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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. 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.
Frame Relay
DNS (Domain Name System)
Network Address Translator (NAT)
SPIM
2. Older LAN implementation that uses a token-passing technology. Can send a beacon frame to indicate that a certain computer is failing and its neighbors should reconfigure and work around the detected fault.
IPSec
Token Ring (802.5)
Application Proxy vs. Circuit Level
Multistation Access Unit (MAU)
3. Encapsulation protocol for telecommunication connections. Replaced SLIP and is ideal for connection different types of devices over serial lines.
Point-To-Point (PPP)
Iterated Association
Screened Sub-Net
Plenum-rated Cables
4. 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.
Blue Boxing
Port Numbers
Wired Equivalent Privacy (WEP)
802.11i
5. Set of rules that dictates how computer communicate over networks.
Definition of Protocol
T3
Direct Sequence Spread Spectrum (DSSS)
Temporal Key Integrity Protocol (TKIP)
6. 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).
Application Proxy Firewall
Layers in the OSI Model
Remote Access Servers
IPSec
7. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Ethernet (802.3)
Commonly used in FDDI.
Private Branch Exchange (PBX)
Fiber Distributed Data Interface (FDDI)
8. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Ring Topology
Service Set ID (SSID)
Wired Equivalent Privacy (WEP)
OSI Layer 4: Transport Layer
9. 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.
Blue Boxing
Cable Modem
Asynchronous Transfer Mode (ATM)
Private Branch Exchange (PBX)
10. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Commonly used in Internet.
Extensible Authentication Protocol (EAP)
Service Set ID (SSID)
Noise
11. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Frame Relay
Stateful Firewall
OSI Layer 7: Application
Remote Access Servers
12. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Point-To-Point (PPP)
Bus Topology
ThinNet - aka 10base2
Packet Filtering Firewall
13. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Layer 2 Tunneling Protocol (L2TP)
Committed Information Rate (CIR)
Channel Service Unit/Data Service Unit (CSU/DSU)
Network Address Translator (NAT)
14. Standard that outlines wireless personal area network (WPAN) technologies.
Session Initiation Protocol (SIP)
Isochronous Communication Processes
802.15
Temporal Key Integrity Protocol (TKIP)
15. Type of network device that is the simplest type of connectivity because it only repeats and amplifies electric signals between cable segments. Works at the physical layer.
Repeaters
CBC-MAC Protocol (CCMP)
Synchronous Optical Networks (SONETS)
Switch
16. 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.
Twisted Pair Cables
Star Topology
Commonly used in Ethernet.
Spam over Internet Telephony (SPIT)
17. Wireless communication that applies sub-bits to a message (chips) and the receiver uses the chips to re-assemble the message based on the chipping code. It uses all available bandwidth - high throughput of 11Mbps.
Bus Topology
Direct Sequence Spread Spectrum (DSSS)
Multilevel Switching
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
18. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
UDP
Isochronous Communication Processes
Permanent Virtual Circuit (PVC)
Proxy Firewall Strengths
19. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
T1
Point-To-Point (PPP)
Classless inter-domain routing (CIDR)
ThickNet - aka 10base5.
20. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Serial Line Internet Protocol (SLIP)
ThinNet - aka 10base2
Dual-Homed Firewall
Remote Access Servers
21. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Commonly used in logical bus - Ethernet - token ring.
802.11
CBC-MAC Protocol (CCMP)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
22. Type of cable where STP and UTP (shielded and unshielded) cables are the most popular - cheapest - and easiest to work with. However - easiest to tap into - have cross talk issues - and are vulnerable to electromagnetic interference (EMI).
Twisted Pair Cables
Open System Authentication (OSA)
Serial Line Internet Protocol (SLIP)
T1
23. 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.
Fiber-optic Cables
TCP
Plenum-rated Cables
Packet Filtering Firewall
24. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
802.11a
Mesh Topology
Synchronous Data Link Control (SDLC)
Full-Duplex
25. This network technology determines which system will send data based on which one has the token.
Token Passing
Proxy Firewall
High Level Data Link Control (HLDC)
Point-To-Point Tunneling Protocol (PPTP)
26. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Dynamic Packet Filtering
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Full-Duplex
Direct Sequence Spread Spectrum (DSSS)
27. 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.
Permanent Virtual Circuit (PVC)
Frame Relay
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
OSI Layer 4: Transport Layer
28. Protocol where all computers compete for the shard network cable - listen to learn when they can transmit data - susceptible to data collisions. Used by Ethernet.
Point-To-Point (PPP)
OSI Layer 4: Transport Layer
Frame Relay
Carrier sense multiple access with collision detection (CSMA/CD)
29. Wireless standard that will improve security of wireless communication
ThinNet - aka 10base2
Fiber Distributed Data Interface (FDDI)
Fiber-optic Cables
802.11i
30. Malware attack that sends commands inside of an ICMP packet.
Frequency Hopping Spread Spectrum (FHSS)
VoIP
Loki Attack
Cable Modem
31. 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.
Mesh Topology
Isochronous Communication Processes
Extensible Authentication Protocol (EAP)
Session Initiation Protocol (SIP)
32. Strengths of a type of firewall: application independence - high performance - and scalability. Weaknesses include low security - no protection above the network layer.
Channel Service Unit/Data Service Unit (CSU/DSU)
Commonly used in FDDI.
Fiber-optic Cables
Packet Filtering Firewall
33. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Subnetting
UDP
SPIM
Full-Duplex
34. 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.
Temporal Key Integrity Protocol (TKIP)
Packet Filtering Firewall
Wired Equivalent Privacy (WEP)
VLAN
35. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Temporal Key Integrity Protocol (TKIP)
OSI Layer 7: Application
Commonly used in FDDI.
Digital Subscriber Line (DSL)
36. Communication devices that determine synchronization scheme before data transmission.
Frequency Hopping Spread Spectrum (FHSS)
Iterated Association
Synchronous Communication
Challenge Handshake Authentication Protocol (CHAP)
37. 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.
Circuit Switching
Virtual Private Network (VPN)
Point-To-Point (PPP)
Bastion Host
38. 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.
CBC-MAC Protocol (CCMP)
SPIM
OSI Layer 5: Session Layer
Wireless Application Protocol (WAP)
39. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Classless inter-domain routing (CIDR)
Layers in the TCP/IP Model
Remote Access Servers
Frequency Hopping Spread Spectrum (FHSS)
40. Identifys a WLAN. Can be used to segment environments into different WLANS.
802.16
Service Set ID (SSID)
Commonly used in FDDI.
Subnetting
41. 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.
Wired Equivalent Privacy (WEP)
Temporal Key Integrity Protocol (TKIP)
802.11b
OSI Layer 5: Session Layer
42. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
10baseT
Token Ring (802.5)
Integrated Services Digital Network (ISDN)
Subnetting
43. Type of network layout that is a large geographical region connecting more that one LAN.
Password Authentication Protocol (PAP)
Dedicated Links
Wide Area Network (WAN)
Stateful Firewall
44. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Source Routing
Twisted Pair Cables
Iterated Association
Stateful Firewall
45. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Wired Equivalent Privacy (WEP)
VoIP
Synchronous Communication
10baseT
46. 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
Switch
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Pulse Code Modulation (PCM)
Switched Virtual Circuit (SVC)
47. Problems: Requires more expense in cabling and extra effort to track down cable faults.
ThickNet - aka 10base5.
Mesh Topology
Integrated Services Digital Network (ISDN)
VoIP
48. 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
Private Branch Exchange (PBX)
Shared Key Authentication (SKA)
TCP
Committed Information Rate (CIR)
49. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
TCP
ThickNet - aka 10base5.
CBC-MAC Protocol (CCMP)
Screened Host Firewall
50. 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.
Bluejacking
Point-To-Point Tunneling Protocol (PPTP)
802.11a
Bastion Host