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Test your basic knowledge |
CISSP Telecom And Network Security
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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 wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Shared Key Authentication (SKA)
Wide Area Network (WAN)
Classless inter-domain routing (CIDR)
Full-Duplex
2. 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.
ThickNet - aka 10base5.
Metropolitan Area Network (MAN)
ARP Poisoning
Wired Equivalent Privacy (WEP)
3. 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.
802.11
Circuit Switching
Noise
Subnetting
4. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
Blue Boxing
10baseT
Port Numbers
Asynchronous Communication
5. 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.
Private Branch Exchange (PBX)
Synchronous Data Link Control (SDLC)
High Level Data Link Control (HLDC)
Remote Access Servers
6. 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.
Channel Service Unit/Data Service Unit (CSU/DSU)
Direct Sequence Spread Spectrum (DSSS)
Carrier sense multiple access with collision detection (CSMA/CD)
Layer 2 Tunneling Protocol (L2TP)
7. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
802.11
Packet Switching
Wired Equivalent Privacy (WEP)
Blue Boxing
8. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Twisted Pair Cables
Fiber-optic Cables
ARP (Address Resolution Protocol)
Iterated Association
9. Type of topology where computers all are connected to each other - which provides redundancy.
ARP Poisoning
Commonly used in Internet.
Source Routing
Open Relay
10. 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.
VLAN
Commonly used in logical bus - Ethernet - token ring.
Integrated Services Digital Network (ISDN)
Simplex: One direction.
11. Spam over IM
IPSec
SPIM
Ring Topology
CBC-MAC Protocol (CCMP)
12. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Serial Line Internet Protocol (SLIP)
Classless inter-domain routing (CIDR)
Bus Topology
Temporal Key Integrity Protocol (TKIP)
13. 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.
OSI Data encapsulation
X.25
Session Initiation Protocol (SIP)
OSI Layer 3: Network Layer
14. Wireless standard that will improve security of wireless communication
Blue Boxing
802.11i
CBC-MAC Protocol (CCMP)
Carrier sense multiple access with collision detection (CSMA/CD)
15. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Subnetting
Synchronous Data Link Control (SDLC)
IPv6
Commonly used in logical bus - Ethernet - token ring.
16. Protocol that translates a MAC address into an IP address.
OSI Layer 4: Transport Layer
Reverse Address Resolution Protocol (RARP )
Carrier sense multiple access with collision detection (CSMA/CD)
Bus Topology
17. 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.
Packet Filtering Firewall
T3
Trunk Lines
OSI Layer 7: Application
18. 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.
Router
Point-To-Point Tunneling Protocol (PPTP)
DOS attacks from flooding
Frame Relay
19. As they travel down the OSI model on the source computer - each layer adds its own information so the corresponding layer on the destination machine knows how to process the data.
Application Proxy vs. Circuit Level
Virtual Private Network (VPN)
UDP
OSI Data encapsulation
20. 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.
Cable Modem
High Level Data Link Control (HLDC)
Loki Attack
Plenum-rated Cables
21. 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.
Password Authentication Protocol (PAP)
Token Passing
Port Numbers
802.11b
22. Type of wireless security standard that uses AES in CBC mode.
Point-To-Point Tunneling Protocol (PPTP)
CBC-MAC Protocol (CCMP)
DNS (Domain Name System)
Distributed Environment Challenge
23. Malware attack that sends commands inside of an ICMP packet.
Tree Topology
Password Authentication Protocol (PAP)
ARP Poisoning
Loki Attack
24. Standard that outlines wireless personal area network (WPAN) technologies.
Iterated Association
Loki Attack
802.15
802.11a
25. Type of firewall that uses a proxy for each service and can understand and make decisions on the protocols used and the commands within those protocols - runs at the application layer.
Serial Line Internet Protocol (SLIP)
Circuit Level Proxy Firewall
Application Proxy Firewall
Classless inter-domain routing (CIDR)
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.
Mesh Topology
Point-To-Point Tunneling Protocol (PPTP)
T3
Attenuation
27. New variant to traditional email spam on VoIP networks.
Cable Modem
Attenuation
Half-Duplex
Spam over Internet Telephony (SPIT)
28. 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.
SPIM
Packet Filtering Firewall
OSI Layer 5: Session Layer
Packet Switching
29. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Commonly used in Internet.
Synchronous Data Link Control (SDLC)
Coaxial Cables
Channel Service Unit/Data Service Unit (CSU/DSU)
30. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Wireless Application Protocol (WAP)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Crosstalk
Loki Attack
31. Network segment name for a DMZ created by two physical firewalls.
Pulse Code Modulation (PCM)
Screened Sub-Net
Half-Duplex
Asynchronous Communication
32. 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 Optical Networks (SONETS)
Asynchronous Communication
Dedicated Links
Screened Host Firewall
33. 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.
CBC-MAC Protocol (CCMP)
OSI Layer 5: Session Layer
Multilevel Switching
Cable Modem
34. Protocol for allowing multi-cast (one to many) communication
Wired Equivalent Privacy (WEP)
Switch
Digital Subscriber Line (DSL)
IGMP
35. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
802.11b
Cable Modem
Attenuation
Layers in the TCP/IP Model
36. Type of cabling problem signals from one wire crossing over to another wire.
Application Proxy Firewall
Crosstalk
SPIM
X.25
37. 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.
Circuit Switching
Synchronous Optical Networks (SONETS)
Bridge
Synchronous Data Link Control (SDLC)
38. Type of network layout that is a large geographical region connecting more that one LAN.
Multilevel Switching
Wide Area Network (WAN)
10baseT
Token Ring (802.5)
39. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Committed Information Rate (CIR)
Commonly used in Internet.
Temporal Key Integrity Protocol (TKIP)
Permanent Virtual Circuit (PVC)
40. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
Bastion Host
SOCKS Firewall
ARP Poisoning
Password Authentication Protocol (PAP)
41. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Trunk Lines
Digital Subscriber Line (DSL)
TCP
Network Address Translator (NAT)
42. Protocol that increases address size from 32 bits to 128 bits
Fiber Distributed Data Interface (FDDI)
FDDI-2
IPv6
Committed Information Rate (CIR)
43. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
T3
OSI Layer 5: Session Layer
Repeaters
Plenum-rated Cables
44. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
Port Numbers
Layers in the TCP/IP Model
Full-Duplex
802.11a
45. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Dynamic Packet Filtering
ThinNet - aka 10base2
Repeaters
Loki Attack
46. Problems: Requires more expense in cabling and extra effort to track down cable faults.
OSI Layer 4: Transport Layer
Screened Host Firewall
Token Ring (802.5)
Mesh Topology
47. 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
Synchronous Data Link Control (SDLC)
DOS attacks from flooding
Open Relay
Packet Switching
48. 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.
Application Proxy vs. Circuit Level
Multi-protocol Label Switching
10baseT
Packet Filtering Firewall
49. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
ThickNet - aka 10base5.
OSI Layer 2: Data Link Layer
Ring Topology
ICMP (Internet Control Message Protocol)
50. Problems: Central device is a single point of failure.
T1
Isochronous Communication Processes
Commonly used in Internet.
Star Topology