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






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






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






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






7. Dynamic / private ports






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






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






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






11. Firewall with several NICs connected to different networks






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






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






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






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






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






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






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






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






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






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






23. 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






24. Twisted pair cable with speed capability of 10Mbps






25. Level 2 firewall often used to filter web traffic






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






27. Malicious activity not reported or detected






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






29. Collection on honeypots






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






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






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






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






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






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






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






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






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. A logical group of computers connected via a switch/hub that share the same network prefix in their IP address






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






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






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






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






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






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






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






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






48. Twisted pair cable with speed capability of 1Gbps






49. Packet filtering - proxies - stateful inspection






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







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