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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 wireless security standard that uses AES in CBC mode.
Application Proxy vs. Circuit Level
Carrier sense multiple access with collision detection (CSMA/CD)
CBC-MAC Protocol (CCMP)
OSI Layer 7: Application
2. Network segment name for a DMZ created by two physical firewalls.
Digital Subscriber Line (DSL)
Screened Sub-Net
Star Topology
Synchronous Communication
3. These are used to connect multiple switches for traffic of the same classification. Example - two voice switches at a local phone company's central office.
Application Proxy vs. Circuit Level
Extensible Authentication Protocol (EAP)
Loki Attack
Trunk Lines
4. 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.
LLC (Logical Link Control - 802.2)
OSI Layer 2: Data Link Layer
Port Numbers
Router
5. 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.
Asynchronous Communication
ARP (Address Resolution Protocol)
Proxy Firewall
Committed Information Rate (CIR)
6. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Fiber Distributed Data Interface (FDDI)
VoIP
DOS attacks from flooding
Commonly used in FDDI.
7. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
802.11
Classless inter-domain routing (CIDR)
Source Routing
Point-To-Point (PPP)
8. OSI layer that provides physical connections for transmission and performs the electrical encoding of data. This layer transforms bits to electrical signals. Protocols at this level HSSI (High Speed Serial Interface) - X.21 - EIA/TIA 232 and 449.
Wide Area Network (WAN)
Source Routing
Synchronous Optical Networks (SONETS)
OSI Layer 1: Physical
9. 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
Packet Filtering Firewall
Remote Access Servers
Layer 2 Tunneling Protocol (L2TP)
10. 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.
Isochronous Communication Processes
Ethernet (802.3)
X.25
Multilevel Switching
11. Both directions - both applications can send information at a time. Session Layer Communication Modes
OSI Layer 6: Presentation
Token Ring (802.5)
IPSec
Full-Duplex
12. Layer 3 - layer 4 - and other layer switches have more enhanced functionality than layer 2 switches. Combines switching and routing technologies - packet inspection - traffic prioritization - and quality of service (QoS).
CBC-MAC Protocol (CCMP)
Multilevel Switching
DOS attacks from flooding
Full-Duplex
13. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
IGMP
SPIM
Session Initiation Protocol (SIP)
ThinNet - aka 10base2
14. 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.
Integrated Services Digital Network (ISDN)
Ring Topology
Commonly used in Internet.
Password Authentication Protocol (PAP)
15. Standard that addresses wireless MAN technologies.
Point-To-Point Tunneling Protocol (PPTP)
Temporal Key Integrity Protocol (TKIP)
Network Address Translator (NAT)
802.16
16. 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
Token Ring (802.5)
Digital Subscriber Line (DSL)
IGMP
17. Communication devices that determine synchronization scheme before data transmission.
Synchronous Communication
Proxy Firewall Strengths
ARP Poisoning
Wireless Application Protocol (WAP)
18. 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.
Distributed Environment Challenge
Subnetting
Spam over Internet Telephony (SPIT)
LLC (Logical Link Control - 802.2)
19. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Direct Sequence Spread Spectrum (DSSS)
Coaxial Cables
Challenge Handshake Authentication Protocol (CHAP)
DNS (Domain Name System)
20. 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.
Extensible Authentication Protocol (EAP)
Multi-protocol Label Switching
Dynamic Packet Filtering
LLC (Logical Link Control - 802.2)
21. 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.
Packet Filtering Firewall
Ethernet (802.3)
OSI Layer 5: Session Layer
Circuit Switching
22. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
Full-Duplex
Password Authentication Protocol (PAP)
802.11a
Synchronous Data Link Control (SDLC)
23. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Simplex: One direction.
Pulse Code Modulation (PCM)
Layers in the OSI Model
Application Proxy vs. Circuit Level
24. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Plenum-rated Cables
Synchronous Data Link Control (SDLC)
Attenuation
OSI Layer 3: Network Layer
25. 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)
Simplex: One direction.
802.11
Packet Filtering Firewall
26. 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
Open Relay
Synchronous Data Link Control (SDLC)
Private Branch Exchange (PBX)
TCP
27. 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.
Layer 2 Tunneling Protocol (L2TP)
ARP Poisoning
Mesh Topology
Bus Topology
28. 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.
Repeaters
OSI Layer 4: Transport Layer
Channel Service Unit/Data Service Unit (CSU/DSU)
T1
29. Communication devices that are not synchronized - meaning all devices can send data at will - send a sequence of bits framed with a start and stop bit.
Asynchronous Communication
Dual-Homed Firewall
802.11
Packet Filtering Firewall
30. Type of cabling problem signals from one wire crossing over to another wire.
Bluejacking
Fiber-optic Cables
Crosstalk
Noise
31. 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
Application Proxy vs. Circuit Level
Full-Duplex
OSI Layer 2: Data Link Layer
FDDI-2
32. 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.
Multistation Access Unit (MAU)
Source Routing
Metropolitan Area Network (MAN)
ThinNet - aka 10base2
33. Wireless communication that distributes individual signals across the allocated frequencies.
OSI Layer 5: Session Layer
Spread Spectrum
Cable Modem
X.25
34. 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.
Source Routing
Application Proxy Firewall
Packet Filtering Firewall
Cable Modem
35. 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.
Token Passing
Wireless Application Protocol (WAP)
Committed Information Rate (CIR)
Reverse Address Resolution Protocol (RARP )
36. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
Direct Sequence Spread Spectrum (DSSS)
TCP
10baseT
Repeaters
37. Strengths of a type of firewall: Better security than packet filtering. Looks at all info in the packet - up to the application layer. Breaks the connection between trusted and untrusted systems. Weaknesses include limited number of applications supp
Proxy Firewall Strengths
Synchronous Communication
Noise
Extensible Authentication Protocol (EAP)
38. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Dual-Homed Firewall
Source Routing
OSI Layer 6: Presentation
Application Proxy vs. Circuit Level
39. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
Classless inter-domain routing (CIDR)
OSI Data encapsulation
Token Ring (802.5)
T1
40. 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.
Layer 2 Tunneling Protocol (L2TP)
Multi-protocol Label Switching
VLAN
Plenum-rated Cables
41. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
VoIP
Remote Access Servers
Switch
Layers in the TCP/IP Model
42. 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
Wide Area Network (WAN)
Classless inter-domain routing (CIDR)
Pulse Code Modulation (PCM)
Private Branch Exchange (PBX)
43. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Switched Virtual Circuit (SVC)
Open Relay
802.11a
ICMP (Internet Control Message Protocol)
44. 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-
SOCKS Firewall
Frequency Hopping Spread Spectrum (FHSS)
Fiber Distributed Data Interface (FDDI)
Definition of Protocol
45. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Trunk Lines
802.11
Subnetting
Bridge
46. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
CBC-MAC Protocol (CCMP)
OSI Data encapsulation
Token Ring (802.5)
802.11
47. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Router
Remote Access Servers
Direct Sequence Spread Spectrum (DSSS)
Multistation Access Unit (MAU)
48. 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).
Remote Access Servers
Asynchronous Communication
Classless inter-domain routing (CIDR)
IPSec
49. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
OSI Data encapsulation
FDDI-2
Coaxial Cables
Session Initiation Protocol (SIP)
50. 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
Channel Service Unit/Data Service Unit (CSU/DSU)
Subnetting
IPv6