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CISSP Telecom And Network Security
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Instructions:
Answer 50 questions in 15 minutes.
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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. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Star Topology
IPSec
T3
Isochronous Communication Processes
2. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Mesh Topology
SPIM
Synchronous Communication
Blue Boxing
3. This network technology determines which system will send data based on which one has the token.
Token Passing
ARP Poisoning
Bluejacking
Commonly used in Ethernet.
4. 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.
Application Proxy vs. Circuit Level
Reverse Address Resolution Protocol (RARP )
FDDI-2
Asynchronous Transfer Mode (ATM)
5. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Stateful Firewall
Network Address Translator (NAT)
Iterated Association
Commonly used in FDDI.
6. OSI layer that prepares data for the network medium by framing it into LAN/WAN frames. Defines how the physical layer transmits the network packets. Protocols at this layer ARP (Address Resolution Protocol) - RARP (Reverse Address Resolution Protocol
802.11b
OSI Layer 2: Data Link Layer
TCP
Password Authentication Protocol (PAP)
7. Protocol for allowing multi-cast (one to many) communication
IPv6
SOCKS Firewall
802.11i
IGMP
8. 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.
Iterated Association
Layers in the OSI Model
Password Authentication Protocol (PAP)
Integrated Services Digital Network (ISDN)
9. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
Attenuation
Coaxial Cables
DNS (Domain Name System)
TCP
10. 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).
802.11a
IPSec
Isochronous Communication Processes
Full-Duplex
11. Older LAN implementation that uses a token-passing technology. Can send a beacon frame to indicate that a certain computer is failing and its neighbors should reconfigure and work around the detected fault.
TCP
OSI Layer 4: Transport Layer
Bus Topology
Token Ring (802.5)
12. Strengths of a type of Stateful Firewall: High security - better performance than an application firewall. Weaknesses include more complex - ___________ - if rebooted all information is lost.
DOS attacks from flooding
FDDI-2
T3
VLAN
13. 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.
OSI Data encapsulation
Channel Service Unit/Data Service Unit (CSU/DSU)
Screened Sub-Net
Temporal Key Integrity Protocol (TKIP)
14. Type of backbone network that joins together LAN to other LANs and WANs to LANs - etc. Typically known as Synchronous Optical Networks (SONETS) or FDDI rings.
LLC (Logical Link Control - 802.2)
Extensible Authentication Protocol (EAP)
Dedicated Links
Metropolitan Area Network (MAN)
15. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Dual-Homed Firewall
Mesh Topology
Integrated Services Digital Network (ISDN)
Layers in the TCP/IP Model
16. Wireless communication that distributes individual signals across the allocated frequencies.
Repeaters
Network Address Translator (NAT)
High Level Data Link Control (HLDC)
Spread Spectrum
17. 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.
Circuit Switching
Carrier sense multiple access with collision detection (CSMA/CD)
Dedicated Links
Blue Boxing
18. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Point-To-Point (PPP)
Token Passing
Packet Filtering Firewall
OSI Layer 6: Presentation
19. Used when a LAN device needs to communicate with WAN devices over telephone lines. Ensures the necessary electrical signaling and format are used. Interfaces with Data Terminal Equipment (DTE) and Data Circuit-Terminal Equipment (DCE).
Wired Equivalent Privacy (WEP)
Point-To-Point (PPP)
Twisted Pair Cables
Channel Service Unit/Data Service Unit (CSU/DSU)
20. A WAN protocol that works at the data link layer and performs packet switching. Economical choice because the fee is based on bandwidth usage rather than a dedicated pipeline.
CBC-MAC Protocol (CCMP)
Frame Relay
Challenge Handshake Authentication Protocol (CHAP)
Shared Key Authentication (SKA)
21. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Challenge Handshake Authentication Protocol (CHAP)
Multi-protocol Label Switching
Synchronous Communication
Application Proxy vs. Circuit Level
22. Type of firewall that uses a proxy for each service and can understand and make decisions on the protocols used and the commands within those protocols - runs at the application layer.
Challenge Handshake Authentication Protocol (CHAP)
Point-To-Point (PPP)
Application Proxy Firewall
Ethernet (802.3)
23. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Commonly used in logical bus - Ethernet - token ring.
Token Passing
802.15
Switch
24. Wireless standard that will improve security of wireless communication
Loki Attack
802.11i
Commonly used in FDDI.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
25. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
Trunk Lines
OSI Layer 2: Data Link Layer
T1
Temporal Key Integrity Protocol (TKIP)
26. Type of network device that links 2 or more network segments - where each segment can function as an independent network. Works at the network layer - works with IP addresses - and has more network knowledge than the other hardware.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Router
Iterated Association
VLAN
27. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Bluejacking
Simplex: One direction.
Application Proxy Firewall
802.16
28. VPN protocol that can run in other networks (frame relay - X.25 - ATM). Does not provide encryption - lacks the security to be called a true "VPN" solution.
Coaxial Cables
ARP Poisoning
Layer 2 Tunneling Protocol (L2TP)
DNS (Domain Name System)
29. Standard that outlines wireless personal area network (WPAN) technologies.
FDDI-2
802.15
OSI Layer 5: Session Layer
Service Set ID (SSID)
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.
Multi-protocol Label Switching
Synchronous Optical Networks (SONETS)
OSI Layer 7: Application
Direct Sequence Spread Spectrum (DSSS)
31. Type of network layout that separates and group computers logically.
DOS attacks from flooding
Mesh Topology
Fiber-optic Cables
VLAN
32. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
ARP (Address Resolution Protocol)
Screened Host Firewall
IGMP
Session Initiation Protocol (SIP)
33. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Subnetting
Extensible Authentication Protocol (EAP)
Shared Key Authentication (SKA)
Layers in the OSI Model
34. 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.
Open System Authentication (OSA)
Commonly used in Ethernet.
Dual-Homed Firewall
Token Passing
35. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
T1
Commonly used in FDDI.
Application Proxy vs. Circuit Level
802.11b
36. Both directions - only one application can send information at a time
Half-Duplex
Commonly used in Ethernet.
Carrier sense multiple access with collision detection (CSMA/CD)
Wireless Application Protocol (WAP)
37. 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.
High Level Data Link Control (HLDC)
802.11a
Commonly used in Ethernet.
X.25
38. 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.
Attenuation
OSI Layer 7: Application
Circuit Switching
Dual-Homed Firewall
39. 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.
Proxy Firewall
Dynamic Packet Filtering
Ethernet (802.3)
Circuit Level Proxy Firewall
40. 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.
Definition of Protocol
Trunk Lines
Open System Authentication (OSA)
OSI Layer 7: Application
41. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Bus Topology
Service Set ID (SSID)
Layers in the TCP/IP Model
Crosstalk
42. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
TCP
Session Initiation Protocol (SIP)
Dynamic Packet Filtering
Definition of Protocol
43. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
802.11a
ThickNet - aka 10base5.
Dual-Homed Firewall
Metropolitan Area Network (MAN)
44. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Network Address Translator (NAT)
Coaxial Cables
Noise
Shared Key Authentication (SKA)
45. New variant to traditional email spam on VoIP networks.
Spam over Internet Telephony (SPIT)
T1
Virtual Private Network (VPN)
Switched Virtual Circuit (SVC)
46. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Proxy Firewall
IGMP
Iterated Association
Ethernet (802.3)
47. Network cabling that is placed in these types of areas must meet a specific fire rating. These cables typically have a jacked cover made of fluoropolymers.
Challenge Handshake Authentication Protocol (CHAP)
Digital Subscriber Line (DSL)
Plenum-rated Cables
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
48. 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.
Tree Topology
OSI Layer 1: Physical
Multistation Access Unit (MAU)
ARP Poisoning
49. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Frequency Hopping Spread Spectrum (FHSS)
UDP
Simplex: One direction.
OSI Layer 6: Presentation
50. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Classless inter-domain routing (CIDR)
Ethernet (802.3)
TCP
Source Routing
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