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Test your basic knowledge |
CISSP Telecom And Network Security
Start Test
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. 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.
Ethernet (802.3)
Definition of Protocol
T3
802.11b
2. Wireless LAN standard. Variations include 802.11a - b - f - g - and i. Commonly accepts are 802.11b and g.
Shared Key Authentication (SKA)
Star Topology
802.11
Dynamic Packet Filtering
3. OSI layer that has services and protocols required by the user's applications for network functionality. Example protocols include HTTP - SMTP - FTP - Telnet.
OSI Layer 1: Physical
Mesh Topology
Port Numbers
OSI Layer 7: Application
4. Type of cabling problem signals from one wire crossing over to another wire.
X.25
Blue Boxing
Crosstalk
Circuit Level Proxy Firewall
5. If the packet header information is used to determine destinations rather than the routes configured into the router. Packets with this information should be dropped.
Token Passing
Asynchronous Transfer Mode (ATM)
Source Routing
OSI Layer 4: Transport Layer
6. 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.
Virtual Private Network (VPN)
Star Topology
SPIM
Switch
7. Standard that addresses wireless MAN technologies.
OSI Data encapsulation
802.16
Commonly used in Internet.
Integrated Services Digital Network (ISDN)
8. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
ICMP (Internet Control Message Protocol)
802.11b
Iterated Association
Application Proxy Firewall
9. 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.
Source Routing
Isochronous Communication Processes
Fiber-optic Cables
VoIP
10. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
Point-To-Point (PPP)
IGMP
Attenuation
ICMP (Internet Control Message Protocol)
11. A simplified version of X.25 - without the error checking that was done on the network. It handles error checking at the end node - which helps improve speed dramatically.
Frame Relay
802.11a
Router
Bastion Host
12. 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
Synchronous Communication
Screened Sub-Net
Trunk Lines
13. 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.
OSI Layer 2: Data Link Layer
Token Passing
Packet Filtering Firewall
Half-Duplex
14. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
Session Initiation Protocol (SIP)
Spread Spectrum
Asynchronous Communication
Screened Sub-Net
15. 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.
Classless inter-domain routing (CIDR)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Committed Information Rate (CIR)
Metropolitan Area Network (MAN)
16. Protocol that translates a MAC address into an IP address.
Switch
Digital Subscriber Line (DSL)
Reverse Address Resolution Protocol (RARP )
T3
17. 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
Packet Filtering Firewall
Multi-protocol Label Switching
Metropolitan Area Network (MAN)
18. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
VLAN
Fiber-optic Cables
Frame Relay
TCP
19. 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.
OSI Data encapsulation
Wide Area Network (WAN)
ARP Poisoning
Attenuation
20. 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.
Permanent Virtual Circuit (PVC)
OSI Layer 4: Transport Layer
Synchronous Optical Networks (SONETS)
Half-Duplex
21. Spam over IM
SOCKS Firewall
Spread Spectrum
DOS attacks from flooding
SPIM
22. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
OSI Layer 1: Physical
Fiber-optic Cables
Iterated Association
ThinNet - aka 10base2
23. Type of topology where computers all are connected to each other - which provides redundancy.
Commonly used in Internet.
TCP
X.25
Multi-protocol Label Switching
24. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
Proxy Firewall
Circuit Level Proxy Firewall
Bastion Host
FDDI-2
25. 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).
Circuit Switching
Application Proxy vs. Circuit Level
IPSec
Source Routing
26. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Subnetting
Shared Key Authentication (SKA)
Proxy Firewall Strengths
Router
27. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
Kernel Proxy Firewall
ThickNet - aka 10base5.
DNS (Domain Name System)
Multi-protocol Label Switching
28. 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
Packet Filtering Firewall
Extensible Authentication Protocol (EAP)
Synchronous Optical Networks (SONETS)
Temporal Key Integrity Protocol (TKIP)
29. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
802.15
Classless inter-domain routing (CIDR)
Plenum-rated Cables
Bastion Host
30. 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
OSI Layer 3: Network Layer
VLAN
Twisted Pair Cables
Trunk Lines
31. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
T1
DNS (Domain Name System)
Wide Area Network (WAN)
X.25
32. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Packet Filtering Firewall
IPSec
Stateful Firewall
Permanent Virtual Circuit (PVC)
33. This dedicated connection provides 45Mbps of bandwidth over 28 T1 lines and 672 time divided channels.
Extensible Authentication Protocol (EAP)
Stateful Firewall
T3
Bus Topology
34. OSI layer that provides physical connections for transmission and performs the electrical encoding of data. This layer transforms bits to electrical signals. Protocols at this level HSSI (High Speed Serial Interface) - X.21 - EIA/TIA 232 and 449.
Coaxial Cables
CBC-MAC Protocol (CCMP)
OSI Layer 1: Physical
Asynchronous Communication
35. Both directions - only one application can send information at a time
802.11a
Commonly used in Ethernet.
Half-Duplex
Star Topology
36. 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.
IPSec
Password Authentication Protocol (PAP)
LLC (Logical Link Control - 802.2)
X.25
37. Standard that outlines wireless personal area network (WPAN) technologies.
Commonly used in FDDI.
Token Ring (802.5)
802.15
Multistation Access Unit (MAU)
38. A Temporary circuit set up for a single connection. Set up and torn down as they are needed.
Switched Virtual Circuit (SVC)
Point-To-Point Tunneling Protocol (PPTP)
Attenuation
Temporal Key Integrity Protocol (TKIP)
39. Type of firewall that lies between the perimeter router and and LAN.
Ethernet (802.3)
ThinNet - aka 10base2
OSI Data encapsulation
Screened Host Firewall
40. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Commonly used in logical bus - Ethernet - token ring.
UDP
Frequency Hopping Spread Spectrum (FHSS)
Commonly used in Internet.
41. 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.
Extensible Authentication Protocol (EAP)
Private Branch Exchange (PBX)
Frequency Hopping Spread Spectrum (FHSS)
Direct Sequence Spread Spectrum (DSSS)
42. 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.
Port Numbers
OSI Layer 1: Physical
Extensible Authentication Protocol (EAP)
Router
43. 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.
Dedicated Links
Bastion Host
Direct Sequence Spread Spectrum (DSSS)
Circuit Switching
44. 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.
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Layer 2 Tunneling Protocol (L2TP)
ARP (Address Resolution Protocol)
Session Initiation Protocol (SIP)
45. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Bluejacking
Layer 2 Tunneling Protocol (L2TP)
ARP (Address Resolution Protocol)
OSI Layer 3: Network Layer
46. 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.
Circuit Switching
OSI Data encapsulation
VLAN
Multilevel Switching
47. Malware attack that sends commands inside of an ICMP packet.
Multilevel Switching
Circuit Switching
Loki Attack
VoIP
48. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
Tree Topology
Pulse Code Modulation (PCM)
Bluejacking
Dynamic Packet Filtering
49. 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.
Iterated Association
Dedicated Links
Proxy Firewall
Simplex: One direction.
50. 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.
Classless inter-domain routing (CIDR)
802.11a
Commonly used in Ethernet.
Network Address Translator (NAT)