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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 cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Packet Filtering Firewall
Classless inter-domain routing (CIDR)
Definition of Protocol
Attenuation
2. 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.
Open System Authentication (OSA)
Fiber Distributed Data Interface (FDDI)
Spam over Internet Telephony (SPIT)
Ethernet (802.3)
3. Type of wireless security standard that uses AES in CBC mode.
802.11i
Layer 2 Tunneling Protocol (L2TP)
Simplex: One direction.
CBC-MAC Protocol (CCMP)
4. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Network Address Translator (NAT)
SPIM
Synchronous Data Link Control (SDLC)
ThinNet - aka 10base2
5. Type of firewall that is also know as a screening router and is accomplished by ACL's (Lines of text called rules). Traffic can be filtered by address - ports - and protocol types. 1st generation firewall - runs at the network layer.
Switched Virtual Circuit (SVC)
Channel Service Unit/Data Service Unit (CSU/DSU)
Packet Filtering Firewall
Subnetting
6. Type of network device that allows different network segments and/or systems to communicate. When communication takes place - a dedicated connection is set up - so collision and broadcast data is not available to other devices. Combined repeater (hub
Proxy Firewall Strengths
Switch
DNS (Domain Name System)
IGMP
7. Type of cabling problem signals from one wire crossing over to another wire.
Isochronous Communication Processes
Commonly used in Internet.
Crosstalk
Twisted Pair Cables
8. 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).
ICMP (Internet Control Message Protocol)
Point-To-Point Tunneling Protocol (PPTP)
ThinNet - aka 10base2
Channel Service Unit/Data Service Unit (CSU/DSU)
9. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
Screened Host Firewall
SOCKS Firewall
802.11a
OSI Layer 4: Transport Layer
10. 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.
High Level Data Link Control (HLDC)
Dedicated Links
Point-To-Point Tunneling Protocol (PPTP)
Layer 2 Tunneling Protocol (L2TP)
11. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
Serial Line Internet Protocol (SLIP)
IGMP
Half-Duplex
Pulse Code Modulation (PCM)
12. 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
UDP
DNS (Domain Name System)
Private Branch Exchange (PBX)
Open Relay
13. More complexity and drastically increases the difficultly of access control. Many different devices - services - and users make it difficult to know which entities to trust and to what degree.
OSI Layer 4: Transport Layer
ARP Poisoning
Distributed Environment Challenge
Synchronous Data Link Control (SDLC)
14. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Committed Information Rate (CIR)
Frame Relay
Multi-protocol Label Switching
Mesh Topology
15. 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.
Crosstalk
Circuit Switching
Frame Relay
Iterated Association
16. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
FDDI-2
Spread Spectrum
X.25
Blue Boxing
17. 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.
Kernel Proxy Firewall
Network Address Translator (NAT)
Router
High Level Data Link Control (HLDC)
18. 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
Packet Switching
Proxy Firewall Strengths
Frequency Hopping Spread Spectrum (FHSS)
Synchronous Optical Networks (SONETS)
19. 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.
Coaxial Cables
Tree Topology
Proxy Firewall Strengths
Committed Information Rate (CIR)
20. In the OSI layer 5 - these are the types of what?
Full-Duplex
Simplex: One direction.
Token Ring (802.5)
Digital Subscriber Line (DSL)
21. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Reverse Address Resolution Protocol (RARP )
Coaxial Cables
Packet Filtering Firewall
OSI Layer 5: Session Layer
22. SMTP server that is configured for sending email from any source to and destination.
Open Relay
Twisted Pair Cables
Wide Area Network (WAN)
Committed Information Rate (CIR)
23. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Noise
OSI Layer 6: Presentation
Metropolitan Area Network (MAN)
Synchronous Optical Networks (SONETS)
24. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Layers in the TCP/IP Model
Carrier sense multiple access with collision detection (CSMA/CD)
Mesh Topology
Packet Switching
25. In a token ring network - each computer is connected to this - which acts as a central hub.
Digital Subscriber Line (DSL)
Classless inter-domain routing (CIDR)
Multistation Access Unit (MAU)
802.11b
26. Type of LAN and MAN technology - usually used for backbones - that uses token-passing technology and has redundant rings in case the primary ring goes down.
Fiber Distributed Data Interface (FDDI)
OSI Layer 2: Data Link Layer
Multilevel Switching
Wireless Application Protocol (WAP)
27. Malware attack that sends commands inside of an ICMP packet.
Repeaters
Loki Attack
Proxy Firewall
Distributed Environment Challenge
28. Network segment name for a DMZ created by two physical firewalls.
Dynamic Packet Filtering
Commonly used in Internet.
Port Numbers
Screened Sub-Net
29. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Open System Authentication (OSA)
VoIP
802.15
Classless inter-domain routing (CIDR)
30. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Iterated Association
Switched Virtual Circuit (SVC)
Temporal Key Integrity Protocol (TKIP)
T3
31. 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.
Network Address Translator (NAT)
802.11b
Frame Relay
Spread Spectrum
32. 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.
ThickNet - aka 10base5.
Wired Equivalent Privacy (WEP)
Reverse Address Resolution Protocol (RARP )
Source Routing
33. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
Mesh Topology
802.11b
Permanent Virtual Circuit (PVC)
DOS attacks from flooding
34. Protocol that works at the network layer and informs hosts - routers - and devices of network or computer problems. It is the major component of the ping utility.
Fiber Distributed Data Interface (FDDI)
Synchronous Optical Networks (SONETS)
Ethernet (802.3)
ICMP (Internet Control Message Protocol)
35. Problems: Central device is a single point of failure.
Star Topology
Noise
Bluejacking
ARP (Address Resolution Protocol)
36. New variant to traditional email spam on VoIP networks.
Pulse Code Modulation (PCM)
802.16
Commonly used in FDDI.
Spam over Internet Telephony (SPIT)
37. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Coaxial Cables
UDP
Remote Access Servers
Synchronous Optical Networks (SONETS)
38. 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.
Challenge Handshake Authentication Protocol (CHAP)
Direct Sequence Spread Spectrum (DSSS)
IGMP
Network Address Translator (NAT)
39. This network technology determines which system will send data based on which one has the token.
Screened Host Firewall
OSI Layer 5: Session Layer
Commonly used in logical bus - Ethernet - token ring.
Token Passing
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.
Switch
Digital Subscriber Line (DSL)
Session Initiation Protocol (SIP)
Distributed Environment Challenge
41. 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.
802.11b
Multilevel Switching
Application Proxy vs. Circuit Level
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.
Point-To-Point Tunneling Protocol (PPTP)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Integrated Services Digital Network (ISDN)
Simplex: One direction.
43. 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).
Commonly used in Internet.
SPIM
Isochronous Communication Processes
IPSec
44. Protocol stack used instead of TCP/IP on wireless devices. The "gap" in this protocol involves translating its secure traffic to SSL or TLS - which is typically done by a 3rd party.
802.11
Attenuation
Direct Sequence Spread Spectrum (DSSS)
Wireless Application Protocol (WAP)
45. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Multi-protocol Label Switching
Crosstalk
Password Authentication Protocol (PAP)
Digital Subscriber Line (DSL)
46. Type of authentication protocol that provides a framework to enable may types of authentication techniques to be used during PPP connections. It extends the possibilities to one-time passwords - token cards - biometrics - Kerberos - and digital certi
UDP
ARP Poisoning
Screened Sub-Net
Extensible Authentication Protocol (EAP)
47. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Kernel Proxy Firewall
T3
Spread Spectrum
Simplex: One direction.
48. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
802.16
Wired Equivalent Privacy (WEP)
Virtual Private Network (VPN)
UDP
49. 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.
Synchronous Optical Networks (SONETS)
Extensible Authentication Protocol (EAP)
802.11a
Subnetting
50. 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.
VLAN
Full-Duplex
Plenum-rated Cables
High Level Data Link Control (HLDC)