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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. In a token ring network - each computer is connected to this - which acts as a central hub.
Password Authentication Protocol (PAP)
Multistation Access Unit (MAU)
Layers in the OSI Model
Bastion Host
2. 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.
Asynchronous Communication
Star Topology
Direct Sequence Spread Spectrum (DSSS)
OSI Layer 5: Session Layer
3. Identifys a WLAN. Can be used to segment environments into different WLANS.
OSI Layer 6: Presentation
Service Set ID (SSID)
802.16
Classless inter-domain routing (CIDR)
4. 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
Proxy Firewall Strengths
Open System Authentication (OSA)
Bastion Host
T3
5. Problems: Requires more expense in cabling and extra effort to track down cable faults.
Trunk Lines
Port Numbers
Source Routing
Mesh Topology
6. Both directions - both applications can send information at a time. Session Layer Communication Modes
Layers in the TCP/IP Model
Half-Duplex
802.15
Full-Duplex
7. Communication devices that are not synchronized - meaning all devices can send data at will - send a sequence of bits framed with a start and stop bit.
Asynchronous Transfer Mode (ATM)
Asynchronous Communication
Extensible Authentication Protocol (EAP)
Layers in the TCP/IP Model
8. 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.
ThinNet - aka 10base2
ICMP (Internet Control Message Protocol)
Subnetting
UDP
9. 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.
OSI Layer 4: Transport Layer
DOS attacks from flooding
ThickNet - aka 10base5.
High Level Data Link Control (HLDC)
10. Protocol that is used by remote users to authenticate over PPP lines. Sends passwords over clear text. Vulnerable to MITM attacks.
Password Authentication Protocol (PAP)
OSI Layer 6: Presentation
Virtual Private Network (VPN)
Noise
11. 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.
Shared Key Authentication (SKA)
Serial Line Internet Protocol (SLIP)
Trunk Lines
Cable Modem
12. 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.
Subnetting
X.25
IPv6
Pulse Code Modulation (PCM)
13. 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).
Network Address Translator (NAT)
Multilevel Switching
Cable Modem
VLAN
14. 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.
OSI Layer 4: Transport Layer
Private Branch Exchange (PBX)
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Bluejacking
15. 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
Application Proxy vs. Circuit Level
OSI Layer 2: Data Link Layer
Fiber-optic Cables
Bluejacking
16. 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.
Application Proxy Firewall
Network Address Translator (NAT)
Isochronous Communication Processes
Port Numbers
17. 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
Remote Access Servers
Switch
Noise
Attenuation
18. 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.
Carrier sense multiple access with collision detection (CSMA/CD)
Packet Filtering Firewall
FDDI-2
Session Initiation Protocol (SIP)
19. Type of firewall that lies between the perimeter router and and LAN.
OSI Layer 6: Presentation
Coaxial Cables
Crosstalk
Screened Host Firewall
20. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
OSI Layer 1: Physical
Point-To-Point (PPP)
Temporal Key Integrity Protocol (TKIP)
TCP
21. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
Commonly used in Internet.
Layer 2 Tunneling Protocol (L2TP)
DNS (Domain Name System)
Tree Topology
22. 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
Integrated Services Digital Network (ISDN)
Dynamic Packet Filtering
T1
23. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same ring.
Ring Topology
LLC (Logical Link Control - 802.2)
Shared Key Authentication (SKA)
T3
24. 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.
Spam over Internet Telephony (SPIT)
Carrier sense multiple access with collision detection (CSMA/CD)
LLC (Logical Link Control - 802.2)
802.11i
25. Combines voice and data over the same IP network media and protocol. Reduces the cost of implementing and maintaining two different networks.
Distributed Environment Challenge
Frame Relay
VoIP
FDDI-2
26. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
FDDI-2
Router
OSI Layer 1: Physical
Bus Topology
27. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Synchronous Optical Networks (SONETS)
Simplex: One direction.
Noise
Star Topology
28. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Carrier sense multiple access with collision detection (CSMA/CD)
Subnetting
Bus Topology
Shared Key Authentication (SKA)
29. 4: Application - 3: Host-to-Host - 2: Internet - 1: Network Access - 3 -1 -1 -2 will map to the OSI model.
Commonly used in FDDI.
Asynchronous Communication
Ring Topology
Layers in the TCP/IP Model
30. Type of network layout that is a large geographical region connecting more that one LAN.
Dual-Homed Firewall
UDP
T1
Wide Area Network (WAN)
31. 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.
Stateful Firewall
OSI Layer 6: Presentation
T1
Router
32. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
Token Passing
Distributed Environment Challenge
Kernel Proxy Firewall
802.11b
33. 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.
Carrier sense multiple access with collision detection (CSMA/CD)
ICMP (Internet Control Message Protocol)
OSI Layer 4: Transport Layer
Virtual Private Network (VPN)
34. Type of cabling problem where loss of signal strength occurs as it travels due to cable exceeding its recommended length.
OSI Layer 1: Physical
OSI Layer 3: Network Layer
Attenuation
Permanent Virtual Circuit (PVC)
35. Spam over IM
Network Address Translator (NAT)
IPSec
Direct Sequence Spread Spectrum (DSSS)
SPIM
36. Created because it was clear that available IP addresses were running out. Provides flexibility to increase or decrease the IP classes sizes as necessary.
Spam over Internet Telephony (SPIT)
ThickNet - aka 10base5.
Committed Information Rate (CIR)
Classless inter-domain routing (CIDR)
37. 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.
High Level Data Link Control (HLDC)
Spam over Internet Telephony (SPIT)
Kernel Proxy Firewall
Synchronous Communication
38. Application layer request/response protocol widely used for VoIP communication sessions. Transported by UDP - makes use of TCP - and is vulnerable to sniffing attacks.
X.25
IPSec
Session Initiation Protocol (SIP)
Open System Authentication (OSA)
39. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
Application Proxy Firewall
Layers in the OSI Model
Serial Line Internet Protocol (SLIP)
Classless inter-domain routing (CIDR)
40. 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
ARP Poisoning
Plenum-rated Cables
Crosstalk
41. Type of network layout that separates and group computers logically.
Private Branch Exchange (PBX)
Virtual Private Network (VPN)
VLAN
ThickNet - aka 10base5.
42. 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.
Service Set ID (SSID)
Wide Area Network (WAN)
Layer 2 Tunneling Protocol (L2TP)
Point-To-Point Tunneling Protocol (PPTP)
43. 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.
Definition of Protocol
Repeaters
CBC-MAC Protocol (CCMP)
Twisted Pair Cables
44. 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
OSI Layer 1: Physical
Packet Switching
Switched Virtual Circuit (SVC)
Fiber Distributed Data Interface (FDDI)
45. The original technique to digitized voice with 8 bits of sampling 8 -000 times per second - which yields 64 Kbps for one voice channel.
Challenge Handshake Authentication Protocol (CHAP)
OSI Layer 4: Transport Layer
Full-Duplex
Pulse Code Modulation (PCM)
46. Type of wireless security standard that uses AES in CBC mode.
Wireless Application Protocol (WAP)
CBC-MAC Protocol (CCMP)
Ethernet (802.3)
Blue Boxing
47. Type of topology where all computers are connected by a unidirectional transmission link - and the cable is in a closed loop.
Cable Modem
Tree Topology
Switch
Commonly used in FDDI.
48. 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.
Switch
OSI Data encapsulation
Ethernet (802.3)
X.25
49. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
802.11a
Cable Modem
High Level Data Link Control (HLDC)
Router
50. 7: Application - 6: Presentation - 5: Session - 4: Transport - 3: Network - 2: Data Link - 1: Physical - Remember 'All People Seem To Need Data Processing'
Permanent Virtual Circuit (PVC)
Layers in the OSI Model
Integrated Services Digital Network (ISDN)
Pulse Code Modulation (PCM)