SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
CISSP Telecom And Network Security
Start Test
Study First
Subjects
:
certifications
,
it-skills
,
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. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
Bus Topology
Synchronous Data Link Control (SDLC)
ThickNet - aka 10base5.
T1
2. 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.
OSI Layer 1: Physical
ThinNet - aka 10base2
Wide Area Network (WAN)
Star Topology
3. Standard for transmitting data across the Internet. One is reliable and connection oriented. The other is unreliable and connectionless.
Trunk Lines
Noise
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
IGMP
4. 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.
Open Relay
X.25
Screened Host Firewall
Packet Filtering Firewall
5. 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.
Commonly used in logical bus - Ethernet - token ring.
Subnetting
Trunk Lines
Packet Filtering Firewall
6. 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
Half-Duplex
Fiber Distributed Data Interface (FDDI)
Extensible Authentication Protocol (EAP)
802.16
7. 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).
Proxy Firewall Strengths
IPSec
Asynchronous Transfer Mode (ATM)
Network Address Translator (NAT)
8. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
UDP
Direct Sequence Spread Spectrum (DSSS)
Multistation Access Unit (MAU)
Definition of Protocol
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.
Point-To-Point (PPP)
OSI Layer 3: Network Layer
Pulse Code Modulation (PCM)
Fiber Distributed Data Interface (FDDI)
10. 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.
Session Initiation Protocol (SIP)
ARP Poisoning
Committed Information Rate (CIR)
Open Relay
11. Premium service offered by service providers in frame relay networks that guarantees a company a specified amount of bandwidth.
OSI Data encapsulation
Packet Filtering Firewall
Coaxial Cables
Committed Information Rate (CIR)
12. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
Permanent Virtual Circuit (PVC)
802.11b
Loki Attack
Layers in the TCP/IP Model
13. 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.
Fiber Distributed Data Interface (FDDI)
Open Relay
Asynchronous Transfer Mode (ATM)
Virtual Private Network (VPN)
14. 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.
Asynchronous Transfer Mode (ATM)
Coaxial Cables
Port Numbers
Stateful Firewall
15. Faster because processing is done in the kernel. One network stack is created for each packet. 5th generation firewall - runs at the application layer.
Tree Topology
Kernel Proxy Firewall
Multi-protocol Label Switching
Point-To-Point Tunneling Protocol (PPTP)
16. 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.
Layers in the OSI Model
Carrier sense multiple access with collision detection (CSMA/CD)
Multistation Access Unit (MAU)
T1
17. Developed to replace the aging telephone and analog systems. BRI rate that uses two B channels (send/receive) - and one D channel (control information) - and PRI rate that uses up to 23 B channels. Supports voice - data - and video. Provides up to 1.
Integrated Services Digital Network (ISDN)
Stateful Firewall
VoIP
10baseT
18. 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.
Remote Access Servers
Token Passing
Fiber-optic Cables
Open System Authentication (OSA)
19. 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
Fiber Distributed Data Interface (FDDI)
Layer 2 Tunneling Protocol (L2TP)
802.11b
20. In the OSI layer 5 - these are the types of what?
Synchronous Data Link Control (SDLC)
Simplex: One direction.
IPv6
Multilevel Switching
21. Wireless standard that will improve security of wireless communication
Half-Duplex
802.11
Synchronous Communication
802.11i
22. Used when companies do not want systems to know internal hosts IP addresses. Enables companies to use private - nonroutable IP addresses.
High Level Data Link Control (HLDC)
Network Address Translator (NAT)
Distributed Environment Challenge
UDP
23. 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.
OSI Layer 3: Network Layer
Frame Relay
Packet Filtering Firewall
Circuit Level Proxy Firewall
24. 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.
Token Ring (802.5)
Challenge Handshake Authentication Protocol (CHAP)
Screened Host Firewall
VoIP
25. Device used within companies to provide multiple services to users throughout a building or facility. Example - dialing 9 to place outbound phone calls. Security concerns: default configurations and passwords - maintenance modems disabled - unused co
Ring Topology
Spread Spectrum
Private Branch Exchange (PBX)
DOS attacks from flooding
26. Security wireless standard that rotates encryption keys - stronger IV values - MAC codes for packet integrity. Works in combination with WEP.
Trunk Lines
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
Temporal Key Integrity Protocol (TKIP)
802.11i
27. 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
Bus Topology
Token Ring (802.5)
Circuit Level Proxy Firewall
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.
Plenum-rated Cables
Synchronous Optical Networks (SONETS)
Commonly used in FDDI.
Application Proxy vs. Circuit Level
29. 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.
CBC-MAC Protocol (CCMP)
Application Proxy Firewall
Private Branch Exchange (PBX)
Asynchronous Communication
30. 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.
UDP
Screened Host Firewall
OSI Layer 2: Data Link Layer
OSI Layer 5: Session Layer
31. Proprietary protocol that enables secondary devices to communicate with primary stations or mainframes in an IBM architecture. Developed in the mid-70's for use in a systems network architecture (SNA) environment. First synchronous - link layer - bit
Digital Subscriber Line (DSL)
Full-Duplex
Definition of Protocol
Synchronous Data Link Control (SDLC)
32. Type of cabling problem where data is corrupted going from end to end due to surrounding devices.
Noise
Wireless Application Protocol (WAP)
Packet Filtering Firewall
Temporal Key Integrity Protocol (TKIP)
33. Type of topology that where all computers are connected to a central device (AKA hub) - which provides more resilience for the network.
802.11b
Switched Virtual Circuit (SVC)
Commonly used in logical bus - Ethernet - token ring.
Channel Service Unit/Data Service Unit (CSU/DSU)
34. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
Bus Topology
Packet Switching
802.11a
Shared Key Authentication (SKA)
35. Standard that addresses wireless MAN technologies.
LLC (Logical Link Control - 802.2)
Mesh Topology
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
802.16
36. Protocol that increases address size from 32 bits to 128 bits
OSI Layer 5: Session Layer
Simplex: One direction.
Frame Relay
IPv6
37. 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.
Classless inter-domain routing (CIDR)
Packet Filtering Firewall
Frame Relay
Service Set ID (SSID)
38. Protocol based on the first version - however this version allows for fixed bandwidth to be allocated for specific applications.
802.11
DOS attacks from flooding
Wide Area Network (WAN)
FDDI-2
39. 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.
Fiber-optic Cables
Digital Subscriber Line (DSL)
X.25
LLC (Logical Link Control - 802.2)
40. A technique that allows multiple layers of nesting. Example - IPSec tunnel can originate or terminate at a different IPSec site along the way.
Commonly used in logical bus - Ethernet - token ring.
Proxy Firewall
Iterated Association
Serial Line Internet Protocol (SLIP)
41. 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.
Commonly used in logical bus - Ethernet - token ring.
Tree Topology
Bus Topology
Synchronous Data Link Control (SDLC)
42. 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.
Open System Authentication (OSA)
Multi-protocol Label Switching
Stateful Firewall
Asynchronous Transfer Mode (ATM)
43. 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
Screened Sub-Net
Bus Topology
Switch
44. Type of ethernet implementation that uses a thicker coaxial cable - which allows a longer cable length to be used.
ThickNet - aka 10base5.
T1
Subnetting
Serial Line Internet Protocol (SLIP)
45. 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.
Pulse Code Modulation (PCM)
Metropolitan Area Network (MAN)
ARP Poisoning
Isochronous Communication Processes
46. SMTP server that is configured for sending email from any source to and destination.
OSI Layer 3: Network Layer
Subnetting
Source Routing
Open Relay
47. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Frame Relay
Bluejacking
Remote Access Servers
Layers in the OSI Model
48. 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.
Commonly used in logical bus - Ethernet - token ring.
OSI Layer 6: Presentation
OSI Layer 3: Network Layer
Coaxial Cables
49. 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.
Definition of Protocol
Commonly used in FDDI.
Point-To-Point Tunneling Protocol (PPTP)
802.11
50. Type of firewall that lies between the perimeter router and and LAN.
Screened Host Firewall
Trunk Lines
Crosstalk
Application Proxy vs. Circuit Level