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CISSP Telecom And Network Security
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cissp
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. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
Commonly used in Internet.
DNS (Domain Name System)
T1
Proxy Firewall Strengths
2. 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).
Point-To-Point Tunneling Protocol (PPTP)
Synchronous Communication
Wireless Application Protocol (WAP)
Channel Service Unit/Data Service Unit (CSU/DSU)
3. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Point-To-Point Tunneling Protocol (PPTP)
UDP
Wide Area Network (WAN)
Extensible Authentication Protocol (EAP)
4. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
Dynamic Packet Filtering
OSI Layer 7: Application
Bus Topology
Remote Access Servers
5. 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.
T1
Private Branch Exchange (PBX)
X.25
Virtual Private Network (VPN)
6. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
Bastion Host
802.11b
Spam over Internet Telephony (SPIT)
Switch
7. 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
Kernel Proxy Firewall
Extensible Authentication Protocol (EAP)
Packet Switching
VLAN
8. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Ethernet (802.3)
Token Passing
Session Initiation Protocol (SIP)
Cable Modem
9. Type of firewall that can be compromised if the OS does not have packet forwarding or routing turned off.
Twisted Pair Cables
Dual-Homed Firewall
Circuit Level Proxy Firewall
Bluejacking
10. Both directions - both applications can send information at a time. Session Layer Communication Modes
FDDI-2
Session Initiation Protocol (SIP)
Full-Duplex
ThickNet - aka 10base5.
11. 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.
Serial Line Internet Protocol (SLIP)
Blue Boxing
Layers in the OSI Model
Synchronous Optical Networks (SONETS)
12. 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.
VLAN
Distributed Environment Challenge
OSI Layer 7: Application
802.11b
13. Set of rules that dictates how computer communicate over networks.
Bridge
Integrated Services Digital Network (ISDN)
FDDI-2
Definition of Protocol
14. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Password Authentication Protocol (PAP)
Challenge Handshake Authentication Protocol (CHAP)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
IPv6
15. 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.
Permanent Virtual Circuit (PVC)
Spam over Internet Telephony (SPIT)
Isochronous Communication Processes
Distributed Environment Challenge
16. 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.
T1
Source Routing
Router
Ring Topology
17. 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.
Multilevel Switching
Ring Topology
Stateful Firewall
Crosstalk
18. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
OSI Layer 2: Data Link Layer
Iterated Association
Remote Access Servers
Star Topology
19. 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.
Tree Topology
Definition of Protocol
Session Initiation Protocol (SIP)
Reverse Address Resolution Protocol (RARP )
20. 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.
Open System Authentication (OSA)
Direct Sequence Spread Spectrum (DSSS)
Proxy Firewall
10baseT
21. 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.
OSI Layer 6: Presentation
Repeaters
Layers in the OSI Model
Commonly used in logical bus - Ethernet - token ring.
22. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
ARP (Address Resolution Protocol)
IGMP
ThickNet - aka 10base5.
Switch
23. 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
Serial Line Internet Protocol (SLIP)
Half-Duplex
Frame Relay
Packet Switching
24. Network segment name for a DMZ created by two physical firewalls.
UDP
Subnetting
Screened Sub-Net
OSI Layer 2: Data Link Layer
25. 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.
Packet Filtering Firewall
Channel Service Unit/Data Service Unit (CSU/DSU)
Circuit Switching
Dual-Homed Firewall
26. Type of firewall that looks at header information to make decisions on whether a packet is deemed acceptable. This type does not look as deep within the packet as an application level proxy - runs at the session layer.
Circuit Level Proxy Firewall
TCP
T3
Shared Key Authentication (SKA)
27. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Bastion Host
Screened Sub-Net
T3
Token Passing
28. Transmits high speed bandwidth over phone lines. Provides data rates up to 52 Mpbs using line of 1000 feet or less. Must be within 2.5 miles of a central office.
Digital Subscriber Line (DSL)
Mesh Topology
ARP Poisoning
Session Initiation Protocol (SIP)
29. 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.
Frequency Hopping Spread Spectrum (FHSS)
Ethernet (802.3)
Point-To-Point Tunneling Protocol (PPTP)
Loki Attack
30. 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.
Wired Equivalent Privacy (WEP)
Multilevel Switching
Bus Topology
Digital Subscriber Line (DSL)
31. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
ARP Poisoning
Layers in the TCP/IP Model
Coaxial Cables
Source Routing
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.
Dedicated Links
Distributed Environment Challenge
T3
Asynchronous Transfer Mode (ATM)
33. Type of topology where computers all are connected to each other - which provides redundancy.
Half-Duplex
Commonly used in Internet.
Subnetting
Private Branch Exchange (PBX)
34. Type of ethernet implementation that uses twisted-pair copper wiring and transmits at 100Mbps.
Wide Area Network (WAN)
Digital Subscriber Line (DSL)
Password Authentication Protocol (PAP)
10baseT
35. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Classless inter-domain routing (CIDR)
TCP
Noise
DOS attacks from flooding
36. 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.
VLAN
ICMP (Internet Control Message Protocol)
Stateful Firewall
10baseT
37. 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).
Service Set ID (SSID)
IPv6
Packet Filtering Firewall
IPSec
38. Type of network layout that is a large geographical region connecting more that one LAN.
Loki Attack
Extensible Authentication Protocol (EAP)
Wide Area Network (WAN)
Noise
39. 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).
OSI Layer 3: Network Layer
Reverse Address Resolution Protocol (RARP )
Multilevel Switching
ARP Poisoning
40. Standard that addresses wireless MAN technologies.
802.16
Source Routing
Direct Sequence Spread Spectrum (DSSS)
LLC (Logical Link Control - 802.2)
41. The process of simulating a 2600Hz frequency tone - which allowed attackers to gain free long distance phone service.
Blue Boxing
Bridge
Frame Relay
Reverse Address Resolution Protocol (RARP )
42. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
Spam over Internet Telephony (SPIT)
Router
802.11
Circuit Level Proxy Firewall
43. 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
VoIP
OSI Layer 3: Network Layer
Fiber-optic Cables
Point-To-Point (PPP)
44. 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.
LLC (Logical Link Control - 802.2)
802.11a
Packet Switching
OSI Layer 7: Application
45. 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.
Mesh Topology
Circuit Switching
Application Proxy vs. Circuit Level
Open System Authentication (OSA)
46. Malware attack that sends commands inside of an ICMP packet.
Noise
Loki Attack
802.16
Layers in the TCP/IP Model
47. 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
Classless inter-domain routing (CIDR)
Service Set ID (SSID)
Application Proxy Firewall
48. 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.
Router
DNS (Domain Name System)
Plenum-rated Cables
Wireless Application Protocol (WAP)
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
LLC (Logical Link Control - 802.2)
Switch
Open Relay
Private Branch Exchange (PBX)
50. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Plenum-rated Cables
Remote Access Servers
Layers in the OSI Model
Channel Service Unit/Data Service Unit (CSU/DSU)
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