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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. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
10baseT
OSI Layer 2: Data Link Layer
Ethernet (802.3)
Point-To-Point (PPP)
2. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Shared Key Authentication (SKA)
Spam over Internet Telephony (SPIT)
Ethernet (802.3)
Serial Line Internet Protocol (SLIP)
3. 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.
Point-To-Point Tunneling Protocol (PPTP)
Direct Sequence Spread Spectrum (DSSS)
DNS (Domain Name System)
Bridge
4. Protocol for allowing multi-cast (one to many) communication
Shared Key Authentication (SKA)
IGMP
Dynamic Packet Filtering
Commonly used in Internet.
5. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
Frequency Hopping Spread Spectrum (FHSS)
802.11b
High Level Data Link Control (HLDC)
Bluejacking
6. Standard that outlines wireless personal area network (WPAN) technologies.
Proxy Firewall Strengths
Password Authentication Protocol (PAP)
Temporal Key Integrity Protocol (TKIP)
802.15
7. 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.
802.11i
OSI Layer 5: Session Layer
Session Initiation Protocol (SIP)
VLAN
8. Both directions - only one application can send information at a time
Spread Spectrum
LLC (Logical Link Control - 802.2)
Half-Duplex
IPSec
9. 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
Reverse Address Resolution Protocol (RARP )
Dynamic Packet Filtering
OSI Layer 3: Network Layer
10. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
FDDI-2
SOCKS Firewall
Bastion Host
OSI Layer 6: Presentation
11. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Shared Key Authentication (SKA)
ARP (Address Resolution Protocol)
Synchronous Data Link Control (SDLC)
Star Topology
12. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
10baseT
Channel Service Unit/Data Service Unit (CSU/DSU)
UDP
Half-Duplex
13. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
Proxy Firewall
Port Numbers
Definition of Protocol
ThickNet - aka 10base5.
14. 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.
Repeaters
UDP
Attenuation
Stateful Firewall
15. 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.
Stateful Firewall
Direct Sequence Spread Spectrum (DSSS)
Dedicated Links
Ethernet (802.3)
16. 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.
Token Passing
Asynchronous Communication
Dynamic Packet Filtering
Virtual Private Network (VPN)
17. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Private Branch Exchange (PBX)
Commonly used in FDDI.
Loki Attack
Dual-Homed Firewall
18. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Crosstalk
DOS attacks from flooding
Mesh Topology
Dedicated Links
19. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Circuit Switching
Frequency Hopping Spread Spectrum (FHSS)
OSI Data encapsulation
Subnetting
20. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Crosstalk
Commonly used in FDDI.
Attenuation
Commonly used in logical bus - Ethernet - token ring.
21. 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.
Serial Line Internet Protocol (SLIP)
Wireless Application Protocol (WAP)
Committed Information Rate (CIR)
Attenuation
22. 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.
Application Proxy vs. Circuit Level
Proxy Firewall
Virtual Private Network (VPN)
Wired Equivalent Privacy (WEP)
23. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
IPSec
ARP (Address Resolution Protocol)
802.11
OSI Layer 5: Session Layer
24. New variant to traditional email spam on VoIP networks.
IGMP
Packet Filtering Firewall
Star Topology
Spam over Internet Telephony (SPIT)
25. 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).
IPSec
Tree Topology
Carrier sense multiple access with collision detection (CSMA/CD)
IPv6
26. 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.
Ethernet (802.3)
Subnetting
Asynchronous Transfer Mode (ATM)
Source Routing
27. 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)
Mesh Topology
Pulse Code Modulation (PCM)
Packet Filtering Firewall
28. 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.
Ring Topology
Challenge Handshake Authentication Protocol (CHAP)
Circuit Level Proxy Firewall
T3
29. Set of rules that dictates how computer communicate over networks.
IPSec
Subnetting
Channel Service Unit/Data Service Unit (CSU/DSU)
Definition of Protocol
30. Type of wireless security standard that uses AES in CBC mode.
Circuit Level Proxy Firewall
CBC-MAC Protocol (CCMP)
Dedicated Links
T3
31. Most expensive type of WAN connection because the fee is based on distance between the two points rather than the amount of bandwidth used. Examples - T1 and T3.
IPv6
Wide Area Network (WAN)
Dedicated Links
Password Authentication Protocol (PAP)
32. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
DOS attacks from flooding
Remote Access Servers
OSI Layer 3: Network Layer
Tree Topology
33. 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.
OSI Layer 1: Physical
802.16
SPIM
Screened Sub-Net
34. 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.
IPv6
Proxy Firewall Strengths
Bridge
Circuit Level Proxy Firewall
35. 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.
Full-Duplex
Fiber Distributed Data Interface (FDDI)
Synchronous Communication
Source Routing
36. 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.
Spam over Internet Telephony (SPIT)
OSI Layer 5: Session Layer
Service Set ID (SSID)
Digital Subscriber Line (DSL)
37. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Blue Boxing
UDP
OSI Data encapsulation
IPv6
38. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
IGMP
Trunk Lines
FDDI-2
Commonly used in logical bus - Ethernet - token ring.
39. 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.
OSI Layer 2: Data Link Layer
Layer 2 Tunneling Protocol (L2TP)
Application Proxy Firewall
High Level Data Link Control (HLDC)
40. Type of topology that Uses linear single cable for all computers attached. All traffic travels full cable and can be viewed by all other computers.
UDP
Commonly used in Ethernet.
Password Authentication Protocol (PAP)
Definition of Protocol
41. 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.
Stateful Firewall
Bus Topology
Layers in the OSI Model
Cable Modem
42. 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.
Permanent Virtual Circuit (PVC)
LLC (Logical Link Control - 802.2)
Application Proxy Firewall
ICMP (Internet Control Message Protocol)
43. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
OSI Layer 1: Physical
OSI Layer 3: Network Layer
Permanent Virtual Circuit (PVC)
Noise
44. 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.
Packet Switching
Simplex: One direction.
Wireless Application Protocol (WAP)
Synchronous Optical Networks (SONETS)
45. 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.
Fiber-optic Cables
802.11b
DNS (Domain Name System)
X.25
46. Both directions - both applications can send information at a time. Session Layer Communication Modes
Full-Duplex
Token Ring (802.5)
Tree Topology
Frame Relay
47. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Network Address Translator (NAT)
Private Branch Exchange (PBX)
Ring Topology
Challenge Handshake Authentication Protocol (CHAP)
48. 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 5: Session Layer
Multilevel Switching
Integrated Services Digital Network (ISDN)
OSI Layer 6: Presentation
49. 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.
Commonly used in FDDI.
Synchronous Communication
Router
Fiber-optic Cables
50. In the OSI layer 5 - these are the types of what?
Wireless Application Protocol (WAP)
T1
Simplex: One direction.
Wired Equivalent Privacy (WEP)