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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. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Layer 2 Tunneling Protocol (L2TP)
Simplex: One direction.
Digital Subscriber Line (DSL)
VoIP
2. 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.
Circuit Switching
Plenum-rated Cables
ARP (Address Resolution Protocol)
Packet Filtering Firewall
3. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
SPIM
802.11i
Asynchronous Transfer Mode (ATM)
TCP
4. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Spread Spectrum
Remote Access Servers
UDP
Kernel Proxy Firewall
5. 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.
Source Routing
UDP
High Level Data Link Control (HLDC)
802.16
6. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
X.25
OSI Layer 1: Physical
Layers in the OSI Model
Token Passing
7. 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.
Application Proxy vs. Circuit Level
Point-To-Point Tunneling Protocol (PPTP)
ThickNet - aka 10base5.
Open Relay
8. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Fiber-optic Cables
IPv6
Packet Filtering Firewall
Bus Topology
9. Type of network layout that separates and group computers logically.
VLAN
Service Set ID (SSID)
High Level Data Link Control (HLDC)
Point-To-Point Tunneling Protocol (PPTP)
10. 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
Application Proxy vs. Circuit Level
Ethernet (802.3)
Commonly used in Internet.
11. 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 Data encapsulation
Reverse Address Resolution Protocol (RARP )
OSI Layer 3: Network Layer
Wide Area Network (WAN)
12. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Bluejacking
High Level Data Link Control (HLDC)
Temporal Key Integrity Protocol (TKIP)
Distributed Environment Challenge
13. Communication process that must deliver data with set time constraints. Applications are typically video related where audio and must match perfectly. VoIP is another example.
Point-To-Point Tunneling Protocol (PPTP)
Application Proxy vs. Circuit Level
Digital Subscriber Line (DSL)
Isochronous Communication Processes
14. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Pulse Code Modulation (PCM)
Synchronous Data Link Control (SDLC)
Classless inter-domain routing (CIDR)
Permanent Virtual Circuit (PVC)
15. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Bastion Host
Crosstalk
Temporal Key Integrity Protocol (TKIP)
Full-Duplex
16. Type of firewall that lies between the perimeter router and and LAN.
Switch
Mesh Topology
Frame Relay
Screened Host Firewall
17. Set of rules that dictates how computer communicate over networks.
UDP
SOCKS Firewall
T1
Definition of Protocol
18. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Coaxial Cables
Extensible Authentication Protocol (EAP)
VoIP
Screened Host Firewall
19. 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.
ARP (Address Resolution Protocol)
Fiber Distributed Data Interface (FDDI)
Packet Filtering Firewall
Reverse Address Resolution Protocol (RARP )
20. 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.
Synchronous Communication
Circuit Switching
Packet Filtering Firewall
10baseT
21. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
Frequency Hopping Spread Spectrum (FHSS)
Integrated Services Digital Network (ISDN)
802.11
Password Authentication Protocol (PAP)
22. 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.
Frame Relay
Ethernet (802.3)
Plenum-rated Cables
10baseT
23. Spam over IM
Spam over Internet Telephony (SPIT)
SPIM
Spread Spectrum
ThinNet - aka 10base2
24. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Wide Area Network (WAN)
X.25
IPSec
Point-To-Point (PPP)
25. 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).
Fiber Distributed Data Interface (FDDI)
Multilevel Switching
Bastion Host
OSI Layer 2: Data Link Layer
26. 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.
Bus Topology
Commonly used in Ethernet.
Iterated Association
Open Relay
27. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
802.11b
Plenum-rated Cables
Dedicated Links
Screened Host Firewall
28. Protocol that increases address size from 32 bits to 128 bits
Subnetting
Application Proxy vs. Circuit Level
IPv6
Frame Relay
29. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Switched Virtual Circuit (SVC)
Shared Key Authentication (SKA)
Bastion Host
Fiber-optic Cables
30. 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.
Switch
OSI Layer 6: Presentation
Frame Relay
802.15
31. 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.
Proxy Firewall
Open System Authentication (OSA)
Definition of Protocol
FDDI-2
32. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Fiber Distributed Data Interface (FDDI)
Wireless Application Protocol (WAP)
ThickNet - aka 10base5.
OSI Layer 7: Application
33. Type of topology where computers all are connected to each other - which provides redundancy.
VLAN
802.11b
Commonly used in Internet.
T3
34. Protocol that addresses vulnerabilities found in PAP. Uses challenge/response mechanism to authenticate the user instead of sending password.
Remote Access Servers
Network Address Translator (NAT)
Proxy Firewall Strengths
Challenge Handshake Authentication Protocol (CHAP)
35. Type of cabling problem signals from one wire crossing over to another wire.
Crosstalk
CBC-MAC Protocol (CCMP)
Port Numbers
Bridge
36. 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.
OSI Layer 4: Transport Layer
Application Proxy vs. Circuit Level
Circuit Switching
Session Initiation Protocol (SIP)
37. 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)
Point-To-Point Tunneling Protocol (PPTP)
Dedicated Links
Committed Information Rate (CIR)
38. 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.
OSI Layer 3: Network Layer
Dynamic Packet Filtering
Stateful Firewall
Multistation Access Unit (MAU)
39. 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
Iterated Association
Private Branch Exchange (PBX)
Circuit Switching
Ring Topology
40. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Packet Filtering Firewall
Application Proxy Firewall
Loki Attack
IPSec
41. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Layers in the TCP/IP Model
Loki Attack
VLAN
Token Passing
42. 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
X.25
Bastion Host
802.11b
43. 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.
Commonly used in FDDI.
Attenuation
Wired Equivalent Privacy (WEP)
OSI Layer 7: Application
44. SMTP server that is configured for sending email from any source to and destination.
Simplex: One direction.
Loki Attack
CBC-MAC Protocol (CCMP)
Open Relay
45. 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.
Trunk Lines
Port Numbers
SPIM
Mesh Topology
46. Both directions - both applications can send information at a time. Session Layer Communication Modes
Full-Duplex
10baseT
Repeaters
Permanent Virtual Circuit (PVC)
47. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
ICMP (Internet Control Message Protocol)
ThickNet - aka 10base5.
Serial Line Internet Protocol (SLIP)
T1
48. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Subnetting
ARP (Address Resolution Protocol)
DOS attacks from flooding
Password Authentication Protocol (PAP)
49. In a token ring network - each computer is connected to this - which acts as a central hub.
Packet Filtering Firewall
Multistation Access Unit (MAU)
Extensible Authentication Protocol (EAP)
Stateful Firewall
50. Identifys a WLAN. Can be used to segment environments into different WLANS.
Extensible Authentication Protocol (EAP)
Service Set ID (SSID)
Isochronous Communication Processes
CBC-MAC Protocol (CCMP)