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Test your basic knowledge |
CISSP Telecom And Network Security
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Subjects
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certifications
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it-skills
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cissp
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. Type of firewall that lies between the perimeter router and and LAN.
Wide Area Network (WAN)
Commonly used in FDDI.
SOCKS Firewall
Screened Host Firewall
2. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
VoIP
Bluejacking
OSI Layer 6: Presentation
Application Proxy vs. Circuit Level
3. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Distributed Environment Challenge
UDP
Simplex: One direction.
Frequency Hopping Spread Spectrum (FHSS)
4. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Channel Service Unit/Data Service Unit (CSU/DSU)
Iterated Association
IPv6
Tree Topology
5. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
High Level Data Link Control (HLDC)
SOCKS Firewall
ThickNet - aka 10base5.
Bus Topology
6. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Shared Key Authentication (SKA)
Trunk Lines
IPSec
Bus Topology
7. 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.
Synchronous Data Link Control (SDLC)
OSI Layer 2: Data Link Layer
OSI Layer 7: Application
Plenum-rated Cables
8. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
802.11
Network Address Translator (NAT)
T3
Bridge
9. 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.
OSI Layer 6: Presentation
Channel Service Unit/Data Service Unit (CSU/DSU)
Application Proxy Firewall
Synchronous Data Link Control (SDLC)
10. This network technology determines which system will send data based on which one has the token.
Commonly used in Internet.
Token Passing
High Level Data Link Control (HLDC)
Shared Key Authentication (SKA)
11. 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.
Token Ring (802.5)
Classless inter-domain routing (CIDR)
OSI Layer 4: Transport Layer
Frame Relay
12. 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.
Remote Access Servers
Spread Spectrum
Token Passing
Layer 2 Tunneling Protocol (L2TP)
13. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Frequency Hopping Spread Spectrum (FHSS)
Blue Boxing
ThinNet - aka 10base2
Coaxial Cables
14. Type of wireless security standard that uses AES in CBC mode.
T1
CBC-MAC Protocol (CCMP)
Digital Subscriber Line (DSL)
Layers in the TCP/IP Model
15. 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.
TCP
Multi-protocol Label Switching
Frame Relay
Spread Spectrum
16. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Noise
Synchronous Optical Networks (SONETS)
Layer 2 Tunneling Protocol (L2TP)
OSI Layer 6: Presentation
17. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
10baseT
Commonly used in Internet.
Screened Sub-Net
Dual-Homed Firewall
18. 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
Bridge
Wide Area Network (WAN)
Loki Attack
Private Branch Exchange (PBX)
19. 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.
Token Ring (802.5)
Coaxial Cables
Commonly used in Ethernet.
Screened Host Firewall
20. 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.
Layers in the TCP/IP Model
CBC-MAC Protocol (CCMP)
Ethernet (802.3)
Distributed Environment Challenge
21. 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-
ThinNet - aka 10base2
Committed Information Rate (CIR)
Frequency Hopping Spread Spectrum (FHSS)
Challenge Handshake Authentication Protocol (CHAP)
22. 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).
802.11b
OSI Layer 4: Transport Layer
Frequency Hopping Spread Spectrum (FHSS)
IPSec
23. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Synchronous Data Link Control (SDLC)
802.11a
X.25
Serial Line Internet Protocol (SLIP)
24. Security wireless standard that enables data transfers to be encrypted. Static encryption keys among clients - short 40 bit keys - RC4 encryption - ineffective use of 24 bit IV's - and no packet integrity.
Bus Topology
Integrated Services Digital Network (ISDN)
Wired Equivalent Privacy (WEP)
ThinNet - aka 10base2
25. 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.
Token Ring (802.5)
Packet Filtering Firewall
Port Numbers
VoIP
26. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
SPIM
Bastion Host
IGMP
Spread Spectrum
27. This is a standard for fiber-optic cabling and uses self-healing network rings. This standard describes the interfaces that can be used over fiber lines and the signaling that can be employed. Works at the physical layer of the OSI model.
ARP (Address Resolution Protocol)
Synchronous Optical Networks (SONETS)
Fiber-optic Cables
ICMP (Internet Control Message Protocol)
28. 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.
Direct Sequence Spread Spectrum (DSSS)
Circuit Level Proxy Firewall
Point-To-Point Tunneling Protocol (PPTP)
LLC (Logical Link Control - 802.2)
29. Type of cabling problem signals from one wire crossing over to another wire.
Crosstalk
Open Relay
Bastion Host
TCP
30. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
SPIM
Extensible Authentication Protocol (EAP)
TCP
Challenge Handshake Authentication Protocol (CHAP)
31. 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.
Port Numbers
Circuit Switching
Open Relay
OSI Data encapsulation
32. In a token ring network - each computer is connected to this - which acts as a central hub.
Multistation Access Unit (MAU)
802.11i
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
UDP
33. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
802.11b
Dual-Homed Firewall
Bus Topology
Multistation Access Unit (MAU)
34. 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.
ThinNet - aka 10base2
Frame Relay
OSI Layer 4: Transport Layer
Reverse Address Resolution Protocol (RARP )
35. 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.
Fiber Distributed Data Interface (FDDI)
Synchronous Communication
Extensible Authentication Protocol (EAP)
Direct Sequence Spread Spectrum (DSSS)
36. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Ethernet (802.3)
10baseT
Committed Information Rate (CIR)
Commonly used in FDDI.
37. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
IPv6
Cable Modem
Temporal Key Integrity Protocol (TKIP)
Coaxial Cables
38. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Packet Filtering Firewall
Application Proxy Firewall
SPIM
DNS (Domain Name System)
39. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
10baseT
Token Passing
OSI Layer 5: Session Layer
ThickNet - aka 10base5.
40. Problems: Central device is a single point of failure.
Kernel Proxy Firewall
Bastion Host
Star Topology
Port Numbers
41. 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.
Commonly used in FDDI.
Iterated Association
Application Proxy Firewall
Extensible Authentication Protocol (EAP)
42. 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.
Commonly used in FDDI.
Ethernet (802.3)
DOS attacks from flooding
OSI Layer 6: Presentation
43. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Commonly used in FDDI.
Point-To-Point (PPP)
Temporal Key Integrity Protocol (TKIP)
OSI Layer 1: Physical
44. 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.
Spam over Internet Telephony (SPIT)
Commonly used in Ethernet.
Token Ring (802.5)
Router
45. 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)
Circuit Switching
Committed Information Rate (CIR)
Screened Sub-Net
46. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
FDDI-2
VLAN
Ring Topology
Subnetting
47. 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.
TCP
Carrier sense multiple access with collision detection (CSMA/CD)
802.11b
CBC-MAC Protocol (CCMP)
48. Problems: Requires more expense in cabling and extra effort to track down cable faults.
ARP Poisoning
802.15
Mesh Topology
Point-To-Point (PPP)
49. 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.
Spam over Internet Telephony (SPIT)
OSI Layer 3: Network Layer
Application Proxy Firewall
Dedicated Links
50. New variant to traditional email spam on VoIP networks.
Tree Topology
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
OSI Layer 2: Data Link Layer
Spam over Internet Telephony (SPIT)