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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. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Port Numbers
ThinNet - aka 10base2
Attenuation
Ethernet (802.3)
2. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Blue Boxing
Repeaters
Spread Spectrum
ARP (Address Resolution Protocol)
3. 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.
DOS attacks from flooding
Dynamic Packet Filtering
Open System Authentication (OSA)
Commonly used in FDDI.
4. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
IGMP
Blue Boxing
OSI Layer 4: Transport Layer
FDDI-2
5. 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.
Wireless Application Protocol (WAP)
Full-Duplex
OSI Layer 4: Transport Layer
Noise
6. 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.
Integrated Services Digital Network (ISDN)
Packet Filtering Firewall
TCP
Multilevel Switching
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.
VoIP
Plenum-rated Cables
Spread Spectrum
802.16
8. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
SPIM
Layers in the OSI Model
ARP (Address Resolution Protocol)
OSI Layer 7: Application
9. Proprietary protocol that enables secondary devices to communicate with primary stations or mainframes in an IBM architecture. Developed in the mid-70's for use in a systems network architecture (SNA) environment. First synchronous - link layer - bit
Synchronous Data Link Control (SDLC)
Layer 2 Tunneling Protocol (L2TP)
10baseT
Spam over Internet Telephony (SPIT)
10. Network segment name for a DMZ created by two physical firewalls.
Screened Host Firewall
Screened Sub-Net
Crosstalk
DNS (Domain Name System)
11. Communication devices that determine synchronization scheme before data transmission.
Synchronous Communication
ARP Poisoning
Proxy Firewall
Dynamic Packet Filtering
12. 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.
Committed Information Rate (CIR)
Metropolitan Area Network (MAN)
SOCKS Firewall
LLC (Logical Link Control - 802.2)
13. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Switched Virtual Circuit (SVC)
Packet Filtering Firewall
Commonly used in logical bus - Ethernet - token ring.
Plenum-rated Cables
14. 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.
Frame Relay
Router
Multilevel Switching
Bastion Host
15. 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
Dedicated Links
Private Branch Exchange (PBX)
802.11
IPv6
16. 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.
Application Proxy Firewall
Bridge
Plenum-rated Cables
Packet Switching
17. 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
Ethernet (802.3)
OSI Layer 6: Presentation
Open Relay
18. Protocol that translates a MAC address into an IP address.
Multilevel Switching
Reverse Address Resolution Protocol (RARP )
Packet Switching
Switched Virtual Circuit (SVC)
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-
Iterated Association
Synchronous Communication
Frequency Hopping Spread Spectrum (FHSS)
Ring Topology
20. 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
Multi-protocol Label Switching
Tree Topology
VLAN
Dual-Homed Firewall
21. 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
Open Relay
Extensible Authentication Protocol (EAP)
Wired Equivalent Privacy (WEP)
Proxy Firewall
22. 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.
Circuit Switching
Service Set ID (SSID)
Circuit Level Proxy Firewall
ARP (Address Resolution Protocol)
23. Protocol that increases address size from 32 bits to 128 bits
Synchronous Data Link Control (SDLC)
Multistation Access Unit (MAU)
Bus Topology
IPv6
24. 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.
Synchronous Data Link Control (SDLC)
Repeaters
Bluejacking
Token Ring (802.5)
25. 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.
Dynamic Packet Filtering
Commonly used in Ethernet.
Wired Equivalent Privacy (WEP)
Synchronous Data Link Control (SDLC)
26. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Temporal Key Integrity Protocol (TKIP)
IPSec
Dual-Homed Firewall
Reverse Address Resolution Protocol (RARP )
27. 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)
Commonly used in FDDI.
Multistation Access Unit (MAU)
Private Branch Exchange (PBX)
28. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Temporal Key Integrity Protocol (TKIP)
IPSec
Fiber Distributed Data Interface (FDDI)
802.11i
29. 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
Synchronous Communication
Packet Switching
802.16
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
30. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Fiber-optic Cables
Noise
Private Branch Exchange (PBX)
Kernel Proxy Firewall
31. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
Noise
Blue Boxing
Screened Host Firewall
ThickNet - aka 10base5.
32. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
FDDI-2
OSI Layer 3: Network Layer
Attenuation
Network Address Translator (NAT)
33. Provides high-speed access - up to 50 Mbps - to the Internet through existing cable coaxial and fiber lines. Major security concern is the fact that neighbors use the same coaxial network and can monitor each others traffic.
OSI Layer 6: Presentation
CBC-MAC Protocol (CCMP)
Application Proxy Firewall
Cable Modem
34. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
802.11a
OSI Layer 2: Data Link Layer
Channel Service Unit/Data Service Unit (CSU/DSU)
Dual-Homed Firewall
35. 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
Multi-protocol Label Switching
Switch
Synchronous Communication
Multistation Access Unit (MAU)
36. Problems: Requires more expense in cabling and extra effort to track down cable faults.
802.11a
Token Ring (802.5)
Mesh Topology
Open Relay
37. Problems: Central device is a single point of failure.
802.11i
ICMP (Internet Control Message Protocol)
Star Topology
Full-Duplex
38. Type of cable that carries data as light waves - expensive - can transmit data at high speeds - difficult to tap into - and is resistant to EMI. Most secure cabling option - but vulnerable to dispersion.
OSI Layer 1: Physical
Fiber-optic Cables
Multistation Access Unit (MAU)
ARP (Address Resolution Protocol)
39. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Carrier sense multiple access with collision detection (CSMA/CD)
OSI Layer 7: Application
Wireless Application Protocol (WAP)
Digital Subscriber Line (DSL)
40. 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
Blue Boxing
OSI Layer 2: Data Link Layer
802.11i
Challenge Handshake Authentication Protocol (CHAP)
41. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Tree Topology
Dedicated Links
VoIP
802.11i
42. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Screened Sub-Net
Remote Access Servers
DOS attacks from flooding
Star Topology
43. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Attenuation
Asynchronous Transfer Mode (ATM)
Channel Service Unit/Data Service Unit (CSU/DSU)
Reverse Address Resolution Protocol (RARP )
44. In the OSI layer 5 - these are the types of what?
ICMP (Internet Control Message Protocol)
Simplex: One direction.
Proxy Firewall Strengths
Token Passing
45. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Synchronous Communication
LLC (Logical Link Control - 802.2)
Permanent Virtual Circuit (PVC)
Proxy Firewall Strengths
46. 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.
Iterated Association
Layers in the TCP/IP Model
Noise
High Level Data Link Control (HLDC)
47. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Remote Access Servers
IPv6
UDP
ThinNet - aka 10base2
48. Protocol for allowing multi-cast (one to many) communication
Ring Topology
Multilevel Switching
Challenge Handshake Authentication Protocol (CHAP)
IGMP
49. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
SOCKS Firewall
Circuit Level Proxy Firewall
Point-To-Point Tunneling Protocol (PPTP)
Iterated Association
50. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Shared Key Authentication (SKA)
802.16
Commonly used in Internet.
Circuit Switching
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