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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. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Loki Attack
Reverse Address Resolution Protocol (RARP )
Source Routing
Mesh Topology
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.
SOCKS Firewall
Service Set ID (SSID)
Fiber Distributed Data Interface (FDDI)
Open System Authentication (OSA)
3. Both directions - only one application can send information at a time
Kernel Proxy Firewall
Half-Duplex
Session Initiation Protocol (SIP)
Commonly used in logical bus - Ethernet - token ring.
4. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Serial Line Internet Protocol (SLIP)
Permanent Virtual Circuit (PVC)
LLC (Logical Link Control - 802.2)
OSI Layer 4: Transport Layer
5. 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
Bluejacking
High Level Data Link Control (HLDC)
Switch
OSI Layer 2: Data Link Layer
6. Type of network layout that is a large geographical region connecting more that one LAN.
OSI Layer 6: Presentation
Integrated Services Digital Network (ISDN)
Blue Boxing
Wide Area Network (WAN)
7. 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.
Network Address Translator (NAT)
Packet Filtering Firewall
Application Proxy vs. Circuit Level
Trunk Lines
8. OSI layer that provides routing - addressing - and fragmentation of packets. This layer can determine alternative routes to avoid network congestion. Protocols that use this layer are IP - ICMP - RIP - OSPF (Open Shortest Path First) - BGP (Border Ga
OSI Layer 2: Data Link Layer
802.11b
OSI Layer 3: Network Layer
Frequency Hopping Spread Spectrum (FHSS)
9. 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.
Asynchronous Communication
Star Topology
Frame Relay
Cable Modem
10. 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).
Application Proxy Firewall
Bluejacking
Spread Spectrum
Channel Service Unit/Data Service Unit (CSU/DSU)
11. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
DNS (Domain Name System)
Half-Duplex
Multilevel Switching
Packet Filtering Firewall
12. 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.
Plenum-rated Cables
Layers in the TCP/IP Model
Wired Equivalent Privacy (WEP)
Router
13. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Commonly used in FDDI.
Simplex: One direction.
VoIP
ARP (Address Resolution Protocol)
14. 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.
Token Passing
Cable Modem
High Level Data Link Control (HLDC)
OSI Layer 3: Network Layer
15. 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.
Trunk Lines
ICMP (Internet Control Message Protocol)
Repeaters
Commonly used in FDDI.
16. New variant to traditional email spam on VoIP networks.
Source Routing
Spam over Internet Telephony (SPIT)
Application Proxy vs. Circuit Level
Proxy Firewall
17. Malware attack that sends commands inside of an ICMP packet.
Screened Host Firewall
Loki Attack
Bluejacking
Commonly used in logical bus - Ethernet - token ring.
18. Set of rules that dictates how computer communicate over networks.
IPv6
Definition of Protocol
DOS attacks from flooding
Service Set ID (SSID)
19. 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.
Frequency Hopping Spread Spectrum (FHSS)
Commonly used in FDDI.
Direct Sequence Spread Spectrum (DSSS)
802.11i
20. In the OSI layer 5 - these are the types of what?
Remote Access Servers
Simplex: One direction.
Star Topology
ICMP (Internet Control Message Protocol)
21. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
UDP
T3
Synchronous Optical Networks (SONETS)
Ethernet (802.3)
22. 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
Challenge Handshake Authentication Protocol (CHAP)
Fiber Distributed Data Interface (FDDI)
Asynchronous Transfer Mode (ATM)
23. Problems: Central device is a single point of failure.
802.11a
Open Relay
CBC-MAC Protocol (CCMP)
Star Topology
24. Type of cabling problem signals from one wire crossing over to another wire.
DOS attacks from flooding
Classless inter-domain routing (CIDR)
Crosstalk
Open Relay
25. Type of topology where computers all are connected to each other - which provides redundancy.
TCP
Open Relay
Commonly used in Internet.
Synchronous Communication
26. 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.
Metropolitan Area Network (MAN)
Carrier sense multiple access with collision detection (CSMA/CD)
Token Passing
Spread Spectrum
27. 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.
Serial Line Internet Protocol (SLIP)
Asynchronous Transfer Mode (ATM)
Circuit Switching
Reverse Address Resolution Protocol (RARP )
28. 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.
Twisted Pair Cables
OSI Data encapsulation
Distributed Environment Challenge
VLAN
29. 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.
Subnetting
Frame Relay
Ring Topology
Application Proxy vs. Circuit Level
30. 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.
IPv6
Packet Filtering Firewall
Trunk Lines
Blue Boxing
31. 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.
VoIP
ThickNet - aka 10base5.
Synchronous Optical Networks (SONETS)
Wired Equivalent Privacy (WEP)
32. 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
Packet Filtering Firewall
Bus Topology
SPIM
Private Branch Exchange (PBX)
33. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
VoIP
Multistation Access Unit (MAU)
Ethernet (802.3)
Synchronous Communication
34. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Noise
DOS attacks from flooding
Packet Filtering Firewall
High Level Data Link Control (HLDC)
35. Protocol that translates IP address into a MAC address (physical Ethernet address)
Frame Relay
Distributed Environment Challenge
802.11
ARP (Address Resolution Protocol)
36. 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.
Repeaters
Virtual Private Network (VPN)
Synchronous Optical Networks (SONETS)
Asynchronous Transfer Mode (ATM)
37. VPN protocol that works at the data link layer - can only run in IP networks - and provides encryption and encapsulation. This is Microsoft's VPN solution.
Commonly used in FDDI.
Point-To-Point Tunneling Protocol (PPTP)
802.11b
Session Initiation Protocol (SIP)
38. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Committed Information Rate (CIR)
Proxy Firewall
Serial Line Internet Protocol (SLIP)
OSI Layer 6: Presentation
39. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Network Address Translator (NAT)
Star Topology
Layers in the OSI Model
Ethernet (802.3)
40. 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.
Kernel Proxy Firewall
OSI Data encapsulation
Cable Modem
Dedicated Links
41. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Channel Service Unit/Data Service Unit (CSU/DSU)
Permanent Virtual Circuit (PVC)
Coaxial Cables
Full-Duplex
42. Type of firewall that lies between the perimeter router and and LAN.
Serial Line Internet Protocol (SLIP)
ARP Poisoning
Iterated Association
Screened Host Firewall
43. The well known values range from 0-1023. FTP runs on 20 and 21 - SMTP runs on 25 - TFTP runs on 69 - DNS runs on 53 - HTTP runs on 80 - HTTPS runs on 443 - SNMP runs on 161.
Port Numbers
ThickNet - aka 10base5.
T3
Isochronous Communication Processes
44. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Half-Duplex
OSI Layer 1: Physical
Crosstalk
Blue Boxing
45. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
T3
Wired Equivalent Privacy (WEP)
Packet Filtering Firewall
Temporal Key Integrity Protocol (TKIP)
46. Protocol that increases address size from 32 bits to 128 bits
Network Address Translator (NAT)
Simplex: One direction.
IPv6
Carrier sense multiple access with collision detection (CSMA/CD)
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.
CBC-MAC Protocol (CCMP)
Carrier sense multiple access with collision detection (CSMA/CD)
UDP
Challenge Handshake Authentication Protocol (CHAP)
48. In a token ring network - each computer is connected to this - which acts as a central hub.
Spam over Internet Telephony (SPIT)
Multistation Access Unit (MAU)
ARP (Address Resolution Protocol)
Circuit Level Proxy Firewall
49. 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.
Simplex: One direction.
ThinNet - aka 10base2
Switch
Token Ring (802.5)
50. Type of network layout that separates and group computers logically.
IGMP
VLAN
Blue Boxing
10baseT