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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. 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.
Session Initiation Protocol (SIP)
Fiber-optic Cables
Repeaters
Frame Relay
2. Protocol that increases address size from 32 bits to 128 bits
Trunk Lines
IPv6
Blue Boxing
Classless inter-domain routing (CIDR)
3. 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.
OSI Layer 1: Physical
Subnetting
Synchronous Optical Networks (SONETS)
ThickNet - aka 10base5.
4. Type of network that allows large IP ranges to be divided into smaller - logical - and easier to maintain network segments.
Attenuation
CBC-MAC Protocol (CCMP)
Subnetting
Blue Boxing
5. Problems: If one station experiences a problem - it can negatively affect surrounding computers on the same cable.
Channel Service Unit/Data Service Unit (CSU/DSU)
Bus Topology
Commonly used in Internet.
Port Numbers
6. Protocol that resolves host names into IP addresses and has distributed databases all over the Internet to provide name resolution.
Session Initiation Protocol (SIP)
DNS (Domain Name System)
Multilevel Switching
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
7. 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.
UDP
Metropolitan Area Network (MAN)
Circuit Switching
Port Numbers
8. 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
Switch
IGMP
Network Address Translator (NAT)
Router
9. 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.
Commonly used in Ethernet.
Layer 2 Tunneling Protocol (L2TP)
Multistation Access Unit (MAU)
Ring Topology
10. 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.
Wireless Application Protocol (WAP)
Reverse Address Resolution Protocol (RARP )
Password Authentication Protocol (PAP)
Open System Authentication (OSA)
11. Network segment name for a DMZ created by two physical firewalls.
Screened Sub-Net
802.11b
Switch
Noise
12. 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.
Extensible Authentication Protocol (EAP)
Commonly used in Internet.
Remote Access Servers
LLC (Logical Link Control - 802.2)
13. 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.
Application Proxy vs. Circuit Level
T3
Bastion Host
Asynchronous Communication
14. Type of ethernet implementation that uses a standard coaxial cable with a maximum cable length of 185 meters. 10Mbps.
ThinNet - aka 10base2
Dynamic Packet Filtering
Session Initiation Protocol (SIP)
10baseT
15. 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
Reverse Address Resolution Protocol (RARP )
Classless inter-domain routing (CIDR)
OSI Layer 7: Application
Packet Switching
16. 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.
Trunk Lines
Definition of Protocol
Synchronous Communication
Wired Equivalent Privacy (WEP)
17. Protocol that translates IP address into a MAC address (physical Ethernet address)
Proxy Firewall Strengths
IGMP
Repeaters
ARP (Address Resolution Protocol)
18. Communication devices that determine synchronization scheme before data transmission.
Point-To-Point (PPP)
Kernel Proxy Firewall
Synchronous Communication
OSI Layer 6: Presentation
19. Protocol that translates a MAC address into an IP address.
Reverse Address Resolution Protocol (RARP )
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
CBC-MAC Protocol (CCMP)
Shared Key Authentication (SKA)
20. Works like a private line for a customer with an agreed upon bandwidth. Path is programmed into the WAN devices.
802.11a
IGMP
Permanent Virtual Circuit (PVC)
Stateful Firewall
21. 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.
Router
Commonly used in logical bus - Ethernet - token ring.
Stateful Firewall
Full-Duplex
22. 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-
Commonly used in Ethernet.
Bus Topology
DNS (Domain Name System)
Frequency Hopping Spread Spectrum (FHSS)
23. Wireless LAN standard that operates in a 2.4Ghz range - 11Mbps - DSSS
802.11b
Frame Relay
Metropolitan Area Network (MAN)
DOS attacks from flooding
24. This dedicated connection provides up to 1.544 Mbps bandwidth over 1 T1 and 24 time divided channels.
FDDI-2
T1
Loki Attack
Classless inter-domain routing (CIDR)
25. 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.
Layer 2 Tunneling Protocol (L2TP)
Iterated Association
Synchronous Communication
Proxy Firewall Strengths
26. 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
Pulse Code Modulation (PCM)
FDDI-2
T1
Multi-protocol Label Switching
27. Wireless communication that distributes individual signals across the allocated frequencies.
Blue Boxing
Spread Spectrum
Port Numbers
Twisted Pair Cables
28. 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.
Source Routing
Network Address Translator (NAT)
Service Set ID (SSID)
Twisted Pair Cables
29. 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.
Plenum-rated Cables
Wired Equivalent Privacy (WEP)
Distributed Environment Challenge
Permanent Virtual Circuit (PVC)
30. Malware attack that sends commands inside of an ICMP packet.
802.11a
FDDI-2
Loki Attack
Point-To-Point Tunneling Protocol (PPTP)
31. Server that can be configured to hang up and call back remote users - but this can be compromise by enabling call forwarding.
Remote Access Servers
IPSec
T1
Point-To-Point (PPP)
32. 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.
OSI Data encapsulation
Noise
Router
Simplex: One direction.
33. Type of wireless authentication where a shared WEP key is used to encrypt a nonce for authentication.
Shared Key Authentication (SKA)
Channel Service Unit/Data Service Unit (CSU/DSU)
Private Branch Exchange (PBX)
Kernel Proxy Firewall
34. Protocol that is reliable and connection-oriented - which means it ensures delivery through acknowledgements - sequencing - detection and correction.
Open System Authentication (OSA)
Classless inter-domain routing (CIDR)
Full-Duplex
TCP
35. 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.
Extensible Authentication Protocol (EAP)
Virtual Private Network (VPN)
Layers in the TCP/IP Model
Synchronous Optical Networks (SONETS)
36. 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.
Application Proxy Firewall
TCP/IP. TCP is reliable and connection oriented - IP is unreliable and connectionless.
OSI Layer 6: Presentation
OSI Layer 5: Session Layer
37. SMTP server that is configured for sending email from any source to and destination.
Simplex: One direction.
Open System Authentication (OSA)
Open Relay
High Level Data Link Control (HLDC)
38. Type of network layout that separates and group computers logically.
Remote Access Servers
Digital Subscriber Line (DSL)
Packet Filtering Firewall
VLAN
39. 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.
Point-To-Point Tunneling Protocol (PPTP)
Token Ring (802.5)
ThinNet - aka 10base2
Port Numbers
40. 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.
Remote Access Servers
OSI Layer 1: Physical
Metropolitan Area Network (MAN)
Commonly used in logical bus - Ethernet - token ring.
41. 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.
802.15
Circuit Level Proxy Firewall
Challenge Handshake Authentication Protocol (CHAP)
Pulse Code Modulation (PCM)
42. Blue tooth vulnerability where an attacker sends messages to a receiver that is in discovery mode.
Distributed Environment Challenge
T3
OSI Layer 1: Physical
Bluejacking
43. 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.
Open Relay
High Level Data Link Control (HLDC)
Mesh Topology
Frame Relay
44. Wireless LAN standard that operates in a 5Ghz range - 54Mpbs - and uses OFDM spread spectrum.
Session Initiation Protocol (SIP)
Commonly used in Internet.
Frequency Hopping Spread Spectrum (FHSS)
802.11a
45. 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.
Iterated Association
T3
X.25
OSI Layer 1: Physical
46. Protocol that is best-effort - connectionless - and does not sent acknowledgements.
Application Proxy vs. Circuit Level
Proxy Firewall
UDP
Synchronous Optical Networks (SONETS)
47. 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.
Iterated Association
ARP Poisoning
OSI Layer 4: Transport Layer
Circuit Switching
48. 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.
SOCKS Firewall
ARP Poisoning
X.25
Bastion Host
49. 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.
802.16
Multistation Access Unit (MAU)
Frame Relay
Direct Sequence Spread Spectrum (DSSS)
50. An older protocol that was used by ISP's to encapsulate data to be sent over dial up connections
T3
Serial Line Internet Protocol (SLIP)
Layers in the TCP/IP Model
IGMP