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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. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Extensible Authentication Protocol (EAP)
VLAN
Bluejacking
Noise
2. 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.
Noise
Blue Boxing
Spam over Internet Telephony (SPIT)
Integrated Services Digital Network (ISDN)
3. Strengths of a type of Stateful Firewall: High security - better performance than an application firewall. Weaknesses include more complex - ___________ - if rebooted all information is lost.
Remote Access Servers
DOS attacks from flooding
802.11a
Packet Filtering Firewall
4. In the OSI layer 5 - these are the types of what?
Simplex: One direction.
IPSec
Token Passing
Point-To-Point Tunneling Protocol (PPTP)
5. 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).
Dual-Homed Firewall
IPSec
T1
Dedicated Links
6. 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.
Commonly used in Internet.
Circuit Switching
Dedicated Links
Network Address Translator (NAT)
7. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
ARP (Address Resolution Protocol)
802.11
Shared Key Authentication (SKA)
Stateful Firewall
8. Uses tunneling protocols and encryption to provide a secure network connection between two network hosts. Private and secure connections can be made across an unsecured network. Example protocols are PPTP - L2TP - and IPSec.
Virtual Private Network (VPN)
CBC-MAC Protocol (CCMP)
Packet Filtering Firewall
Fiber Distributed Data Interface (FDDI)
9. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Packet Switching
Network Address Translator (NAT)
UDP
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
10. 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.
Serial Line Internet Protocol (SLIP)
Service Set ID (SSID)
Cable Modem
Reverse Address Resolution Protocol (RARP )
11. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Open System Authentication (OSA)
Serial Line Internet Protocol (SLIP)
Synchronous Communication
OSI Layer 5: Session Layer
12. Standard that addresses wireless MAN technologies.
Kernel Proxy Firewall
Dual-Homed Firewall
802.16
Multistation Access Unit (MAU)
13. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Noise
Layers in the TCP/IP Model
Point-To-Point (PPP)
Token Ring (802.5)
14. Type of network layout that is a large geographical region connecting more that one LAN.
Wide Area Network (WAN)
X.25
Repeaters
CBC-MAC Protocol (CCMP)
15. Problems: Central device is a single point of failure.
Star Topology
OSI Layer 3: Network Layer
Shared Key Authentication (SKA)
Twisted Pair Cables
16. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Point-To-Point (PPP)
Service Set ID (SSID)
SOCKS Firewall
T3
17. 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.
Shared Key Authentication (SKA)
Port Numbers
802.15
OSI Layer 7: Application
18. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
OSI Layer 6: Presentation
Bus Topology
Password Authentication Protocol (PAP)
Coaxial Cables
19. More complexity and drastically increases the difficultly of access control. Many different devices - services - and users make it difficult to know which entities to trust and to what degree.
Distributed Environment Challenge
Repeaters
Definition of Protocol
Spread Spectrum
20. 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.
Commonly used in Ethernet.
Layers in the OSI Model
Trunk Lines
Application Proxy Firewall
21. Both directions - both applications can send information at a time. Session Layer Communication Modes
Full-Duplex
Layers in the TCP/IP Model
Tree Topology
Ethernet (802.3)
22. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
IPSec
Attenuation
Service Set ID (SSID)
Bluejacking
23. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
FDDI-2
OSI Data encapsulation
Isochronous Communication Processes
Frame Relay
24. 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.
Synchronous Data Link Control (SDLC)
Cable Modem
Dedicated Links
Multilevel Switching
25. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Pulse Code Modulation (PCM)
Bluejacking
IGMP
Ring Topology
26. 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.
Token Passing
Point-To-Point Tunneling Protocol (PPTP)
Open Relay
OSI Layer 4: Transport Layer
27. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
OSI Layer 6: Presentation
TCP
OSI Layer 4: Transport Layer
802.15
28. 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).
Channel Service Unit/Data Service Unit (CSU/DSU)
OSI Layer 5: Session Layer
Dual-Homed Firewall
Kernel Proxy Firewall
29. Type of cable that carries data as light waves - expensive - can transmit data at high speeds - difficult to tap into - and is resistant to EMI. Most secure cabling option - but vulnerable to dispersion.
Iterated Association
802.11a
Screened Host Firewall
Fiber-optic Cables
30. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
OSI Layer 6: Presentation
UDP
Subnetting
Fiber Distributed Data Interface (FDDI)
31. 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.
IGMP
High Level Data Link Control (HLDC)
Router
Synchronous Communication
32. 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.
Synchronous Optical Networks (SONETS)
Layer 2 Tunneling Protocol (L2TP)
Point-To-Point Tunneling Protocol (PPTP)
Point-To-Point (PPP)
33. This network technology determines which system will send data based on which one has the token.
UDP
Direct Sequence Spread Spectrum (DSSS)
Token Passing
Circuit Level Proxy Firewall
34. Type of cabling problem signals from one wire crossing over to another wire.
Ring Topology
802.11i
UDP
Crosstalk
35. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
Shared Key Authentication (SKA)
Bridge
Synchronous Communication
10baseT
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.
Layer 2 Tunneling Protocol (L2TP)
OSI Layer 4: Transport Layer
Wireless Application Protocol (WAP)
Dynamic Packet Filtering
37. Network cabling that is placed in these types of areas must meet a specific fire rating. These cables typically have a jacked cover made of fluoropolymers.
ThickNet - aka 10base5.
Plenum-rated Cables
Commonly used in logical bus - Ethernet - token ring.
Packet Switching
38. New variant to traditional email spam on VoIP networks.
Layers in the TCP/IP Model
ThickNet - aka 10base5.
T3
Spam over Internet Telephony (SPIT)
39. SMTP server that is configured for sending email from any source to and destination.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
OSI Layer 3: Network Layer
High Level Data Link Control (HLDC)
Open Relay
40. Identifys a WLAN. Can be used to segment environments into different WLANS.
Open Relay
Service Set ID (SSID)
TCP
Challenge Handshake Authentication Protocol (CHAP)
41. 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.
Screened Sub-Net
Star Topology
OSI Layer 2: Data Link Layer
Frame Relay
42. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
DNS (Domain Name System)
Metropolitan Area Network (MAN)
Commonly used in logical bus - Ethernet - token ring.
Multilevel Switching
43. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Open Relay
OSI Layer 7: Application
Wireless Application Protocol (WAP)
Cable Modem
44. 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).
Reverse Address Resolution Protocol (RARP )
Open System Authentication (OSA)
Multilevel Switching
Open Relay
45. 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
Ethernet (802.3)
Wired Equivalent Privacy (WEP)
Private Branch Exchange (PBX)
Asynchronous Communication
46. 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)
Token Passing
Router
IPSec
47. 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 3: Network Layer
TCP
Layer 2 Tunneling Protocol (L2TP)
802.11b
48. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
TCP
Classless inter-domain routing (CIDR)
Bus Topology
Bluejacking
49. 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
OSI Layer 6: Presentation
Extensible Authentication Protocol (EAP)
Switch
Ring Topology
50. 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
Point-To-Point (PPP)
Direct Sequence Spread Spectrum (DSSS)
Permanent Virtual Circuit (PVC)
OSI Layer 2: Data Link Layer