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CISSP Telecom And Network Security
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Instructions:
Answer 50 questions in 15 minutes.
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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 switch that uses tags that are assigned to each destination network. The network compares the tag with its tag information base - appends the appropriate tag - and forwards to the next switch. This increases the transmission speed - allows la
Port Numbers
Synchronous Data Link Control (SDLC)
Multi-protocol Label Switching
Reverse Address Resolution Protocol (RARP )
2. 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
DNS (Domain Name System)
OSI Layer 2: Data Link Layer
Permanent Virtual Circuit (PVC)
Circuit Switching
3. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
Simplex: One direction.
IPv6
802.11b
High Level Data Link Control (HLDC)
4. Type of network layout that is a large geographical region connecting more that one LAN.
Commonly used in FDDI.
802.11
Bus Topology
Wide Area Network (WAN)
5. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
Bus Topology
TCP
Commonly used in logical bus - Ethernet - token ring.
Point-To-Point (PPP)
6. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
Frequency Hopping Spread Spectrum (FHSS)
OSI Data encapsulation
Coaxial Cables
Point-To-Point Tunneling Protocol (PPTP)
7. 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.
Definition of Protocol
Simplex: One direction.
T3
Circuit Switching
8. Altering an ARP table so an IP address is mapped to a different MAC address. Results in traffic being routed to an attacker's computer.
Virtual Private Network (VPN)
ARP Poisoning
TCP
ARP (Address Resolution Protocol)
9. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
Distributed Environment Challenge
DNS (Domain Name System)
T3
Pulse Code Modulation (PCM)
10. 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.
Direct Sequence Spread Spectrum (DSSS)
Synchronous Communication
ARP (Address Resolution Protocol)
DOS attacks from flooding
11. In a token ring network - each computer is connected to this - which acts as a central hub.
Multistation Access Unit (MAU)
Asynchronous Transfer Mode (ATM)
Point-To-Point Tunneling Protocol (PPTP)
Commonly used in FDDI.
12. Type of wireless authentication where the device does not need to provide a key for authentication. Usually - only the SSID is required and plaintext transmission occurs.
Bridge
Circuit Level Proxy Firewall
802.15
Open System Authentication (OSA)
13. Strengths of a type of firewall: Better security than packet filtering. Looks at all info in the packet - up to the application layer. Breaks the connection between trusted and untrusted systems. Weaknesses include limited number of applications supp
OSI Data encapsulation
Mesh Topology
IPv6
Proxy Firewall Strengths
14. Identifys a WLAN. Can be used to segment environments into different WLANS.
Service Set ID (SSID)
Dynamic Packet Filtering
Wide Area Network (WAN)
CBC-MAC Protocol (CCMP)
15. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Iterated Association
CBC-MAC Protocol (CCMP)
Crosstalk
Stateful Firewall
16. Protocol that translates a MAC address into an IP address.
Reverse Address Resolution Protocol (RARP )
Loki Attack
Frequency Hopping Spread Spectrum (FHSS)
802.11a
17. Type of cabling problem signals from one wire crossing over to another wire.
Crosstalk
Open Relay
Star Topology
Switched Virtual Circuit (SVC)
18. Type of firewall that is a proxy-based firewall solution. It is circuit-based and does not provide any application-based proxies.
SOCKS Firewall
Noise
ThinNet - aka 10base2
T1
19. 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.
OSI Layer 7: Application
Dual-Homed Firewall
Port Numbers
Proxy Firewall
20. 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.
Commonly used in Ethernet.
Committed Information Rate (CIR)
OSI Layer 1: Physical
Screened Host Firewall
21. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
Tree Topology
Frame Relay
Layers in the TCP/IP Model
ThinNet - aka 10base2
22. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
FDDI-2
Full-Duplex
802.16
Virtual Private Network (VPN)
23. OSI layer 2 Sub-layers. The first provides a standard interface for the network protocol being used. The second provides a standard interface for the physical layer protocol being used.
Crosstalk
Committed Information Rate (CIR)
LLC (Logical Link Control - 802.2)
Packet Switching
24. Protocol that works at the network layer and informs hosts - routers - and devices of network or computer problems. It is the major component of the ping utility.
Attenuation
Definition of Protocol
ICMP (Internet Control Message Protocol)
OSI Layer 7: Application
25. Malware attack that sends commands inside of an ICMP packet.
Asynchronous Transfer Mode (ATM)
Shared Key Authentication (SKA)
Loki Attack
Multilevel Switching
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.
Proxy Firewall Strengths
X.25
Point-To-Point Tunneling Protocol (PPTP)
VoIP
27. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Challenge Handshake Authentication Protocol (CHAP)
Dual-Homed Firewall
OSI Layer 7: Application
VoIP
28. 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.
Loki Attack
Twisted Pair Cables
Carrier sense multiple access with collision detection (CSMA/CD)
Application Proxy vs. Circuit Level
29. 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
Wired Equivalent Privacy (WEP)
Router
Switched Virtual Circuit (SVC)
30. 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.
ARP Poisoning
Twisted Pair Cables
Fiber-optic Cables
Point-To-Point (PPP)
31. Network segment name for a DMZ created by two physical firewalls.
Stateful Firewall
Frequency Hopping Spread Spectrum (FHSS)
ARP Poisoning
Screened Sub-Net
32. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Ring Topology
Network Address Translator (NAT)
Commonly used in Ethernet.
Noise
33. 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.
Direct Sequence Spread Spectrum (DSSS)
Isochronous Communication Processes
Noise
Password Authentication Protocol (PAP)
34. 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.
Frame Relay
OSI Layer 3: Network Layer
Full-Duplex
Dedicated Links
35. Type of firewall that lies between the perimeter router and and LAN.
Channel Service Unit/Data Service Unit (CSU/DSU)
DNS (Domain Name System)
Layer 2 Tunneling Protocol (L2TP)
Screened Host Firewall
36. 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.
Multi-protocol Label Switching
Bridge
Stateful Firewall
CBC-MAC Protocol (CCMP)
37. Dynamically builds ACL's to allow internal systems to communicate with external systems. Once the connection is finished - the ACL is removed from the list. 4th generation firewall.
Dynamic Packet Filtering
Service Set ID (SSID)
Trunk Lines
Application Proxy vs. Circuit Level
38. 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.
Trunk Lines
X.25
DNS (Domain Name System)
Proxy Firewall
39. 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.
UDP
High Level Data Link Control (HLDC)
10baseT
DOS attacks from flooding
40. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Bluejacking
T1
Remote Access Servers
Layers in the TCP/IP Model
41. Type of authentication protocol that provides a framework to enable may types of authentication techniques to be used during PPP connections. It extends the possibilities to one-time passwords - token cards - biometrics - Kerberos - and digital certi
Commonly used in Internet.
Proxy Firewall
Trunk Lines
Extensible Authentication Protocol (EAP)
42. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Open Relay
Serial Line Internet Protocol (SLIP)
Wireless Application Protocol (WAP)
Tree Topology
43. 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.
Commonly used in Internet.
Router
Open System Authentication (OSA)
Dedicated Links
44. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
Screened Host Firewall
802.11i
Layers in the OSI Model
802.11a
45. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Dual-Homed Firewall
Integrated Services Digital Network (ISDN)
Asynchronous Communication
Commonly used in FDDI.
46. Type of wireless security standard that uses AES in CBC mode.
CBC-MAC Protocol (CCMP)
Token Ring (802.5)
Mesh Topology
Iterated Association
47. 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.
ThinNet - aka 10base2
Repeaters
Open Relay
Packet Switching
48. Type of topology that uses a bus that does not have a one linear cable - but instead uses branches of cables. Commonly used in Ethernet.
Network Address Translator (NAT)
Crosstalk
Tree Topology
Simplex: One direction.
49. 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.
Mesh Topology
OSI Layer 6: Presentation
Star Topology
T3
50. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Source Routing
Private Branch Exchange (PBX)
UDP
ThinNet - aka 10base2
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