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CISSP Telecom And 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. Device used within companies to provide multiple services to users throughout a building or facility. Example - dialing 9 to place outbound phone calls. Security concerns: default configurations and passwords - maintenance modems disabled - unused co






2. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.






3. Type of firewall that lies between the perimeter router and and LAN.






4. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.






5. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.






6. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.






7. Network where a dedicated virtual link is not set up - and packets can use many different dynamic paths to get to the same destination. This causes variable delays. Examples are frame relay and X.25






8. Type of wireless security standard that uses AES in CBC mode.






9. New variant to traditional email spam on VoIP networks.






10. Type of cable where STP and UTP (shielded and unshielded) cables are the most popular - cheapest - and easiest to work with. However - easiest to tap into - have cross talk issues - and are vulnerable to electromagnetic interference (EMI).






11. Protocol based on the SDLC protocol - except it is an open protocol - supports full-duplex connections - and provides a higher throughput. It also provides polling - which enables secondary units to communicate with primary units.






12. Dynamically builds ACL's to allow internal systems to communicate with external systems. Once the connection is finished - the ACL is removed from the list. 4th generation firewall.






13. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.






14. Both directions - only one application can send information at a time






15. Type of switch that uses tags that are assigned to each destination network. The network compares the tag with its tag information base - appends the appropriate tag - and forwards to the next switch. This increases the transmission speed - allows la






16. The well known values range from 0-1023. FTP runs on 20 and 21 - SMTP runs on 25 - TFTP runs on 69 - DNS runs on 53 - HTTP runs on 80 - HTTPS runs on 443 - SNMP runs on 161.






17. Type of network layout that is a large geographical region connecting more that one LAN.






18. Communication devices that determine synchronization scheme before data transmission.






19. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.






20. Malware attack that sends commands inside of an ICMP packet.






21. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.






22. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.






23. Protocol where all computers compete for the shard network cable - listen to learn when they can transmit data - susceptible to data collisions. Used by Ethernet.






24. Type of firewall that Inspects incoming/outgoing messages for malicious information. If approved - transfers an isolated copy from one network to another. 2nd generation firewall.






25. Type of network device that is the simplest type of connectivity because it only repeats and amplifies electric signals between cable segments. Works at the physical layer.






26. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.






27. Protocol that increases address size from 32 bits to 128 bits






28. If the packet header information is used to determine destinations rather than the routes configured into the router. Packets with this information should be dropped.






29. Uses tunneling protocols and encryption to provide a secure network connection between two network hosts. Private and secure connections can be made across an unsecured network. Example protocols are PPTP - L2TP - and IPSec.






30. Type of wireless authentication where the device does not need to provide a key for authentication. Usually - only the SSID is required and plaintext transmission occurs.






31. Set of rules that dictates how computer communicate over networks.






32. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.






33. Type of network device that divides networks into more controllable segments to ensure more efficient use of bandwidth. Works at the data link layer and understands MAC addresses - not IP addresses.






34. Protocol that translates a MAC address into an IP address.






35. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.






36. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.






37. Developed to replace the aging telephone and analog systems. BRI rate that uses two B channels (send/receive) - and one D channel (control information) - and PRI rate that uses up to 23 B channels. Supports voice - data - and video. Provides up to 1.






38. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.






39. Firewall that does not require a proxy for each service; does not provide detailed access control; but does provide for a wider range of protocols.






40. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.






41. OSI layer that provides physical connections for transmission and performs the electrical encoding of data. This layer transforms bits to electrical signals. Protocols at this level HSSI (High Speed Serial Interface) - X.21 - EIA/TIA 232 and 449.






42. In a token ring network - each computer is connected to this - which acts as a central hub.






43. OSI layer that provides routing - addressing - and fragmentation of packets. This layer can determine alternative routes to avoid network congestion. Protocols that use this layer are IP - ICMP - RIP - OSPF (Open Shortest Path First) - BGP (Border Ga






44. Identifys a WLAN. Can be used to segment environments into different WLANS.






45. OSI layer that provides end to end transmission between computer systems. Protocols that use this layer are TCP (Transmission Control Protocol) - UDP (User Datagram Protocol) - SPX (Sequenced Packet Exchange) - and SSL.






46. VPN protocol that works at the network layer - handles multiple connections - provides secure authentication and encryption. Tunnel mode option (payload and header encrypted) - or transport mode (only payload is encrypted).






47. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.






48. Type of network layout that separates and group computers logically.






49. As they travel down the OSI model on the source computer - each layer adds its own information so the corresponding layer on the destination machine knows how to process the data.






50. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.