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Test your basic knowledge |
CISSP Telecom And Network Security
Start Test
Study First
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. 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)
Layers in the OSI Model
Service Set ID (SSID)
Tree Topology
2. Protocol for allowing multi-cast (one to many) communication
Spread Spectrum
Channel Service Unit/Data Service Unit (CSU/DSU)
IGMP
ARP Poisoning
3. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
Twisted Pair Cables
ThickNet - aka 10base5.
VoIP
Spam over Internet Telephony (SPIT)
4. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
802.11
Distributed Environment Challenge
Commonly used in Internet.
Carrier sense multiple access with collision detection (CSMA/CD)
5. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Serial Line Internet Protocol (SLIP)
Frame Relay
Commonly used in Internet.
UDP
6. Protocol that increases address size from 32 bits to 128 bits
IPv6
OSI Layer 6: Presentation
SOCKS Firewall
Synchronous Optical Networks (SONETS)
7. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Packet Filtering Firewall
UDP
Distributed Environment Challenge
Bus Topology
8. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Temporal Key Integrity Protocol (TKIP)
Application Proxy vs. Circuit Level
Mesh Topology
X.25
9. 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.
LLC (Logical Link Control - 802.2)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Token Ring (802.5)
DNS (Domain Name System)
10. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Full-Duplex
Point-To-Point Tunneling Protocol (PPTP)
Star Topology
Blue Boxing
11. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
OSI Data encapsulation
Serial Line Internet Protocol (SLIP)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Temporal Key Integrity Protocol (TKIP)
12. 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.
OSI Layer 3: Network Layer
Commonly used in Ethernet.
OSI Layer 4: Transport Layer
Digital Subscriber Line (DSL)
13. 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.
OSI Layer 7: Application
Committed Information Rate (CIR)
T3
Wired Equivalent Privacy (WEP)
14. Protocol that translates IP address into a MAC address (physical Ethernet address)
Temporal Key Integrity Protocol (TKIP)
Bridge
Extensible Authentication Protocol (EAP)
ARP (Address Resolution Protocol)
15. 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.
Crosstalk
OSI Layer 6: Presentation
OSI Layer 7: Application
OSI Layer 5: Session Layer
16. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Commonly used in FDDI.
Layer 2 Tunneling Protocol (L2TP)
Attenuation
Source Routing
17. Type of network layout that is a large geographical region connecting more that one LAN.
802.16
Half-Duplex
Repeaters
Wide Area Network (WAN)
18. 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
802.11b
IPv6
Open Relay
19. 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.
802.16
Bridge
Asynchronous Transfer Mode (ATM)
Full-Duplex
20. 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.
OSI Data encapsulation
Wireless Application Protocol (WAP)
Session Initiation Protocol (SIP)
Application Proxy vs. Circuit Level
21. 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.
Simplex: One direction.
Network Address Translator (NAT)
Metropolitan Area Network (MAN)
Router
22. 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.
Packet Switching
Commonly used in Internet.
UDP
Fiber Distributed Data Interface (FDDI)
23. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
OSI Layer 7: Application
Proxy Firewall Strengths
Dual-Homed Firewall
Source Routing
24. 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.
Iterated Association
Application Proxy Firewall
Wired Equivalent Privacy (WEP)
IPSec
25. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
Repeaters
802.11a
High Level Data Link Control (HLDC)
Fiber-optic Cables
26. 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.
Extensible Authentication Protocol (EAP)
Distributed Environment Challenge
Coaxial Cables
Fiber-optic Cables
27. 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.
Distributed Environment Challenge
Fiber-optic Cables
Ethernet (802.3)
Application Proxy vs. Circuit Level
28. 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
Cable Modem
Synchronous Data Link Control (SDLC)
Point-To-Point Tunneling Protocol (PPTP)
Token Ring (802.5)
29. 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.
Twisted Pair Cables
Circuit Switching
DOS attacks from flooding
SPIM
30. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Full-Duplex
Classless inter-domain routing (CIDR)
Dual-Homed Firewall
Spam over Internet Telephony (SPIT)
31. A packet switching technology that is used by telecommunication services for data-only traffic. It is a subscriber based service that operates within the network and data link layers.
Switched Virtual Circuit (SVC)
X.25
Serial Line Internet Protocol (SLIP)
IPv6
32. Standard that outlines wireless personal area network (WPAN) technologies.
Spam over Internet Telephony (SPIT)
Cable Modem
DNS (Domain Name System)
802.15
33. This network technology determines which system will send data based on which one has the token.
Port Numbers
Fiber-optic Cables
Token Passing
Serial Line Internet Protocol (SLIP)
34. Type of network layout that separates and group computers logically.
Open Relay
VLAN
802.15
X.25
35. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
Challenge Handshake Authentication Protocol (CHAP)
OSI Layer 3: Network Layer
Layers in the OSI Model
Pulse Code Modulation (PCM)
36. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Proxy Firewall
Asynchronous Communication
Bridge
ThinNet - aka 10base2
37. 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.
802.11a
Isochronous Communication Processes
TCP
OSI Layer 4: Transport Layer
38. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Private Branch Exchange (PBX)
Switched Virtual Circuit (SVC)
Wireless Application Protocol (WAP)
Wired Equivalent Privacy (WEP)
39. If the packet header information is used to determine destinations rather than the routes configured into the router. Packets with this information should be dropped.
Synchronous Data Link Control (SDLC)
Kernel Proxy Firewall
Source Routing
Repeaters
40. 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
Synchronous Communication
LLC (Logical Link Control - 802.2)
VLAN
41. Wireless standard that will improve security of wireless communication
Half-Duplex
Bastion Host
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
802.11i
42. 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.
Virtual Private Network (VPN)
Fiber-optic Cables
Packet Filtering Firewall
Point-To-Point (PPP)
43. 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
VoIP
Bridge
Challenge Handshake Authentication Protocol (CHAP)
Packet Switching
44. Altering an ARP table so an IP address is mapped to a different MAC address. Results in traffic being routed to an attacker's computer.
Multistation Access Unit (MAU)
Token Passing
ARP Poisoning
Asynchronous Transfer Mode (ATM)
45. OSI layer 2 Sub-layers. The first provides a standard interface for the network protocol being used. The second provides a standard interface for the physical layer protocol being used.
Router
Mesh Topology
LLC (Logical Link Control - 802.2)
Layers in the TCP/IP Model
46. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Classless inter-domain routing (CIDR)
Iterated Association
Synchronous Optical Networks (SONETS)
Frequency Hopping Spread Spectrum (FHSS)
47. 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.
Dynamic Packet Filtering
OSI Layer 5: Session Layer
LLC (Logical Link Control - 802.2)
Virtual Private Network (VPN)
48. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Session Initiation Protocol (SIP)
Classless inter-domain routing (CIDR)
Dynamic Packet Filtering
Proxy Firewall
49. 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.
Tree Topology
Packet Filtering Firewall
Subnetting
Virtual Private Network (VPN)
50. In a token ring network - each computer is connected to this - which acts as a central hub.
Multilevel Switching
SOCKS Firewall
Multistation Access Unit (MAU)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.