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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. 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).
Multilevel Switching
ICMP (Internet Control Message Protocol)
Direct Sequence Spread Spectrum (DSSS)
Screened Sub-Net
2. Spam over IM
SPIM
Layers in the OSI Model
Commonly used in logical bus - Ethernet - token ring.
Switch
3. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Application Proxy vs. Circuit Level
IPSec
Remote Access Servers
T1
4. 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.
Service Set ID (SSID)
ARP Poisoning
Switch
SOCKS Firewall
5. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Commonly used in FDDI.
Packet Filtering Firewall
T1
VLAN
6. Protocol for allowing multi-cast (one to many) communication
Twisted Pair Cables
Open Relay
Multilevel Switching
IGMP
7. 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.
OSI Layer 5: Session Layer
Open System Authentication (OSA)
Classless inter-domain routing (CIDR)
Cable Modem
8. 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.
Wide Area Network (WAN)
ThickNet - aka 10base5.
Mesh Topology
OSI Layer 1: Physical
9. Type of LAN and MAN technology - usually used for backbones - that uses token-passing technology and has redundant rings in case the primary ring goes down.
Wireless Application Protocol (WAP)
Fiber Distributed Data Interface (FDDI)
Wide Area Network (WAN)
DNS (Domain Name System)
10. 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.
ThickNet - aka 10base5.
802.16
ThinNet - aka 10base2
Distributed Environment Challenge
11. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Cable Modem
802.11b
ICMP (Internet Control Message Protocol)
Classless inter-domain routing (CIDR)
12. 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.
OSI Layer 7: Application
Temporal Key Integrity Protocol (TKIP)
Bastion Host
Application Proxy vs. Circuit Level
13. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
Frame Relay
T1
Multistation Access Unit (MAU)
Half-Duplex
14. Type of host that is locked down - hardened - system. Systems installed in the DMZ (firewalls - servers) should be installed on this type of host.
Full-Duplex
Bastion Host
Subnetting
IPv6
15. Type of cable that is more expensive than UTP and STP - more resistant to EMI - can carry baseband and board band technologies.
High Level Data Link Control (HLDC)
Asynchronous Communication
Coaxial Cables
Password Authentication Protocol (PAP)
16. 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.
Session Initiation Protocol (SIP)
DOS attacks from flooding
OSI Layer 2: Data Link Layer
Metropolitan Area Network (MAN)
17. 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.
Port Numbers
Layer 2 Tunneling Protocol (L2TP)
IGMP
Subnetting
18. New variant to traditional email spam on VoIP networks.
VoIP
Spam over Internet Telephony (SPIT)
Crosstalk
Packet Filtering Firewall
19. 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.
Isochronous Communication Processes
ARP (Address Resolution Protocol)
Classless inter-domain routing (CIDR)
Fiber-optic Cables
20. Protocol that increases address size from 32 bits to 128 bits
IPv6
Point-To-Point (PPP)
Open Relay
Wide Area Network (WAN)
21. 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.
Commonly used in Internet.
Packet Filtering Firewall
Metropolitan Area Network (MAN)
Screened Sub-Net
22. 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.
802.11
ThinNet - aka 10base2
OSI Layer 4: Transport Layer
Application Proxy Firewall
23. 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.
Source Routing
IGMP
Circuit Level Proxy Firewall
Fiber-optic Cables
24. Network segment name for a DMZ created by two physical firewalls.
Source Routing
10baseT
Screened Sub-Net
Spread Spectrum
25. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
Network Address Translator (NAT)
Multi-protocol Label Switching
Virtual Private Network (VPN)
Screened Host Firewall
26. 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.
OSI Layer 7: Application
Channel Service Unit/Data Service Unit (CSU/DSU)
Permanent Virtual Circuit (PVC)
ICMP (Internet Control Message Protocol)
27. This network technology determines which system will send data based on which one has the token.
IPSec
Wireless Application Protocol (WAP)
OSI Layer 1: Physical
Token Passing
28. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Bluejacking
OSI Layer 3: Network Layer
Multilevel Switching
Packet Filtering Firewall
29. 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.
Crosstalk
ThickNet - aka 10base5.
Token Ring (802.5)
Blue Boxing
30. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
OSI Layer 1: Physical
Serial Line Internet Protocol (SLIP)
Subnetting
Synchronous Optical Networks (SONETS)
31. 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.
Fiber Distributed Data Interface (FDDI)
Ethernet (802.3)
Multistation Access Unit (MAU)
OSI Layer 5: Session Layer
32. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Commonly used in Internet.
Loki Attack
Trunk Lines
Ring Topology
33. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
VLAN
Shared Key Authentication (SKA)
Pulse Code Modulation (PCM)
Fiber Distributed Data Interface (FDDI)
34. 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).
Metropolitan Area Network (MAN)
Open System Authentication (OSA)
IPSec
10baseT
35. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
SOCKS Firewall
ARP (Address Resolution Protocol)
High Level Data Link Control (HLDC)
Permanent Virtual Circuit (PVC)
36. 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.
Half-Duplex
Wireless Application Protocol (WAP)
SPIM
Dynamic Packet Filtering
37. Type of firewall that lies between the perimeter router and and LAN.
Application Proxy Firewall
Screened Host Firewall
SPIM
Blue Boxing
38. Problems: Central device is a single point of failure.
Star Topology
Point-To-Point Tunneling Protocol (PPTP)
Token Passing
Ring Topology
39. 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
802.11b
CBC-MAC Protocol (CCMP)
Session Initiation Protocol (SIP)
40. 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.
X.25
T1
OSI Layer 6: Presentation
802.11i
41. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
Screened Sub-Net
IPv6
802.11b
Coaxial Cables
42. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Proxy Firewall
VoIP
Packet Filtering Firewall
Pulse Code Modulation (PCM)
43. Communication devices that determine synchronization scheme before data transmission.
Synchronous Communication
Switched Virtual Circuit (SVC)
Twisted Pair Cables
Extensible Authentication Protocol (EAP)
44. 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
Stateful Firewall
TCP
OSI Layer 1: Physical
45. 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.
ThickNet - aka 10base5.
Dedicated Links
Spread Spectrum
VLAN
46. 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.
Remote Access Servers
Circuit Level Proxy Firewall
Commonly used in Ethernet.
Channel Service Unit/Data Service Unit (CSU/DSU)
47. 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
Port Numbers
Switch
Digital Subscriber Line (DSL)
Fiber-optic Cables
48. Wireless communication that splits total amount of bandwidth into smaller sub-channels. Send and receiver work in one of the channels for a period of time - and then move into a different channel. It uses a portion of the bandwidth - throughput of 1-
Mesh Topology
ICMP (Internet Control Message Protocol)
Frequency Hopping Spread Spectrum (FHSS)
Wide Area Network (WAN)
49. Type of network layout that separates and group computers logically.
Dynamic Packet Filtering
VLAN
Noise
Ethernet (802.3)
50. 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.
DOS attacks from flooding
Frequency Hopping Spread Spectrum (FHSS)
Mesh Topology
Serial Line Internet Protocol (SLIP)