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CISSP Telecom And Network Security

  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.

2. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.

3. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.

4. Type of topology that Uses linear single cable for all computers attached. All traffic travels full cable and can be viewed by all other computers.

5. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.

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

7. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.

8. Spam over IM

9. Protocol that is best-effort - connectionless - and does not sent acknowledgements.

10. This network technology determines which system will send data based on which one has the token.

11. Protocol that transfers data in fixed cells (53 bytes) - is a WAN technology - and transmits data at very high rates. Supports voice - data - and video applications.

12. Both directions - both applications can send information at a time. Session Layer Communication Modes

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

14. 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.

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

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

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

18. 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.

19. Wireless communication that splits total amount of bandwidth into smaller sub-channels. Send and receiver work in one of the channels for a period of time - and then move into a different channel. It uses a portion of the bandwidth - throughput of 1-

20. A simplified version of X.25 - without the error checking that was done on the network. It handles error checking at the end node - which helps improve speed dramatically.

21. 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.

22. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.

23. OSI layer that formats data into a standardized format and deals with the syntax of data - not the meaning. Example formats are ASCII - GIF - JPG - MPEG.

24. 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.

25. Most commonly used LAN implementation today. Considered a "chatty" protocol because it allows all systems to hear each other's broadcasts. Has many collisions because all systems share the same medium. Can operate at 10 to 1000 Mbps.

26. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.

27. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.

28. Strengths of a type of firewall: Better security than packet filtering. Looks at all info in the packet - up to the application layer. Breaks the connection between trusted and untrusted systems. Weaknesses include limited number of applications supp

29. In the OSI layer 5 - these are the types of what?

30. Wireless communication that applies sub-bits to a message (chips) and the receiver uses the chips to re-assemble the message based on the chipping code. It uses all available bandwidth - high throughput of 11Mbps.

31. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.

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

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

34. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.

35. Network segment name for a DMZ created by two physical firewalls.

36. 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.

37. Type of firewall that looks at header information to make decisions on whether a packet is deemed acceptable. This type does not look as deep within the packet as an application level proxy - runs at the session layer.

38. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.

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

40. Transmits high speed bandwidth over phone lines. Provides data rates up to 52 Mpbs using line of 1000 feet or less. Must be within 2.5 miles of a central office.

41. Most expensive type of WAN connection because the fee is based on distance between the two points rather than the amount of bandwidth used. Examples - T1 and T3.

42. 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.

43. 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

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

45. Type of topology that uses a bus that does not have a one linear cable - but instead uses branches of cables. Commonly used in Ethernet.

46. Network where a virtual connection that acts like a dedicated link between two systems is set up. Traffic travels in a predictable and constant manner. Example - telephone.

47. OSI layer that sets up - maintains - and breaks down the dialog (session) between two applications. Controls dialog organization and synchronization. Protocols that work at this layer are NFS (Network File System) - SQL - NetBIOS - RPC.

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

49. Standard that outlines wireless personal area network (WPAN) technologies.

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