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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: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Port Numbers
Kernel Proxy Firewall
Ring Topology
VoIP
2. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
IPSec
Permanent Virtual Circuit (PVC)
Bluejacking
Dynamic Packet Filtering
3. 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
Proxy Firewall Strengths
Service Set ID (SSID)
TCP
4. 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.
Bridge
Asynchronous Communication
Repeaters
Private Branch Exchange (PBX)
5. SMTP server that is configured for sending email from any source to and destination.
Ring Topology
Definition of Protocol
Open Relay
Circuit Level Proxy Firewall
6. Type of network layout that is a large geographical region connecting more that one LAN.
Shared Key Authentication (SKA)
Wide Area Network (WAN)
Ethernet (802.3)
Dedicated Links
7. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Switched Virtual Circuit (SVC)
High Level Data Link Control (HLDC)
Commonly used in FDDI.
Tree Topology
8. 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.
SPIM
Isochronous Communication Processes
Loki Attack
OSI Layer 7: Application
9. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
OSI Layer 4: Transport Layer
802.11i
VoIP
Layer 2 Tunneling Protocol (L2TP)
10. 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.
Application Proxy vs. Circuit Level
Permanent Virtual Circuit (PVC)
Fiber Distributed Data Interface (FDDI)
Application Proxy Firewall
11. 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.
10baseT
Layer 2 Tunneling Protocol (L2TP)
Metropolitan Area Network (MAN)
TCP
12. 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.
Port Numbers
Metropolitan Area Network (MAN)
Digital Subscriber Line (DSL)
TCP
13. 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)
TCP
Switched Virtual Circuit (SVC)
Packet Filtering Firewall
14. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
Definition of Protocol
Twisted Pair Cables
SOCKS Firewall
802.11
15. 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)
Token Ring (802.5)
VLAN
Shared Key Authentication (SKA)
16. 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.
Permanent Virtual Circuit (PVC)
Wireless Application Protocol (WAP)
Pulse Code Modulation (PCM)
Asynchronous Communication
17. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Open Relay
UDP
Token Passing
Committed Information Rate (CIR)
18. 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.
Virtual Private Network (VPN)
DNS (Domain Name System)
OSI Layer 6: Presentation
ThinNet - aka 10base2
19. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Coaxial Cables
Application Proxy Firewall
T1
Attenuation
20. Type of network layout that separates and group computers logically.
FDDI-2
VLAN
Commonly used in Internet.
OSI Layer 7: Application
21. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Commonly used in logical bus - Ethernet - token ring.
OSI Layer 7: Application
Frame Relay
Service Set ID (SSID)
22. 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
Spam over Internet Telephony (SPIT)
Synchronous Optical Networks (SONETS)
SOCKS Firewall
23. 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.
Integrated Services Digital Network (ISDN)
Bridge
Commonly used in Internet.
OSI Layer 5: Session Layer
24. Network segment name for a DMZ created by two physical firewalls.
Commonly used in logical bus - Ethernet - token ring.
Screened Sub-Net
Committed Information Rate (CIR)
Open Relay
25. 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)
Screened Host Firewall
Synchronous Optical Networks (SONETS)
Token Passing
26. 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.
Asynchronous Transfer Mode (ATM)
Permanent Virtual Circuit (PVC)
OSI Layer 7: Application
802.16
27. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
DNS (Domain Name System)
Pulse Code Modulation (PCM)
Metropolitan Area Network (MAN)
OSI Layer 7: Application
28. 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.
Asynchronous Communication
Shared Key Authentication (SKA)
Ethernet (802.3)
802.11i
29. Malware attack that sends commands inside of an ICMP packet.
Simplex: One direction.
Multi-protocol Label Switching
Ring Topology
Loki Attack
30. 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.
Integrated Services Digital Network (ISDN)
Simplex: One direction.
Point-To-Point (PPP)
Bus Topology
31. 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.
Bluejacking
Screened Host Firewall
LLC (Logical Link Control - 802.2)
Router
32. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
802.11
OSI Layer 2: Data Link Layer
Synchronous Data Link Control (SDLC)
Direct Sequence Spread Spectrum (DSSS)
33. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
802.11i
Bluejacking
Point-To-Point (PPP)
OSI Data encapsulation
34. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Wired Equivalent Privacy (WEP)
802.15
Spread Spectrum
T3
35. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Shared Key Authentication (SKA)
Repeaters
Packet Filtering Firewall
VoIP
36. 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.
OSI Layer 7: Application
Trunk Lines
Ethernet (802.3)
Point-To-Point (PPP)
37. Both directions - both applications can send information at a time. Session Layer Communication Modes
Circuit Level Proxy Firewall
Blue Boxing
Frequency Hopping Spread Spectrum (FHSS)
Full-Duplex
38. Type of cabling problem signals from one wire crossing over to another wire.
Bluejacking
Layers in the OSI Model
Switch
Crosstalk
39. 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.
ARP (Address Resolution Protocol)
Token Passing
Point-To-Point Tunneling Protocol (PPTP)
Asynchronous Communication
40. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
T1
DNS (Domain Name System)
Switched Virtual Circuit (SVC)
UDP
41. Problems: Central device is a single point of failure.
ARP (Address Resolution Protocol)
Star Topology
Application Proxy Firewall
SOCKS Firewall
42. Type of wireless security standard that uses AES in CBC mode.
Bridge
Iterated Association
CBC-MAC Protocol (CCMP)
Private Branch Exchange (PBX)
43. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Classless inter-domain routing (CIDR)
Dual-Homed Firewall
Commonly used in Ethernet.
IPSec
44. Standard that outlines wireless personal area network (WPAN) technologies.
Proxy Firewall
802.15
Mesh Topology
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
45. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
TCP
ARP (Address Resolution Protocol)
Multi-protocol Label Switching
Temporal Key Integrity Protocol (TKIP)
46. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
Fiber-optic Cables
Password Authentication Protocol (PAP)
Stateful Firewall
Committed Information Rate (CIR)
47. Spam over IM
Service Set ID (SSID)
Classless inter-domain routing (CIDR)
OSI Layer 1: Physical
SPIM
48. 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.
802.11a
Blue Boxing
OSI Layer 4: Transport Layer
Wired Equivalent Privacy (WEP)
49. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Remote Access Servers
802.16
Password Authentication Protocol (PAP)
Simplex: One direction.
50. In a token ring network - each computer is connected to this - which acts as a central hub.
ThickNet - aka 10base5.
Multistation Access Unit (MAU)
Packet Filtering Firewall
Distributed Environment Challenge