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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. In the OSI layer 5 - these are the types of what?
Extensible Authentication Protocol (EAP)
Permanent Virtual Circuit (PVC)
Dual-Homed Firewall
Simplex: One direction.
2. Both directions - only one application can send information at a time
Bluejacking
Half-Duplex
Synchronous Communication
X.25
3. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
Loki Attack
SOCKS Firewall
OSI Layer 2: Data Link Layer
Spread Spectrum
4. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
IPSec
Dynamic Packet Filtering
Digital Subscriber Line (DSL)
Attenuation
5. 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.
DOS attacks from flooding
Integrated Services Digital Network (ISDN)
OSI Layer 1: Physical
Dedicated Links
6. Both directions - both applications can send information at a time. Session Layer Communication Modes
Frequency Hopping Spread Spectrum (FHSS)
Loki Attack
Full-Duplex
OSI Layer 2: Data Link Layer
7. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
802.15
Iterated Association
Trunk Lines
Blue Boxing
8. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Shared Key Authentication (SKA)
Dual-Homed Firewall
Star Topology
Cable Modem
9. Protocol that increases address size from 32 bits to 128 bits
Commonly used in logical bus - Ethernet - token ring.
IPv6
Point-To-Point (PPP)
ARP Poisoning
10. 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.
Stateful Firewall
Reverse Address Resolution Protocol (RARP )
Synchronous Communication
Application Proxy vs. Circuit Level
11. 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.
Wireless Application Protocol (WAP)
Coaxial Cables
X.25
Cable Modem
12. Type of firewall that looks at header information to make decisions on whether a packet is deemed acceptable. This type does not look as deep within the packet as an application level proxy - runs at the session layer.
Circuit Level Proxy Firewall
Router
Dynamic Packet Filtering
Fiber Distributed Data Interface (FDDI)
13. 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.
LLC (Logical Link Control - 802.2)
Layers in the OSI Model
Iterated Association
802.11b
14. Malware attack that sends commands inside of an ICMP packet.
Router
Loki Attack
Kernel Proxy Firewall
Switch
15. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Shared Key Authentication (SKA)
Direct Sequence Spread Spectrum (DSSS)
Noise
802.11a
16. 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
OSI Layer 1: Physical
Synchronous Optical Networks (SONETS)
Packet Switching
Layer 2 Tunneling Protocol (L2TP)
17. Wireless communication that distributes individual signals across the allocated frequencies.
10baseT
Spread Spectrum
Ring Topology
T1
18. 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.
Trunk Lines
T1
Layer 2 Tunneling Protocol (L2TP)
Token Passing
19. 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
OSI Data encapsulation
Frame Relay
Multi-protocol Label Switching
Twisted Pair Cables
20. Protocol that translates a MAC address into an IP address.
Screened Host Firewall
Layers in the TCP/IP Model
Temporal Key Integrity Protocol (TKIP)
Reverse Address Resolution Protocol (RARP )
21. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
VLAN
Noise
Packet Filtering Firewall
ThinNet - aka 10base2
22. 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.
Star Topology
Router
Reverse Address Resolution Protocol (RARP )
Mesh Topology
23. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Commonly used in logical bus - Ethernet - token ring.
Repeaters
Synchronous Data Link Control (SDLC)
Ring Topology
24. 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
Reverse Address Resolution Protocol (RARP )
Distributed Environment Challenge
OSI Layer 3: Network Layer
OSI Layer 4: Transport Layer
25. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
LLC (Logical Link Control - 802.2)
Stateful Firewall
Synchronous Communication
802.11
26. Type of firewall that keeps track of each communication session. It must maintain a state table that contains data about each connection. 3rd generation firewall - runs at the network layer.
Stateful Firewall
OSI Layer 6: Presentation
Port Numbers
Loki Attack
27. Protocol that transfers data in fixed cells (53 bytes) - is a WAN technology - and transmits data at very high rates. Supports voice - data - and video applications.
802.11
Kernel Proxy Firewall
VoIP
Asynchronous Transfer Mode (ATM)
28. Identifys a WLAN. Can be used to segment environments into different WLANS.
Service Set ID (SSID)
802.11b
Temporal Key Integrity Protocol (TKIP)
Iterated Association
29. 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.
Frequency Hopping Spread Spectrum (FHSS)
Metropolitan Area Network (MAN)
Application Proxy vs. Circuit Level
OSI Layer 5: Session Layer
30. 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.
Metropolitan Area Network (MAN)
VLAN
Token Ring (802.5)
Source Routing
31. 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
802.11i
802.11
Switch
Noise
32. 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.
OSI Layer 3: Network Layer
Trunk Lines
Carrier sense multiple access with collision detection (CSMA/CD)
Frame Relay
33. Set of rules that dictates how computer communicate over networks.
LLC (Logical Link Control - 802.2)
Password Authentication Protocol (PAP)
Point-To-Point Tunneling Protocol (PPTP)
Definition of Protocol
34. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Mesh Topology
Point-To-Point (PPP)
Private Branch Exchange (PBX)
DOS attacks from flooding
35. 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.
Repeaters
Commonly used in Ethernet.
Digital Subscriber Line (DSL)
LLC (Logical Link Control - 802.2)
36. 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 Layer 1: Physical
Network Address Translator (NAT)
Wired Equivalent Privacy (WEP)
Wireless Application Protocol (WAP)
37. Protocol that translates IP address into a MAC address (physical Ethernet address)
Challenge Handshake Authentication Protocol (CHAP)
Extensible Authentication Protocol (EAP)
Layers in the TCP/IP Model
ARP (Address Resolution Protocol)
38. 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.
OSI Layer 7: Application
Wide Area Network (WAN)
Proxy Firewall
OSI Layer 2: Data Link Layer
39. A WAN protocol that works at the data link layer and performs packet switching. Economical choice because the fee is based on bandwidth usage rather than a dedicated pipeline.
802.11a
Circuit Switching
Ethernet (802.3)
Frame Relay
40. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Ring Topology
Cable Modem
10baseT
Application Proxy Firewall
41. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
OSI Layer 1: Physical
UDP
ARP (Address Resolution Protocol)
Direct Sequence Spread Spectrum (DSSS)
42. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Synchronous Data Link Control (SDLC)
X.25
Application Proxy vs. Circuit Level
43. Standard that outlines wireless personal area network (WPAN) technologies.
Mesh Topology
802.15
Crosstalk
Port Numbers
44. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Simplex: One direction.
Serial Line Internet Protocol (SLIP)
High Level Data Link Control (HLDC)
OSI Layer 5: Session Layer
45. 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.
Frame Relay
Wired Equivalent Privacy (WEP)
802.16
Distributed Environment Challenge
46. Type of firewall that lies between the perimeter router and and LAN.
VoIP
Pulse Code Modulation (PCM)
Synchronous Optical Networks (SONETS)
Screened Host Firewall
47. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
OSI Layer 4: Transport Layer
Channel Service Unit/Data Service Unit (CSU/DSU)
Multilevel Switching
T1
48. 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.
Subnetting
Bluejacking
802.16
Integrated Services Digital Network (ISDN)
49. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
Token Ring (802.5)
Coaxial Cables
DNS (Domain Name System)
OSI Layer 3: Network Layer
50. 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.
Router
Crosstalk
Subnetting
OSI Layer 4: Transport Layer